CSV Editor — view, edit, sort and convert CSV in your browser

This CSV editor opens comma-separated data as an editable table so you can fix a value, rename a column, add or delete rows, sort the data and export it again — without a spreadsheet and without uploading the file anywhere. Paste CSV into the "raw csv" box or import a .csv file and it parses into a live table you can edit cell by cell; it is the fast way to edit CSV online, clean up an export, or view a CSV file you were sent.

The table pane and the raw-text pane stay in sync: edit a cell and the CSV text updates, or paste new CSV and the table re-parses. When you are done you can export the result back to CSV, or convert CSV to JSON with one click. Everything runs 100% client-side in your browser — nothing you paste or import is uploaded, so it is safe for private or sensitive data.

Usage

1. Paste comma-separated values into the "raw csv" pane, or click "import" to load a .csv file from your computer. The first row is read as the header row and the rest as data.
2. Edit any cell directly in the "table" pane — click a cell and type. Click a header to rename the column. The "raw csv" text updates as you go, so the two views never drift apart.
3. Use "+ row" to append an empty row and "+ column" to add a column; delete a row or a column with the ✕ button on that row or in that column header.
4. Click the sort toggle (↕ → ▲ / ▼) in a column header to sort the table by that column — numeric when the column is all numbers, alphabetical otherwise — and click again to reverse the order.
5. Type in the "search…" box to filter the table to rows that contain your text, so you can find a record in a large file.
6. Click "export csv" to download the edited table as a .csv file, or "export json" to convert the rows to a JSON array of objects keyed by your headers. "clear" empties the editor to start fresh.

Examples

Convert CSV to JSON: name,age John,30 → export json

Paste or import your CSV, then click "export json". Each row becomes an object keyed by the header row — `[{"name":"John","age":"30"}, …]` — so you can turn a CSV export into JSON for an API or a config file, all in the browser.

Sort a column: age ↕ → ▲

Click the sort toggle in the "age" header to order rows by that column. A column of numbers sorts numerically (so 9 comes before 30, not after); a text column sorts alphabetically. Click again to flip ascending ↔ descending.

Fix and re-export a messy export: edit cell · + row · export csv

Import a CSV someone sent you, correct a wrong value by clicking the cell, add any missing row with "+ row", then click "export csv" to download the cleaned-up file. Nothing leaves your browser at any step.

FAQ

How do I edit a CSV file online?

Click "import" to load your .csv file (or paste the text into the "raw csv" pane). It opens as an editable table — click any cell to change its value, click a header to rename the column, and use "+ row" / "+ column" or the ✕ buttons to add or remove rows and columns. Then click "export csv" to download the result. No upload and no sign-up.

How do I convert CSV to JSON?

Load your CSV and click "export json". Each data row is converted to a JSON object keyed by the header row, and the whole table downloads as a JSON array of objects. The conversion runs entirely in your browser.

Can I sort the rows by a column?

Yes. Click the sort toggle (↕) in any column header to sort by that column — numerically if every value is a number, alphabetically otherwise — and click again to reverse the direction. The "search…" box also lets you filter the table to rows containing specific text.

Is my CSV uploaded anywhere?

No. Parsing, editing, sorting, the CSV→JSON conversion and both imports and exports all happen locally in your browser — nothing is sent to a server. That makes it safe to edit private or sensitive spreadsheets; 0 bytes leave your browser.