Tools
Free, privacy-first utilities that run entirely in your browser — no sign-up, no backend, nothing uploaded.
Password Generator
LiveGenerate strong, random passwords with full control over length, casing, numbers, and symbols. Runs entirely in your browser using the Web Crypto API — nothing leaves your device.
UUID Generator
LiveGenerate random v4 UUIDs in bulk, with optional uppercase, hyphen, and brace formatting. Copy individually or all at once — all done locally in your browser.
JSON Formatter & Validator
LivePretty-print, validate, minify, and sort JSON with clear, line-and-column error messages. Choose your indentation — everything is parsed locally in your browser.
JWT Decoder
LiveDecode a JSON Web Token to inspect its header, payload, and claims, with human-readable expiry status. Decode-only and fully local — your token never leaves your browser.
Token Counter & Cost Estimator
LiveEstimate the token count of a prompt and what it will cost across Claude and GPT models, with editable pricing and input/output costs. Calculated entirely in your browser.
Hash & Checksum
LiveCompute SHA-256, SHA-1, SHA-384, and SHA-512 hashes of text or files, and verify against a known checksum. Files are hashed locally with the Web Crypto API — never uploaded.
Base64 Encoder & Decoder
LiveEncode and decode Base64 text with full UTF-8 support and a URL-safe option. Swap directions in one click — everything runs locally in your browser.