Code
Free code — fast, private tools that run entirely in your browser. No sign-up, no uploads, no waiting. Pick a tool below and get your result in seconds.
JSON Formatter
Format and validate JSON free with yhstky's 2026 JSON formatter. Beautify minified data and catch syntax…
Open →Password Generator
Generate strong random passwords free with yhstky's 2026 password generator. Set the length and character types,…
Open →Regex Tester
Test regular expressions free with yhstky's 2026 regex tester. Match patterns against sample text with live…
Open →URL Encoder & Decoder
Encode and decode URLs instantly — free, no sign-up. Live sync as you type, bulk line-by-line…
Open →UUID Generator
Generate free UUIDs online in 2026 with yhstky's UUID generator. Create secure RFC 4122 version 4…
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