CSV Editor
Upload or paste CSV data — edit cells, add/delete rows & columns, search and download. No external libraries, 100% browser-based.
Upload a CSV file or paste text below to get started
Double-click any cell to edit it
What is CSV Editor?
The CSV Editor is a browser-based table editor for CSV files. Comma-separated values (CSV) is the most universal data interchange format — virtually every spreadsheet application, database, analytics platform, and API can export and import CSV. But editing a raw CSV file in a text editor means manually counting commas, handling quoted values, and risking accidental corruption of the structure.
This tool renders any CSV file as an interactive spreadsheet table the moment you upload or paste it. You can click any cell to edit its value, add rows at the bottom, insert or delete columns, and reorder data — all within a familiar table interface. A search box lets you filter rows by any value, which is invaluable when working with large exports from databases or analytics platforms.
The tool handles quoted fields (values containing commas or newlines that are wrapped in double-quotes according to RFC 4180), so pasted or uploaded CSVs with complex data parse correctly. Once you have finished editing, download the result as a clean, properly formatted CSV file ready to import into Excel, Google Sheets, a database, or any other tool that accepts CSV input. Because all processing happens in your browser, no data ever leaves your device — making this tool suitable for working with confidential exports such as CRM records, financial data, or customer lists. There is no file size limit imposed by a server, though very large files (hundreds of thousands of rows) may be slower to render in the browser.
How to Use CSV Editor
- Upload or paste your CSV
Drag and drop a CSV file, click to browse for one, or paste raw CSV text directly into the input area.
- Edit cells, rows and columns
Click any cell to edit it inline. Add or delete rows and columns using the toolbar buttons.
- Search and filter
Use the search box to filter visible rows by any value, making it easy to locate and edit specific records.
- Download the edited CSV
Click Download to save your changes as a clean, properly formatted CSV file ready for import elsewhere.
Key Benefits
Edit CSV data in a familiar table view — no need to count commas or manage quoted fields manually.
Restructure your data freely — insert columns, append rows, or remove unwanted data in seconds.
Quickly locate specific records in large CSV exports using the instant row-filtering search.
CSV data never leaves your device — all parsing, editing, and export happens entirely client-side.
Frequently Asked Questions
The editor supports comma-delimited files by default. It also detects and handles tab-separated values (TSV) and semicolon-delimited files, which are common exports from European locale Excel and some analytics platforms.
The parser follows RFC 4180: fields containing commas, newlines, or double-quote characters are wrapped in double quotes. Double-quote characters within a field are escaped by doubling them. This ensures complex data round-trips without corruption.
There is no server-side limit because everything runs in the browser. In practice, files up to a few thousand rows load and edit smoothly. Very large files (100,000+ rows) may be slower to render as a table in the browser.
Yes. Use the "Add Column" button to insert a new column. The header row will gain a new field and all existing rows will have a blank cell in that column, which you can fill in manually or leave empty.