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PRIVATE BY DEFAULT

Useful tools. One focused workspace at a time.

Start with the job you need. Each workspace keeps the controls, conversions, and exports together — and your data stays in your browser.

MOST USED DATA WORKFLOW

Format and validate JSON, convert JSON and CSV, create JavaScript or TypeScript, sort keys, and compare payloads without hopping between tools.

Open JSON Toolkit

{ } Data & API 2

{ }

JSON Toolkit

Format, validate, convert JSON ↔ CSV, export JavaScript or TypeScript, and compare payloads

 🔑

JWT Decoder

Decode and inspect JSON Web Tokens

</> Code & Text 5

JS

JavaScript Formatter

Format or minify JavaScript with a side-by-side syntax-highlighted preview

 JS

JavaScript Runner

Write and execute JavaScript functions in a browser sandbox

 ±

Diff Checker

Compare texts side-by-side with git-style highlighting

 .*

Regex Tester

Test regular expressions with live matching

 MD

Markdown Preview

Write markdown with live preview and PDF export

🎨 Design 3

🖌

Color Studio

Pick, convert, save, and export colors and gradients as CSS or SASS

 ▣

QR Generator

Generate QR codes for URLs, WiFi, email, phone

 ✏

Canvas Draw

Draw flowcharts, diagrams, and wireframes with drag-and-drop shapes

🔧 Developer Utilities 3

⏱

Timestamp

Convert Unix timestamps and timezone converter

 🌐

Timezone

Convert time between timezones with world clocks

 📋

Clipboard Manager

Save, search, and organize clipboard snippets