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All core tools are free forever. No accounts required.
Bun Tools
Analyze bundles, benchmark performance, debug errors, and migrate from Node.js
Bundle Analyzer
Visualize your Bun bundle size with interactive treemap
Benchmark
Compare Bun vs Node.js performance side-by-side
Error Explainer
Understand and fix Bun errors instantly
Lockfile Visualizer
Visualize your bun.lockb dependency tree
Badge Generator
Create README badges for Bun projects
Migration Helper
Check Node.js project compatibility with Bun
Node.js Tools
Debug errors, analyze compatibility, optimize Docker, and manage dependencies
Error Explainer
Understand and fix Node.js errors instantly
ESM/CJS Analyzer
Check package.json for module compatibility issues
Lockfile Visualizer
Analyze package-lock.json dependencies
Package Compatibility
Check npm packages for Node.js version compatibility
Dockerfile Optimizer
Optimize Dockerfiles for Node.js apps
JSON Tools
Format, validate, diff, query, and convert JSON to TypeScript
Visual Builder
Build JSON structures with drag-and-drop
Diff & Merge
Compare and merge JSON objects side-by-side
Formatter
Format, beautify, and validate JSON
Schema to Mock
Generate realistic mock data from JSON Schema
Path Tester
Test JSONPath expressions with live results
To TypeScript
Convert JSON to TypeScript interfaces
To CSV
Export JSON arrays to CSV format
To SQL
Generate SQL from JSON data
Utilities
Essential tools for encoding, hashing, timestamps, and more
Base64 Encoder
Encode and decode Base64 strings
UUID Generator
Generate UUIDs (v1, v4, v7)
Hash Generator
MD5, SHA-1, SHA-256, SHA-512 hashes
Timestamp Converter
Convert Unix timestamps to dates
Password Generator
Secure passwords and passphrases
URL Encoder
Encode and decode URL components
JWT Decoder
Decode and inspect JWT tokens
Regex Tester
Test regular expressions live
Text & Code
Text manipulation, code formatting, and developer utilities
Lorem Ipsum
Generate placeholder text
Word Counter
Count words, characters, sentences
Case Converter
Convert text between cases
Text Diff
Compare two texts side by side
YAML ↔ JSON
Convert between YAML and JSON
SQL Formatter
Format and beautify SQL queries
Cron Builder
Build and parse cron expressions
.env Manager
Compare and merge environment files
cURL Converter
Convert cURL commands to code
Markdown Viewer
Preview Markdown with live rendering