Stringer - Text Tools

Stringer puts 13 essential text transformation tools in your pocket — the ones you actually use every day as a developer. ENCODE & DECODE • Base64 — Encode and decode Base64 strings instantly • URL Encode — Percent-encode and decode URLs and query params • JWT Decode — Paste a JWT, see header and payload immediately • Number Base — Convert between decimal, hex, binary, and octal • Timestamp — Unix timestamps to human dates and back • HTML Entities — Encode and decode HTML entities FORMAT • JSON — Pretty-print, minify, or validate JSON with clear error messages TRANSFORM • Case Transform — camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, and more • Regex — Find matches or do regex replacements with live results • Lines — Sort, reverse sort, deduplicate, or remove empty lines GENERATE • Hash Generator — MD5, SHA-1, and SHA-256 hashes • UUID Generator — Generate 1, 5, 10, or 25 UUIDs at once ANALYZE • Text Stats — Characters, words, lines, paragraphs, and reading time WHY STRINGER? One-time purchase. No subscription. Every tool runs instantly — no spinners, no loading. 100% on-device. Your text never touches a server. Zero network requests. Zero analytics. Zero tracking. Share Extension — select text anywhere, transform it, copy the result. Favorites — star the tools you use most for instant access. History — every transform saved locally so you can go back anytime.