⚠️ Caution — Maintenance
Under maintenance
Threadlock is temporarily offline for maintenance. Please check back soon.
Sign in to your encrypted channel — compose, lock, and unlock messages with a key only you hold.
Sign in daily to build your streak.
Get support, updates, and chat with other users on our Discord.
A quick look at how locked-down your account is, and what you can do to make it stronger.
Type something private and get a one-time link. The moment someone opens it, it's revealed once and destroyed forever. The secret is encrypted in your browser — the key lives only in the link, never on our servers.
Earn points by unlocking achievements, raising your security score, and staying active. Top 50 shown.
Saved keys live on this device. Only save on a device you trust.
Saved encrypted messages, stored only on this device. Pin favorites with the star.
Lock a file or photo with AES-256. You get back a .vault file that only opens with the same key.
Drag a file in or click to choose. Large files take a moment.
Drag the locked file in and enter its key.
Lock files into your encrypted locker on this device. They stay encrypted and only open with your key (entered above).
Handy utilities, all running locally in your browser.
Turn any link or text into a scannable QR code — great for sharing your invite link.
Quick transforms — paste text, pick an action.
Test how strong a password is (checked locally, never sent anywhere).
Quick conversions for length, weight, and temperature.
See the current time in cities around the world.
Days between two dates, and your age.
Split a bill and figure out the tip fast.
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Email us or ask the community on Discord — we're happy to help.
Start a live chat with our support team. A staff member will respond as soon as they can.
Optional — add a picture so friends recognize you. You can remove it anytime.
Switch between dark and light, and pick an accent color.
Sign out automatically after a period of inactivity, so nobody can read over your shoulder.
On phones, use your browser's "Add to Home Screen" to install Threadlock like an app with its own icon.
Soft clicks and hovers as you move around the app.
Pick any color for buttons and highlights.
Comfortable or compact spacing.
Last sign-in: —
The last few times this account signed in, on this device.
Update your own passcode. It syncs so you can use it on any device.
One-time codes to reset your passcode if you forget it. Save them somewhere safe — they're shown only once.
Set a special passcode. If you're ever forced to unlock your account, enter this instead — it instantly clears your vault, notes, and drafts from this device and shows an empty sign-in. Your cloud account stays recoverable.
⚠️ Make it different from your real passcode and your decoy code. Only use it in a real emergency — it deletes local data immediately.
A personal duress code. Sign in with your username and this code to open a normal-looking but empty app — nothing real is shown.
Devices currently signed into your account. Sign out any you don't recognize.
Your recent encrypt/decrypt actions on this device.
Download a copy of your account data, or permanently delete your account.
How Threadlock works and handles your data.
Make it yours. The header and splash will use this name (or "Threadlock" if empty).
Auto-wipe erases all Threadlock data on this device after too many failed logins. Panic wipe does it now.
Automated plumbing checks (these really hit your cloud), plus a manual checklist — click Go to jump to a feature, test it, then mark it Pass or Fail.
Rename, reset passcodes, ban, promote, or remove operators on this device.
| Operator | Role | Status | Added |
|---|
Export this operator list as a file, then import it on another device to share the same accounts.
Choose how new operators join.
Users are given random usernames. This code lets someone choose a custom one.
Put Threadlock into lockdown. Operators see a maintenance screen and can only get in with the override code.
Locks the entire app, status page, and Discord bot. Nobody can sign in except with the emergency password you set. Use only in a real emergency.
Plan maintenance windows ahead. Lockdown turns on and off automatically, on every device.
Push an announcement banner to everyone signed in, on every device.
Block banned language. Each violation is a warning; reaching the limit triggers the action below.
Send warnings, bans, and new signups to a Discord channel via a webhook.
Manually set what your public status page shows. "Auto" hands control back to the 5-minute checker.
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Sync slash commands, post announcements, and check the bot — no terminal needed.
Open Bot Control ↗A private scratchpad and checklist, kept on this device. For anything truly sensitive, use the Hidden vault instead.