JSON
Converter
Toolkit
A collection of fast, private, browser-only converters for developers. Paste JSON, get YAML, CSV, XML, Prisma schemas, SQL — instantly. Transform, encode, decode, and convert data formats without uploading to any server.
All converters
Every tool runs entirely in your browser. Nothing is sent to a server. Click any converter to start transforming your data immediately.
JSON → YAML
Convert JSON to clean YAML and back. Handles nested objects, arrays, and special strings.
JSON → CSV
Turn JSON arrays into CSV spreadsheets and parse CSV back to JSON with type inference.
JSON → XML
Generate well-formed XML from JSON and parse XML tags back to JSON objects.
JSON → Prisma
Scaffold Prisma schema models from a JSON payload with inferred types and relations.
JSON → PostgreSQL
Generate batch INSERT statements from JSON and parse INSERT SQL back to JSON.
Word Counter
Count words, characters, sentences, and paragraphs in any text. Great for essays and content writing.
UUID to Base64
Encode UUIDs to compact Base64 strings and decode Base64 back to standard UUID format.
URL Encode / Decode
Percent-encode special characters in URLs and decode encoded strings back to plain text.
String to Base64
Encode any string to Base64 and decode Base64 back to its original text instantly.
Remove Duplicate Lines
Paste any text and instantly strip duplicate lines, keeping only unique entries.
Markdown to HTML
Render Markdown to clean HTML and convert HTML tags back to Markdown syntax.
Case Converter
Transform text between camelCase, snake_case, PascalCase, kebab-case, and more.
Date to Unix Timestamp
Convert human-readable dates to Unix timestamps and timestamps back to readable dates.
JSON to Prisma Schema
Generate a full Prisma schema file from a JSON object with inferred field types and models.
JSON to TypeScript Interface
Instantly generate TypeScript interfaces from any JSON payload with nested type support.
Comprehensive Data Format Conversion Tools
Our JSON Converter Toolkit includes 15+ essential tools for developers, data engineers, and content creators. From JSON format conversions (YAML, CSV, XML) to code generation (Prisma schemas, TypeScript interfaces), we've covered every common data transformation need.
Each converter is designed for speed and reliability. Convert between formats bidirectionally, encode/decode strings, count words, generate database schemas, and manipulate text — all without leaving your browser. Perfect for API development, database migrations, documentation, and daily developer workflows.
Whether you're a full-stack developer, data scientist, or technical writer, our free converter toolkit eliminates the need for multiple specialized tools. Work with JSON, YAML, CSV, XML, SQL, Markdown, Base64, UUID, URLs, timestamps, and more in a single unified platform.
Why use this toolkit?
Instant, no waiting
All conversions run in your browser via pure JavaScript — zero server round-trips, zero latency.
Your data stays yours
Nothing is uploaded anywhere. Paste real API responses, database dumps, or secrets without worry.
Bidirectional by default
Every converter works both ways. Convert JSON → YAML, then flip back with a single click.
Developer-First Features
Multiple Data Formats
Support for JSON, YAML, CSV, XML, SQL, Markdown, Base64, UUID, and more.
Smart Type Inference
Automatic type detection for database schemas, TypeScript interfaces, and data mapping.
No Dependencies
100% client-side JavaScript with no external API calls or server dependencies.
Batch Processing
Handle large files and bulk conversions efficiently in your browser.
Copy & Paste Ready
All outputs are formatted and ready to paste directly into your projects.
Always Free
No premium features, no ads, no paywalls. Everything is completely free forever.
Frequently Asked Questions
Is JSON Converter Toolkit really free?
Yes, 100% free. No sign-ups, no premium tiers, no ads. Our toolkit is completely free forever.
Are my conversions private?
Absolutely. All conversions run in your browser with zero server uploads. Your data stays on your device.
Can I use this offline?
Yes, once loaded, the toolkit works offline. No internet connection required for conversions.
What formats are supported?
We support JSON, YAML, CSV, XML, Prisma schemas, TypeScript interfaces, PostgreSQL, Base64, URLs, Unix timestamps, Markdown, case conversion, and more.
Can I convert large files?
Yes, the toolkit handles large files efficiently. Your browser's capabilities set the limit.
Start Converting Today
Transform your data formats instantly with our free, privacy-first converter toolkit. No sign-ups, no limits, no server uploads.
Start Converting Now