🕵️ Anonymous by default
No sign-up, no email, no phone number. Your identity is a key that lives only on your device. The default name is just “Anon”.
Like a night deposit box: every message is a sealed envelope, dropped for one person only, opened by no one in between. Anonymous, end-to-end encrypted 1:1 chat over Tor. No accounts. No phone number. No server-side keys. No logs.
Free and open. Peer-to-peer over Tor. Android · Windows · Linux.
No sign-up, no email, no phone number. Your identity is a key that lives only on your device. The default name is just “Anon”.
Every message uses the Signal Double Ratchet. Only you and the person you’re talking to can read it — with forward secrecy on every message.
Messages travel directly between devices through the Tor network. There’s no central server watching who talks to whom.
We can’t read your messages because we never hold your keys — and we keep no logs. There’s nothing to hand over, because there’s nothing to keep.
By default your history stays on your device, encrypted at rest. Optionally store it on the server for 24 hours to save space — and both of you are clearly warned while that’s on.
Pair by QR code or a short code with a shared secret. A stranger can’t message you until you approve the request.
If your contact is offline, the encrypted message waits on an untrusted relay for up to 24 hours — it sees only ciphertext, never content. You see when it’s queued and when it’s delivered.
Add extra relays that also hold your mailbox. Messages are copied to all of them, so one relay being down or blocked doesn’t drop your mail — and every relay still sees only ciphertext. Run your own if you like; nothing about it is trusted.
Attachments travel end-to-end encrypted like every message, and are stored sealed on your device. Images are compressed on-device so they move fast over Tor.
Optional encrypted backups protected by a recovery password shown to you exactly once — never stored, never sent anywhere. Lose the password, lose the backup: that’s the point. Restore keeps your identity and chats.
Choose Lite (just your identity and contacts, no messages) or Full (with history and media) — save it to a file, or opt in to an encrypted 24-hour copy on the server that only your password can open. You can even back up a single chat and merge it back later.
Set a per-chat timer — an hour, a day, a week — and older messages delete themselves on both devices. It’s a shared setting, so changing it keeps both sides in sync.
Change your mind? Edit a message or delete it for everyone. If it hasn’t reached them yet it’s pulled back before it ever arrives; if it has, it turns into a “deleted” marker on both sides.
When the other person keeps a backup of your chat, or turns on 24-hour server storage, you see a clear, persistent warning. Privacy you can’t see isn’t privacy — so the app tells you where your messages live.
New-message alerts are generated on your device and say only “New message” — no content, no sender, and nothing goes through a push provider tied to your identity. On Android you can opt in to keep receiving them in the background over Tor — still with no push provider.
Delete a chat and the other person is told; log out and your identity, keys, messages, and decrypted files are wiped from the device. Nothing lingers on a server, because nothing was there.
Android, Windows and Linux from one codebase — with the same Rust security core doing the cryptography on every platform.
Most “private” messengers still tie you to a phone number, keep metadata on their servers, or hold keys that can be compelled. Night Drop is designed so there is simply nothing to collect.
Night Drop is free. If it’s useful to you, a donation keeps it alive. Monero and Zcash keep a donation fully private. Bitcoin goes to a silent-payment address, so donations can’t be linked to each other, though amounts stay public. No accounts, no tracking.
Default. Strong sender/receiver/amount privacy.
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Shielded-only address. Send from a shielded wallet (e.g. Zodl) so the payment stays private.
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Silent payment address: each donation lands at a fresh address, so donations can’t be linked to each other. Amounts and the sending wallet stay public, as with any Bitcoin payment. Needs a wallet that can send to sp1 addresses (e.g. Cake, Sparrow, BlueWallet, Wasabi).
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One app, every device.
The Android button opens the list of builds so you can pick one. The universal build runs
on any phone; the per-processor builds are roughly a third the size, and
arm64-v8a suits almost every phone made since 2015. If you install a
per-processor build you can't switch back to the universal one without uninstalling
first, because Android reads it as a downgrade.
The Windows installer (Windows 10 or later, 64-bit) needs no administrator rights. It is not
code-signed yet, so Windows may warn about an unknown publisher; check it against the signed
SHA256SUMS first (see SECURITY.md).