Fill long web forms from spreadsheet rows
Use Claude with browser automation to copy spreadsheet data into long forms and verify each field before submitting.
- What they did
- A person on the thread asked how to automate the task of moving data from Google Sheets or Excel into lengthy web forms. One commenter described using Claude with Playwright MCP to control the browser, take screenshots, and check the filled fields again after entry.
- How it went
- They said the setup could complete the form and, after being converted into a steadier script, handle every field in one pass faster than a person. They also said the Playwright MCP version was very slow and sometimes introduced formatting errors unless the prompt explicitly asked for verification.
- Tips
- If the form layout does not change much, a fixed script may work better than a fully agentic flow. Build in screenshot checks and require the agent to confirm field values before submission.
Try it yourself with Claude
Use [Claude or similar agent] with browser automation to open [form URL] and populate the form from [Google Sheet/Excel file]. Map each spreadsheet column to the matching form field: [column-to-field list]. After each page, capture a screenshot, compare every entered value against the source data, and list any differences. Pause before any irreversible action, show me the completed form, and do not click Submit until I approve. If the form structure stays consistent, tell me whether a repeatable script would be safer and faster.
Fill in the [brackets]. Agents can make mistakes, so review anything before it is sent, paid or deleted.
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