💻 Developer Tools
JSON, code formatting, and dev utilities
JSON Formatter
Beautify, minify, and validate JSON data with syntax highlighting and tree view.
Regex Tester
Test regular expressions in real-time with highlighting and explanation.
UUID Generator
Generate Version 1 (time-based) and Version 4 (random) UUIDs in bulk.
JWT Inspector & Decoder
Decode, verify signatures (HS256), and analyze JSON Web Tokens for security risks.
SQL Formatter
Format and beautify SQL queries. Supports standard SQL, PostgreSQL, MySQL.
HTML Preview
Real-time HTML, CSS, and JavaScript playground/editor with live preview.
Feature Detector
Check which web APIs and permissions (Camera, Mic, Geo) are supported and active in your browser.
Storage Viewer
View, edit, and delete LocalStorage, SessionStorage, and Cookies directly in your browser.
Screen Resolution
Test and simulate different screen resolutions and viewports.
JSON to CSV
Convert JSON arrays or objects into downloadable CSV files with nested key flattening.
CSV to JSON
Parse CSV text or files into structured JSON with header detection.
JSON to YAML
Bidirectional JSON ↔ YAML converter with copy support.
JSON Diff Viewer
Compare two JSON objects side by side with a visual diff of additions, removals, and changes.
JSON to TypeScript
Auto-generate TypeScript interfaces and types from JSON data.
JSON Path Finder
Query JSON data using dot-notation paths with array indexing support.
YAML Formatter
Format, validate, and normalize YAML with consistent indentation.
TOML Formatter
Format and validate TOML configuration files with error detection.
Cron Expression Explainer
Understand cron expressions in plain English with next-run predictions and presets.
HTTP Status Reference
Searchable, color-coded reference of all HTTP status codes with descriptions.
Unix Timestamp Converter
Convert between Unix epoch timestamps and human-readable dates with relative time.
Diff Patch Generator
Generate unified diff patches from two text inputs with syntax-highlighted output.
htaccess Generator
Visual builder for Apache .htaccess rules: redirects, rewrites, headers, caching, gzip.
Git Command Builder
Visually build complex Git commands with option toggles and copy-to-clipboard.
CSS Minifier
Compress your CSS code to reduce file size and improve website loading speed.
HTML Minifier
Clean and compress HTML markup to optimize your web pages for faster delivery.
JS Minifier
Minify JavaScript code to reduce payload size and enhance performance.
Error Message Analyzer
Paste cryptic stack traces to get actionable fixes using an AI analyzer.
Log Parsing & Errors
Upload and visualize large log files securely in your browser to spot errors quickly.
OpenAI Playground
Experiment with complete control over OpenAI AI chat endpoints natively via browser.