JSON to HTML Converter
Convert JSON data into styled HTML tables. Turns arrays of objects, single objects, or lists of values into semantic, ready-to-use HTML markup.
HTML Options
Recommended Settings
Pro Tips
- •Arrays of objects become multi-column tables with headers from the object keys
- •A single JSON object is rendered as a two-column key/value table
- •Nested objects and arrays are shown as compact JSON strings inside a cell
- •Choose 'Modern' style for contemporary designs with gradient headers
- •Enable responsive mode for mobile-friendly tables on small screens
Most Popular
Most users prefer the Modern style with responsive mode enabled for the best visual appearance
When to Use This Tool
Render JSON responses from REST APIs as readable HTML tables for internal dashboards, admin panels, or quick data reviews without writing custom rendering code.
Convert JSON configuration or sample data into HTML tables for technical documentation, wikis, and knowledge bases where raw JSON is harder to scan.
Generate standalone HTML tables from JSON data files for static websites, reports, or emails that need to embed tabular data without a backend.
Quickly eyeball JSON records as a table to spot missing fields, inconsistent keys, or formatting issues before shipping the data downstream.
How It Works
Parse the JSON input and detect whether it's an array of objects, a single object, or a list of values
Build column headers from the union of object keys, or use Key/Value columns for a single object
Generate a semantic HTML table with thead and tbody, escaping special characters for safe rendering
Apply the selected CSS styling (basic, striped, bordered, hover, or modern)
Add a responsive wrapper and media queries if enabled
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by Pure JavaScript for optimal performance on modern browsers.
Secure
No data collection, no tracking, no sign-up required.
Frequently Asked Questions
What JSON structures does this tool support?
It supports arrays of objects (rendered as a multi-column table), a single flat object (rendered as a Key/Value table), and arrays of primitive values (rendered as a single-column table).
What happens to nested objects or arrays?
Nested values are shown as compact JSON strings inside their table cell, since HTML tables are inherently flat. Flatten your JSON beforehand if you need nested data broken into separate columns.
Can I use the generated HTML on my website?
Yes! The output is standard, semantic HTML that works on any website. Copy it directly into your HTML files or CMS, and customize or replace the included CSS as needed.
What does responsive mode do?
Responsive mode adds CSS media queries and a horizontally scrollable wrapper so the table stays usable on small screens instead of breaking the page layout.
How are missing keys handled in an array of objects?
Column headers are built from the union of keys across every object in the array. If an object doesn't have a particular key, its cell for that column is left empty.