{"id":38507540,"url":"https://github.com/kajitiluna/erd-designer","last_synced_at":"2026-05-30T11:01:14.711Z","repository":{"id":285079391,"uuid":"910340706","full_name":"kajitiluna/erd-designer","owner":"kajitiluna","description":"Entity Relationship Diagram Designer (ERD Designer) is a web-based tool for designing entity relationship diagrams.","archived":false,"fork":false,"pushed_at":"2026-05-21T14:40:36.000Z","size":6181,"stargazers_count":11,"open_issues_count":3,"forks_count":3,"subscribers_count":3,"default_branch":"main","last_synced_at":"2026-05-21T23:22:59.724Z","etag":null,"topics":["database-design","entity-relationship-diagram","erd","erd-design"],"latest_commit_sha":null,"homepage":"https://kajitiluna.github.io/erd-designer","language":"TypeScript","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/kajitiluna.png","metadata":{"files":{"readme":"README.md","changelog":"CHANGELOG.md","contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2024-12-31T02:58:31.000Z","updated_at":"2026-05-21T14:48:40.000Z","dependencies_parsed_at":"2025-06-11T16:48:16.841Z","dependency_job_id":"285b576f-6ecf-4684-91b5-1044d0d60e98","html_url":"https://github.com/kajitiluna/erd-designer","commit_stats":null,"previous_names":["kajitiluna/erd-designer"],"tags_count":142,"template":false,"template_full_name":null,"purl":"pkg:github/kajitiluna/erd-designer","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kajitiluna%2Ferd-designer","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kajitiluna%2Ferd-designer/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kajitiluna%2Ferd-designer/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kajitiluna%2Ferd-designer/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/kajitiluna","download_url":"https://codeload.github.com/kajitiluna/erd-designer/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/kajitiluna%2Ferd-designer/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":33689564,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-26T15:22:16.424Z","status":"online","status_checked_at":"2026-05-30T02:00:06.278Z","response_time":92,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["database-design","entity-relationship-diagram","erd","erd-design"],"created_at":"2026-01-17T06:16:54.885Z","updated_at":"2026-05-30T11:01:14.685Z","avatar_url":"https://github.com/kajitiluna.png","language":"TypeScript","funding_links":[],"categories":[],"sub_categories":[],"readme":"\u003cimg src=\"src/logo.svg\" alt=\"logo\" width=\"200\" style=\"display: block; margin: 20 auto;\"\u003e\n\n# Entity Relationship Diagram Designer\n\nEntity Relationship Diagram Designer (ERD Designer) is a web-based tool for designing entity relationship diagrams.\nThis tool is inspired by [ERMaster](https://ermaster.sourceforge.net/index.html).\n\n## Features\n\n- ERD Designer allows you to design database tables and relationships via a graphical interface.\n- ERD Designer supports exporting PNG images and generating DDL files.\n- ERD Designer supports reusing and sharing column models for table design.\n\n## Screenshots\n\n| ![Canvas](images/01_canvas.png) |\n|:--:|\n| Main canvas view with tables and relationships |\n\n| ![Edit Column](images/02_edit-column.png) | ![Add relation](images/03_add-relation.gif) |\n|:--:|:--:|\n| Editing table columns using shared models | Creating relationships between tables |\n\n| ![Select color](images/04_color.png) | ![Perspective](images/05_canvas-perspective.gif) |\n|:--:|:--:|\n| Customizing table and memo colors | Organizing tables by perspectives |\n\n\n## Online tool\n\nERD Designer is available as an online tool at: [kajitiluna.github.io/erd-designer](https://kajitiluna.github.io/erd-designer)\n\nThis online tool stores your data locally on your machine instead of online.\n\n## Google Drive App\n\nERD Designer is also available as a Google Drive App.  \nBy installing the ERD Designer app from the [Google Workspace Marketplace](https://workspace.google.com/marketplace/app/erd_designer/952307856491) into your Google Workspace, you can save and edit your work on Google Drive using ERD Designer.\n\n### Important Notes for the Google Drive App\n\n- If a file on Google Drive is shared, it can be viewed simultaneously in ERD Designer; however, simultaneous editing is not supported. Due to optimistic concurrency control, the content saved first will be preserved.\n- While the online tool allowed the Specification Document to be downloaded as an Excel file, the Google Drive App now exports it as a spreadsheet.\n\n## VSCode Extension\n\nERD Designer is also available as a VSCode extension.  \nBy installing the ERD Designer extension from the [Visual Studio Marketplace](https://marketplace.visualstudio.com/items?itemName=kajitiluna.erd-designer) into your VSCode, you can save and edit `.erd` files in your local file system using ERD Designer.\n\n### Important Notes for the VSCode Extension\n\n- The MCP (Model Context Protocol) Server feature is currently experimental and under active development. Please be aware that functionality and behavior may change in future releases.\n\n## Manual\n\nPlease refer to the [Wiki](https://github.com/kajitiluna/erd-designer/wiki) for detailed documentation.\n\n## Sample file\n\nYou can use the sample ERD file as a reference for your designs:\n- [sample-ec_mysql.erd](https://github.com/kajitiluna/erd-designer/raw/main/samples/sample-ec_mysql.erd) (Right-click and select \"Save link as...\")\n\n**How to use:**\n- **Online Tool**: Download the file and import it into ERD Designer\n- **Google Drive App / VSCode Extension**: Open the downloaded file directly\n\n## Installation and Usage\n\n### Local Installation\n\n1. Clone the repository:\n\n   ```sh\n   git clone https://github.com/kajitiluna/erd-designer.git\n   ```\n\n1. Install dependencies:\n\n   ```sh\n   npm ci\n   ```\n\n1. Start the development server:\n\n   ```sh\n   npm run dev\n   ```\n\n### Usage\n\nAfter starting the development server, open your browser and navigate to http://localhost:5173 to use the application.\n\n## Development\n\n- Node.js Requirement: Ensure you have Node.js (version 22.12 or higher) installed.\n- Build the Project:\n  ```sh\n  npm run build\n  ```\n- Run Tests:\n  ```sh\n  npm run testrun\n  ```\n\n## Contributing\n\nThe contributing guidelines are currently under preparation.\nPlease check back later for detailed instructions.\n\n## License\n\nERD Designer is distributed under the Apache License 2.0.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkajitiluna%2Ferd-designer","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fkajitiluna%2Ferd-designer","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fkajitiluna%2Ferd-designer/lists"}