Encrypted file courier · Windows · macOS · Linux · iOS

Drop a file on a friend.
It lands on their device — encrypted, end‑to‑end.

No share links. No logins. No “it’s in the cloud somewhere.” WRMHLE takes email’s most reliable idea — store‑and‑forward — and makes it instant and private. It reaches them even when they’re offline, behind a firewall, or on the other side of the world.

Get early access See how it works

Zero-knowledge relay · Metadata-minimised · TweetNaCl crypto

How it works

A blind courier between two devices.

Your file is sealed before it ever leaves your device, carried by a relay that can’t read it, and opened only by the person you sent it to. Three moves, and nothing in the middle can see a thing.

01 — SEAL

Encrypted on your device

The file is locked with a fresh one-time key and sealed to your recipient’s public key — and signed with yours, so they know it’s really from you. The key never leaves your device.

02 — RELAY

Held by a blind mailbox

The sealed file passes through a relay that only ever sees ciphertext and a name to route it to. If your recipient is offline, it simply waits there — encrypted — until they’re back.

03 — DELIVER

Opened only by them

The moment they reconnect, it lands on their device and decrypts locally. The relay deletes it and forgets it ever existed. No trace, no leftovers.

Why it actually works

Every other “quick send” eventually fails you.

AirDrop, LAN transfers, WebRTC — they all rely on a live peer-to-peer link, which dies on NAT, firewalls, VPNs, or a sleeping laptop. WRMHLE copies email’s store-and-forward model instead: both devices only ever dial out, so there’s no connection to fail. Delivery is email-grade — the privacy is far better than email’s.

Live P2P

WRMHLE

Recipient offline

Fails

Waits & delivers

Behind NAT / firewall

Often fails

Always works

Server can read the file

No — ciphertext only

Reliability

Fragile

Email-grade

Security — the foundation, not a feature

Built so that trusting us is optional.

WRMHLE is engineered so the relay — and everyone running it — is blind by design. The security isn’t a setting you switch on. It’s the only way the product works.

End-to-end

Sealed on your device

Every file gets its own random key (XSalsa20-Poly1305), wrapped to your recipient’s public key and signed by yours. Only they can open it — and they can prove it came from you.

Zero-knowledge relay

A mailbox that can’t read

The relay is a dumb, encrypted mailbox. It sees ciphertext and a username to route to — never your files, never your keys. Curious or compromised, it has nothing to give up.

Metadata-minimised

Even the size is hidden

Blobs are size-padded so the relay can’t tell a memo from a movie, filenames ride inside the sealed payload, and the relay keeps no per-request logs — no IPs, no history.

Tamper-evident

MITM-proof by number

Any altered byte is rejected on decryption. Compare a 40-digit safety number with your contact and you’ve proven, mathematically, that nobody swapped a key in between.

Yours at rest

Face ID & passphrase

Lock your identity with a passphrase (PBKDF2, 250k rounds) or unlock with Face ID on iPhone. Your private keys are generated on-device and never leave it.

Open primitives

No home-made crypto

Built on TweetNaCl — audited X25519 key exchange and XSalsa20-Poly1305. No bespoke curves, no clever shortcuts. There’s nothing to trust but the maths.

One courier, every device

Native on your phone. Always-on at your desk.

Add a single account to up to eight devices and every file reaches all of them. Send from wherever you are — the courier is already there.

iPhone — tap a contact to send, share straight from any app, unlock with Face ID.
Desktop — a quiet menu-bar courier for Windows, macOS & Linux that’s ready the moment a file arrives.
Multi-file — drop a whole batch; it travels as one tidy, encrypted transfer.

Windows macOS Linux iOS

WRMHLE

Home

Files

Contacts

Recents

Settings

Mike

Priya

Sarah

Studio

Online · you · Connected

WRMHLE running on iPhone — the radial home screen with contacts orbiting the wormhole

Pricing

Start free. Scale when you need the room.

The encryption is identical on every tier — you never pay for security. Paid plans simply lift the limits and, at the top, give your business a relay of its own.

Free

£0

forever

For everyday sending between friends and family.

50 MB per transfer
Files wait up to 7 days
Up to 8 devices, one account
Full end-to-end encryption

Get early access

Send it. It gets there.

Be first to the private file courier that just works. Leave your email and we’ll let you know the moment it opens up.

Drop a file on a friend.It lands on their device — encrypted, end‑to‑end.