DataTools
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 UtilitiesBrowse Catalog

Available Utilities

Select a tool to open the workspace

CSV to JSON
CSV → JSON
Convert tabular CSV data to a structured JSON array
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JSON to CSV
JSON → CSV
Convert JSON arrays into clean comma-separated CSV format
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Excel to CSV
Excel → CSV
Convert Excel spreadsheets (.xlsx / .xls) into clean CSV sheets
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XML to JSON
XML → JSON
Convert XML documents into structured JSON with attributes, arrays, and nested elements
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JSON to JS
JSON → JS
Convert standard JSON text to JavaScript object literal notation
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JS to JSON
JS → JSON
Convert JavaScript object literals back into strict, valid JSON
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Format & Minify
JSON Beautifier
Format, indent, or collapse raw JSON data to read it easily
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Validator
JSON Validator
Validate JSON syntax and debug malformed keys or brackets
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Diff Viewer
JSON Compare
Compare two JSON objects side-by-side and find discrepancies
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Time
Epoch Converter
Convert epoch timestamps to IST and UTC, and dates back to epoch
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Diagrams
Mermaid & PlantUML
Write Mermaid or PlantUML syntax, preview diagrams, and export as images
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Docs
Markdown Notes
Rich Markdown note editor with diagrams, images, and export to PDF/HTML/DOCX/TXT/MD
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Performance
HAR Analyzer
Analyze HTTP Archive files for performance, errors, CORS, and auth issues
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Privacy
JSON Sanitizer
Redact sensitive values from API responses and database records before sharing
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Playground
HTML Playground
Write HTML, CSS, and JavaScript with a live sandboxed preview, console output, and standalone HTML export
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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.