Free Online Code Tools - Beautifiers & Formatters

Format and document API responses in multiple formats including JSON, XML, TypeScript interfaces, and documentation

Beautify and format JSON code online

Minify and compress JSON code online

Beautify and format XML code online

Minify and compress XML code online

Minify and optimize SVG files by removing unnecessary whitespace, comments, and redundant attributes

Beautify and format HTML code online

Minify and compress HTML code online

Beautify and format CSS code online

Minify and compress CSS code online

Beautify and format JavaScript code online

Minify and compress JavaScript code online

Format and beautify SQL queries with proper indentation and structure

Format SQL queries

Compress SQL queries

Format and beautify code in 25+ programming languages with customizable indentation, minification, and syntax highlighting

Analyze code complexity metrics including cyclomatic complexity, maintainability index, and cognitive complexity to improve code quality

Scan and decode QR codes from images or camera feed. Extract URLs, text, contact info, and other data from QR codes instantly

Organize, store, and manage your code snippets with tagging, search, and export functionality for efficient code reuse

Parse, analyze, and visualize log files with advanced filtering, statistics, and error detection for debugging and monitoring

Compare two code versions with line-by-line diff visualization, change statistics, and unified diff export for code review and version control

Analyze package.json dependencies for outdated packages, security vulnerabilities, and optimization opportunities with detailed reporting

Analyze web performance metrics from browser Performance API, Lighthouse reports, or HAR files with detailed insights and optimization recommendations

Pretty-print CSV data

Compress CSV data

Pretty-print YAML

Compress YAML

Pretty-print TOML

Compress TOML

Pretty-print INI files

Compress INI files

Format Markdown neatly

Remove Markdown whitespace

Format and beautify YAML files with proper indentation and structure

Optimize SVG files by removing unnecessary code and reducing file size

Minify JavaScript, CSS, HTML, and JSON code to reduce file size and improve performance

Query and extract data from JSON using JSONPath expressions with real-time results, comprehensive examples, and advanced filtering capabilities

Build powerful data transformation pipelines with filtering, mapping, sorting, grouping, and aggregation steps for processing JSON, CSV, and XML data

Analyze CSV data with comprehensive statistics, data types, quality metrics, and detailed column analysis including null values, duplicates, and data distribution

Convert TOML configuration format to JSON

Convert JSON data to TOML configuration format

Convert XML data to CSV format for spreadsheet applications

Convert CSV data to XML format for data interchange

Convert XML data to CSV format for spreadsheet applications and data analysis

Convert YAML format to XML format

Convert XML to YAML

Convert CSV to YAML

Convert YAML to CSV

Convert Interface Definition Language to JSON

Convert JSON to IDL

Convert .proto to JSON

Convert JSON to .proto

Convert audio files to Base64

Convert Base64 to audio files

Convert video files to Base64

Convert Base64 to video files

Generate PDF from HTML

Generate PDF from Markdown

Extract text from PDF

Convert CSV to Excel

Convert Excel to CSV

Convert text lists to CSV

Convert CSV to text lists

Analyze CSV data structure and quality

Merge multiple API responses with advanced strategies including merge, concat, intersection, and union operations

Convert between different data formats including JSON, YAML, CSV, XML, and TOML with bidirectional conversion support

Generate secure passwords with customizable options including length, character sets, and advanced security features

Decode and analyze JSON Web Tokens (JWT) with detailed claim analysis, validation, and security insights

Encode and decode URLs, HTML entities, Base64, and URI components with batch processing support

Scan websites for security vulnerabilities, SSL issues, headers, and potential threats with comprehensive security analysis

Compare two texts and visualize differences with line-by-line, word-by-word, or character-by-character analysis

Reverse input text

Convert text case (upper/lower/title)

Convert text to URL slug

Test regular expressions

Comprehensive text analysis with word count, reading time, readability metrics, and social media compatibility

Compare two texts and highlight differences with side-by-side or inline view

Remove HTML tags from text while preserving content and formatting options

Compare two HTML snippets and highlight differences

Convert slug to normal text

Show differences between texts

Merge two texts side by side

Compare two CSV files

Compare two JSON objects

Compare two XML documents

Compare two YAML files

Compare two JS files

Compare two CSS files

Compare two SQL queries

Parse vCard files

Parse iCal files

Select and copy emojis

Extract text from images

Split PDF into pages

Merge multiple PDFs

Merge multiple CSVs

Convert JSON to XML

Convert XML to JSON

Convert CSV to JSON

Convert JSON to CSV

Convert YAML to JSON

Convert JSON to YAML

Strip HTML tags

Escape text to HTML

Render Markdown to HTML

Convert HTML to Markdown

Convert environment variables between different formats: .env, JSON, YAML, Docker, Kubernetes, and more

Convert binary to decimal

Convert decimal to binary

Convert timestamps to dates

Convert RGB to CMYK

Convert decimal numbers to binary (base-2) format with step-by-step explanation

Convert images between formats: PNG, JPG, WebP, AVIF, GIF with quality control

Explain regex patterns

List all images on page

List all video sources

Convert octal to decimal

Convert decimal to octal

Convert numbers between bases

Convert SVG to PNG

Convert PNG to JPEG

Convert JPEG to PNG

Convert emojis to Markdown codes

Convert text to audio speech

Transcribe audio to text

Preview Excel files

Split CSV by row count

Encode data to Base64

Decode Base64 data

Convert image to Base64 string

Convert Base64 string to image

Percent-encode a URL

Percent-decode a URL

Convert HEX color to RGB

Convert RGB color to HEX

Encode HTML entities

Decode HTML entities

Encode JSON Web Tokens

Encode Unicode to Punycode

Decode Punycode to Unicode

Encode text as UTF-8

Decode UTF-8 text

Generate MD5 hash

Generate SHA-1 hash

Generate SHA-256 hash

Generate HMAC signature

Decode JSON Web Tokens

Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512, and CRC32 hashes with security analysis

Verify hash integrity by comparing generated hashes with expected values

Create and encode JSON Web Tokens with custom headers, payloads, and signatures

Generate SHA-512 hash for enhanced security and data integrity verification

Generate SHA-384 hash for balanced security and performance in cryptographic applications

Generate secure passwords with advanced options including presets, strength analysis, and bulk generation

Generate CSS Grid layout code with customizable rows, columns, and gap settings

Generate and parse cron expressions for scheduled tasks with human-readable descriptions

Generate realistic mock data for testing and development with customizable fields and output formats

Generate Docker Compose YAML files with multiple services, networks, and volumes configuration

Generate optimized multi-stage Docker configurations for modern applications with security best practices, distroless images, and multi-architecture support

Generate, decode, and validate JSON Web Tokens (JWT) with custom payload and configuration options

Generate CSS Flexbox layouts with visual controls for direction, alignment, spacing, and wrapping options

Generate comprehensive documentation for your code with JSDoc, Sphinx, or JavaDoc formats

Build complex SQL queries with visual controls for SELECT, INSERT, UPDATE, DELETE operations with joins, conditions, and optimization tips

Generate SSL certificates, CSRs, self-signed certificates, and Certificate Authority setups with OpenSSL commands

Generate OpenAPI 3.0 specifications with complete schemas, security, and examples for REST API documentation

Generate package.json files for Node.js projects with proper dependencies, scripts, and configurations for frontend, backend, CLI, and library projects

Generate Redis commands for various operations including strings, hashes, lists, sets, sorted sets, and key management

Generate GraphQL schemas with types, queries, mutations, and complete SDL definitions for API development

Generate database migration scripts for PostgreSQL, MySQL, SQLite, SQL Server, and Oracle with table creation, modifications, and indexes

Generate CDN links for popular JavaScript libraries and CSS frameworks with different formats and versions

Generate TypeScript interfaces from JSON data or create them manually with proper typing, optional fields, and documentation

Visual CSS Grid layout builder with predefined templates, custom positioning, and automatic code generation for responsive web design

Generate complete React components with TypeScript, hooks, styling, tests, and Storybook stories in seconds

Create complete HTML forms with validation, styling options, and custom fields for web development

Create comprehensive API documentation in HTML, OpenAPI, Markdown, or Postman format with interactive examples

Generate complete REST API server code with endpoints, middleware, authentication, and database integration for multiple frameworks

Generate complete package.json files with dependencies, scripts, and configuration for Node.js projects

Generate comprehensive webpack configurations for modern web development projects with TypeScript, React, Vue, SASS, and optimization support

Build, test, and analyze regular expressions with detailed explanations and pattern matching

Generate a random UUID

Generate a random number

Generate QR codes

Analyze and optimize images with compression, format conversion, and resizing recommendations

Resize, crop, and transform images with multiple scaling modes and format options

Generate placeholder text in words, sentences, or paragraphs with customizable options

Generate Markdown tables from CSV data or create empty tables

Generate random UUID v4 identifiers for databases, APIs, and distributed systems

Decode and read QR codes from images with support for various formats

Generate and validate cron expressions with human-readable descriptions

Generate regex from text

Create CSS gradients

Create browser favicons

Generate barcodes

Create HTML tables

Create vCard files

Create iCal events

Validate JSON against schema

Validate XML against XSD

Check UUID format

Validate email addresses with comprehensive format checking and RFC compliance analysis

Validate credit card numbers using the Luhn algorithm with card type detection and format analysis

Validate email addresses with comprehensive format checking and RFC compliance analysis

Validate TOML (Tom's Obvious Minimal Language) syntax and format

Validate XML documents against XSD schema definitions online

Check password strength and get security recommendations with detailed analysis

Find and extract values from JSON using JSONPath expressions with interactive explorer

Validate IPv4 and IPv6 addresses with format checking and network analysis

Check HTML for errors

Check CSS for errors

Lint JavaScript code

Lint CSS code

Lint HTML code

Detect JSON syntax errors

Detect XML syntax errors

Detect SQL syntax errors

Validate JSON Web Tokens

Validate CSV structure

Validate URL format, analyze URL components, and check for proper URL structure and syntax

Convert HEX color codes to RGBA format

Convert hex color codes to RGB, HSL, HSV and decimal formats with comprehensive color information

Convert HSV color values to RGB format

Generate harmonious color palettes using color theory with multiple algorithms and export options

Extract color palettes from images with hex codes and color analysis

List named CSS colors

Check WCAG contrast ratios

Convert RGB to HSL

Convert RGB to HSV

Convert hex to decimal

Convert decimal to hex

Convert RGBA to HEX

Convert HSL to RGB

Extract colors from images with format conversion

Perform advanced mathematical calculations with scientific functions

Perform simple arithmetic and basic mathematical calculations

Calculate Body Mass Index with health categories and recommendations

Calculate Basal Metabolic Rate using various formulas with TDEE and activity level analysis

Calculate daily caloric needs based on activity level, goals, and personal metrics with macronutrient breakdown

Calculate loan payments, total interest, and amortization schedules for various payment frequencies

Calculate mortgage payments including taxes, insurance, PMI, and HOA fees with affordability analysis

Convert between length units

Convert between weight units

Convert between volume units

Convert between temperature units

Convert between speed units

Convert between area units

Convert between pressure units

Convert between energy units

Convert between power units

Convert between frequency units

Convert between data storage units

Parse browser user-agent strings to identify browser, OS, and device information

Analyze and test REST API endpoints with detailed request/response analysis and code generation

Look up HTTP status codes with detailed explanations, use cases, and technical guidance

Parse and analyze browser user-agent strings to identify browser, OS, and device information

Analyze URLs and extract components: protocol, domain, path, query parameters

Inspect fonts on a page

Test responsive breakpoints

Overlay a design grid on page

Measure pixels on screen

Create short URLs

Expand shortened URLs

Parse robots.txt files

Parse sitemap XML

Extract meta tags from HTML

List all hyperlinks on page

Parse document.cookie string

Convert JSON to cookie string

View localStorage entries

View sessionStorage entries

Get geolocation from IP

Lookup domain WHOIS information including registrar, registration date, and contact details

Check and analyze HTTP status codes with detailed explanations and troubleshooting information

A simple and intuitive API testing tool for REST APIs with request/response analysis

DNS record lookup tool to query DNS records including A, AAAA, MX, CNAME, TXT, and NS records

Convert times between different time zones around the world

Convert dates to epoch time

Reformat date strings

Export dates to .ics format

Import .ics files

Convert between time units

Generate SQL queries with visual interface

Benchmark performance of code and algorithms