JSON Editor
A professional spreadsheet interface for your JSON data. Edit cells, toggle columns, and refine datasets without ever leaving your browser.
Drop JSON file here or click to browse
Inline Cell Editing
Click any cell to update its value. Perfect for fixing typos in API logs or manually cleaning datasets before export.
Column Management
Hide irrelevant data fields or reorder columns to focus on what matters. Your view settings stay persistent during your session.
Selective Row Export
Select specific rows using the checkbox system to export only a subset of your data, keeping your final files lean and relevant.
Mastering Large-Scale JSON Editing
Why Edit JSON as a Table?
Standard text editors make it difficult to compare objects. By converting JSON to a table, you can see structural patterns and data inconsistencies immediately.
Our tool is optimized for Data Analysts and Software Engineers who need to scrub API responses, mock data for testing, or prepare JSON exports for business intelligence tools like Tableau or PowerBI.
- Identify null values across thousands of records.
- Batch-hide unnecessary metadata columns.
- Live-preview dot-notation flattening.
Flattening Logic
Nested keys like "address": {"city": "NY"} become address.city for easy filtering.
Pro-Tips for Power Users
Click a column header to sort alphabetically. This helps group similar data types for faster bulk inspection.
Don't export the whole file if you only edited a few rows. Select them and hit "Export Selected" to save time.
Advanced JSON Modification Features
Our Free Online JSON Editor is built on a high-performance grid engine. Unlike traditional "tree-view" editors, our spreadsheet approach allows for horizontal data comparison. This is critical when you need to ensure that every object in an array follows the same schema.
The Data Analysis Workflow
Inspect raw JSON in a searchable table to identify patterns.
Clean data, hide columns, and update values in the Editor.
Export your refined, clean data to a new file.
Editor
Manual
// Shortcut Keys
Double-Click: Edit Cell
Enter: Save Value
Will editing here change my original file?
No. All edits are local to your browser. You must export the data to save changes to a new file.
Is there a limit to how many rows I can edit?
We use windowed rendering to support files up to 100,000+ rows. As long as your browser has enough RAM, the editor will remain responsive.