Local Browser Sandboxing

Clean, Focused Developer Utilities

A fast, enterprise-grade suite for JSON formatting, syntax validation, file comparisons, and CSV transformations. Runs fully client-side.

Launch Utilities Browse Catalog

Available Utilities

Select a tool to open the workspace

File Converters

Translate one file format into another

CSV to JSON / JSON to CSV

Convert CSV and JSON in either direction with type casting and a table preview

Convert Excel spreadsheets (.xlsx / .xls) into clean CSV sheets

Convert XML documents into structured JSON with attributes, arrays, and nested elements

JSON to JS / JS to JSON

Convert JSON and JavaScript object literals in either direction without executing code

Convert SVG markup into React components with live preview, TypeScript support, and configurable props

JSON Utilities

Format, validate, compare, and clean JSON

Format & Minify

JSON Beautifier

Format, indent, or collapse raw JSON data to read it easily

Validate JSON syntax and debug malformed keys or brackets

Compare two JSON objects side-by-side and find discrepancies

Redact sensitive values from API responses and database records before sharing

Preview & Notes

Write markup and preview the rendered result

HTML Playground

Write HTML, CSS, and JavaScript with a live sandboxed preview, console output, and standalone HTML export

Mermaid Diagram

Write Mermaid syntax, preview diagrams, and export as images

Rich Markdown note editor with diagrams, images, and export to PDF/HTML/DOCX/TXT/MD

Inspect & Debug

Analyze network captures and timestamps

Analyze HTTP Archive files for performance, errors, CORS, and auth issues

Epoch Converter

Convert epoch timestamps to IST and UTC, and dates back to epoch

Engineered for Reliability

Zero Server Dependencies

All validations, format corrections, comparisons, and CSV transformations run within browser JavaScript. Secure for processing database logs or internal properties.

Monaco Editor Core

Powered by the Monaco core component framework. Experience bracket pairing, line references, code folding, block selects, and responsive layouts.

Instant Compilation

Fast client-side rendering engines handle file loads up to dozens of megabytes with sub-millisecond compile loops.

Frequently Asked Questions

Is my data secure when using DataTools?

Yes, 100%. DataTools runs all computations locally in your browser. No files, logs, or payload strings are ever uploaded or transmitted to any server. Even the code editor assets are served from the app itself, so you can run the application fully offline.

What file size limitations exist?

Since processing happens locally, file limitations depend on your browser's allocated memory. Generally, JSON and CSV datasets up to 10-15MB compile instantly, while larger files may experience a brief rendering delay.

What is the difference between DevTools and DataTools?

DataTools is our rebranded utility suite designed strictly for database and format operations (JSON/CSV mappings). It introduces permanent side-panel navigations, clean neutral grids, and a production-ready SaaS interface.

How does the JSON Compare diff viewer work?

We utilize Monaco Editor's native diffing algorithm—the same engine that drives VS Code—to provide real-time, high-fidelity side-by-side or inline comparison views.