# Hat.sh for YunoHost [](https://dash.yunohost.org/appci/app/hat)   [](https://install-app.yunohost.org/?app=hat) *[Lire ce readme en français.](./README_fr.md)* > *This package allows you to install Hat.sh quickly and simply on a YunoHost server. If you don't have YunoHost, please consult [the guide](https://yunohost.org/#/install) to learn how to install it.* ## Overview 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. ### Features #### Security - XChaCha20-Poly1305 - for symmetric encryption. - Argon2id - for password-based key derivation. - X25519 - for key exchange. #### 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. **Shipped version:** 2.3.6~ynh1 **Demo:** https://hat.sh ## Screenshots  ## Disclaimers / important information Hat.sh requires a dedicated domain or subdomain. ## Documentation and resources * Official app website: * Official user documentation: * Official admin documentation: * Upstream app code repository: * YunoHost documentation for this app: * Report a bug: ## Developer info Please send your pull request to the [testing branch](https://github.com/YunoHost-Apps/hat_ynh/tree/testing). To try the testing branch, please proceed like that. ``` bash sudo yunohost app install https://github.com/YunoHost-Apps/hat_ynh/tree/testing --debug or sudo yunohost app upgrade hat -u https://github.com/YunoHost-Apps/hat_ynh/tree/testing --debug ``` **More info regarding app packaging:**