Hashing & Crypto Tools
Hash text and files, generate UUIDs and passwords, create HMACs, and work with bcrypt or TOTP — all in the browser. DevTooKit keeps secrets and digests local so you can prototype auth and integrity checks without shipping credentials to a remote utility.
9 tools in this category · 91 total on DevTooKit · local-first, no upload
Tools in Hashing & Crypto
- Hash CalculatorGenerate MD5, SHA-1, SHA-256, SHA-512 and Blake3 hashes from text.
- Hash IdentifierDetect the type of a hash (MD5, SHA-1, SHA-256, bcrypt, Argon2, UUID, etc.) by pattern.
- File Hash CalculatorDrag a file in and compute MD5, SHA-1, SHA-256, SHA-512, Blake3 checksums.
- UUID GeneratorGenerate v4, v7, and nil UUIDs in bulk.
- Password GeneratorGenerate strong, configurable passwords with entropy meter.
- Bcrypt Hash GeneratorGenerate and verify bcrypt password hashes with adjustable cost factor (4–14).
- HMAC GeneratorGenerate HMAC-SHA1/256/384/512 signatures for API request signing. UTF-8/hex/base64 input.
- TOTP / 2FA GeneratorGenerate live TOTP codes from a Base32 secret or otpauth:// URI. SHA-1/256/512, local-only.
- PEM / X.509 Certificate DecoderDecode PEM or base64 X.509 certificates — subject, issuer, SANs, dates, fingerprints.
FAQ — Hashing & Crypto
Can these tools reverse a hash?
No. Cryptographic hashes are one-way. Generators create digests; they cannot recover original passwords from hashes.
Are passwords uploaded?
No. Password hashing and generation run on your device.