Is my spreadsheet uploaded?

No. Conversion and merging run in your browser, so the file stays on your device.

Which formats can I convert to and from?

Excel to and from CSV, JSON and HTML, which covers most import and export needs.

Does the formula translator cover my language?

It maps function names across the main localized Excel versions, so a formula written in one language works in another.

Yes, free with no account, paid for by light advertising.

Excel tools

Translate formulas, convert spreadsheets, and merge workbooks without opening Excel.

Open the tools 15 tools, all in your browser

Some spreadsheet jobs do not need the whole application. You might need a formula in German that you only know in English, a sheet turned into CSV or JSON for a script, or three workbooks stitched into one. The tools here do those directly in the browser.

Your spreadsheet stays on your device. It is read locally to convert or merge, so financial models and client data are not uploaded anywhere.

Which tool for which job

Formula translator: Convert a formula between the language versions of Excel, so =SUMME works as =SUM and back.
Excel to CSV: Flatten a sheet to plain CSV for a database import or a script.
Excel to JSON: Turn rows into JSON objects for an API or a config file.
Merge workbooks: Combine several files or sheets into one workbook without copy-pasting.

Every Excel tool

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Questions about the Excel tools

Is my spreadsheet uploaded?: No. Conversion and merging run in your browser, so the file stays on your device.
Which formats can I convert to and from?: Excel to and from CSV, JSON and HTML, which covers most import and export needs.
Does the formula translator cover my language?: It maps function names across the main localized Excel versions, so a formula written in one language works in another.
Free?: Yes, free with no account, paid for by light advertising.

Excel tools live on /excel

Free, no account, nothing uploaded.

Open the tools