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Convert CSV, Excel, and Google Sheets Online

Move data between spreadsheets, BigQuery, and APIs — no install

Drop any CSV, Excel, TSV, or Google Sheets file — or pull live data from BigQuery or any REST API endpoint. Pick your target format, and download the converted file in seconds. Runs entirely in your browser. No upload, no signup, no limits.

Use the tool

How it works

Step 1
Connect your data
Upload a CSV, Excel, or TSV file, pick a Sheet from Google Drive, run a live query on BigQuery, or connect to any REST API (GET/POST, with Bearer / API Key / Basic auth).
Step 2
Choose the target format
CSV, TSV, Excel, or Google Sheets — whatever you need next.
Step 3
Download the result
Converted file is ready in seconds. No upload, no signup.

Want to schedule this, not just run it once?

Converting the same file every week? Sheetgo can watch a Google Drive folder, auto-convert new files, and push the output to your Excel or Google Sheets report — on a schedule, without you opening a browser.

Get Sheetgo on Google Workspace Marketplace

Frequently Asked Question

Dive deeper into converting spreadsheet formats

Get the answers to your questions about spreadsheet conversion

Is it really free?

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Yes. Convert any file, any format, no signup, no limits.

Do you upload my file to a server?

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No. Conversion happens entirely in your browser. Your data never leaves your computer.

What file sizes are supported?

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Files up to a few hundred MB work comfortably in modern browsers. Very large files may slow down your computer.

Can I convert from BigQuery or an API endpoint?

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Yes. Connect your BigQuery dataset with a live SQL query, or point the tool at any REST API (Bearer Token, API Key, or Basic Auth supported) and convert the response to the format you need.

What else can I do with the Sheetgo add-on?

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Beyond scheduled automation, the Sheetgo add-on — powered by Sheetgo Workflows — can send personalized emails from spreadsheet rows, generate Google Docs or PDFs as mail-merge outputs, chain multiple processing steps into one flow (for example: filter → merge → dedupe → email), and orchestrate approvals across teams. Everything runs unattended once set up. One-click install from Google Workspace Marketplace.

Which data sources can I connect to with Sheetgo?

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With the Sheetgo add-on, your automated flows can pull from Google Sheets, Excel, CSV files in Google Drive, BigQuery (with live SQL queries), and any REST API using Bearer Token, API Key, or Basic authentication. The output can land back in a spreadsheet, a generated Google Doc or PDF, an email, or any combination chained in a Workflow.

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