AChat — Anonymous transient chat
AChat is a no-signup, anonymous, transient chat application. You pick or
generate an 8–20 character chat ID, share the URL with the person you want
to talk to, and the conversation auto-deletes after ten days. An optional
password adds in-browser end-to-end encryption (PBKDF2 + AES-GCM); the key
never leaves your device.
What AChat is
- No accounts, no profiles, no email — just a chat ID.
- Optional client-side E2E encryption via password (messages and file
metadata are encrypted in your browser before they reach Firestore).
- File uploads up to 100 MB via FilesHub (multi-file queue,
inline previews, retry, cancel).
- Auto-delete in 10 days on every collection — chats, messages, files,
reactions, presence — via Firestore TTL.
- Free to use. Runs on Firebase's free tier (Spark plan) plus FilesHub.
What AChat is not
- Not a Signal replacement — file bytes on FilesHub are not encrypted
at rest, only the metadata is on passworded chats.
- Not an archive — by design, every message and every file is gone
after 10 days.
- Not anonymous against legal process — Firebase logs your IP and
user-agent per Google's policy.
- Not a group platform — no admins, no moderation, no read receipts.
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