CSV Maker & Online CSV Editor
TL;DR
- A real editable spreadsheet grid, start blank or upload a file, no Excel or signup required.
- Add/remove rows and columns, Find & Replace, undo/redo.
- Export to CSV, TSV, JSON or XLSX, everything happens in your browser.
Start a new CSV, or open an existing one
Supported formats: .csv,.xlsx,.xls,.xlsm,.xlsb,.tsv
Not signed in: up to 1024kB per day, no sign-up needed.
How to edit, view, or create a CSV online
- Start blank or upload a file. Open a blank spreadsheet grid, or upload an existing .csv, .tsv or .xlsx file to view and edit it.
- Edit cells like a spreadsheet. Click any cell to type, use Find & Replace, add or remove rows and columns, and undo/redo changes as you go.
- Download or copy your CSV. Export as CSV, TSV, JSON or XLSX, or copy the data straight to your clipboard. Nothing is uploaded to a server.
About CSV Editor
A free online CSV editor and viewer: start with a blank spreadsheet or upload a file, edit cells like Excel, then export as CSV, TSV, JSON or XLSX. No signup, nothing leaves your browser.
Most "CSV viewer" or "CSV generator" tools either dump your file into a read-only preview, or force you into a full spreadsheet app just to fix a header row or add a couple of rows.
This editor sits in between: a real, editable grid that opens instantly, whether you're starting from nothing or dropping in an existing CSV, TSV or Excel file.
Type directly into cells, add or delete rows and columns, use Find & Replace across the whole sheet, and undo mistakes, the same way you'd expect from a spreadsheet, without opening one.
When you're done, export straight to CSV, TSV, JSON or XLSX, or copy the data to your clipboard, everything runs client-side in your browser, so nothing you type or upload is sent anywhere.
If you need to go the other way and convert a CSV into XML, YAML, Markdown or HTML, the dedicated converters linked below handle those formats specifically.
Category: Conversion & ExportCommon Use Cases
- Viewing a CSV file online without opening Excel or Google Sheets
- Quickly fixing a header row, typo, or missing value in an existing CSV
- Building a small CSV from scratch, one cell at a time, then downloading it
- Converting a pasted or uploaded dataset into CSV, TSV, JSON or XLSX
Key Features
- Start from a blank grid or upload a CSV, TSV or XLSX file
- Click-to-edit spreadsheet grid with add/remove row and column, undo/redo, and Find & Replace
- Export to CSV, TSV, JSON or XLSX, or copy to clipboard in one click
- Runs entirely client-side, your data is never uploaded to a server
The CSV Editor tool is compatible with: Excel, Google Sheets, Numbers.
Need a specific output format instead of a quick edit? The CSV to XML, CSV to YAML, CSV to Markdown and CSV to HTML converters are built specifically for those formats.
Frequently Asked Questions
Upload it here and it opens directly in an editable grid, no download or Excel install needed.
Start with a blank sheet, type your data into the grid, then export it as a .csv file.
Open this CSV maker, type your headers and rows into the blank grid (or paste from a spreadsheet), then click export to download a .csv file. No signup, no install, and nothing leaves your browser.
Upload the file, fix headers, values and column order in the grid, use Find & Replace to standardise text, then export as CSV, TSV, JSON or XLSX. For delimiter or encoding changes, the dedicated tools linked on this page handle those.
No, the grid and all edits happen entirely in your browser. Nothing is sent to a server.
Yes, upload any .csv, .tsv or .xlsx file and edit its cells directly in the grid.
CSV, TSV, JSON and XLSX are built in. For XML, YAML, Markdown or HTML, use the dedicated converters linked on this page.
Built for anyone who needs to quickly view, tweak, or create a CSV without opening a full spreadsheet app.
Read the related guide →