Best Free Online Developer Tools to Use in 2026
A practical, opinionated list of the best free online developer tools worth using in 2026, organized by category so you can find what you need fast.
Aug 08, 2026
Convert JSON arrays into sortable, searchable HTML tables with support for nested data.
Paste JSON above or click "Load Sample" to see the table.
A JSON to table converter transforms JSON arrays of objects into structured HTML tables for easy visualization and analysis. JSON data can be difficult to read in its raw text format, especially when dealing with deeply nested objects or large datasets with many entries. This tool parses your JSON array, extracts all unique keys as column headers, and renders the data in an interactive table with sortable columns, search/filter capabilities, and nested object display.
Common use cases include exploring API response data during development, converting JSON exports from databases into readable formats, preparing data for reports or presentations, and debugging data pipelines. The ability to filter rows and copy the generated HTML makes it easy to embed table visualizations into documentation or web pages without writing any code.
[{"name": "John", "age": 30}]) into the input area.Does this tool support nested JSON objects?
Yes. Nested objects are displayed inline within their parent row with proper indentation. The tool recursively extracts all nested fields and creates columns like address.city and address.street to represent nested properties.
What if my JSON is not an array of objects?
The tool expects a JSON array of objects at the top level. If you have a single object, wrap it in square brackets. If your data has a different structure, consider using the JSON Viewer tool instead for free-form JSON exploration.
Is my data sent to a server?
No. All processing is done entirely in your browser. Your JSON data never leaves your device.
How do I use the generated HTML table?
Click "Copy HTML" to copy the table markup, then paste it directly into any HTML document, CMS content editor, or documentation page. The copied HTML includes all the data but not the interactive features (sorting/searching), which are only available within this tool.
Why are some cells showing [object Object]?
This happens when a field contains a complex nested object or array. The tool displays nested structures inline. If the nested structure is too deep, consider flattening your JSON before pasting or using the JSON Viewer for a tree-based exploration.
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