# JSONDelta

> JSONDelta is a free, privacy-first, browser-based developer toolkit with 30+ tools for JSON, HTML, cryptography, data conversion, and automation. No signup. No install. All processing happens locally in the browser.

## Pages

- [Home / JSON Tools](https://jsondelta.com/): JSON Compare & Diff, Bulk Compare, JSON Formatter & Validator, JSON Merge, JSON Query, JSON Graph Visualizer, JSON Anonymizer, JSON Performance Analyzer, CSV↔JSON, XML↔JSON, YAML/TOML/INI converters, Code Generator (20+ languages), Minifiers, Cryptography (hash, HMAC, AES encryption), Unit Converters, Timestamp Converter, Base64, JWT Debugger, Random Generators.
- [JSON Editor](https://jsondelta.com/json-editor): Full-featured Monaco-based JSON editor with format, validate, minify, and a built-in JSON Compare tab.
- [HTML Editor](https://jsondelta.com/html-editor): Advanced HTML/CSS/JS editor with live preview, Chrome DevTools-style inspector (Styles, Box Model, Computed, DOM tree, Classes, Content), responsive viewport toggles, template library, CDN picker, and live console.
- [Swagger / OpenAPI Editor](https://jsondelta.com/swagger): Edit and preview OpenAPI YAML/JSON specifications with live Swagger UI rendering and real-time validation.
- [Playwright Automation Recorder](https://jsondelta.com/automation-recorder): Record browser interactions (click, fill, navigate, select) and generate executable Playwright test scripts. Includes a WCAG 2.1 accessibility scanner.

## Tools Overview

### JSON Tools
- **JSON Compare & Diff** — Side-by-side diff viewer with ignore-ordering option and Previous/Next navigation between differences.
- **Bulk JSON Compare** — Compare multiple JSON files in batch.
- **JSON Formatter & Beautifier** — Format and pretty-print JSON with configurable indentation.
- **JSON Validator** — Validate JSON syntax and highlight errors.
- **JSON Merge** — Deep-merge two JSON objects with conflict resolution.
- **JSON Query** — Filter and query JSON using JSONPath-style expressions.
- **JSON Graph Visualizer** — Interactive force-directed graph for exploring JSON structure.
- **JSON Anonymizer** — Mask PII fields with configurable redaction strategies.
- **JSON Performance Analyzer** — Benchmark JSON parsing and stringify speed.
- **JSON Minifier** — Strip whitespace from JSON.
- **JSON Code Generator** — Convert JSON to typed code in TypeScript, Python, Go, Rust, Java, C#, Swift, Kotlin, Dart, PHP, Ruby, Scala, Haskell, Elm, C++, and 20+ languages.

### Format Converters
- JSON ↔ YAML
- JSON ↔ TOML
- JSON → INI
- CSV ↔ JSON
- XML ↔ JSON

### Cryptography & Security
- **Hash Generators**: MD2, MD4, MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, SHA3-224, SHA3-256, SHA3-384, SHA3-512, Keccak-256, Keccak-512, RIPEMD-160, Whirlpool, CRC-16, CRC-32, NTLM — all computed in-browser using WebAssembly (hash-wasm).
- **HMAC Generator**: HMAC-MD5, HMAC-SHA1, HMAC-SHA256, HMAC-SHA512 with custom secret keys.
- **Symmetric Encryption**: AES-256, 3DES, RC4, Rabbit — encrypt and decrypt text with a passphrase (crypto-js).

### Encoding & Tokens
- **Base64 Encode / Decode** — Standard and URL-safe Base64.
- **JWT Debugger** — Decode and inspect JSON Web Token headers and payloads.

### Minifiers
- JavaScript Minifier
- CSS Minifier
- HTML Minifier
- JSON Minifier
- XML Minifier
- SQL Minifier
- Lua Minifier
- Text Minifier

### Unit Converters
- Length — mm, cm, m, km, in, ft, yd, mi
- Weight — mg, g, kg, lb, oz, ton
- Volume — ml, L, fl oz, cup, pt, qt, gal
- Area — mm², cm², m², km², in², ft², acre, ha
- Time — ms, s, min, h, day, week, month, year
- Unix Timestamp — epoch ↔ human-readable date/time

### Random Generators
- Random UUID / GUID generator
- Random string / password generator
- Random number generator

## Technical Notes
- All tools are 100% client-side. No data is ever sent to a server.
- Built with React 18, TypeScript, Monaco Editor (VS Code engine), Tailwind CSS.
- Supports dark mode and is fully responsive (mobile, tablet, desktop).
- localStorage is used to persist editor content between sessions.
- No login, no account, no tracking.

## Frequently Asked Questions

**What is JSONDelta?**
JSONDelta is a free, browser-based developer toolkit with 30+ tools for working with JSON, HTML, cryptography, data formats, and automation. No signup or installation required.

**Is it free?**
Yes, completely free with no signup, no ads, and no data collection.

**Is it private?**
Yes. All processing is done locally in your browser. No data is ever sent to a server.

**Who is it for?**
Software engineers, web developers, DevOps engineers, QA engineers, data engineers, and anyone who works with JSON, APIs, or web technologies.

**How do I compare two JSON files?**
Paste JSON A and JSON B on the home page and click Compare. Differences are highlighted side-by-side with add/remove/change indicators.

**Can I generate SHA-256 or MD5 hashes?**
Yes. Open the Cryptography section from the Tools menu and choose any of 16+ hash algorithms.

**Is there a Swagger editor?**
Yes, at jsondelta.com/swagger — full Monaco editor with live Swagger UI preview and OpenAPI validation.