JSON to Table
About Tool
Reading raw JSON can be difficult, especially when the data is deeply nested or contains hundreds of records. This tool provides a visual way to inspect your data by rendering a JSON Array Input into a clean, searchable, and readable HTML table. It is perfect for developers who need to quickly verify the contents of an API response or data analysts who want to see JSON results in a familiar grid format.
Flattening for Improved Readability
Standard tables only have two dimensions, but JSON can have many. The Flatten Nested Objects feature is designed to solve this by "exploding" nested properties into their own columns using dot notation. This means a nested field like "location": {"city": "Paris"} becomes a column named location.city. If you are generating test data for this view, you might use our Mock Data Generator to create a multi-level JSON array and see how it flattens in real-time.
Visual Inspection and Data Export
Once you click Render Table, the Table Preview allows you to scan through your data rows. If the visual inspection reveals that you only need a specific subset of the data, you can use the Copy CSV Data button to extract the table's current state. For more precise data manipulation, such as removing specific columns before sharing the results, you might transition to the CSV Column Extractor once you have the CSV string.
Developer-First Workflow
This tool is built for speed and utility. The Reset and Clear actions allow you to swap out datasets instantly. Because the rendering happens locally, there are no latency issues or privacy concerns when dealing with internal company data. It is an excellent sanity-check tool before you move data into a production database or a customer-facing report.
Frequently Asked Questions
What happens if my JSON is not an array?
The tool is optimized for arrays of objects. If you provide a single object, it will render that object as a single row in the table.
Does the table support sorting?
The current version provides a static visual render. For sorting and advanced filtering, exporting the data to CSV and opening it in a spreadsheet is the recommended workflow.
Can I render images stored as URLs in the JSON?
The tool renders the URL text. It does not automatically fetch and display images within the table cells to maintain performance and security.
Is there a limit to how many columns can be displayed?
There is no hard limit, but a table with a very large number of columns may require horizontal scrolling in your browser.
This tool was prepared using the JSON guide from the Postgres Online Journal: link1 & link2.
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