Free Tools for Developers & Engineers
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Audio Tools
3D Audio Effect
Create immersive 3D audio effects
Audio Trimmer
Trim and cut audio files online
Auto Panner
Create automatic panning effects for audio
Bassbooster
Boost bass frequencies in audio files
Equalizer
Adjust audio frequencies with multi-band equalizer
Noise Reducer
Remove background noise from audio recordings
Pitch Shifter
Change pitch of audio without affecting tempo
Reverb
Add reverb effects to audio recordings
Reverse Audio
Reverse audio tracks and create backward effects
Slowedreverb
Apply slowed and reverb effects to audio
Stereo Panner
Control stereo panning and audio positioning
Tempo Changer
Change audio tempo without affecting pitch
Vocal Remover
Remove or isolate vocals from audio tracks
Volume Changer
Adjust volume levels of audio files
Audio Normalizer
Normalize audio loudness by boosting to a safe peak level
Audio Merger
Merge multiple audio files into one track (concatenate)
Code & Dev
Api Doc Generator
Generate API documentation from requests and responses
Code Beautifier
Format and beautify code in various languages
Code Snippet Generator
Code Snippet Generator - Free online tool for developers
Codemod Runner
Run and test codemod transformations on code
CSS Minifier
Minify CSS code to reduce file size
HTML Minifier
Minify HTML code to reduce file size
JavaScript Minifier
Minify JavaScript code for production
JSON Formatter
Format and validate your JSON with syntax highlighting
Package Json Generator
Generate and manage package.json files
Regex Playground
Test and debug regular expressions with explanations
Sql Formatter
Format and beautify SQL queries
JWT Token Generator
Generate JSON Web Tokens (JWT) with custom headers and payloads
Gitignore Generator
Generate .gitignore files from popular templates and custom rules
Data & Format
Base64 Encoder/Decoder
Encode or decode Base64 strings and files
Color Converter
Convert between different color formats
Csv Editor
Edit and manipulate CSV data online
CSV to JSON Converter
Convert CSV data to JSON format and vice versa
File Hash Calculator
Calculate file hashes (MD5, SHA1, SHA256)
Graphql Playground
Test GraphQL queries and explore schemas
Hash Generator
Generate various hash types (MD5, SHA1, SHA256)
Image Base64
Convert images to Base64 and vice versa
MD5 Hash Generator
Generate MD5 hashes from text or files
Timestamp
Convert between timestamps and human-readable dates
Url Encoder
Encode and decode URLs and URI components
YAML to JSON Converter
Convert between YAML and JSON formats
Data Size Converter
Convert between bytes, KB, MB, GB, TB and binary units
Text & Content
Character Counter
Count characters, words, and lines in text
Developer Cheatsheets
Quick reference guides for popular development tools and languages
Git Cheatsheet
Essential Git commands reference guide
Python Cheatsheet
Python syntax and function reference
Docker Cheatsheet
Docker commands and best practices
SQL Cheatsheet
SQL queries and database commands
FFmpeg Cheatsheet
FFmpeg commands for video/audio processing
Lorem Ipsum
Generate Lorem Ipsum placeholder text
Markdown Editor
Write and preview Markdown with real-time rendering
String Escape
Escape and unescape strings for different contexts
Text Diff
Compare and highlight differences between two texts
Slug Generator
Convert text to URL-friendly slugs with custom options
Network
Design
Color Contrast Checker
Check color contrast ratios for accessibility
Color Picker
Advanced color picker with multiple format support
Css Animation Generator
Create CSS animations with visual controls
CSS Flexbox Generator
Visual tool to generate and understand CSS flexbox layouts
CSS Grid Generator
Visual tool to generate CSS grid layouts
Css Specificity Calculator
Calculate CSS selector specificity
Box Shadow Generator
Generate CSS box-shadow with visual controls
Utilities
Cookie Consent Generator
Generate GDPR-compliant cookie consent banners
Cron Expression
Build and validate cron expressions
Json Schema Generator
Json Schema Generator - Free online tool for developers
Json To Xml
Json To Xml - Free online tool for developers
Jwt Decoder
Jwt Decoder - Free online tool for developers
Keyboard Tester
Test keyboard functionality and key responses
Password Generator
Generate secure passwords with custom options
Pomodoro Timer
Boost productivity with the Pomodoro Technique timer
Px To Em Converter
Px To Em Converter - Free online tool for developers
QR Code Generator
Generate QR codes from text or URLs
Regex
Regex - Free online tool for developers
Sample Data
Sample Data - Free online tool for developers
Sha1
Sha1 - Free online tool for developers
Sha256
Sha256 - Free online tool for developers
Svg Path Editor
Svg Path Editor - Free online tool for developers
Text Case Converter
Text Case Converter - Free online tool for developers
Unit Converter
Unit Converter - Free online tool for developers
Websocket Tester
Websocket Tester - Free online tool for developers
Xml Formatter
Xml Formatter - Free online tool for developers
UUID Generator
Generate unique identifiers (UUIDs) with different versions
robots.txt Generator
Create robots.txt with common directives and sitemap support
SemVer Calculator
Bump and compare semantic versions (major, minor, patch)
URL Parser
Parse and build URLs, inspect query params and components
UTM Builder
Create UTM-tagged URLs for analytics campaigns
DevOps
Dependency Analyzer
Analyze and visualize project dependencies
Docker Compose Generator
Generate Docker Compose files with visual interface
Env File Manager
Create and manage .env files for different environments
Log Viewer
Parse, filter, and analyze application logs
Chmod Calculator
Calculate Unix file permissions in octal and symbolic notation
YAML Validator
Validate YAML syntax and find errors in configuration files
Htpasswd Generator
Generate htpasswd file entries for Apache basic authentication
Nginx Config Generator
Generate nginx server block configurations for web servers
Systemd Service Generator
Generate systemd unit files for Linux services
SSH Config Generator
Generate SSH config file entries for easier server connections
Image & Media
Image Compressor
Compress images while maintaining quality
SVG Optimizer
Optimize SVG files for smaller size and better performance
Image Resizer
Resize images to exact dimensions while keeping quality
Aspect Ratio Calculator
Calculate aspect ratios and resize dimensions proportionally
Placeholder Image Generator
Generate placeholder images with custom sizes, colors, and text
Workflow
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