CleanCSV
Clean your messy CSV files in seconds
2 followers
Clean your messy CSV files in seconds
2 followers
A free browser-based tool that removes duplicates, fixes invalid emails, trims extra whitespace and standardizes date formats. No signup, no server upload — everything runs locally.
This is the 2nd launch from CleanCSV. View more
CleanCSV
Launched this week
Clean, deduplicate, validate, and download CSV files instantly with complete in-browser privacy. Fix broken commas, standardize mixed date formats, and remove duplicates without uploading data to external servers.
Launch Team
Render Sandboxes: a computer for every agentIsolated compute, persistent state and a real filesystem
Promoted
Hey hunters! 👋
I built CleanCSV because I was tired of messy spreadsheets breaking database imports—especially unquoted commas, inconsistent date formats, and duplicate rows. Most tools require uploading spreadsheets to a remote server, which is a major privacy risk.
CleanCSV processes everything 100% locally in your browser memory. No data is stored, indexed, or sent anywhere.
I’d love to hear your thoughts and suggestions on what cleaning rules to add next!