Developer tools that
just work

JSON formatter, Base64, JWT decoder, regex tester and 52 more — all running in your browser. No signup, no tracking, always free.

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JSON Tools

10 tools
JSON Formatter
Beautify + indent
→
JSON Validator
Syntax check
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JSON Compare
Diff two JSONs
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JSON Minifier
Strip whitespace
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JSON Sorter
Sort keys A-Z
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JSON to CSV
Export as table
→
JSON to XML
Cross-format
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JSON Viewer
Tree + collapse
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JSONPath Tester
Query paths
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JSON Schema Gen
Auto-infer schema
→
T

Text Tools

8 tools
Text Compare
Line-by-line diff
→
Find & Replace
Regex support
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Word Counter
Words, chars, lines
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Case Converter
UPPER / lower / Title
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Text Sorter
Sort / dedupe lines
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Text Cleaner
Strip HTML/whitespace
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Lorem Generator
Placeholder text
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Line Numberer
Add line numbers
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🔐

Encode / Decode

8 tools
Base64
File + text
→
URL Encode
Percent encoding
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JWT Decoder
Header, payload, sig
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Hash Generator
MD5 / SHA-256/512
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HTML Encode
Entities
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Hex Encode
String to hex
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QR Generator
URL, text, vCard
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HMAC Generator
SHA-256 / SHA-512
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🕐

Date & Time

6 tools
Timestamp
Unix ↔ human date
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Timezone
Multi-zone view
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Date Calculator
Diff, add/sub days
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Cron Expression
Build + explain cron
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Number Converter
Dec/Hex/Bin/Oct
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Byte Converter
KB/MB/GB/TB
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Code & Format

8 tools
CSS Minifier
Compress CSS
→
JS Minifier
Compress JS
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HTML Formatter
Beautify HTML
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YAML ↔ JSON
Cross-convert
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XML ↔ JSON
Cross-convert
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SQL Formatter
Beautify queries
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Markdown Preview
Live render
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Regex Tester
Match + highlight
→
🎨

Color & Design

5 tools
Color Converter
HEX ↔ RGB ↔ HSL
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Color Palette
Complementary+shades
→
Contrast Checker
WCAG AA / AAA
→
CSS Gradient
Linear/radial
→
CSS Shadow
box-shadow builder
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All tools run entirely in your browser — your data never leaves your device.