JSON Formatter Online
Format, diff & fix JSON without uploading anything
Start new thread
AJIT SINGH RATHORE

JSON Formatter Online - Format, diff & fix JSON without uploading anything

by•
Toolkernel JSON Formatter is a free, privacy-first JSON tool that runs entirely in your browser. ✨ Format & beautify minified JSON with syntax highlighting ✅ Validate syntax with exact line & column error positions ⚖️ Compare two JSON files side-by-side with smart diff 🔧 Auto-fix common errors (trailing commas, missing quotes) 📦 Minify JSON for production 🔄 Generate TypeScript interfaces from JSON 🔍 Search within large JSON structures

Add a comment

Replies

Best
AJIT SINGH RATHORE
Maker
📌
Hey hunters! 🎯 As a developer, I format JSON dozens of times a day—API responses, config files, debugging payloads. But I never felt comfortable pasting production data into online tools. So I built a JSON formatter that processes everything client-side. Zero data transmission. Features: → Format/beautify with customizable indentation → Validate with precise error locations → Compare two JSONs with semantic diff → Auto-fix trailing commas, missing quotes and common json problems → Generate TypeScript interfaces → Minify for production What JSON workflow problems do you face? I'm actively adding features based on feedback!