The Undo Button for Your Entire Computer
Recover an earlier draft of a document, bring back a deleted video, or restore your data after a ransomware attack. Obsidian works silently in the background to let you go back in time on any and every file.
Encrypted · Lightweight · Works offline
Go back in time on any file
Every file on your computer gets the undo button it deserves—not just the ones in your text editor.
Undo any change
Accidentally deleted a file? Saved over an important draft? Obsidian lets you go back in time on any file—from seconds to months ago.
Continuous versioning
Unlike Time Machine's 1-hour intervals, Obsidian captures changes every few seconds. A lot can happen in an hour—you won't miss a beat.
Silent & lightweight
Works invisibly in the background without hogging CPU or RAM. You'll forget it's even running—until you need to undo something.
Ransomware protection
Recover your entire system after a ransomware attack. Your encrypted backups stay safe—we can't even see them.
How it works
Obsidian silently captures every file change, encrypts it, and stores it—so you can undo anything, anytime.
Your files are yours alone
We can't see your files
Everything is encrypted on your machine before it goes anywhere. Zero-knowledge architecture means we don't have the keys—you do.
Cloud storage is encrypted too
Even if we offer hosted storage in the future, your data stays encrypted. We'd only see encrypted blobs—never your actual content.
You control the keys
Your master key is derived from your password using Argon2id. Only you can decrypt your backups.
The short version?
Your creative work is private. We built this so even we can't access your files—by design.
Time travel for your files
Drag the timeline to any moment. Restore that deleted video, recover an earlier draft, or undo that accidental save.
Point-in-time restore
Never lose work again
Join the waitlist to get the undo button your entire computer deserves. Be notified when Obsidian launches.
No spam. We'll only email you when we're ready to launch.