All Developer Tools
Complete collection of free online utilities for developers
Browse tools organized by category. All tools run securely in your browser with no data transmission.
Formatters
Beautify and format code for better readability
JSON Formatter
Format, validate, and prettify JSON data with syntax highlighting
HTML Formatter
Format and beautify HTML code with proper indentation
CSS Formatter
Format CSS code with consistent indentation and spacing
JavaScript Formatter
Format JS code with proper indentation and syntax highlighting
SQL Formatter
Format SQL queries with proper indentation and capitalization
XML Formatter
Format XML documents with proper indentation and structure
YAML Formatter
Format and validate YAML configuration files
JSON Path
Query and extract data from JSON using JSONPath expressions
Encoders & Decoders
Base64, URL, HTML and more encoding tools
Base64 Encoder/Decoder
Encode and decode Base64 strings with support for URL-safe encoding
JWT Decoder
Decode JWT tokens and inspect payload, header, and expiration
URL Encoder/Decoder
Encode and decode URLs and query parameters
HTML Entity Encoder/Decoder
Encode and decode HTML entities and escape special characters
Hex Encoder/Decoder
Convert between hexadecimal and plain text representations
ASCII Encoder/Decoder
Convert between ASCII codes and text characters
Unicode Converter
Convert text to Unicode escape sequences and back
Generators
UUID, passwords, hashes, and random data
UUID Generator
Generate UUID v1/v4 with bulk generation support
Password Generator
Create strong, secure passwords with customizable rules
Hash Generator
Generate MD5, SHA1, SHA256, SHA512 hashes
Checksum Calculator
Calculate file checksums and verify data integrity
Lorem Ipsum Generator
Generate placeholder text for layouts and designs
Random Number Generator
Generate random numbers within a custom range
ID Generator
Generate unique identifiers with custom formats
Color Generator
Generate random color palettes and schemes
QR Code Generator
Create QR codes from text or URLs instantly
Converters
Transform data between different formats and units
Timestamp Converter
Convert Unix timestamps to human-readable dates and back
Date Calculator
Calculate differences between dates and add days
Number Base Converter
Convert between binary, octal, decimal, and hexadecimal
Color Converter
Convert between HEX, RGB, HSL color formats
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin
Unit Converter
Convert length, weight, volume, and other units
Currency Converter
Convert between world currencies with live rates
Validators
Check syntax and validate data formats
JSON Validator
Validate JSON syntax and identify structural errors
XML Validator
Validate XML documents against DTD and schema
YAML Validator
Validate YAML configuration files for syntax errors
HTML Validator
Check HTML for syntax errors and standards compliance
CSS Validator
Validate CSS properties and values for correctness
Regex Tester
Test and debug regular expressions with live preview
Email Validator
Validate email addresses format and deliverability
String Tools
Case converters, diff checkers, and text manipulation
Text Case Converter
Convert between camelCase, snake_case, PascalCase, and more
Text Diff Checker
Compare two texts and highlight differences side by side
Diff Tool
GitHub-style unified and split diff view for code comparison
Text Compare
Compare texts with similarity percentage and detailed diff
String Length Calculator
Count characters, words, lines, and bytes in text
Text Replacer
Find and replace text with regex support and bulk operations
Slug Generator
Generate URL-friendly slugs from any text
Network Tools
IP lookup, DNS checker, and network utilities
IP Address Lookup
Look up IP address geolocation and ownership information
IP Address Tools
Convert IP addresses between dotted and binary formats
DNS Checker
Check DNS records for any domain name
WHOIS Lookup
Look up domain registration and ownership details
URL Parser
Parse and inspect URL components and query parameters
DevOps Tools
Docker, Kubernetes, and CI/CD utilities
Frequently Asked Questions
How often are new tools added?
We regularly evaluate developer needs and add new tools based on demand. If you have suggestions for new tools, please contact us through our feedback form.
Are all tools free to use?
Yes, all our tools are completely free to use. We don't require registration, and there are no usage limits. We support our operations through advertising.
Can I use these tools offline?
Our tools require an internet connection to load initially. However, once loaded, most functionality works offline since the processing happens in your browser.
How accurate are the tools?
We prioritize accuracy and reliability. All tools use well-established algorithms and libraries to ensure precise results.
Is my data safe when using these tools?
All processing happens locally in your browser. No data is sent to our servers, ensuring complete privacy and security.