How it works
How to use the Excel to HTML
Choose a spreadsheet
Drop an .xlsx, .xls, .ods or .csv file.
Pick a sheet
Select the sheet and whether the first row is a header.
Copy the HTML
Preview the table, then copy or download it.
Private by design
Spreadsheets often contain sensitive data. The file is read with SheetJS directly in your browser — it is never uploaded anywhere.
Built for developers
Why developers use it
Private by design
Runs 100% in your browser. Nothing you paste is uploaded, logged or stored on a server.
Instant results
Output updates as you type, with precise error locations when something is wrong.
Works offline
Once loaded, the tool keeps working without a connection. Install it as an app if you like.
Free, no sign-up
No accounts, no limits, no watermarks.
FAQ
Frequently asked questions
Are formulas and formatting kept?
Cells are exported with their displayed values. Colours, merged cells and formulas are not reproduced.
Is my data uploaded anywhere?
No. Everything runs locally in your browser — nothing you paste or open is sent to a server, logged or stored. The tool keeps working offline once the page has loaded.
Keep going
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