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https://github.com/sh-dv/hat.sh

Encrypt and Decrypt files securely in your browser.
https://github.com/sh-dv/hat.sh

browser client-side cryptography decryption encryption encryption-decryption file-encryption in-browser javascript libsodium serverless xchacha20 xchacha20-poly1305

Last synced: about 1 month ago
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Encrypt and Decrypt files securely in your browser.

Host: GitHub
URL: https://github.com/sh-dv/hat.sh
Owner: sh-dv
License: mit
Created: 2019-05-20T00:51:02.000Z (over 5 years ago)
Default Branch: master
Last Pushed: 2024-02-27T02:59:36.000Z (7 months ago)
Last Synced: 2024-04-14T05:33:12.116Z (5 months ago)
Topics: browser, client-side, cryptography, decryption, encryption, encryption-decryption, file-encryption, in-browser, javascript, libsodium, serverless, xchacha20, xchacha20-poly1305
Language: JavaScript
Homepage: https://hat.sh
Size: 3.75 MB
Stars: 2,029
Watchers: 21
Forks: 232
Open Issues: 18
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Funding: .github/FUNDING.yml
- License: LICENSE
- Security: SECURITY.md

Awesome Lists containing this project

awesome - sh-dv/hat.sh - Encrypt and Decrypt files securely in your browser. (JavaScript)
awesome - sh-dv/hat.sh - Encrypt and Decrypt files securely in your browser. (JavaScript)
starred - sh-dv/hat.sh - Encrypt and Decrypt files securely in your browser. (JavaScript)
awesome-client-side - hat.sh - Encrypt and Decrypt files securely in your browser - [Try it!](https://hat.sh/) (Security / Video)

README

        


  

 



hat.sh




[![Status](https://img.shields.io/badge/status-active-success.svg)](#)

[![License: MIT](https://img.shields.io/badge/license-MIT-blue.svg)](#)

[![CodeQL](https://github.com/sh-dv/hat.sh/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/sh-dv/hat.sh/actions/workflows/codeql-analysis.yml)

[![Node.js CI](https://github.com/sh-dv/hat.sh/actions/workflows/node.js.yml/badge.svg?branch=master)](https://github.com/sh-dv/hat.sh/actions/workflows/node.js.yml)

[![Snyk](https://github.com/sh-dv/hat.sh/actions/workflows/snyk.yml/badge.svg)](https://github.com/sh-dv/hat.sh/actions/workflows/snyk.yml)



---

[Hat.sh](https://hat.sh) is a web app that provides secure local file encryption in the browser. It's fast, secure, and uses modern cryptographic algorithms with chunked AEAD stream encryption/decryption.

V2 of hat.sh introduced memory efficient in-browser large file chunked encryption using streams with libsodium.

## Usage

![how-to-use-gif](https://i.imgur.com/NbAZOgP.gif)




## Features

### Security

- XChaCha20-Poly1305 - for symmetric encryption.

- Argon2id - for password-based key derivation.

- X25519 - for key exchange.

The libsodium library is used for all cryptographic algorithms.

### Privacy

- The app runs locally in your browser.

- No data is ever collected or sent to anyone.

### Functionality

- Secure multiple file encryption/decryption with passwords or keys.

- Secure random password generation.

- Asymmetric key pair generation.

- Authenticated key exchange.

- Password strength estimation.




## Offline Use

The app can be easily self hosted, please follow the [installation](https://hat.sh/about/#installation) instructions.




## Browser Compatibility

We officially support the last two versions of every major browser. Specifically, we test on the following

- **Chrome** on Windows, macOS, and Linux , Android

- **Firefox** on Windows, macOS, and Linux

- **Safari** on iOS and macOS

- **Edge** on Windows

Safari and Mobile browsers are limited to single 1GB files, due to lack of support with server-worker fetch api.




## Official running instances of the app

| #   | URL                                       |

| --- | ----------------------------------------- |

| 1   | [hat.sh](https://hat.sh/)                 |

| 2   | [hat.now.sh](https://hat.now.sh/)         |

| 2   | [hat.vercel.app](https://hat.vercel.app/) |




## Donations

The project is maintained in my free time. Donations of any size are appreciated :






Crypto

  

    

      

      Coin

      Address

    

    

      

      Monero

      

        84zQq4Xt7sq8cmGryuvWsXFMDvBvHjWjnMQXZWQQRXjB1TgoZWS9zBdNcYL7CRbQBqcDdxr4RtcvCgApmQcU6SemVXd7RuG

      

    

    

      

      Bitcoin

      bc1qlfnq8nu2k84h3jth7a27khaq0p2l2gvtyl2dv6

    

    

      

      Ethereum

      0xF6F204B044CC73Fa90d7A7e4C5EC2947b83b917e

    

  

  


  

  Kofi

[https://ko-fi.com/shdvapps](https://ko-fi.com/shdvapps)

Open Collective

[https://opencollective.com/hatsh](https://opencollective.com/hatsh)









## Social

- [Reddit](https://reddit.com/r/hatsh)




## Acknowledgements

- Everyone who supported the project.

- [Samuel-lucas6](https://github.com/samuel-lucas6) from the [Kryptor](https://github.com/samuel-lucas6/Kryptor) project for being helpful and doing a lot of beta testing.

- [stophecom](https://github.com/stophecom) from the [Scrt.link](https://scrt.link/) project for translating to German.

- [bbouille](https://github.com/bbouille) for translating to French.

- [qaqland](https://github.com/qaqland) for translating to Chinese.

- [Ser-Bul](https://github.com/Ser-Bul) for translating to Russian.

- [matteotardito](https://github.com/matteotardito) for translating to Italian.

- [t0mzSK](https://github.com/t0mzSK) for translating to Slovak.

- [Xurdejl](https://github.com/Xurdejl) for translating to Spanish.

- [Franatrtur](https://github.com/Franatrtur) for translating to Czech.

- [darkao](https://github.com/darkao) for translating to Turkish.

- [Frank7sun](https://github.com/Frank7sun) for translating to Japanese.




## Credits

[libsodium.js](https://github.com/jedisct1/libsodium.js)

[next.js](https://nextjs.org/)

[material-ui](https://material-ui.com/)




## License

[Copyright (c) 2022 sh-dv](https://github.com/sh-dv/hat.sh/blob/master/LICENSE)