Free developer tools
110 quick tools for code, data, images, PDFs and more. They run in your browser, so your files and text stay on your device.
6 tools
Password Generator
Create strong random passwords or passphrases with entropy and crack-time estimates.
Open toolPassword Strength Tester
See how strong a password really is, what makes it weak and how to improve it.
Open toolBcrypt Hash Generator
Hash passwords with bcrypt at any cost factor and verify a password against a hash.
Open toolSSL Certificate Decoder
Decode a PEM certificate to see its subject, issuer, validity, SANs, key and fingerprints.
Open toolEnvironment Variable Validator
Check env vars for leaked secrets, weak values, missing required keys and naming problems.
Open toolJavaScript Obfuscator
Make JavaScript harder to read with mangled names, encoded strings and compacted code.
Open tool