KeePass .kdbx Viewer & Converter
A KeePass database viewer that runs entirely in your browser. Drop a .kdbx file (KDBX3 or KDBX4), enter the master password, and the database is decrypted locally on your device. Browse and search entries, reveal individual passwords, and export the vault to CSV or Bitwarden JSON when migrating to another manager. Works offline once loaded — useful when you have your vault on a phone but no KeePass app installed.
How to use
Drag your KeePass database file onto the drop zone or click to browse.
Type the master password you use in KeePass. If your vault also uses a key file, attach it.
The decrypted entries appear in a table. Use the search box to find specific entries; click rows to reveal passwords.
Choose KeePass CSV or Bitwarden JSON to migrate to another manager.
Open your KeePass vault in any browser — no installation, no signup, no waiting for a desktop client
| Title | Username | Password | URL | Group | TOTP |
|---|
🔒 How decryption works
- Your .kdbx file is decrypted inside your browser tab. The file bytes and your master password stay on your device.
- Argon2 / AES-KDF (the same key-derivation functions KeePass desktop uses) runs on your CPU to turn the password into the encryption key.
- Decrypted entries live only in tab memory. Close the tab and they are gone — no cache, no history, no localStorage copy.
- For an air-gap, load this page once with the network on, then disconnect before opening your vault — the viewer keeps working offline from the service-worker cache.
Features
FAQ
Does my .kdbx file or master password leave my device?
No. The file is read locally, decryption runs on your CPU, and the master password stays in tab memory only. Once you close the tab, both are gone — no copy on our servers, no cache, no localStorage.
Does this support KDBX4?
Yes. Both KDBX3 (KeePass 2.0+) and KDBX4 (KeePass 2.35+, with Argon2 KDF and ChaCha20 stream) are supported.
My password is correct but it fails. Why?
Most commonly: a key file is required and not attached. Check whether your KeePass setup uses a key file alongside the master password. Less commonly, a corrupted file.
Can I edit or save changes?
Not in this version — it is a read-only viewer for migration and inspection. Edit your vault in the KeePass app and re-import to migrate.
Can I open KeePass 1.x databases?
No. The legacy KDB format (KeePass 1.x) is not supported. KeePass 1.x can export to KeePass 2.x format from the desktop app.
How safe is it to enter my master password here?
The master password lives only in your tab's memory and is discarded when you close the tab. For an extra air-gap, load the page once with network on, then disconnect — the viewer keeps working offline from the service-worker cache, so the password cannot leave the device even in theory.
We can — and it's free! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.
