How it works
Private by design, not by promise.
What you share is locked on your device before it goes anywhere. We only ever hold a scrambled copy that we can’t open, and we delete it as soon as it’s read.
Sending something private
- 1
You write it
Type a password or a note, or choose a file. Pick how long it lasts and how many times it can be opened.
- 2
It’s locked on your device
Your browser scrambles it with AES-256 encryption before anything is sent. Only the scrambled copy reaches us.
- 3
They open it, then it’s gone
They press and hold to open it. Their browser unlocks it, and we delete the scrambled copy right away.
The key never leaves your hands
Every link has two parts. Only the first part ever reaches us.
Asking someone for something
Need a password, an account number, or a document from someone? Ask with a link.
- 1
You ask
Say what you need. You get a link to send them, and a private inbox link to keep for yourself.
- 2
They answer
They type it or choose a file. It’s locked on their device so that only your inbox link can open it.
- 3
You open it once
Open your inbox link and hold to reveal. It’s erased from our servers as soon as you do.
Extra protection, when you want it
Passcode
Add a passcode and send it a different way. Three wrong tries and the message destroys itself.
Only for this email
Lock a link to one person’s email. To open it, they enter a code we email them. Send the link by text or chat, so it and the code travel separately.
Time and opens
Links expire after 10 minutes, 1 hour, 1 day, or 7 days. They open once, or up to five times for a small group.
Vanish after reading
The message disappears from their screen soon after they open it, anywhere from 10 seconds to 5 minutes.
Reply privately
After reading, they can send an encrypted reply back in one tap. Only your tracking link can open it, once.
Tracking link
See when your link is opened, and destroy it anytime before then. You can also get an email. In My links, one hold destroys every link you still have open.
Hold to open
Chat apps preview links automatically. Holding to open means a preview can never use up your message.
Screen privacy
Revealed messages blur when the person switches apps, leaves the tab, or takes a screenshot on a computer.
Scam warnings
If a message contains a web link or words often used in scams, the reader gets a gentle “Be careful” note.
Files that are what they say
When a file is opened, the reader’s device checks it really is a photo, PDF, or document before showing or saving it.
Good habits
- Send the passcode another way. If the link goes by email, send the passcode by text, or say it on a call.
- Choose the shortest time that works. An hour is plenty if they’re waiting for it.
- Don’t post links in public places. Anyone with the link can open it, once.
- “Already opened” is an alarm. If they see it but didn’t open it, someone else did. Change that password.
Questions
Can you read what I send?
No. It’s locked on your device, and the key is in the part of the link we never receive. We couldn’t read it if we wanted to, and neither could anyone who broke into our servers.
Is it safe from future quantum computers?
Yes. Messages and files are locked with 256-bit keys, which quantum computers aren’t expected to break. Requests and private replies use two locks at once: a classic one and ML-KEM, the quantum-resistant standard the US government published in 2024. Someone would have to break both, so a reply copied today stays safe even after quantum computers arrive. In modern browsers, Cloudflare protects the connection to our site with quantum-resistant encryption too.
What if someone else gets the link?
Whoever opens it first gets it, and the link stops working for everyone else. The person you meant it for will see that it was already opened, so you’ll know. A passcode sent separately, or locking it to their email, adds another layer.
What happens if nobody opens it?
It’s deleted automatically when it expires, after 10 minutes, 1 hour, 1 day, or 7 days, whichever you chose.
Do I need an account?
No. There are no accounts, no passwords to remember, and no cookies. Links you make can be saved on your device in My links, if you like.
Is it free?
Yes, Safe With Us is free to use.
What do you keep, and for how long?
Very little, and not for long. Our Transparency page lists exactly what we can and can’t see, and when each thing is deleted.
Ready to share something?
It takes a few seconds, and it’s gone once it’s read.
Create a link