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JSON Tools
📐 JSON Formatter🎨 JSON Beautifier🗜️ JSON Minifier✅ JSON Validator📊 JSON → CSV
Encode / Decode
🔐 Base64🔗 URL Encode🏷️ HTML Encode🪙 JWT Decoder
Code Formatters
🌐 HTML Formatter🎨 CSS Beautifier⚡ JS Formatter🗄️ SQL Formatter📄 XML Formatter
Color & UI
🎨 Color Picker🔢 HEX to RGB🌈 CSS Gradient🌑 Box Shadow⬛ Border Radius
Text Tools
📝 Lorem Ipsum🔍 Regex Tester🔑 Password Gen🔠 Case Converter🆔 UUID Generator
⚡ Free · Fast · Private · No signup

The Ultimate Developer
Toolbox

24+ browser-based tools for JSON, encoding, code formatting, colors & more. Your data never leaves your device.

🔍
📐 JSON 🔐 Base64 🎨 CSS 🔑 Password 🔍 Regex 🆔 UUID
24+ Free Tools
100% Browser-based
0 Sign-up needed
0ms Server latency
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JSON Formatter
Pretty-print & highlight JSON instantly.
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JSON Beautifier
Color-coded, readable JSON from raw or minified input.
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JSON Minifier
Strip whitespace & compress JSON for production.
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JSON Validator
Detect syntax errors & invalid JSON instantly.
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JSON → CSV Converter
Convert JSON arrays to CSV with auto headers & download.
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Encode / Decode Tools

Encode, Decode & Inspect

4 tools
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Base64 Encode / Decode
Encode text to Base64 or decode back instantly.
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URL Encode / Decode
Percent-encode URLs or decode them instantly.
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HTML Encode / Decode
Convert special chars to HTML entities and back.
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JWT Decoder
Inspect JWT header, payload & expiry client-side.
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Code Formatter Tools

Format & Beautify Code

5 tools
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HTML Formatter
Beautify HTML with smart indentation & nesting.
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CSS Beautifier
Format CSS with indentation & syntax highlighting.
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JavaScript Formatter
Expand minified JS with proper spacing & bracing.
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SQL Formatter
Format SQL queries with clause-per-line layout.
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XML Formatter
Validate & beautify XML with rich highlighting.
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Color & UI Tools

Design Color & CSS

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Color Picker
Pick colors & copy HEX, RGB, HSL values instantly.
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HEX to RGB Converter
Convert HEX to RGB, HSL with alpha & batch support.
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CSS Gradient Generator
Build linear, radial & conic gradients visually.
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Box Shadow Generator
Build multi-layer CSS shadows with live preview.
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⬛
Border Radius Generator
Design border-radius shapes with per-corner controls.
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Text / Code Utility Tools

Text & Code Utilities

5 tools
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Lorem Ipsum Generator
Generate placeholder text by paragraphs or words.
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Regex Tester
Test regex live with match count & capture groups.
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Password Generator
Generate secure passwords with strength & entropy score.
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Case Converter
Uppercase, camelCase, snake_case & more in one click.
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UUID Generator
Generate RFC 4122 v4 UUIDs & validate in bulk.
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Why jsonweb.in

Built for Developers

No tracking, no servers, no fluff. Just fast, private tools that work the way you expect.

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100% Private

Your data never leaves the browser tab. All processing is done with JavaScript locally — zero server calls.

⚡

Instant Results

No round-trips, no loading spinners. Results appear as you type, letting you iterate at the speed of thought.

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Works Everywhere

Fully responsive — desktop, tablet, or phone. Works offline after first load. No app install needed.

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Zero Signup

No account, no email, no credit card — ever. Bookmark and use immediately. It’s that simple.

📋

Copy in One Click

Every tool output has a copy button. Paste-ready results, always formatted exactly the way you need them.

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Light & Dark Mode

Toggle between light and dark themes anytime. Your preference is saved and applied across every tool.