All Developer Tools
Complete collection of free online utilities for developers. Browse 60+ tools organized by category, running securely in your browser.
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 correct nesting and structure.
YAML Formatter
Format and validate YAML configuration files.
GraphQL Formatter
Format and beautify GraphQL queries and schemas.
TypeScript Formatter
Format TypeScript code with syntax highlighting.
TOML Formatter
Format and validate TOML configuration files.
INI Formatter
Format and beautify INI configuration files.
Bash/Shell Formatter
Format and beautify shell scripts.
JSON Path
Query and extract data from JSON using JSONPath expressions.
JSON Schema Generator
Generate JSON Schema from your JSON data.
JSON Schema Validator
Validate JSON data against a JSON Schema.
HTML Minifier
Compress HTML code by removing whitespace and comments.
CSS Minifier
Compress CSS code by removing whitespace and comments.
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.
ROT13 / Caesar Cipher
Encode and decode text with ROT13 or Caesar cipher.
Morse Code Encoder/Decoder
Convert between text and Morse code.
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.
Bcrypt Hash Generator
Generate and verify bcrypt password hashes.
HMAC Generator
Generate HMAC signatures using SHA-256 or SHA-512.
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.
JSON Schema Generator
Generate JSON Schema from your JSON data.
JSON Schema to TypeScript
Convert JSON Schema to TypeScript interface definitions.
JSON to TypeScript
Generate TypeScript interfaces from JSON data.
JSON to Java
Generate Java POJO classes from JSON data.
JSON to C#
Generate C# classes from JSON data.
JSON to Go
Generate Go structs from JSON data.
JSON to Python
Generate Python dataclasses from JSON data.
CSS Gradient Generator
Create and customize CSS gradients with an interactive editor.
CSS Box Shadow Generator
Create and customize CSS box shadows with visual controls.
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/subtract days.
Number Base Converter
Convert between binary, octal, decimal, and hexadecimal.
HTML to JSX Converter
Convert HTML markup to React JSX syntax.
CSS to Tailwind Converter
Convert CSS styles to Tailwind CSS utility classes.
Markdown Editor & Previewer
Write and preview Markdown in real-time with live HTML preview.
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.
JSON to XML
Convert JSON data to well-formed XML documents.
XML to JSON
Convert XML documents to clean JSON format.
JSON to CSV
Convert JSON data to CSV spreadsheet format.
CSV to JSON
Convert CSV spreadsheets to JSON format.
JSON to YAML
Convert JSON data to clean YAML format.
YAML to JSON
Convert YAML configuration to JSON format.
XML to CSV
Extract XML data into CSV table format.
CSV to XML
Convert CSV data into structured XML.
Image to Base64
Convert images to Base64 encoded data URIs instantly.
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.
JSON Schema Validator
Validate JSON against a JSON Schema.
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.
Word Counter
Count characters, words, and lines.
Text Reverser
Reverse text, words, or lines.
Line Sorter
Sort lines alphabetically or by length.
Duplicate Line Remover
Remove duplicate lines and count occurrences.
JSON Compare
Compare two JSON objects side-by-side and spot differences instantly.
User Agent Parser
Parse and analyze User-Agent strings to identify browser and device.
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.
HTTP Status Codes
Look up HTTP status codes with detailed descriptions.
WHOIS Lookup
Look up domain registration and ownership details.
URL Parser
Parse and inspect URL components and query parameters.
SSL Certificate Checker
Check SSL/TLS certificate details for any domain.
DevOps Tools
Docker, Kubernetes, and CI/CD utilities
Frequently Asked Questions
What is All Tools?
The All Tools page is the complete directory of every developer utility available on DevFormatters, organized by category so you can quickly find the right tool for your task.
How accurate are the tools?
The tools use well-tested, established algorithms and libraries. For example, the JSON formatter uses the browser's native JSON.parse/stringify, and hash generators use the Web Crypto API.
Are all the tools listed here free?
Yes, every tool listed on this page is completely free. There are no paid tiers, no registration requirements, no usage quotas, and no feature gating. All processing is client-side.
Can I use these tools offline?
Yes, after the initial page load, all tools function without an internet connection because processing runs locally in your browser.