Edit the data, not the punctuation. Paste CSV text or open a local file, make focused changes in the table, and copy or download the updated result. The editor detects comma, semicolon, tab, and pipe separators, while a manual separator choice handles unusual exports.
Private browser utility / Developer
Free Online CSV Editor
Runs entirely in your browser - no upload, no sign-up.
Open CSV data
Paste data or choose a local CSV, TSV, or text file.
or drop a file here
Editable table
Click any cell to edit it. Changes update the CSV output immediately.
Your editable table will appear hereLoad the example, paste CSV data, or choose a file to begin.
CSV output
Quoted fields and line breaks are escaped automatically.
Open CSV data to generate editable output.
What is an online CSV editor?
An online CSV editor turns comma-separated data into a spreadsheet-style grid where you can change headers and cells, add or remove rows and columns, and export the result. This editor runs locally in your browser, so quick fixes do not require a spreadsheet app or a file upload.
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How to use
- 01Load the CSV
Paste delimited text, choose a local file, or load the example. Select the separator and header option if automatic detection is not right.
- 02Edit the table
Click any header or cell to edit it. Add rows or columns, or delete a specific row or column with its labelled control.
- 03Export the result
Review the generated CSV, then copy it to the clipboard or download a UTF-8 .csv file.
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Who it's for
- Operations teams correcting product feeds or customer exports before an import.
- Developers adjusting fixtures, configuration tables, and API test data without opening a full spreadsheet.
- Analysts fixing headers, blank values, or individual records while preserving plain CSV output.
- Students and researchers cleaning small datasets on any computer with a modern browser.
FAQ
Is my CSV file uploaded?
No. The browser reads, parses, edits, and exports your data locally. The CSV contents are not sent to a file-processing server, which makes the editor suitable for quick work on private exports that you do not want to upload elsewhere.
Is this CSV editor free?
Yes. The CSV editor is free to use without an account, installation, or paid export step. Open the page in a modern browser, edit the table, and copy or download the finished CSV during the same session.
What are the CSV editor limits?
Each session accepts up to 5 MB, 1,000 data rows, and 100 columns. Those bounds keep inline editing responsive on phones and typical laptops. Use a desktop spreadsheet or database tool for much larger datasets or bulk transformations.
Can the editor handle commas and line breaks inside cells?
Yes. Properly quoted fields may contain separators, line breaks, and escaped double quotes. On export, the editor automatically wraps affected values in double quotes and doubles quote characters so the resulting CSV can be parsed correctly.
Which separators can I use?
The editor supports commas, semicolons, tabs, and pipes. Automatic detection checks the first complete record, or you can select a separator manually. The selected separator is also used when generating the edited output.
Will CSV keep colors, formulas, and number formatting?
No. CSV is plain text and does not store spreadsheet styles, formulas, worksheets, or cell types. The editor keeps cell values as text, including leading zeroes, then writes them as delimited records with the quoting required for safe parsing.