🛠️ Dev & Utility Tools
Thirty-five small everyday tools you reach for while debugging. All of these run entirely in your browser — nothing you paste is sent to a server.
🔓 Base64 Decoder
Decode Base64 back to text, handling URL-safe input and missing padding.
Open Tool →#️⃣ Hash Generator
MD5, SHA-1, SHA-256, SHA-384 and SHA-512 for text or files, plus checksum verification.
Open Tool →⏰ Cron Tester
Validate a crontab line, read it in plain English and see the next run times.
Open Tool →🛤️ JSONPath Tester
Test JSONPath expressions against a JSON document and see the matches.
Open Tool →📡 HTTP Method Reference
Every standard HTTP method, whether it's safe and idempotent, and what it's for.
Open Tool →🙈 .gitignore Generator
Build a combined .gitignore from curated templates for popular languages and tools.
Open Tool →💻 Curl Command Builder
Build a shell-safe curl command from a method, URL, headers and body.
Open Tool →🔌 Random MAC Address Generator
Generate random locally-administered MAC addresses in bulk.
Open Tool →🔤 HTML Entity Reference
Searchable lookup of HTML named entities, symbols and numeric codes.
Open Tool →🔍 JSON Diff Tool
Compare two JSON documents and see every added, removed or changed key.
Open Tool →📐 XML Formatter & Minifier
Beautify XML with indentation, or minify it to a single line.
Open Tool →🆔 UUID v5 Generator
Deterministic name-based UUIDs — same namespace and name, same UUID every time.
Open Tool →🕵️ User-Agent Parser
Break a User-Agent string down into browser, engine, OS and device type.
Open Tool →