Developer Tools
Indispensable utilities for software engineers, frontend creators, and DevOps teams. Validate and format JSON/XML/YAML, decode JWT tokens without exposing secrets, test regex patterns in real time, and generate cryptographically secure UUIDs.
Available Developer Tools (42)
JSON Formatter & Validator
Format, validate, beautify, and minify JSON with syntax highlighting.
Base64 Encoder & Decoder
Encode text and files to Base64, or decode Base64 strings back to original format.
JWT Decoder
Decode JSON Web Tokens to inspect Header, Payload, and expiration timestamps.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 cryptographic checksums.
UUID / GUID Generator
Generate cryptographically secure Version 4 UUIDs in bulk.
Password Generator
Generate ultra-secure, high-entropy random passwords with custom rules.
Regex Tester & Cheat Sheet
Test regular expressions in real-time with capture groups and match highlights.
Unix Timestamp Converter
Convert Unix epoch timestamps (seconds/milliseconds) to human-readable dates.
URL Encoder & Decoder
Encode and decode URLs and query parameters for safe web transmission.
Markdown Editor & Previewer
Live split-pane Markdown editor with real-time HTML preview and export.
JSON Validator & Linter
Validate JSON syntax with precise line and column error indicators and autofix suggestions.
JSON Minifier & Compressor
Strip whitespace, linebreaks, and indentation to compress JSON payloads for API transmission.
JSON Diff & Compare
Compare two JSON payloads side-by-side with color-coded additions, deletions, and modifications.
JSON to TypeScript Interface
Convert JSON objects into clean, type-safe TypeScript interfaces and type definitions.
JSON Schema Generator
Generate Draft-07 and 2020-12 compliant JSON Schema definitions from JSON payloads.
XML Formatter & Beautifier
Format and indent XML, SOAP, and SVG markup with clean 2 or 4 space indentation.
XML Validator & Syntax Checker
Validate XML syntax, check well-formedness, and locate unclosed tags with line error alerts.
YAML Formatter & Beautifier
Format, beautify, and validate YAML configurations for Kubernetes, Docker Compose, and CI/CD.
YAML to JSON Converter
Convert YAML configuration files into structured JSON format instantly.
JSON to YAML Converter
Convert JSON payloads into clean, readable YAML configurations.
HTML Formatter & Beautifier
Format, indent, and clean messy HTML markup with custom indentation and tag rules.
HTML Minifier
Minify HTML code by stripping comments, whitespace, and empty lines to speed up web pages.
CSS Formatter & Beautifier
Beautify and format minified CSS stylesheets with clean rule indentation and line breaks.
CSS Minifier
Compress CSS stylesheets by removing whitespace, comments, and redundant semicolons.
JavaScript Minifier
Compress JavaScript code by removing comments, whitespace, and formatting to reduce script weight.
Cron Expression Generator
Build standard 5-part and 6-part cron expressions visually with minute, hour, day, and month pickers.
Cron Expression Parser
Convert confusing cron expressions into clear, plain English human descriptions with upcoming run times.
SQL Formatter & Beautifier
Format and indent complex SQL queries with uppercase keyword capitalization and clean clause alignment.
SQL Minifier
Compress SQL queries into a single line by removing comments, indentation, and extra whitespace.
HTTP Status Code Directory & Lookup
Quickly lookup HTTP status codes (1xx, 2xx, 3xx, 4xx, 5xx) with RFC definitions and debugging tips.
cURL Command Generator
Generate syntax-highlighted cURL commands from URL, HTTP method, headers, and request body.
cURL to Code Converter (Fetch, Python, Go, Rust)
Convert cURL command syntax to JavaScript Fetch, Node.js, Python Requests, Go, Rust, and PHP code snippets.
JSON to TypeScript Interface Generator
Generate clean, type-safe TypeScript interfaces, types, and schemas directly from raw JSON data.
HTML Entity Encoder & Decoder
Encode and decode special characters, symbols, and HTML entities to prevent XSS and rendering bugs.
CSS Minifier & Beautifier
Minify CSS stylesheets to reduce bandwidth and load times, or beautify minified CSS with clean indentation.
Dockerfile & Container Generator
Generate production-ready, multi-stage Dockerfiles and docker-compose.yml files for Node, Python, Go, and Rust.
Chmod Permissions Calculator
Calculate Linux and UNIX file permissions with interactive visual checkboxes, Octal numbers (e.g. 755), and Symbolic codes.
.htaccess Generator & Redirect Maker
Generate secure Apache .htaccess configuration files for 301 redirects, HTTPS enforcement, and security headers.
Git Command Generator & Quick Reference
Find and generate exact Git commands for rebases, undoing commits, cherry-picking, and branch management.
UUID v4 Bulk Generator
Generate 1 to 10,000 cryptographically secure UUID v4 identifiers using browser Web Crypto with uppercase, lowercase, and no-hyphen options.
NanoID Generator & Collision Calculator
Generate secure, compact, URL-friendly unique string IDs with custom lengths and alphabets, including estimated collision probability.
Base64 Data URI Converter (Images & Fonts)
Convert images, SVGs, and files into inline CSS and HTML Base64 Data URIs with instant copy for embeds.
Explore Other Categories
Image Tools
Compress, resize, convert, crop, and optimize images locally in your browser.
PDF Tools
Merge, split, rotate, convert, and organize PDF documents securely on your device.
SEO Tools
Preview SERP listings, analyze keyword density, generate robots.txt, and build Schema markup.
Text Tools
Count words and characters, convert letter cases, clean duplicate lines, and compute diffs.