105 Free Developer Tools

The ultimate collection of online developer tools. JSON formatter, Base64 encoder, regex tester, UUID generator, and many more. All tools work in your browser with no registration required.

Browse All ToolsTry Regex Studio

Why Developers Choose DevTool Platform

Lightning Fast

Most tools process data instantly in your browser. Network tools contact servers or external services when needed.

Privacy Aware

Local tools keep input on your device. Network and breach checks send the required request data to servers or external services so they can return results.

Always Available

Access all tools from any device with a modern web browser. No downloads, installations, or account creation required.

Most Popular Developer Tools

🆔
UUID Generator
Generate cryptographic RFC 9562 UUIDv4 and monotonic UUIDv7 batches, or inspect UUID format, version, variant, and v7 timestamp
uuid
uuidv4
+5
🔐
Password Studio
Comprehensive password generation, analysis, and security toolkit
password
generator
+3
⏰
Timestamp Converter
Convert exact Unix seconds, milliseconds, microseconds, and nanoseconds with strict RFC 3339 and UTC, local, or IANA timezone handling
timestamp
date
+6
🎨
Color Studio
CSS Color 4 toolkit for conversion and gamut mapping, OKLCH palettes, perceptual gradients, WCAG 2.2 contrast, and approximate color-vision previews
color
hex
+18
📱
Icon Pack Generator
Generate professional icon packs for Android and iOS from high-quality images
icon
android
+5
🔍
Regex Studio
Comprehensive regex toolkit for testing, replacing, and exploring patterns
regex
regexp
+4
📚
Regex Pattern Library
Browse and use common regex patterns for various use cases
regex
patterns
+3
✨
JSON Studio
Complete JSON processing toolkit with formatting, validation, path querying, schema validation, and diff comparison
json
studio
+5
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The Ultimate Developer Tools Collection

DevTool Platform brings together 105 developer tools and studio utilities in one fast, easy-to-use platform. Most processing is local; network tools make remote requests when their function requires it. No registration is required.

Popular Developer Tools

Text & Data Processing

  • JSON Formatter: Pretty print and validate JSON data with syntax highlighting
  • Base64 Encoder: Encode and decode Base64 strings for data transmission
  • URL Encoder: Safely encode URLs and decode URL-encoded strings
  • HTML Entities: Convert HTML entities and special characters
  • Case Converter: Transform text between different case formats

Development Tools

  • Regex Tester: Test and debug regular expressions with real-time matching
  • UUID Generator: Generate unique identifiers for your applications
  • Hash Generator: Create MD5, SHA1, SHA256 hashes for data integrity
  • Password Generator: Create secure passwords with custom rules
  • Color Converter: Convert between HEX, RGB, HSL color formats

Why Choose DevTool Platform?

Free Forever

All tools are completely free with no hidden costs or premium features

No Registration

Start using tools immediately without creating accounts or providing emails

Mobile Friendly

Responsive design works perfectly on phones, tablets, and desktop computers

Regular Updates

New tools added regularly based on developer community feedback