Developer Tools
JSON, encoding, hashing, formatting and other everyday tools for developers.
52 free tools · No sign-up required · Runs in your browser
JSON Formatter & Validator
Format, beautify and validate JSON instantly with clear error locations.
JSON to CSV Converter
Convert a JSON array of objects into a downloadable CSV spreadsheet.
CSV to JSON Converter
Turn a CSV file or pasted spreadsheet data into structured JSON.
JSON to XML Converter
Convert JSON data into well-formed XML markup.
XML to JSON Converter
Convert XML documents into clean, structured JSON.
Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to plain text.
JWT Decoder
Decode a JSON Web Token to inspect its header, payload and expiry.
UUID / GUID Generator (v4)
Generate cryptographically random UUID v4 identifiers instantly.
URL Encode / Decode
Percent-encode or decode URLs and query string parameters.
HTML Encode / Decode
Escape text into safe HTML entities or decode entities back to text.
SQL Formatter / Beautifier
Beautify messy SQL queries with proper indentation and keyword casing.
Regex Tester & Debugger
Test regular expressions live against sample text with match highlighting.
Cron Expression Generator
Build and understand cron expressions with a simple visual form.
HTML / CSS / JS Minifier
Shrink HTML, CSS or JavaScript by removing whitespace and comments.
YAML ↔ JSON Converter
Convert YAML configuration files to JSON and back, instantly.
SHA256 Hash Generator
Generate a SHA-256 hash from any text or file, instantly and privately.
MD5 Hash Generator
Generate an MD5 hash from text or a file instantly in your browser.
Curl to Fetch / Axios Converter
Convert a curl command into equivalent JavaScript fetch or Axios code.
GraphQL Query Formatter
Beautify GraphQL queries and mutations with clean, consistent indentation.
Chmod Calculator (Linux Permissions)
Convert checkbox permissions into chmod octal and symbolic notation.
HTACCESS Redirect Generator
Generate Apache .htaccess redirect rules without memorizing syntax.
Diff Checker (Text/Code Comparison)
Compare two blocks of text or code and see exactly what changed.
HTML Formatter / Beautifier
Format, beautify and indent messy HTML markup with custom indentation rules.
CSS Formatter / Beautifier
Format, beautify and organize minified CSS stylesheets with custom spacing.
JavaScript Formatter / Beautifier
Format and beautify messy or minified JavaScript code with clean block indentation.
TypeScript Formatter
Format TypeScript code, interfaces, type aliases, and generic definitions cleanly.
JSON Schema Validator
Validate JSON documents against JSON Schema definitions with detailed error paths.
JSON Path Tester
Test and evaluate JSONPath expressions against complex JSON documents in real-time.
XML Formatter / Beautifier
Format, beautify and indent XML documents with custom spacing and attribute preservation.
XML Validator
Validate XML documents for well-formedness and detect syntax errors with line/column pointers.
XPath Tester
Evaluate XPath queries on XML documents and inspect matched nodes and attributes.
HTML Validator
Inspect HTML markup for unclosed tags, accessibility gaps, duplicate IDs, and structure errors.
CSS Selector Tester
Test CSS selectors against HTML markup and inspect matching elements interactively.
JavaScript Escape / Unescape
Escape and unescape JavaScript strings, quotes, newlines, tabs, and special characters.
URL Parser
Parse URLs into protocol, host, port, path, query parameters, and hash fragments.
User-Agent Parser
Parse User-Agent strings into browser, version, operating system, and device information.
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and convert dates to timestamps.
Unix Timestamp Generator
Generate live ticking Unix timestamps in seconds, milliseconds, and relative offsets.
HTTP Headers Parser
Parse raw HTTP request and response headers into categorized tables with security checks.
HTTP Request Generator
Build HTTP requests and generate copy-ready code snippets in Fetch, Axios, cURL, and Python.
API Endpoint Tester
Test REST API endpoints directly in your browser with latency tracking and payload inspection.
Git Command Generator
Generate Git terminal commands for branching, rebasing, undoing commits, and stashing.
Gitignore Generator
Generate comprehensive .gitignore files for Node.js, Python, React, Go, Docker, and IDEs.
Git Commit Message Generator
Generate standardized Conventional Commit messages with types, scopes, and breaking changes.
README Generator
Generate professional GitHub README.md files with badges, tech stack, and installation steps.
Dockerfile Generator
Generate multi-stage, production-optimized Dockerfiles for Next.js, Node.js, Python, and Go.
Docker Compose Generator
Generate multi-container docker-compose.yml setups with PostgreSQL, Redis, MySQL, and Nginx.
Nginx Config Generator
Generate production-ready Nginx server configurations for reverse proxies, SPAs, and static sites.
GitHub Actions Workflow Generator
Generate CI/CD GitHub Actions workflow YAML files for testing, linting, and deployment.
Kubernetes YAML Generator
Generate Kubernetes Deployment, Service, and Ingress manifests with health probes and resource limits.
Package.json Generator
Generate valid package.json manifests with scripts, dependencies, TypeScript, and ESLint configs.
Environment Variables Generator / Formatter
Format, sort, and sanitize .env files and generate safe .env.example templates with masked secrets.
Other Categories
SEO & Webmaster Tools
Meta tags, sitemaps, schema markup and other tools to help your site rank.
Image & Graphics Tools
Compress, convert, resize and edit images entirely in your browser.
Text & Word Tools
Count, clean, convert and compare text instantly.
PDF Tools
Merge, split, compress and convert PDF files without uploading them anywhere unsafe.
AI Utilities
Prompt builders and content generators to speed up your writing workflow.
Color & UI Tools
Pick colors, build gradients, shadows and check accessibility contrast.
Math & Converters
Calculators and unit converters for everyday math problems.
Security & Privacy Tools
Generate strong passwords and hashes without sending your data anywhere.