SheetRevive
Check emails in a CSV.
Valid-looking addresses can be lowercased. Invalid ones are listed, never guessed.
No signup required. Standard files are processed locally in your browser.
SheetRevive will not invent a missing or broken email address.
Supported files & limitations
- Supported:
.csvand.xlsx. Macro-enabled workbooks (.xlsm) are not accepted. - Free tier: up to 25,000 rows and 8 MB. Larger limits available with a paid pass.
- Formulas are read as their cached values; formula logic is not re-evaluated.
- Cell formatting, merged cells, and hidden sheets may not be preserved exactly in the output.
- External links and macros are not followed or executed.
- Date and number parsing depends on your locale; ambiguous values may be flagged for review.
- Fuzzy duplicate matching is heuristic, capped at 2,000 rows, and never merges automatically.