HashLens – Identify, Generate & Verify Hashes
Paste any hash and instantly know what it is — no terminal, no guessing, no internet.
HashLens is the only Chrome extension built around hash identification. Paste an unknown hash and it instantly tells you the algorithm — MD5, SHA-256, bcrypt, NTLM, Argon2, and 20+ more — along with the Hashcat mode and John the Ripper format for immediate use in security workflows. Also generates hashes from text and verifies downloaded file integrity against published checksums. Everything runs 100% locally in your browser.
Free to use
What it does
✓Instantly identify any unknown hash — MD5, SHA-256, bcrypt, NTLM, Argon2, and 20+ more
✓Shows Hashcat mode number and John the Ripper format string for every result
✓Security rating per algorithm — Secure, Weak, or Broken with a plain-English reason
✓Generate hashes from any text input across 9 algorithms simultaneously
✓Choose hex (lower/upper) or Base64 output
✓File Hash Verifier opens in a dedicated tab — compare any file's checksum without the popup closing mid-hash
✓Auto-detects copied hashes from clipboard when the popup opens
✓Right-click any selected text to hash or identify it from the context menu
✓Session history of your last 20 operations — no data ever persisted to disk by default
✓100% offline — nothing ever leaves your browser, Manifest V3, zero host permissions