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Privacy and security tools

Privacy & Security Tools — Ten free browser tools for privacy and security tasks — generate passwords, verify checksums and more.

Tabaix / Privacy and security tools

Generate or inspect data for specific privacy tasks. A password, checksum or QR code still needs informed handling.

Read: Passwords, checksums and QR codes: practical checks before sharing

Random password generatorGenerate a random password using the browser cryptographic random-number source.Password pattern reviewReview length and common patterns without sending your password to a breach-checking service.Legacy MD5 checksumCalculate a legacy MD5 checksum when another system requires that exact format.SHA-256 text hashCalculate a SHA-256 digest of the UTF-8 bytes of your text.SHA-256 file checksumCalculate a SHA-256 file digest that you can compare with a trusted reference.AES-GCM text encrypt/decryptEncrypt a note with a password and decrypt authenticated output from the same format.QR code generatorCreate a QR image from your text or URL without opening the destination.Read QR from imageRead the text inside one QR code image and inspect the result before using it.Code 39 barcodeEncode supported uppercase characters in a printable Code 39 barcode.Re-encode image without EXIFExport image pixels into a new PNG without copying the source EXIF metadata.

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When these tools are useful

  • Generating a strong, unique password for a new account.
  • Checking that a downloaded file matches its published checksum.
  • Creating a QR code for a link you want to share in print.
  • Inspecting what a piece of data does and does not prove.

A generated password only protects you if it is unique to that account and stored somewhere safe — a password manager is the practical answer for most people. A checksum match proves a file matches the value you were given; it does not prove the source itself was honest, so get checksums from the same trusted place as the file. Treat anything you generate for security as sensitive from the moment it exists.

Every tool in this category runs in your browser with no sign-up. Browse the full library of 100 free browser tools on Tabaix.