# Aster Mail

> Secure cross-platform email with post-quantum encryption

- Canonical URL: https://www.fosshunter.com/tools/aster-mail
- JSON export: https://www.fosshunter.com/tools/aster-mail.json
- Website: https://github.com/Aster-Privacy/Aster-Mail
- Category: Email & Communication
- Open source: yes
- Self-hostable: yes
- Verified listing: no
- Featured: no
- Published at: 2026-05-07T02:44:19+00:00
- Catalog revision: `2692981087`

## Repository metrics (point-in-time)

- Repository: https://github.com/Aster-Privacy/Aster-Mail
- Stars: 94
- Forks: 8
- Open issues: 29
- License: AGPL-3.0
- Last push: 2026-11-03T21:47:21+00:00
- Metrics observed at (synced_at): 2026-11-04T05:20:50+00:00
- Archived: no

Tags: email, end to end encryption, Encryption, Privacy
Tech stacks: docker, javascript, nodejs, react, swift, Tailwind CSS, typescript

## Features
- Provides end to end encryption for email subjects and attachments. *(highlighted)*
- Utilizes post-quantum protection through ML-KEM-768 and X3DH protocol. *(highlighted)*
- Ensures zero-access privacy with no personal data required for signup. *(highlighted)*

## Description

Aster Mail is a free and open source email client featuring end to end encryption. It secures message subjects and attachments locally using zero access architecture and post quantum protection to ensure total user privacy.

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Source: [FOSSHunter — Aster Mail](https://www.fosshunter.com/tools/aster-mail) — cite `synced_at` and the catalog revision when quoting metrics.
Interpretation rules: https://www.fosshunter.com/llms-full.txt