JSON Formatter
Format, validate, and minify JSON with syntax highlighting and tree view
JSON Viewer
Interactive JSON tree viewer with collapsible nodes and syntax highlighting
JSON Editor
Edit JSON with auto-complete, validation, and tree + code modes
JSON Validator
Validate JSON syntax with detailed error messages and line numbers
JSON Path Finder
Navigate JSON tree visually and get JSONPath queries for any value
JSON Diff Tool
Visual JSON comparison with highlighted additions, removals, and changes
JSON to CSV
Convert JSON arrays to CSV with delimiter options and data preview
JSON to TypeScript
Convert JSON objects to TypeScript interfaces and types automatically
JSON to XML Converter
Convert between JSON and XML with configurable root element
JSON to YAML
Convert JSON to YAML format with proper indentation
JSON/YAML Converter
Bidirectional JSON and YAML conversion tool
JSON Schema Generator
Auto-generate JSON Schema from JSON with Draft 4/6/7 support
JSON Schema Validator
Validate JSON against a schema with detailed error reporting
JSON Tree Visualizer
Visualize JSON structure as an interactive expandable tree
JSON to Form Generator
Generate HTML forms from JSON schema automatically
JSON to HTML Table
Convert JSON arrays to styled HTML tables instantly
JSON Resume Builder
Build resumes in JSON Resume format with live preview
Regex Tester
Test regular expressions with real-time highlighting and match details
Regex Builder
Interactive regex pattern builder with visual blocks and live testing
Regex Playground
Full-featured regex testing environment with pattern library
Regex Pattern Generator
Generate common regex patterns for emails, URLs, dates, IPs
SQL Formatter
Format and beautify SQL queries with syntax highlighting
SQL to MongoDB
Convert SQL queries to MongoDB aggregation pipeline syntax
CSS Beautifier
Beautify or minify CSS with syntax highlighting and line numbers
CSS Minifier
Minify CSS with options for removing comments and whitespace
CSS to Tailwind
Convert vanilla CSS to Tailwind CSS utility classes
CSS Selector Tester
Test CSS selectors against HTML with visual highlighting
CSS Specificity Calculator
Calculate and compare CSS selector specificity rankings
CSS Unit Converter
Convert between px, rem, em, vw, vh, % and pt
CSS Variables System
Generate CSS custom properties for colors, typography, spacing
CSS Variable Visualizer
Visualize and edit CSS custom properties with live preview
HTML/CSS/JS Minifier
Minify HTML, CSS, and JavaScript with size reduction stats
JavaScript Minifier & Beautifier
Minify JS to shrink file size or beautify minified code with clean indentation. Runs entirely in your browser.
HTML Formatter
Format and beautify HTML with proper indentation
HTML Beautifier
Beautify HTML with configurable indent options
HTML Live Preview
Live HTML/CSS/JS editor with instant preview and templates
HTML Entity Encoder
Encode text to HTML entities and decode entities back
HTML Entities Encoder
Encode and decode named and numeric HTML entities
HTML Table Generator
Visual table editor with click-to-edit cells and CSV import
HTML to Markdown
Convert HTML to clean Markdown with GFM support
HTML to JSX Converter
Convert HTML to JSX for React components
HTML to Image
Capture HTML elements as PNG or JPEG images
HTML Email Builder
Build responsive HTML email templates with section editor
XML Formatter
Format, beautify, and validate XML with syntax highlighting
XML to JSON
Convert XML to JSON preserving attributes and structure
XML Validator
Validate XML syntax with detailed error reporting
YAML/JSON Converter
Convert between YAML and JSON with syntax validation
YAML to JSON
Convert YAML to JSON format instantly
YAML Formatter
Format and validate YAML with proper indentation
YAML Editor
Full-featured YAML editor with validation and syntax highlighting
JavaScript Minifier
Minify and beautify JavaScript with ES6+ support
JavaScript Formatter
Format and beautify JavaScript code with customizable options
TypeScript Playground
Interactive TypeScript type playground with built-in challenges
Markdown Preview
Write Markdown and see rendered HTML in real-time
Markdown to HTML
Convert Markdown to clean HTML with GFM support
Markdown Table Generator
Create and edit Markdown tables visually with CSV import
Markdown Table Builder
Visual Markdown table builder with alignment controls
Markdown Editor
Full-featured Markdown editor with toolbar and preview
Markdown Slides
Create presentation slides from Markdown content
Diff Checker
Compare two texts side by side with word-level highlights
Code Diff Viewer
Side-by-side code comparison with syntax highlighting
Text Diff
Quick text comparison with inline diff highlighting
Text Diff Viewer
Detailed text diff with line-by-line comparison
Git Diff Viewer
View and parse git diff output with syntax highlighting
CSV to JSON
Parse CSV with headers to JSON with custom delimiters
CSV Spreadsheet Editor
Edit CSV data in a spreadsheet grid with sort and filter
CSV Formatter
Format and clean CSV data with column alignment
cURL to Code
Convert cURL commands to JS, Python, PHP, Go, Ruby, Java, Rust
cURL Command Builder
Build cURL requests with methods, headers, authentication, and request bodies
API Request Builder
Build and test HTTP requests with custom headers and auth
API Tester
REST client for testing API endpoints with response viewer
API Mock Server
Create mock API endpoints for testing and development
HTTP Mock Server
Define mock HTTP responses and inspect request scenarios in the browser
Webhook Tester
Test and debug webhook payloads with request inspection
GraphQL Playground
Interactive GraphQL IDE with schema exploration
OpenAPI Viewer
Inspect OpenAPI documents as readable endpoint documentation
HTTP Status Codes
Complete HTTP status code reference with search and filter
HTTP Header Analyzer
Analyze HTTP response headers with security recommendations
MIME Type Lookup
Find MIME types by extension and common file formats
Responsive Tester
Preview URLs at different viewports with device presets
Tool Pipeline Builder
Chain tools together like Unix pipes. World-first.
Code Screenshot
Create beautiful code screenshots with themes and customization
ASCII Art Generator
Convert text and images to ASCII art with font styles
NPM Package Analyzer
Analyze npm packages for size, dependencies, and versions
Table of Contents
Generate table of contents from Markdown headings
Mermaid Diagram Editor
Create flowcharts, sequence diagrams, Gantt charts with live preview and export
JSON Converter & Formatter
Format, validate, minify and convert JSON — between JSON and YAML, CSV, XML and plain text — with syntax checking and one-click copy.
Base64 Encoder
Encode and decode text or files to Base64 with drag and drop
Image to Base64
Convert images to Base64 data URIs for HTML/CSS
Base64 Image Encoder
Drag and drop images to convert to Base64 data URIs
URL Encoder
Encode and decode URLs with full URL parser and query builder
Multi-Format Encoder
Swiss army knife: Base64, URL, HTML, Unicode, Hex, Binary, ROT13
Number Base Converter
Binary, Octal, Decimal, Hex conversion with BigInt support
Base Number Converter
Convert between decimal, binary, hexadecimal and octal in real time with big-number support
Data URL Generator
Convert files to data: URLs with size comparison
SVG to CSS
Convert SVG code to CSS background-image with URL encoding
SVG to PNG
Convert SVG vector graphics to PNG raster images
Code Language Converter
Convert code between 10 programming languages with syntax highlighting
.htaccess Generator
Generate Apache .htaccess rules for redirects and security
Crontab Generator
Build cron expressions visually with presets and validation
Cron Expression Builder
Visual cron builder with human-readable descriptions
Cron Expression Generator
Generate cron expressions with next 5 execution times
Cron Job Monitor
Monitor and track cron job execution history
.gitignore Generator
Generate .gitignore files for Node.js, Python, Java, Go, React
Git Command Builder
Interactive git command generator with flag toggles
GitHub README Stats
Generate GitHub README stats badges and cards
Changelog Generator
Generate changelogs from git commits in Keep a Changelog format
README Generator
Interactive README.md builder with badges and templates
Docker Compose Generator
Visual Docker Compose builder with service presets
Nginx Config Generator
Generate nginx server blocks for static, proxy, SSL
ESLint Config Generator
Build .eslintrc.json visually with Airbnb, Standard presets
tsconfig.json Generator
Interactive TypeScript config builder with option explanations
package.json Generator
Scaffold package.json with scripts, dependencies, license
EditorConfig Generator
Build .editorconfig files with per-filetype indent rules
ENV File Editor
Edit .env files with validation and variable grouping
Keyboard Tester
Test all keyboard keys with visual key map
Screen Resolution
Check your screen resolution, DPI, and viewport size
Data Size Converter
Convert between bytes, KB, MB, GB, TB and PB instantly. Supports binary (1024) and decimal (1000) storage units.
Two's Complement Calculator
Convert decimal numbers to and from two's complement binary for 8, 16 and 32-bit systems — with step-by-step workings and range checking.
PC Bottleneck Calculator
Check whether your CPU or GPU is the bottleneck in your gaming PC — calculate the CPU/GPU balance score and get upgrade recommendations.
PPI Calculator
Calculate pixels per inch (PPI) and pixel pitch for any display — from resolution and screen size — with dot pitch and total pixel count.
PSU Wattage Calculator
Estimate your PC's power supply wattage — add CPU, GPU, drives and peripherals, get a recommended PSU with headroom for overclocking.
RAID Calculator
Calculate usable storage capacity and fault tolerance for RAID 0, 1, 5, 6, 10 and JBOD — enter drive count and size to see total capacity and minimum drives.
Screen Size Calculator
Calculate the physical dimensions of any screen from its diagonal size and aspect ratio — width, height, area and viewing distance recommendations.
DPI Converter
Convert between pixels, DPI/PPI, and physical print size. Find print dimensions, resolution, and megapixels for any image.
Keycode Viewer
Press any key to see its event.key, event.code and event.keyCode — essential for keyboard event handling and game development.
Semver Calculator
Compare, validate and bump semantic version numbers (MAJOR.MINOR.PATCH) with pre-release and build metadata support.
Dockerfile Generator
Generate a production-ready Dockerfile in seconds — pick a base image (Node, Python, Nginx, Go, Java, Rust), set ports, env vars and healthcheck.
Git Cheat Sheet
Searchable reference of 120+ Git commands organized by workflow — setup, staging, branching, merging, stashing and history rewriting.
License Chooser
Compare MIT, Apache 2.0, GPL, BSD and more — then generate the full LICENSE file with your name and year in one click.
Commit Message Generator
Build clean conventional commits with type, scope, breaking changes and issue references — copy and commit.
URL Parser & Extractor
Split any URL into protocol, host, port, path, query parameters and hash — edit parameters and rebuild a clean URL.
.env Validator
Lint dotenv files for malformed lines, unclosed quotes, duplicate keys and missing required variables — with fix suggestions.
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates with live clock, relative time and timezone support — built for developers.
PWA Manifest Generator
Build a complete web app manifest.json with icons, display modes, theme colors and shortcuts — with a live installed-app preview.
GitHub Actions Generator
Generate production-ready GitHub Actions CI/CD workflows — jobs, triggers, caching and secrets for Node, Python, Go, Java and Docker.
SSH Config Generator
Build ~/.ssh/config entries with host aliases, custom ports, keys and agent forwarding. Copy or download your SSH config instantly.
Terraform Generator
Write infrastructure-as-code for AWS, Azure and GCP — EC2, S3, RDS, VPC and EKS. Copy or download the .tf file instantly.
Systemd Service Generator
Create .service unit files with working directory, environment variables, restart policies, limits and hardening options.
Makefile Generator
Scaffold Makefiles for Node, Python, Go, C/C++ and Docker with build, test, lint and clean targets. Copy or download instantly.
K8s YAML Generator
Build Kubernetes Deployment, Service, ConfigMap and Secret manifests with replicas, ports, resources, probes and labels.
Prettier Config Generator
Build a .prettierrc (JSON, YAML or JS) with print width, tabs, quotes, semicolons, trailing commas and plugins.
Dependabot Config Generator
Create .github/dependabot.yml with ecosystem presets, schedule, labels, reviewers and versioning strategy.
NPM Trends
Compare npm package download trends side by side — daily, weekly, monthly or yearly. Real counts from the npm registry API.
CSV to JSON Converter
Convert tabular data between CSV and JSON in both directions, with custom separators, quoted-field handling and a live table preview.
HTML Preview
Write HTML, CSS and JavaScript and watch it render live in a sandboxed preview. Includes demo templates, copy and download.
Email Validator
Check email addresses for syntax, domain format, common typos, disposable domains and role-based inboxes — batch check a whole list at once.
Base64 Encoder & Decoder
Encode text or files to Base64 and decode it back — UTF-8 safe, URL-safe alphabet and data-URI support, all in your browser.
JavaScript Minifier
Safely minify JavaScript — comments and whitespace removed while strings, template literals and regexes stay intact, with size savings stats.
Punycode Converter
Convert Unicode domains and emails to xn-- Punycode and back — RFC 3492 compliant with per-label encoding.
TSV Converter
Convert TSV data to CSV, JSON, Markdown, HTML or SQL with proper quoted-field parsing and a live preview.
SQL Injection Checker
Detect SQL injection patterns in your text or payloads — common attack signatures, comment markers, UNION queries and risk scoring.
XSS Sanitizer
Sanitize HTML against cross-site scripting — strip dangerous tags, attributes and javascript: URLs with a whitelist allowlist.
IP Address Generator
Generate random valid IPv4 and IPv6 addresses — bulk mode, CIDR presets and subnet-friendly output.
RSS Feed Generator
Generate RSS 2.0 and Atom feed XML from your posts — custom metadata, per-item descriptions and enclosure support.