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Drop it in
Paste a note or attach a file — up to 512 MB. Set a passcode, and it's sealed on your device before it ever leaves.
Hand over your code once. After that, the passcode you tell someone doesn’t just unlock a message — it picks which one opens. They knock from any browser: no account, no app, nothing to install.
Paste it, or type the two words — a space becomes the dash.
Free · nothing for them to install · works on any phone.
Hand someone your short code a single time. From then on, everything you send is just a passcode away.
Paste a note or attach a file — up to 512 MB. Set a passcode, and it's sealed on your device before it ever leaves.
Give someone your short code once — say it or text it. The passcode, which you send separately, is what picks and opens each message.
Any browser, no account, nothing installed. It's fetched from your Drive and decrypted right in front of them — an image even previews inline.
One permanent address, many messages — each behind its own passcode.
They open it at a plain web page — no sign-in, no install. Ideal for getting a file onto a shared or locked-down work computer without logging your accounts into it.
A batch of links, a document, an image — up to 512 MB. Images preview right on the page; everything else is one tap to download.
Sealed on your device before it touches Drive. Google only ever sees ciphertext, and we hold no key that could decrypt it.
The passcode both picks the message and unlocks it. Reuse one as a standing drop for a regular contact, or a fresh one for a one-off.
Give a message an hour, a week, or forever — and remove it whenever you like. Once it's gone, the passcode opens nothing.
Send from your phone or a laptop; they receive on whatever they've got. No app store, no download, nothing to keep.
There is no KTRD account, and no server of ours ever receives what you send. What you send is encrypted on your device and parked in your Google Drive; the passcode that opens it is never stored, and never reaches us. We couldn't hand your messages over if we tried — we don't have them.
How the encryption worksNothing. They open a plain web page in any browser — no account, no sign-in, no install — type the passcode you gave them, and the message decrypts right there. Perfect for a shared or work computer you'd rather not log your accounts into.
Two things: it picks which message the reader gets, and it decrypts it. A wrong passcode and an empty mailbox look identical, on purpose — so no one holding your code can probe for what's inside. Send the passcode by a different route than your code, and keep it hard to guess.
Every message is sealed on your device with a key derived from your passcode, before it's parked in your Google Drive. Google — and we — only ever see ciphertext. Files ride in their own encrypted object; only a tiny pointer sits in the mailbox.
Yes. Give any message an hour, a day, a week, a month, or no expiry at all — and remove it whenever you like. Once it's gone or expired, the passcode opens nothing.
Nothing. It rides on the Google Drive storage you already have, so there's no bill to pass on to you.
Yes — that's where KTRD started. The extension saves, encrypts and syncs your open tabs across Chrome, Edge and Brave. See KTRD for tabs →
Drop in a note or a file, set a passcode, and hand over your code. They open it in seconds — no account, nothing installed.
Free to start. No account to create, no tracking, ever.