Clean, compare and understand your files.
BenchCove is a set of professional workbenches for people who work online. The first one turns messy CSV exports into clean, trustworthy data, right in your browser.
No sign-up. Your files stay on your device.
| Name | Country | |
|---|---|---|
| Ayesha Khan | ayesha@studio.io | Pakistan |
| Liam O'Brien | liam@obrien.dev | Ireland |
| Ayesha Khan | AYESHA@studio.io | Pakistan |
| Sofia Rossi | sofia.rossi@mail.it | Italy |
| Liam O'Brien | liam@obrien.dev | Ireland |
| Kenji Sato | kenji@sato.jp | Japan |
| Sofia Rossi | sofia.rossi@mail.it | Italy |
Cleaning steps
- Trim whitespace3 cells
- Lowercase emails1 cell
- Remove duplicates3 rows
Rows
85
See cleaning in action
Switch the steps on and off. This runs on a small built-in sample file, and every number below is calculated from the rows you see.
- Rows
- 8of 8
- Duplicates removed
- 0
- Cells changed
- 0in kept rows
- Empty cells
- 1
customers.csv
Sample data| # | Name | Country | Plan | |
|---|---|---|---|---|
| 1 | Ayesha Khan | ayesha@studio.io | Pakistan | Pro |
| 2 | ·Liam O'Brien· | liam@obrien.dev | Ireland | Free |
| 3 | Ayesha Khan | AYESHA@studio.io· | Pakistan | Pro |
| 4 | Sofia Rossi | sofia.rossi@mail.it | Italy | Pro |
| 5 | Liam O'Brien | liam@obrien.dev | Ireland | Free |
| 6 | Kenji Sato | kenji@sato.jp | ·Japan | Team |
| 7 | Sofia Rossi | sofia.rossi@mail.it | Italy | Pro |
| 8 | Maya Patel | empty | India | Free |
·· hidden spaces changed cellstruck removed duplicate
Everything in the File & Data Workbench
All 4 tools are available now, free and without an account.
- Available
Import & Preview
Drop in a CSV, check its structure, detect column types and spot problems.
- Available
Clean
Remove duplicates, trim spaces, fix case, find and replace, handle empty values and edit columns, with a preview and undo for every step.
- Available
Compare
Match two files by key columns and see exactly what was added, removed or changed.
- Available
Analyse
Column profiles, data-quality score and charts built from your actual data.
How it works
Step 1
Drop in your file
Import a CSV export from any tool. BenchCove checks its structure and explains any problems in plain language.
Step 2
Apply steps you can undo
Every change is a step you can preview, undo or remove. Your original file is never modified.
Step 3
Download a clean result
Export the cleaned file along with a summary of exactly what changed and why.
Built for private data
Customer lists, sales exports and analytics often contain personal information. BenchCove is designed so that data never has to leave your computer.
Processed in your browser
Files are read and processed on your device. They are not uploaded to a BenchCove server.
Your original stays untouched
Cleaning steps are recorded separately, so you can always go back to the file you started with.
No account required
Open the workbench and start. There is no sign-up and nothing to install.
Ready when your next export is
Follow the workbench as it is built. New tools appear on the dashboard as soon as they are tested and ready.
Go to the dashboard