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Developer Tools That Just Work

Format JSON, run SQL queries, write Java, format Python — all free, all instant, all in your browser.

All 📋 JSON 1 💻 Code 5 📝 Text 4 ⚡ Generator 8 📄 Diff Checker 1 🐍 Python 2
ESC
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String Escape & Unescape

Escape or unescape strings for JSON, Java, JavaScript, URL, HTML, XML, Unicode \u and Base64 — live, in your browser.

Text 80 uses
STR
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String Utils

Case converter, find & replace, trim, sort lines, deduplicate, slugify, padding and character stats — all client-side.

Text 68 uses
🔐
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Base64 Encode / Decode

Encode and decode Base64 strings and files instantly

Text 74 uses
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Regex Library

Browse common regex patterns by category — email, URL, UUID, passwords, and more.

Text 128 uses