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Read IDs, encrypt files, and decode tokens in your browser

Read a passport or ID card's machine-readable zone and verify its check digits with the MRZ Reader, or lock a file with a passphrase in File Encryption. Secure Note Sharing turns a note into an encrypted link, Identity Inspector decodes JWTs, SAML, and certificates, and EVTX Explorer opens Windows event logs with SIGMA detections.

Your files never leave your device.
How it works

All Security & Privacy

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About these security tools

Tools for data that should stay on your device. Encrypt a file with AES-256 and a passphrase, share the encrypted file anywhere, and decrypt it only with that passphrase. Turn a note into an encrypted link with an optional password and expiry: the note travels inside the link itself, so no server stores it. Paste a certificate, JWT, SAML response, or OIDC discovery document into Identity Inspector to check validity, expiry, and claims without handing a token full of personal data to a vendor. Read a passport or ID card MRZ and validate its check digits, or triage a Windows .evtx event log with SIGMA detections and logon-session reconstruction. Files, tokens, and logs are processed in your browser and never sent to a server.

Frequently Asked Questions

What does the file encryption tool actually do?

AES-256 client-side encryption. Pick a file, set a password, get an encrypted .enc file you can share anywhere. Decryption uses the same password — without it, the ciphertext is unreadable. Encryption and decryption both run entirely in your browser; no file or password ever leaves your device.

How do encrypted note links work?

Compose a note and the tool encrypts it with AES-256-GCM in your browser, then packs the encrypted note into the part of the link after the #, which browsers never send to a server. Add a password and an expiry if you want them. No server stores the note, so nothing can delete it: anyone with the link can open it until it expires, and the browser that opens it marks it as read.