Toolivaro

Password, hashing, and security tools

Security chores should not require installing anything or trusting a third party with your secrets. Every tool here runs locally: password generation uses the browser’s cryptographically secure random source, hashing uses the Web Crypto API, and JWT decoding never sends the token anywhere. Nothing is uploaded, logged, or stored.

Popular tools

Password Generator Stable Generate strong passwords locally with cryptographically secure randomness — unbiased sampling, class guarantees, zero uploads.
Hash Generator Stable Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes locally with WebCrypto — hex and base64 output, nothing uploaded.
JWT Decoder Stable Decode JWT header, payload, and claims locally — with optional HMAC signature verification. Nothing leaves your browser.
Base64 Encoder & Decoder Stable Encode text or files to Base64 and decode back, with UTF-8 handling, validation, and size stats — fully local.
UUID Generator Stable Generate RFC 4122 version-4 UUIDs from cryptographically secure randomness — one at a time or in bulk, fully local.
URL Encoder / Decoder Stable Encode or decode text for safe use in URLs with percent-encoding — instant, fully local, and faithful to the browser.
Developer text and JSON toolkit Format, minify, validate, convert, and diff JSON and text — plus regex testing and token counting for LLM work. Format and conversion tools Convert between data sizes, number bases, color formats, and image types — quick conversions for developers and designers.