JSON & CSV Editor – View, Edit, and Convert Files Online Free
Drag & drop JSON or CSV files, edit values inline, and export instantly. Convert between JSON and CSV formats in one click — no uploads, no signup.
How to Use
Load Data
Drag & drop a .json or .csv file, or paste text directly into the editor.
Edit Inline
Click any value to edit it in place. Switch between JSON and CSV views.
Export File
Download the updated file as JSON or CSV with one click.
Why Use Our Tool?
Drag & Drop
Drop JSON or CSV files directly onto the editor area.
Inline Editing
Click any cell or value to edit it directly — no extra steps.
Instant Export
Download your edited data as a formatted JSON or CSV file.
100% Private
All processing happens in your browser. Files are never uploaded.
Frequently Asked Questions
What file types are supported?
The editor supports .json and .csv file formats. You can also paste raw JSON or CSV text directly.
Can I edit data inline?
Yes. JSON values and CSV cell values are editable directly in the table/tree view. Changes are reflected in the export.
Is my file data secure?
All processing happens in your browser. Your files are never uploaded to any server.
What is the maximum file size?
The editor works well for files up to ~5MB. Very large files may be slow to render in the browser.