# SendSelf

> SendSelf is an open-source, end-to-end encrypted web app for privately sending text and files between a person's own devices.

The service requires no account or email address. Content is encrypted on the sending device before upload; the server relays ciphertext and cannot decrypt message text, files, or encrypted file metadata. It can still observe protocol and network metadata, and the project has not been independently security-audited.

## Product guide

- [SendSelf overview](https://sendself.4oli.com/index.md): Concise, LLM-friendly product facts, security boundaries, retention, and suitable use cases.
- [How SendSelf works](https://sendself.4oli.com/how-it-works/): Create a private space, pair devices, and share text and files.
- [Security model](https://sendself.4oli.com/security/): Plain-language encryption, key, pairing, and threat-boundary summary.
- [Privacy overview](https://sendself.4oli.com/privacy/): What stays local, what the server receives, and temporary retention.
- [Installation guide](https://sendself.4oli.com/install/): Install the progressive web app on supported devices.

## Technical references

- [Technical security documentation](https://raw.githubusercontent.com/martinezharo/sendself/main/docs/security.md): Detailed algorithms, trust model, metadata exposure, and known limitations.
- [Project README](https://raw.githubusercontent.com/martinezharo/sendself/main/README.md): Current capabilities, project status, setup, and documentation map.
- [Source code](https://github.com/martinezharo/sendself): Canonical source repository.
- [Sitemap](https://sendself.4oli.com/sitemap.xml): Public product pages.

## Optional

- [License](https://raw.githubusercontent.com/martinezharo/sendself/main/LICENSE): MIT License terms for the source code.