Threadlock is a suite of clean, no-nonsense tools built on real end-to-end encryption. Messaging, files, calls, and more — where not even we can read your data. Free, in your browser, no card needed.
End-to-end encrypted messages, files, and calls. Zero-knowledge, self-destructing links, and a private vault — your secrets, locked down.
Open Security → LiveFast, accurate local forecasts with no clutter. Current conditions, hourly, and a 7-day outlook anywhere in the world — built right into the app.
Open Weather →A calm, ad-light headline reader across world, tech, and business — the day's stories in one place. Landing here soon.
Coming soonBring your team onto Threadlock. Create a business account, share one join code, and manage your employees in a private, encrypted workspace.
Set up your team →Most apps say they protect you. Threadlock is built so we can't read your data even if we wanted to — because your keys never leave your device.
Messages, files, and calls are locked with AES-256 on your device before they ever leave it. We only ever store scrambled data.
Your passcode is never stored anywhere readable. Lose your keys and even we can't recover your content — that's the point.
Send messages and one-time links that delete themselves after they're read. Leave no trace when you don't want one.
A second passcode opens a convincing fake version of your account — so a "show me your phone" moment reveals nothing real.
Bring your business onto Threadlock with one join code and a private, encrypted workspace for your whole crew.
Runs right in your browser. No downloads, no ad networks, no data sold. Install it to your home screen if you want.
Yes. Create an account and use the tools for free. No credit card, no trial timer.
No. Threadlock runs right in your browser on any device. You can optionally add it to your home screen for an app-like experience.
No. Messages are encrypted on your device before they're sent, and your keys never leave your device. We only ever store scrambled data — we can't read it even if we wanted to.
You can set up one-time recovery codes in Settings. Because of our zero-knowledge design, without those codes even we can't recover your content — so save them somewhere safe.
Yes. Create a business account, share one join code with your team, and manage everyone in a private encrypted workspace. Business accounts are reviewed before approval.