Stop wasting Monday mornings cleaning marketing CSVs.
Drop your messy Google Ads, Meta Ads, HubSpot, or Mailchimp exports. AI cleans, dedupes, and merges them in 30 seconds. Download a spreadsheet that's actually ready to analyse.
The Monday morning marketer's nightmare
Different date formats everywhere
Google Ads gives you 15/01/2026. Meta gives you Jan 15, 2026. HubSpot gives you 2026-01-15. Joining them is a nightmare.
Near-duplicate names
'Spring_Sale_2026' and 'Spring Sale 2026' are the same campaign — but your VLOOKUP doesn't know that, so half your data goes missing.
Currency formats that don't match
£1,234.56 vs 1234,56 vs $1,234.56 — when your numbers are strings, you can't sum them. Pivot tables give up.
Three steps. Thirty seconds.
Upload
Drag and drop your CSV or Excel file.
We scan it
AI shows you exactly what needs fixing — e.g. "Found 12 issues across 200 rows".
Click clean
Download a perfectly normalised file.
What BasisFile fixes automatically
Inconsistent date formats
Normalised to one standard across every file.
Duplicate rows
Detected and removed — exact and near matches.
Near-duplicate names (fuzzy match)
Same entity, different spelling. Joined correctly.
Mixed currency formats
Converted to one consistent numeric format.
Inconsistent capitalisation
Standardised so 'iPhone' and 'IPHONE' agree.
Empty rows and trailing whitespace
Cleaned out — no more invisible junk.
Pricing that pays for itself the first time you use it.
Free
1 file/day, up to 1,000 rows, watermarked output. Perfect for occasional cleanup.
Pro
Unlimited files, up to 100,000 rows. Save merge templates. No watermarks.
Team
Everything in Pro, plus 5 seats and up to 500,000 rows. For small marketing teams.
Agency
Everything in Team, plus 25 seats, unlimited rows, white-label exports for client reports, API access.
No credit card required for free tier