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https://github.com/RunaCapital/awesome-oss-alternatives

Awesome list of open-source startup alternatives to well-known SaaS products 🚀
https://github.com/RunaCapital/awesome-oss-alternatives

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Awesome list of open-source startup alternatives to well-known SaaS products 🚀

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# Awesome open-source alternatives to SaaS

[![Awesome](https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg)](https://github.com/sindresorhus/awesome)



Awesome list of open-source startup alternatives to established SaaS products. Maintained by folks at [![Runa Capital](https://img.shields.io/static/v1?label=&message=%20&style=social&logoWidth=50&logo=data:image/png;base64,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)](https://runacap.com) 



Also checkout our [ROSS index](https://runacap.com/ross-index/): fastest-growing open-source startups, every quarter.



## Criteria

Open-source company is added to the list if: 

1. Its product is strongly based on an open-source repo 

2. It has a well-known closed-source competitor, solving a similar business problem

3. It is a private for-profit company, founded in the last 10 years

4. Its repo has 100+ stars on GitHub



Things change really fast in the startup world, so this list can neither be fully complete, nor 100% up to date.



Don't hesitate to [contribute](.github/CONTRIBUTING.md) and add new startups. Let's build the most comprehensive list together.



Any questions or suggestions? Feel free to DM project maintainer [@garrrikkotua](https://twitter.com/garrrikkotua)



--------------------



## Startup List



All startups in the list are sorted by categories and sorted in alphabetical order. If you click on the stars badge you will get to the product's repo. 

**Have a good search!**



|Category|Company|Description|GitHub Stars|Alternative to|

|:-------|:------|:----------|:----------:|:------------:|

API Gateway|[Apache APISIX](https://github.com/apache/apisix)|Cloud Native API Gateway under the Apache Software Foundation||[apigee](https://cloud.google.com/apigee)

API Platform|[Firecamp](https://firecamp.dev/)|DX first open-source API devtool||[Postman](https://www.postman.com/)

API Platform|[Fusio](https://github.com/apioo/fusio)|API management platform||[Postman](https://www.postman.com/)

API Platform|[Hoppscotch](https://hoppscotch.io/)|API development ecosystem||[Postman](https://www.postman.com/)

API Platform|[Keploy](https://keploy.io/)|e2e Testing and Data Mocking||[Smartbear](https://smartbear.com/), [Newman](https://learning.postman.com/docs/running-collections/using-newman-cli/command-line-integration-with-newman/)

API Platform|[Step CI](https://stepci.com/)|API Testing and Monitoring||[Checkly](https://www.checklyhq.com), [Postman](https://www.postman.com/)

Auth & SSO|[BoxyHQ](https://boxyhq.com)|Enterprise Readiness made simple||[Auth0](https://auth0.com/)|

Auth & SSO|[Cerbos](https://cerbos.dev/)|Granular access control||[Okta](https://okta.com/), [Auth0](https://auth0.com/)

Auth & SSO|[FusionAuth](https://fusionauth.io/)|User authentication and session management framework||[Okta](https://www.okta.com/), [Auth0](https://auth0.com/)|

Auth & SSO|[Hanko](https://www.hanko.io)|Passkey-first authentication framework||[Okta](https://okta.com/), [Auth0](https://auth0.com/)

Auth & SSO|[Keycloak](https://www.cloud-iam.com/)|User authentication and session management framework||[Okta](https://okta.com/), [Auth0](https://auth0.com/)

Auth & SSO|[OPAL (Permit.io)](https://www.opal.ac/)|Authorization administration framework (Open Policy)||[Okta](https://okta.com/), [Auth0](https://auth0.com/)

Auth & SSO|[Ory](https://www.ory.sh/)|Identity platform||[Okta](https://okta.com/), [Auth0](https://auth0.com/)

Auth & SSO|[Oso](https://www.osohq.com/)|Authorization building framework||[Okta](https://okta.com/), [Auth0](https://auth0.com/)

Auth & SSO|[Supertokens](https://supertokens.io/)|User authentication and session management framework||[Okta](https://okta.com/), [Auth0](https://auth0.com/)

Auth & SSO|[Warrant](https://warrant.dev/)|Authorization and access control as a service||[Okta](https://okta.com/), [Auth0](https://auth0.com/)

Auth & SSO|[Zitadel](https://zitadel.com/)|User authentication and session management framework||[Okta](https://okta.com/), [Auth0](https://auth0.com/)|

Backend as a service|[AceBase](https://acebase.io/)|Backend server with REST APIs to manage core backend needs||[Firebase](https://firebase.google.com/)

Backend as a service|[Amplication](https://amplication.com/)|Backend server with REST and GraphQL APIs to manage core backend needs||[Firebase](https://firebase.google.com/)

Backend as a service|[Appwrite](https://appwrite.io/)|Backend server with REST APIs to manage core backend needs||[Firebase](https://firebase.google.com/)

Backend as a service|[CASE](https://case.app)|Lightweight Backend-as-a-Service with essential features||[Firebase](https://firebase.google.com/)|

Backend as a service|[Encore](https://encore.dev/)|Backend Development Engine for cloud-based apps, APIs, and distributed systems||[Firebase](https://firebase.google.com/)|

Backend as a service|[Kuzzle](https://kuzzle.io/kuzzle-backend/)|Backend server with REST APIs to manage core backend needs||[Firebase](https://firebase.google.com/)

Backend as a service|[Nhost](https://nhost.io/)|Backend server with GraphQL||[Firebase](https://firebase.google.com/)

Backend as a service|[PocketBase](https://pocketbase.io/)|Backend server with REST APIs to manage core backend needs||[Firebase](https://firebase.google.com/)|

Backend as a service|[Supabase](https://supabase.io/)|Backend server with REST APIs to manage core backend needs||[Firebase](https://firebase.google.com/)

Business Intelligence|[Metabase](https://www.metabase.com/)|Business intelligence software||[Tableau](https://www.tableau.com/), [Power BI](https://powerbi.microsoft.com/), [DataStudio](https://datastudio.google.com/)

Business Intelligence|[Preset](https://www.preset.io)|Modern BI platform powered by Apache Superset||[PowerBI](https://powerbi.microsoft.com/), [Tableau](https://www.tableau.com/), [Mode Analytics](https://mode.com/)|

CMS|[Builder](https://builder.io/)|Drag and drop page builder and CMS||[Contentful](https://www.contentful.com/)

CMS|[Concrete](https://www.concretecms.com/)|CMS for teams||[Contentful](https://www.contentful.com/)|

CMS|[Directus](https://directus.io/)|Data platform which wraps any database with an intuitive app||[Contentful](https://www.contentful.com/)

CMS|[Ghost](https://ghost.org/)|Headless Node.js publishing platform||[Medium](https://www.medium.com/), [Substack](https://substack.com/)

CMS|[Netlify CMS](https://www.netlifycms.org/)|Git-based CMS for static site generators||[Contentful](https://www.contentful.com/)

CMS|[Plasmic](https://plasmic.app/)|The headless page builder for singe-page frameworks||[Contentful](https://www.contentful.com/)|

CMS|[Strapi](https://strapi.io/)|Node.js Headless CMS to build customisable APIs||[Contentful](https://www.contentful.com/)

CMS|[Sulu](https://sulu.io/)|Modern Symfony based CMS||[Contentful](https://www.contentful.com/)

CMS|[Tina](https://tina.io/)|Visual editor for React websites||[Contentful](https://www.contentful.com/)

CMS|[Webiny](https://www.webiny.com/)|Enterprise serverless CMS||[Contentful](https://www.contentful.com/)

Cloud Data Warehouse|[Databend](https://databend.rs)|Elastic and Workload-Aware Modern Cloud Data Warehouse||[Snowflake](https://www.snowflake.com)|

Cloud Development Environment|[Gitpod](https://gitpod.io)|Automated provisioning of cloud development environments with multiple git providers & IDEs||[Codespaces](https://github.com/features/codespaces)|

Cloud Storage|[Minio](https://min.io/)|S3 compatible object storage||[Amazon S3](https://aws.amazon.com/s3/)|

Cloud Storage|[Storj](https://www.storj.io/)|Decentralized cloud storage||[Amazon S3](https://aws.amazon.com/s3/)|

Cloud-Native Application Protection Platform|[Deepfence ThreatMapper](https://github.com/deepfence/ThreatMapper)|Apache v2, powerful runtime vulnerability and compliance scanner for kubernetes, virtual machines, cloud and serverless.||[Palo Alto Prisma](https://www.paloaltonetworks.com/prisma/cloud)|

Communication|[Fonoster](https://fonoster.com/)|APIs for SMS, voice and video||[Twilio](https://www.twilio.com/)|

Communication|[Novu](https://novu.co/)|Components and APIs for email, sms, direct and push||[Courier](https://www.courier.com/), [MagicBell](https://www.magicbell.com/), [Knock](https://knock.app/)|

Community Platform|[crowd.dev](https://crowd.dev/)|Suite of community and data tools built to unlock community-led growth for your organization||[Orbit](https://orbit.love/), [Common Room](https://www.commonroom.io/), [Commsor](https://www.commsor.com/)|

Customer Data Platform|[Jitsu](https://jitsu.com/)|Fully-scriptable data ingestion engine for modern data teams||[Segment](https://segment.com/)

Customer Data Platform|[Rudderstack](https://rudderstack.com/)|Customer data platform for developers||[Segment](https://segment.com/)

Customer Data Platform|[Tracardi](http://www.tracardi.com/)|Customer Data Platform with Consumer Journey automation engine||[Segment](https://segment.com/), [Zapier](https://zapier.com/)

Customer Engagement|[Chaskiq](https://chaskiq.io/)|Live chat widget||[Intercom](https://www.intercom.com/), [Zendesk](https://www.zendesk.com/)

Customer Engagement|[Chatwoot](https://www.chatwoot.com/)|Live chat widget||[Intercom](https://www.intercom.com/), [Zendesk](https://www.zendesk.com/)

Customer Engagement|[Papercups](https://papercups.io/)|Live chat widget||[Intercom](https://www.intercom.com/), [Zendesk](https://www.zendesk.com/)

Cybersecurity|[CloudQuery](https://cloudquery.io/)|Assess, audit, and evaluate the configurations of your cloud assets.||[AWS Config](https://aws.amazon.com/config/), [GCP Cloud Asset Inventory](https://cloud.google.com/asset-inventory), [AWS GuardDuty](https://aws.amazon.com/guardduty/)|

Cybersecurity|[CrowdSec](http://crowdsec.net/)|Collaborative IPS able to analyze visitor behavior and to provide an adapted response to all kinds of attacks.||[GreyNoise](https://www.greynoise.io/)|

Cybersecurity|[Faraday](https://faradaysec.com)|Open Source Vulnerability Management and Orchestration Platform||[Plextrac](https://plextrac.com//), [Vulcan](https://vulcan.io/)|

Cybersecurity|[Firezone](https://www.firez.one/)|VPN Server & Firewall for teams||[OpenVPN Access Server](https://openvpn.net/access-server/)

Cybersecurity|[Gravitl](https://gravitl.com)|WireGuard virtual networking platform (VPN)||[Tailscale](https://tailscale.com/), [OpenVPN](https://openvpn.net/)|

Cybersecurity|[LunaTrace](https://www.lunasec.io/)|Dependency Vulnerability Scanner and SBOM Inventory||[GitHub Dependabot](https://github.blog/2020-06-01-keep-all-your-packages-up-to-date-with-dependabot/), [Snyk.io](https://snyk.io/), [SonaType Nexus](https://www.sonatype.com/products/vulnerability-scanner)|

Cybersecurity|[Matano](https://www.matano.dev)|Open source cloud-native security lake platform (SIEM alternative) for threat hunting, detection & response, and cybersecurity analytics at petabyte scale on AWS||[Splunk](https://www.splunk.com/), [Elastic Cloud](https://www.elastic.co/elastic-stack/)|

Cybersecurity|[NetBird](https://netbird.io)|Zero Configuration Mesh VPN for Business||[Tailscale](https://tailscale.com/), [OpenVPN](https://openvpn.net/)|

Cybersecurity|[Nuclei](https://nuclei.projectdiscovery.io/)|Vulnerability scanner based on simple YAML based DSL||[Tenable Nessus](https://www.tenable.com/products/nessus)|

Design|[Modulz](https://www.modulz.app/)|Code-based tool for designing and prototyping||[Figma](https://www.figma.com/)|

Design|[Penpot](https://penpot.app/)|Design & prototyping platform||[Figma](https://www.figma.com/)|

Digital Signature|[DocuSeal](https://docuseal.co)|Digital Signing Infrastructure||[DocuSign](https://www.docusign.com/)|

Digital Signature|[Documenso](https://documenso.com)|Digital Signing Infrastructure||[DocuSign](https://www.docusign.com/)|

Digital Signature|[LibreSign](https://libresign.coop/)|Digital document signer||[DocuSign](https://www.docusign.com/)

E-commerce|[Bagisto](https://bagisto.com/en/)|Headless e-commerce platform||[Shopify](https://www.shopify.com/), [Ecwid](https://www.ecwid.com/)

E-commerce|[Medusa](https://www.medusajs.com/)|Headless e-commerce platform||[Shopify](https://www.shopify.com/), [Ecwid](https://www.ecwid.com/)

E-commerce|[Saleor](https://saleor.io/)|Headless e-commerce platform||[Shopify](https://www.shopify.com/), [Ecwid](https://www.ecwid.com/)

E-commerce|[Shuup](https://shuup.com)|Headless e-commerce platform||[Shopify](https://www.shopify.com/), [Ecwid](https://www.ecwid.com/)

E-commerce|[Sylius](https://sylius.com/)|Headless e-commerce platform||[Shopify](https://www.shopify.com/), [Ecwid](https://www.ecwid.com/)

E-commerce|[Vendure](https://www.vendure.io/)|Headless e-commerce platform||[Shopify](https://www.shopify.com/), [Ecwid](https://www.ecwid.com/)

E-commerce|[Vue Storefront](https://www.vuestorefront.io/)|Frontend for e-commerce platform||[Shogun](https://getshogun.com/)

ELT / ETL|[Airbyte](https://airbyte.io/)|Data integration platform||[Fivetran](https://fivetran.com/)

ELT / ETL|[Benthos](https://benthos.dev/)|Data streaming processor with yaml-driven pipeline configuration||[Fivetran](https://fivetran.com/)

ELT / ETL|[Dagster](https://dagster.io/)|Orchestration platform for data assets||[Fivetran](https://fivetran.com/)

ELT / ETL|[Kestra](https://kestra.io/)|orchestration and scheduling platform||[Fivetran](https://fivetran.com/)

ELT / ETL|[Orchest](https://www.orchest.io/)|No-code data pipelines builder||[Fivetran](https://fivetran.com/)

ELT / ETL|[Prefect](https://www.prefect.io/)|Data orchestration platform for a modern data stack||[Fivetran](https://fivetran.com/)

ELT / ETL|[Selefra](https://www.selefra.io/)|An open-source policy-as-code software that provides analytics for multi-cloud and SaaS.||[Fivetran](https://fivetran.com/)

ERP|[DoliCloud](https://dolicloud.com) | Business management suite (ERP and CRM)||[Oracle Fusion ERP Cloud](https://www.oracle.com/erp),[Odoo](https://odoo.com/),[Microsoft Dynamics](https://dynamics.microsoft.com/)

ERP|[ERPNext](https://erpnext.com) | Agile, modern, module based Business management suite||[SAP Business One](https://www.sap.com/products/business-one.html), [Odoo](https://odoo.com/)

Email marketing|[Keila](https://www.keila.io/)|Email newsletter tool||[Mailchimp](https://mailchimp.com), [Sendinblue](https://www.sendinblue.com)|

Enterprise Search|[AppBase](https://www.appbase.io/)|Search UI components for React and Vue||[Algolia](https://www.algolia.com/)

Enterprise Search|[Jina.ai](https://jina.ai/)|Neural search framework for 𝙖𝙣𝙮 kind of data (including images)||[Algolia](https://www.algolia.com/)

Enterprise Search|[Manticore Search](https://manticoresearch.com/)|Easy to use open source fast database for search||[Elastic Cloud](https://www.elastic.co/elastic-stack/)

Enterprise Search|[Meilisearch](https://www.meilisearch.com/)|Typo tolerant search engine||[Algolia](https://www.algolia.com/)

Enterprise Search|[Qdrant](https://qdrant.tech/)|Vector similarity search engine with extended filtering support||[Google Vertex AI](https://cloud.google.com/vertex-ai), [Algolia](https://www.algolia.com/)|

Enterprise Search|[SeMI](https://www.semi.technology/)'s [Weaviate](https://github.com/semi-technologies/weaviate)|Real-time vector search engine||[Google Vertex AI](https://cloud.google.com/vertex-ai), [Algolia](https://www.algolia.com/)

Enterprise Search|[TypeSense](https://typesense.org/)|Typo tolerant fuzzy search engine||[Algolia](https://www.algolia.com/)

Enterprise Search|[Zilliz](https://zilliz.com)'s [Milvus](https://milvus.io)|Vector database for AI applications||[Google Vertex AI](https://cloud.google.com/vertex-ai)

Enterprise Search|[Zinc Labs](https://www.zinclabs.io)'s [Zinc](https://github.com/prabhatsharma/zinc)|Cloud native full text search||[Elastic Cloud](https://www.elastic.co/elastic-stack/)

Enterprise Search|[deepset](https://www.deepset.ai/)|NLP platform to build enterprise-grade semantic search||[AWS Kendra](https://aws.amazon.com/kendra/), [QnA Maker](https://www.qnamaker.ai/)|

Feature flag and toggle management|[FlagSmith](https://flagsmith.com/)|Feature Flag & Remote Config Service||[LaunchDarkly](https://launchdarkly.com/)

Feature flag and toggle management|[GrowthBook](https://www.growthbook.io/)|Feature flags and A/B testing||[LaunchDarkly](https://launchdarkly.com/)

Feature flag and toggle management|[Unleash](https://www.getunleash.io/)|Feature flags platform||[LaunchDarkly](https://launchdarkly.com/)

File Hosting|[Filestash](https://www.filestash.app/)|A file manager that let you manage your data anywhere it is located||[Dropbox](https://www.dropbox.com/), [Google Drive](https://drive.google.com/)|

File Hosting|[Nextcloud](https://nextcloud.com/)|A personal cloud which runs on your own server||[Dropbox](https://www.dropbox.com/), [Google Drive](https://drive.google.com/)|

File Hosting|[Owncloud](https://owncloud.com/)|A personal cloud which runs on your own server||[Dropbox](https://www.dropbox.com/), [Google Drive](https://drive.google.com/)

File Hosting|[Spacedrive](https://spacedrive.com/)|Cross-platform file manager, powered by a virtual distributed filesystem (VDFS) written in Rust||[Dropbox](https://www.dropbox.com/), [Google Drive](https://drive.google.com/)|

Financial Service|[Lago](https://www.getlago.com/)|Open Source Billing API||[Stripe Billing](https://stripe.com/billing), [Chargebee](https://www.chargebee.com/)|

Financial Service|[OpenBB Terminal](https://github.com/openbb-finance/OpenBBTerminal)|Investment research for everyone||[Bloomberg](https://www.bloomberg.com/)

Form Building|[FormKit](https://formkit.com/)| A software to help build attractive forms||[Vueform](https://vueform.com/),[Typeform](https://www.typeform.com/)

Form Building|[Formbricks](https://formbricks.com/)| Build forms and receive & manage submission data in one platform ||[Typeform](https://www.typeform.com/), [Google Forms](https://forms.google.com), [React Hook Form](https://react-hook-form.com/)

Form Building|[Formio](https://form.io/)| A Form and Data Management Platform for Progressive Web Applications||[Vueform](https://vueform.com/),[Typeform](https://www.typeform.com/)

Forum Software|[Discourse](https://www.discourse.org/)|A platform for community discussion||[Tribe](https://tribe.so/), [Circle](https://circle.so/)

Forum Software|[Vanilla](https://vanillaforums.com/)|A platform for community discussion||[Tribe](https://tribe.so/), [Circle](https://circle.so/)|

Graph database|[ArangoDB](https://www.arangodb.com/)|Graph database and document store||[TigerGraph](https://www.tigergraph.com/), [Amazon Neptune](https://aws.amazon.com/neptune/)

Graph database|[Memgraph](https://memgraph.com/)|In-memory graph database||[TigerGraph](https://www.tigergraph.com/), [Amazon Neptune](https://aws.amazon.com/neptune/)

Graph database|[Neo4j](http://neo4j.com/)|Graph database platform||[TigerGraph](https://www.tigergraph.com/), [Amazon Neptune](https://aws.amazon.com/neptune/)

Graph database|[TerminusDB](https://terminusdb.com/)|Knowledge graph and document store||[TigerGraph](https://www.tigergraph.com/), [Amazon Neptune](https://aws.amazon.com/neptune/)

Helpdesk Solution|[Peppermint](https://peppermint.sh)|Ticket Management & Helpdesk system||[Zendesk](https://www.zendesk.co.uk/)

Helpdesk Solution|[UVDesk](https://www.uvdesk.com/en/)|Ticket Management & Helpdesk system||[Zendesk](https://www.zendesk.co.uk/)

Internal Tools|[AppSmith](https://www.appsmith.com/)|Low-code platform for internal tools||[Retool](https://retool.com/)

Internal Tools|[Budibase](https://budibase.com/)|Low-code platform for internal tools||[Retool](https://retool.com/)

Internal Tools|[ILLA Cloud](https://www.illacloud.com/)|Low-code platform for developers to build internal tools in minutes.||[Retool](https://retool.com/)

Internal Tools|[Lowdefy](https://lowdefy.com/)|YAML-based low-code platform for internal tools||[Retool](https://retool.com/)

Internal Tools|[Tooljet](https://tooljet.io/)|Low-code framework for internal tools||[Retool](https://retool.com/)

Internal Tools|[Windmill](https://windmill.dev/)|Company-wide apps and automations from minimal python or typescript scripts||[Retool](https://retool.com/)|

Localization (i18n)|[Tolgee](https://tolgee.io)|Developer & translator friendly web-based localization platform||[Lokalise](https://www.lokalise.com/), [Transifex](https://www.transifex.com/), [Crowdin](https://crowdin.com/), [POEditor](https://poeditor.com/)

Localization (i18n)|[inlang](https://www.inlang.com/)|Developer-first localization infrastructure built on git||[Lokalise](https://www.lokalise.com/), [Transifex](https://www.transifex.com/), [Crowdin](https://crowdin.com/), [POEditor](https://poeditor.com/)

Log Management|[Graylog](https://www.graylog.org/)|Log management platform||[Splunk](https://www.splunk.com/)

Log Management|[Quickwit](https://quickwit.io/)|Cloud-native log management & analytics||[Elastic Cloud](https://www.elastic.co/elastic-stack/)

ML Ops|[Cortex](https://www.cortex.dev/)|Production infrastructure for machine learning||[AWS SageMaker](https://aws.amazon.com/sagemaker/)

ML Ops|[Metarank](https://metarank.ai)|AutoML style personalized ranking||[AWS Personalize](https://aws.amazon.com/personalize/), [Tecton](https://www.tecton.ai/)|

ML Ops|[MindsDB](https://mindsdb.com/)|In-database machine learning platform||[BigQuery ML](https://cloud.google.com/bigquery-ml/docs)|

ML Ops|[Ploomber](https://ploomber.io/)|YAML-based pipeline builder for ML models||[AWS SageMaker](https://aws.amazon.com/sagemaker/)|

ML Ops|[Seldon](https://seldon.io/)|Deployment & monitoring for machine learning at scale||[AWS SageMaker](https://aws.amazon.com/sagemaker/), [Google Vertex AI](https://cloud.google.com/vertex-ai)|

ML Ops|[Zilliz](https://zilliz.com)'s [Towhee](https://towhee.io)|Platform for generating embedding vectors||[AWS SageMaker](https://aws.amazon.com/sagemaker)|

Marketing SaaS|[Dub](https://dub.sh/)|Open-source Bitly Alternative with built-in analytics||[Bitly](https://bitly.com/)

Messaging|[Element](https://element.io/)|Enterprise communication platform||[Slack](https://slack.com/)|

Messaging|[Mattermost](https://mattermost.com/)|Enterprise communication platform for developers||[Slack](https://slack.com/)|

Messaging|[Rocket.chat](https://rocket.chat/)|Enterprise communication platform||[Slack](https://slack.com/)|

Messaging|[Tinode](https://tinode.co/)|General instant messaging||[WhatsApp](https://www.whatsapp.com/), [Telegram](https://www.telegram.org/)|

Messaging|[Zulip](https://zulip.com/)|Team chat||[Slack](https://slack.com/)|

Metrics store|[Cube.js](https://cube.dev/)|Headless business intelligence suite||[Looker](https://looker.com/)

Metrics store|[Evidence](https://evidence.dev/)|Lightweight BI using SQL and markdown||[Looker](https://looker.com/)

Metrics store|[LightDash](https://www.lightdash.com/)|Low-code metrics layer, alternative to Looker||[Looker](https://looker.com/)

Metrics store|[MLCraft](http://mlcraft.io/)|Low-code metrics layer, alternative to Looker||[Looker](https://looker.com/)

Metrics store|[MetriQL](https://metriql.com/)|Headless business intelligence suite||[Looker](https://looker.com/)

No-code database|[Baserow](https://baserow.io/)|No-code database and Airtable alternative||[AirTable](https://www.airtable.com/)

No-code database|[NocoDB](https://www.nocodb.com/)|No-code database and Airtable alternative||[AirTable](https://www.airtable.com/)

No-code database|[Rowy](https://www.rowy.io/)|Extendable Airtable-like spreadsheet UI for databases||[AirTable](https://www.airtable.com/)|

No-code database|[Totum](https://totum.online/)|Business database for non-programmers||[AirTable](https://www.airtable.com/)|

Notetaking|[AppFlowy](https://www.appflowy.io/)|Open-source alternative to Notion||[Notion](https://www.notion.so/)

Notetaking|[Athens Research](https://www.athensresearch.org/)|Knowledge graph for research and notetaking||[Roam Research](https://roamresearch.com/)|

Notetaking|[Bangle.io](https://bangle.io/)|A rich note note taking web app that works on top of your locally saved Markdown files||[Notion](https://www.notion.so/)|

Notetaking|[Boost Note](https://boostnote.io/)|Collaborative workspace for developer teams||[Notion](https://www.notion.so/)|

Notetaking|[Dendron](https://www.dendron.so/)|Knowledge base plugin for VS Code||[Roam Research](https://roamresearch.com/)|

Notetaking|[Joplin](https://joplinapp.org/)|Secure, Cross-platform, Open-Source  Markdown Note Taking App||[Evernote](https://evernote.com/), [Onenote](hhttps://www.onenote.com/n), [Roam Research](https://roamresearch.com/)|

Notetaking|[Logseq](https://logseq.com/)|Knowledge base manager||[Roam Research](https://roamresearch.com/)|

Notetaking|[Notabase](https://notabase.io)|Powerful and easy-to-use note-taking app for networked thinking||[Notion](https://www.notion.so/), [Roam Research](https://roamresearch.com/)|

Notetaking|[Notesnook](https://notesnook.com/)|A fully open source & end-to-end encrypted note taking alternative to Evernote.||[Evernote](https://evernote.com/), [OneNote](https://www.onenote.com/n)|

Notetaking|[Outline](https://www.getoutline.com/)|Wiki and knowledge base||[Notion](https://notion.so)|

Notetaking|[Trilium.cc](https://trilium.cc/)|Personal knowledge base||[Evernote](https://evernote.com/), [Onenote](https://www.onenote.com/)

Observability and monitoring|[Chaos Genius](https://www.chaosgenius.io/)|ML powered analytics engine for outlier/anomaly detection and root cause analysis||[AWS Lookout](https://aws.amazon.com/lookout-for-metrics/), [Anodot](https://www.anodot.com/), [Sisu Data](https://sisudata.com/), [Outlier](https://outlier.ai/)

Observability and monitoring|[Grafana](https://grafana.com/)|Observability and data visualization platform||[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)

Observability and monitoring|[Netdata](https://www.netdata.cloud)|Application monitoring and observability platform||[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)

Observability and monitoring|[Sentry](https://sentry.io/)|Application monitoring with a focus on error reporting||[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)

Observability and monitoring|[Signoz](https://signoz.io/)|Application monitoring and observability platform||[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)

Observability and monitoring|[Uptrace](https://uptrace.dev/)|Application monitoring and observability platform||[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)

Observability and monitoring|[VictoriaMetrics](https://victoriametrics.com/)|Application monitoring and observability platform||[DataDog](https://www.datadoghq.com/), [NewRelic](https://newrelic.com/)

Password manager|[BitWarden](https://bitwarden.com/)|Password manager for teams and individuals||[1Password](https://1password.com/)

Password manager|[Padloc](https://padloc.app/)|Password manager for teams and individuals||[1Password](https://1password.com/)|

Password manager|[Passbolt](https://www.passbolt.com/)|Password manager for teams and individuals||[1Password](https://1password.com/)

Platform as a service|[Coolify](https://coolify.io/)|Self-hostable Heroku alternative||[Heroku](https://www.heroku.com/)|

Platform as a service|[Dokku](https://dokku.com/)|An open source PAAS alternative to Heroku||[Heroku](https://www.heroku.com/)|

Platform as a service|[Otomi](https://otomi.io)|Self-hosted PaaS for Kubernetes||[Heroku](https://www.heroku.com/)

Platform as a service|[Porter](https://porter.run/)|Kubernetes powered PaaS that runs in your own cloud||[Heroku](https://www.heroku.com/)

Platform as a service|[Pulumi](https://www.pulumi.com/)|Universal Infrastructure as Code||[Heroku](https://www.heroku.com/)|

Platform as a service|[Qovery](https://www.qovery.com/)|Kubernetes powered PaaS that runs in your own cloud||[Heroku](https://www.heroku.com/)

Platform as a service|[Space Cloud](https://space-cloud.io/)|Serverless cloud deployment platform||[Heroku](https://www.heroku.com/)|

Platform as a service|[dyrector.io](https://dyrector.io)|Simplify container delivery without vendor lock||[Heroku](https://www.heroku.com/)|

Product Analytics|[Objectiv](https://objectiv.io/)|Product analytics infrastructure||[Google Analytics](https://analytics.google.com/analytics/web/), [Amplitude](https://amplitude.com/), [Mixpanel](https://mixpanel.com/)|

Product Analytics|[PostHog](https://posthog.com/)|Product analytics platform||[Amplitude](https://amplitude.com/), [MixPanel](https://mixpanel.com/)

Project Management|[Focalboard](https://www.focalboard.com/)|Alternative to Trello, Notion, and Asana||[Trello](https://trello.com/), [Notion](https://www.notion.so/), [Asana](https://asana.com/)|

Project Management|[OpenProject](https://www.openproject.org/)|Project management software||[Asana](https://asana.com/), [Trello](https://trello.com/)|

Project Management|[Plane](https://plane.so/)|Alternative to Linear, JIRA, Trello and Height||[Linear](https://linear.app/), [JIRA](https://www.atlassian.com/software/jira), [Trello](https://trello.com/), [Height](https://height.app/)|

Project Management|[Taiga](https://www.taiga.io/)|Project management software||[Asana](https://asana.com/), [Trello](https://trello.com/), [Jira](https://www.atlassian.com/software/jira)|

Project Management|[Vikunja](https://vikunja.io/)|The to-do app to organize your next project.||[Todoist](https://todoist.com), [Trello](https://trello.com), [Asana](https://asana.com)|

Relational database|[PingCAP](https://en.pingcap.com/)|NewSQL database that supports HTAP workloads||[Amazon Aurora](https://aws.amazon.com/rds/aurora/), [Google Cloud Spanner](https://cloud.google.com/spanner/)|

Relational database|[Yugabyte](https://www.yugabyte.com/)|High-performance distributed SQL database||[Amazon Aurora](https://aws.amazon.com/rds/aurora/), [Google Cloud Spanner](https://cloud.google.com/spanner/)|

Remote Desktop Application|[RustDesk](https://rustdesk.com/)|Open source virtual / remote desktop infrastructure for everyone||[TeamViewer](https://teamviewer.com)|

Reverse ETL|[Castled](https://castled.io/)|Data synchronization framework focused on external apps||[Hightouch](https://www.hightouch.io/), [NewRelic](https://newrelic.com/)

Reverse ETL|[Grouparoo](https://www.grouparoo.com/)|Data synchronization framework||[Hightouch](https://www.hightouch.io/)

Robotic Process Automation (RPA)|[RoboCorp](https://robocorp.com/)|Set of tooling that allows to create automation packages||[UiPath](https://www.uipath.com/)

Scheduling|[Cal.com](https://cal.com/)|Scheduling infrastructure, alternative to Calendly||[Calendly](https://calendly.com/)

Session replay software|[OpenReplay](https://openreplay.com/)|Session replay stack for developers||[LogRocket](https://logrocket.com/), [FullStory](https://www.fullstory.com/)

Social Media|[Postiz](https://postiz.com)|Self-hosted social media scheduling tool||[Buffer](https://buffer.com/), [Hootsuite](https://hootsuite.com/)

Streaming|[Glimesh](https://glimesh.tv/)|Live streaming platform||[Twitch](https://www.twitch.tv/)

Timeseries database|[CrateDB](https://crate.io/)|Distributed SQL database for real-time analytics of time series data||[Kdb+](https://kx.com/developers/)

Timeseries database|[InfluxDB](https://www.influxdata.com/)|Database designed to process time series data||[Kdb+](https://kx.com/developers/)

Timeseries database|[QuestDB](https://questdb.io/)|Database designed to process time series data||[Kdb+](https://kx.com/developers/)

Timeseries database|[TDengine](https://tdengine.com/?en)|Database designed to process time series data||[Kdb+](https://kx.com/developers/)

Timeseries database|[TimescaleDB](https://www.timescale.com/)|Database designed to process time series data||[Kdb+](https://kx.com/developers/)

Tunnelling|[Tunnelmole](https://tunnelmole.com/)|Get a Public URL for your local development enviornment ||[Ngrok](https://ngrok.com)

VPN as a Service|[OmniEdge](https://omniedge.io/)|No-code P2P layer-2 mesh VPN for enterprise with zero config ||[OpenVPN](https://openvpn.net), [Ngrok](https://ngrok.com), [Oray](https://www.oray.com), [AWS VPC](https://aws.amazon.com/vpc/)|

Video Conferencing|[Jitsi](https://jitsi.org/meet)|Video conferences platform and SDK||[Zoom](https://zoom.us/)|

Video Conferencing|[LiveKit](https://livekit.io/)|SFU and SDKs for high-performance, scalable WebRTC||[Twilio](https://www.twilio.com/), [Agora](https://agora.io/)|

Video Conferencing|[OpenVidu](https://openvidu.io/)|Platform and SDKs to build on-premises WebRTC video conferences||[Twilio](https://www.twilio.com/)|

Webhooks|[Svix](https://www.svix.com/)|Webhooks as a Service||[Pusher](https://pusher.com/)|

Website analytics|[GoatCounter](https://www.goatcounter.com/)|Google Analytics alternative||[Google Analytics](https://analytics.google.com/)

Website analytics|[Matomo](https://matomo.org/)|Google Analytics alternative||[Google Analytics](https://analytics.google.com/)

Website analytics|[Plausible](https://plausible.io/)|Google Analytics alternative||[Google Analytics](https://analytics.google.com/)

Website analytics|[Swetrix](https://swetrix.com)|Google Analytics alternative||[Google Analytics](https://analytics.google.com/)|

Website analytics|[Umami](https://umami.is)|Google Analytics alternative||[Google Analytics](https://analytics.google.com/)

Workflow automation| [Activepieces](https://www.activepieces.com) | No-code business automation tool | |[Zapier](https://www.zapier.com/), [Tray](https://tray.io/)

Workflow automation|[N8N](https://n8n.io/)|Node-based workflow automation tool for developers||[Zapier](https://zapier.com/)

Workflow automation|[Pipedream](https://pipedream.com/)|Workflow automation and API integration platform||[Zapier](https://zapier.com/), [Integromat](https://www.integromat.com/)|

Workflow automation|[Temporal](https://temporal.io/)|Workflows as code platform||[Zapier](https://zapier.com/)



## Useful Links

- Great [article](https://rajko-rad.medium.com/the-rise-of-open-source-challengers-4a3d93932425) on open-source challengers by Rajko Radovanovic