jsontotable

Posted on Oct 15

Turn Any JSON into a Clean HTML Table (No Code, No Uploads)

#webdev #javascript #nextjs #productivity

Ever copied a JSON response from an API and wished it looked like a spreadsheet? This post shows you how to turn messy JSON into clean tables in seconds—and export it in multiple formats without writing code.

Try jsontotable.net — 100% client-side, your data never leaves your browser.

The Problem

JSON is hard to read. Nested objects and arrays are difficult to scan visually.
Sharing is awkward. Non-technical teammates can't work with raw JSON.
Reports need tables. Stakeholders expect CSV/Excel/PDF they can open and sort.

Solution: Paste JSON → get instant table → copy or download in any format.

Quick Demo

Sample JSON:

[
  {
    "id": "p_1001",
    "name": "Wireless Mouse",
    "price": 24.99,
    "in_stock": true,
    "ratings": { "average": 4.6, "reviews": 245 }
  },
  {
    "id": "p_1002",
    "name": "Bluetooth Headphones",
    "price": 89.5,
    "in_stock": true,
    "ratings": { "average": 4.3, "reviews": 523 }
  }
]

Steps:

Visit jsontotable.net
Paste your JSON → table appears instantly
Copy (HTML/CSV/Markdown) or Download (CSV/Excel/PDF)

No signup. No uploads. Just results.

Key Features

🔒 100% Privacy-First

All processing happens in your browser
Your data never touches any server
Works offline after initial load
Perfect for sensitive data

📋 Multiple Copy Options

Copy HTML Table → paste into Word, Google Docs, Notion
Copy CSV → quick transfer to spreadsheets
Copy Markdown → GitHub READMEs and documentation

💾 Flexible Downloads

CSV → Excel, Google Sheets compatible
Excel (.xlsx) → native Excel format with formatting
PDF → print-ready reports

⚡ Smart Features

Real-time preview as you type
Instant search and filtering
Handles nested JSON automatically
Sorts by clicking column headers
Syntax-highlighted editor

How It Handles Different JSON

Arrays of Objects → Multi-column table with headers

[{"name": "John", "age": 28}, {"name": "Jane", "age": 32}]

Nested Data → Formatted JSON in cells (preserves structure)

{"user": {"name": "John", "address": {"city": "NYC"}}}

Mixed Structures → Handles rows with different keys

[{"name": "A", "age": 20}, {"name": "B", "email": "b@test.com"}]

The tool automatically creates columns for all unique keys across objects.

Copy vs Download

Copy (puts data in clipboard):

✅ HTML Table → paste into any WYSIWYG editor
✅ CSV → quick data transfer
✅ Markdown → perfect for docs/wikis

Download (saves files):

✅ CSV → spreadsheet-ready format
✅ Excel (.xlsx) → native Excel with formatting
✅ PDF → professional reports

Real-World Use Cases

API Development: Paste API responses to quickly visualize data patterns

Data Analysis: Convert JSON datasets to Excel for analysis and reporting

Documentation: Copy Markdown tables for GitHub READMEs and wikis

Team Collaboration: Share CSV/Excel with non-technical teammates

AI Workflows: Format ChatGPT/Claude outputs into readable tables

Performance

Optimized for datasets with 50,000+ rows
No server round-trips = instant conversion
For very large files (>100MB), export directly to CSV/Excel for best performance

FAQ

Q: Does my data leave the browser?
A: No. 100% client-side processing. No uploads, no tracking.

Q: Can I paste into Google Docs or Word?
A: Yes! For Google Docs, use "Copy CSV" format. For Microsoft Word, use "Copy HTML Table" for best formatting preservation.

Q: Is it really free?
A: Yes. No premium tiers, no usage limits, free forever.

Try It Now

Visit jsontotable.net and paste your JSON.

What you get:

✅ Instant table preview
✅ Copy as HTML/CSV/Markdown
✅ Download as CSV/Excel/PDF
✅ Real-time search and sort
✅ 100% private (no uploads)
✅ Free forever

Tech Stack

Built with Next.js 14, React 18, TypeScript, and TanStack Table. All processing happens client-side using Web APIs.

I built this tool to solve my own need for quick JSON visualization. Feedback and suggestions are always welcome! 🙌

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