Veyth — tiny tools, no tracking

Fast, private, client-side tools for developers and makers. JSON, UUID, regex, JWT & more. No tracking, no upload — everything runs in your browser.

• JSON Formatter & Validator — Format, validate, minify & sort keys — with exact error locations, one-click fixes and a tree view. Runs 100% locally.
• UUID Generator & SHA-256 Hash — Generate v4 & v7 UUIDs in bulk, inspect any UUID, and SHA-256/512 or HMAC hash text and files with Web Crypto.
• Regex Tester — Live match highlighting, capture groups and replace preview — with a cheat sheet and a library of common patterns.
• Base64 & URL Encoder / Decoder — Encode and decode Base64, Base64URL, URL, Hex and HTML entities — UTF-8 safe, auto-detects encoded input.
• JWT Decoder — Decode JSON Web Tokens and verify HS/RS/PS/ES signatures locally — claims explained. Your token never leaves the page.
• Image Resizer & Converter — Resize, compress and convert JPG, PNG, WebP & AVIF in bulk — or shrink to a max file size. Nothing is uploaded; EXIF/GPS data is stripped.
• Color Picker from Image — Pick a color from any photo with a zoom dropper, then fine-tune the match in a honeycomb of nearby shades. HEX, RGB, HSL, OKLCH & CMYK — the photo is never uploaded.