Upload a CSV or Excel file and get a list of problems with row and column examples: blank or duplicate headers, hidden characters, stray spaces, duplicate rows and values that look like broken emails, URLs or numbers. Safe fixes are optional and undoable.
CSV, TSV or Excel. It is checked in your browser.
Every issue with severity, row, column and an example value.
Apply safe fixes with before/after, or download the issue list as CSV.
Header problems (blank, duplicate, hidden characters), exact duplicate rows, leading/trailing spaces and invisible characters, plus format checks on columns that look like emails, URLs, numbers or phone numbers.
Pick Shopify, HubSpot, Salesforce or Google Ads to also check required columns for that import. SheetFix doesn't connect to those systems.
Only if you apply a fix. Every fix shows before/after and can be undone.
Yes, download the issue report as CSV.
Yes. The check runs in your browser and the file isn't uploaded.
Prepare CSV/Excel for Shopify, HubSpot or Salesforce: field mapping, validation, safe fixes.
Fix spaces, emails, phone numbers, dates and capitalization.
Turn garbled é and ’ back into é and ’.
Find and remove duplicate rows, review near-duplicates.