Developer Tools
A comprehensive collection of useful tools for developers. Convert formats, calculate values, and work with code more efficiently.
Quick Overview
JSON ⇄ YAML Converter
Convert between JSON and YAML formats easily
JSON Formatter / Minifier
Format and minify JSON with syntax highlighting
XML ⇄ JSON Converter
Convert between XML and JSON formats
CSV ⇄ JSON Converter
Convert CSV files to JSON and vice versa
Base64 Encode/Decode
Convert text to and from Base64 format
URL Encoder/Decoder
Encode and decode URL parameters
HTML Entities Encode/Decode
Encode and decode HTML entities
Markdown ⇄ HTML Converter
Convert Markdown to HTML and vice versa
Text Case Converter
Convert text between different cases (lowercase, uppercase, titlecase, snake_case, camelCase)
UUID Generator
Generate UUID v4 and v5
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes
Random String Generator
Generate random strings with customizable options
Regex Escape/Unescape Tool
Escape and unescape regex special characters
Color Format Converter
Convert between hex, RGB, and HSL color formats
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates
JWT Decoder
Decode, edit and validate JWT tokens
IP Subnet Calculator
Calculate subnet masks and network information
CIDR Range Calculator
Calculate CIDR ranges and network addresses
Byte Size Converter
Convert between KB, MB, GB, TB and more
Time Duration Calculator
Convert between milliseconds, seconds, minutes, hours, and days
Cron Expression Parser
Parse and visualize cron expressions
Git Commit Message Generator
Generate conventional commit messages
Password Strength Checker
Check password strength and security
Bcrypt Hash Generator
Generate bcrypt hashes for passwords
Levenshtein Distance Calculator
Calculate edit distance between two strings
String Similarity Calculator
Calculate similarity between strings
Compression Ratio Calculator
Calculate compression ratios
cURL → Fetch Converter
Convert cURL commands to JavaScript fetch
Fetch → Axios Converter
Convert fetch requests to axios syntax
OpenAPI Schema Formatter
Format and validate OpenAPI schemas
REST API Request Builder
Build API requests visually
Webhook Payload Tester
Test webhook payloads locally
JSON Schema Validator
Validate JSON against JSON Schema
UUID Inspector
Analyze UUID structure and components
Base64URL Decode Tool
Decode base64url encoded strings
HTTP Header Parser
Parse and analyze HTTP headers
HTTP Status Code Lookup
Lookup HTTP status codes with descriptions
API Response Mock Generator
Generate mock API responses
CSS Flexbox Generator
Generate CSS flexbox code with visual preview
CSS Grid Generator
Generate CSS grid layouts with visual preview
Border Radius Visualizer
Visualize and generate border-radius CSS
Box Shadow Generator
Generate CSS box-shadow values with preview
Linear Gradient Generator
Create CSS linear gradients with visual preview
SVG Path Visualizer
Visualize and edit SVG path commands
SVG Optimizer
Optimize SVG files by removing unnecessary code
Responsive Breakpoint Preview
Preview your site at different screen sizes
Color Palette Generator
Generate harmonious color palettes
Contrast Checker (WCAG)
Check color contrast for WCAG compliance
CSS clamp() Generator
Generate CSS clamp() values for responsive typography
Viewport Height/Width Calculator
Calculate viewport units and convert between vh/vw and pixels
JS Date Formatter Sandbox
Format dates using JavaScript Date methods
JavaScript Object Flattener/Unflattener
Flatten and unflatten nested JavaScript objects
Deep Clone Visualizer
Visualize and create deep clones of JavaScript objects
Event Loop Visualizer
Simple animation showing JavaScript event loop
localStorage JSON Editor
Edit and manage localStorage as JSON
Random Array Shuffler
Shuffle arrays using different algorithms
Array Difference/Intersection Tool
Find differences and intersections between arrays
String Manipulation Toolkit
Split, trim, replace and manipulate strings
JSON Comparator / Diff Viewer
Compare two JSON objects and view differences
Promise Chaining Visualizer
Visualize promise chains and async flow
Cron Parser & Visualizer
Parse cron expressions and visualize schedules
Log Parser
Parse Apache, Nginx, and JSON logs
SQL Formatter
Format and beautify SQL queries
SQL → Prisma Schema Converter
Convert SQL schemas to Prisma schema format
SQL → Mongo Query Helper
Convert SQL queries to MongoDB queries
Node.js package.json Visualizer
Visualize and analyze package.json dependencies
Dockerfile Syntax Checker
Validate Dockerfile syntax
Environment Variable Diff Tool
Compare differences between environment files
HTTP Request Builder
Build HTTP requests with all options
Email Validation Test Tool
Test email validation with different regex patterns
CSV Cleaner
Clean and sanitize CSV files
CSV Deduplicator
Remove duplicate rows from CSV files
CSV Column Splitter/Joiner
Split and join CSV columns
Delimiter Converter
Convert between tab, comma, and pipe delimiters
JSON Flatten Tool
Flatten nested JSON objects
JSON Collapse/Expand Viewer
Collapse and expand JSON structures
Random Dataset Generator
Generate random datasets for testing
HTML Table → JSON Converter
Convert HTML tables to JSON format
JSON → TypeScript Interface Generator
Generate TypeScript interfaces from JSON
JSON → Zod Schema Generator
Generate Zod schemas from JSON
JSON → JSDoc Type Generator
Generate JSDoc type definitions from JSON
JSON → C# Class Generator
Generate C# classes from JSON
Browse by Category
JSON ⇄ YAML Converter
Convert between JSON and YAML formats easily
JSON Formatter / Minifier
Format and minify JSON with syntax highlighting
XML ⇄ JSON Converter
Convert between XML and JSON formats
CSV ⇄ JSON Converter
Convert CSV files to JSON and vice versa
Base64 Encode/Decode
Convert text to and from Base64 format
URL Encoder/Decoder
Encode and decode URL parameters
HTML Entities Encode/Decode
Encode and decode HTML entities
Markdown ⇄ HTML Converter
Convert Markdown to HTML and vice versa
Text Case Converter
Convert text between different cases (lowercase, uppercase, titlecase, snake_case, camelCase)
UUID Generator
Generate UUID v4 and v5
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes
Random String Generator
Generate random strings with customizable options
Regex Escape/Unescape Tool
Escape and unescape regex special characters
Color Format Converter
Convert between hex, RGB, and HSL color formats
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates
JWT Decoder
Decode, edit and validate JWT tokens
IP Subnet Calculator
Calculate subnet masks and network information
CIDR Range Calculator
Calculate CIDR ranges and network addresses
Byte Size Converter
Convert between KB, MB, GB, TB and more
Time Duration Calculator
Convert between milliseconds, seconds, minutes, hours, and days
Cron Expression Parser
Parse and visualize cron expressions
Git Commit Message Generator
Generate conventional commit messages
Password Strength Checker
Check password strength and security
Bcrypt Hash Generator
Generate bcrypt hashes for passwords
Levenshtein Distance Calculator
Calculate edit distance between two strings
String Similarity Calculator
Calculate similarity between strings
Compression Ratio Calculator
Calculate compression ratios
cURL → Fetch Converter
Convert cURL commands to JavaScript fetch
Fetch → Axios Converter
Convert fetch requests to axios syntax
OpenAPI Schema Formatter
Format and validate OpenAPI schemas
REST API Request Builder
Build API requests visually
Webhook Payload Tester
Test webhook payloads locally
JSON Schema Validator
Validate JSON against JSON Schema
UUID Inspector
Analyze UUID structure and components
Base64URL Decode Tool
Decode base64url encoded strings
HTTP Header Parser
Parse and analyze HTTP headers
HTTP Status Code Lookup
Lookup HTTP status codes with descriptions
API Response Mock Generator
Generate mock API responses
CSS Flexbox Generator
Generate CSS flexbox code with visual preview
CSS Grid Generator
Generate CSS grid layouts with visual preview
Border Radius Visualizer
Visualize and generate border-radius CSS
Box Shadow Generator
Generate CSS box-shadow values with preview
Linear Gradient Generator
Create CSS linear gradients with visual preview
SVG Path Visualizer
Visualize and edit SVG path commands
SVG Optimizer
Optimize SVG files by removing unnecessary code
Responsive Breakpoint Preview
Preview your site at different screen sizes
Color Palette Generator
Generate harmonious color palettes
Contrast Checker (WCAG)
Check color contrast for WCAG compliance
CSS clamp() Generator
Generate CSS clamp() values for responsive typography
Viewport Height/Width Calculator
Calculate viewport units and convert between vh/vw and pixels
JS Date Formatter Sandbox
Format dates using JavaScript Date methods
JavaScript Object Flattener/Unflattener
Flatten and unflatten nested JavaScript objects
Deep Clone Visualizer
Visualize and create deep clones of JavaScript objects
Event Loop Visualizer
Simple animation showing JavaScript event loop
localStorage JSON Editor
Edit and manage localStorage as JSON
Random Array Shuffler
Shuffle arrays using different algorithms
Array Difference/Intersection Tool
Find differences and intersections between arrays
String Manipulation Toolkit
Split, trim, replace and manipulate strings
JSON Comparator / Diff Viewer
Compare two JSON objects and view differences
Promise Chaining Visualizer
Visualize promise chains and async flow
Cron Parser & Visualizer
Parse cron expressions and visualize schedules
Log Parser
Parse Apache, Nginx, and JSON logs
SQL Formatter
Format and beautify SQL queries
SQL → Prisma Schema Converter
Convert SQL schemas to Prisma schema format
SQL → Mongo Query Helper
Convert SQL queries to MongoDB queries
Node.js package.json Visualizer
Visualize and analyze package.json dependencies
Dockerfile Syntax Checker
Validate Dockerfile syntax
Environment Variable Diff Tool
Compare differences between environment files
HTTP Request Builder
Build HTTP requests with all options
Email Validation Test Tool
Test email validation with different regex patterns
CSV Cleaner
Clean and sanitize CSV files
CSV Deduplicator
Remove duplicate rows from CSV files
CSV Column Splitter/Joiner
Split and join CSV columns
Delimiter Converter
Convert between tab, comma, and pipe delimiters
JSON Flatten Tool
Flatten nested JSON objects
JSON Collapse/Expand Viewer
Collapse and expand JSON structures
Random Dataset Generator
Generate random datasets for testing
HTML Table → JSON Converter
Convert HTML tables to JSON format
JSON → TypeScript Interface Generator
Generate TypeScript interfaces from JSON
JSON → Zod Schema Generator
Generate Zod schemas from JSON
JSON → JSDoc Type Generator
Generate JSDoc type definitions from JSON
JSON → C# Class Generator
Generate C# classes from JSON
Regex Tester
Test and debug regular expressions
Regex Generator
Generate regex patterns using UI (non-AI)
Regex Library
Library of common regex patterns
Slug Generator
Generate URL-friendly slugs from text
Pluralization Tool
Convert between singular and plural forms
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text
Programmers Ipsum Generator
Generate programmer-themed placeholder text
Text Diff Viewer
View differences between two text documents
Sentence Case Converter
Convert text to sentence case
Character Count / Word Count Tool
Count characters, words, and lines in text
SHA Hash Calculators
Calculate SHA-1, SHA-256, SHA-512 hashes
Bcrypt Hash Generator
Generate bcrypt hashes (duplicate of existing?)
PBKDF2 Hash Playground
Generate PBKDF2 hashes with configurable parameters
HMAC Generator
Generate HMAC signatures (client-side)
Content Security Policy Builder
Build Content Security Policy headers
CORS Policy Builder
Build CORS policy configurations
HTTPS Status Checker
Check HTTPS status via fetch
Password Strength Tester
Test password strength (similar to existing?)
UUID v1/v4/v5 Generator
Generate UUID v1, v4, and v5
Base64URL Encoder
Encode strings to base64url format
Gitignore Generator
Generate .gitignore files
Commit Message Generator
Generate conventional commit messages (non-AI rules-based)
Branch Naming Helper
Generate git branch names
Semantic Version Calculator
Calculate and compare semantic versions
Conventional Commits Quick Reference
Quick reference for conventional commits
Git Command Explainer
Static reference pages for git commands
Image Resizer
Resize images client-side using canvas
Image Compressor
Compress images using browser API
WebP Converter
Convert images to WebP format
Lighthouse Score Explainer
Static explainer for Lighthouse scores
Minification Playground
Minify HTML, CSS, and JavaScript
Brotli vs Gzip Compression Comparison
Compare Brotli and Gzip compression
Network Latency Calculator
Calculate network latency and ping times
IAM Policy Formatter
Format AWS IAM policies (JSON prettifier)
AWS ARN Parser
Parse and analyze AWS ARNs
AWS Region Latency Table
Static table of AWS region latencies
S3 Bucket Policy Builder
Build S3 bucket policies
Kubernetes YAML Formatter
Format and validate Kubernetes YAML
Docker Image Size Calculator
Calculate Docker image sizes
Kubernetes Pod Resource Calculator
Calculate Kubernetes pod resource requirements
Terraform Variable Converter
Convert Terraform variables
Cloud Pricing Unit Calculator
Static tables for cloud pricing units
IP Address Info Tool
Get information about IP addresses
Subnet Calculator
Calculate subnet information (similar to existing?)
Hostname Validator
Validate hostname formats
Port Number Lookup
Lookup common port numbers and services
DNS Record Explainer
Explain DNS record types
Ping/Latency Simulator
Simulate ping and latency measurements
Bandwidth Calculator
Calculate bandwidth requirements
MTU Calculator
Calculate Maximum Transmission Unit sizes
CIDR Range Generator
Generate CIDR ranges (similar to existing?)
Big Number Calculator
Calculate with very large numbers
Bitwise Operator Calculator
Perform bitwise operations
Binary ⇄ Decimal ⇄ Hex Converter
Convert between binary, decimal, and hexadecimal
Floating Point Precision Visualizer
Visualize floating point precision issues
IEEE-754 Float Inspector
Inspect IEEE-754 floating point representation
Permutation / Combination Calculator
Calculate permutations and combinations
Probability Calculator
Calculate probabilities and statistics