Editable Data Table
Open CSV or JSON as an editable table. Keep exact text, change individual cell types, filter rows and save your work privately.
How do I edit a CSV or JSON table online?
Open your file and check the preview. Edit cells, add rows or columns, and filter or sort the table. Download all the data or just the matching rows. Save a project backup to keep row notes and continue editing later.
Your data, a little clearer.
A small table, ready to review
Opening local table…
Import CSV or JSON
Three simple steps
How to use Editable Data Table
Import CSV or a JSON array, or start from the example. Review the parsed data before replacing your table.
Search, filter and sort, then edit records or review selected rows with a status and note. Undo changes when needed.
Export the visible rows or complete table. Keep a project backup to preserve review notes and record IDs.
Common questions
Good to know
Understand the result.
Keep the original.
Is this tool free, and are my files uploaded?
This tool is free with no account required. The work happens in your browser. Your input and files are not sent to a processing server.
What are the limits and details?
Up to 5,000 rows, 30 columns and 1.5 million project characters. Each cell supports 4,096 characters, with JSON nested up to eight levels. CSV imports retain text, including leading zeroes; choose explicitly whether empty CSV cells become null. JSON retains individual cell types; quote large integers to preserve their digits. JavaScript numeric values use floating arithmetic, while numeric-text sorting/comparison preserves exact decimal digits with exponents from −10,000 to 10,000. Non-numeric values and nulls sort last numerically. CSV prefixes numeric and formula-like text for spreadsheets and cannot distinguish null from empty text; use JSON or a project backup for lossless data. Review changes are local decisions, not verified facts. Editing values or changing columns resets affected review statuses to Pending. Up to 20 undo steps; browser storage is not encrypted or permanent. Download backups. No shared database, account or live collaboration is provided.