Clean
Takes a messy PDF, CSV or Excel file and produces a cleaner, more structured copy — repeated headers stripped, ragged tables squared up — while the original stays exactly as it was.
Live — publicly reachable at its own address, and its production deployment was re-verified directly before this page said so. Cleans PDF, CSV and XLSX files in the browser; other formats are declined up front rather than half-supported.
Last verified
What makes it different
The file is processed in your own browser and never uploaded. Every change is listed so you can see what was done, anything uncertain is held for your review instead of silently applied, and the original bytes are never touched.
Who it is for
- Anyone handed a spreadsheet or export that needs tidying before it can be used
- People working with files they would not upload to an unknown server — invoices, reports, member lists
What it does today
Each of these is tied to the evidence at the foot of this page, checked on the date shown above.
Cleans files in the browser
PDF, CSV and XLSX files are parsed, cleaned and exported on your own machine, in background workers, so the page stays responsive and the file stays with you.
Keeps the original intact
Cleaning produces a copy. The file you dropped in is never modified, and you can compare what changed before downloading anything.
Shows its work
Every applied change is listed in plain language, and suggestions the system is less confident about are held for your review rather than applied silently.
What it does not do
The unfinished parts, stated here rather than discovered later.
- Supports PDF, CSV and XLSX only; other formats — including older .xls, Word and PowerPoint files — are declined rather than converted.
- Scanned, image-only PDFs are recognised as such but not read: there is no text recognition, and the tool says so instead of producing an empty result.
- Password-protected files are not supported and are reported as such rather than opened.
- Very large files are bounded by what a browser can hold in memory; near the limit, Clean warns and degrades honestly rather than partially processing.
- No independent review has been carried out; the privacy behaviour described here rests on the project's own build records and checks.
How it is paid for
Free
Free to use, with no account and no payment anywhere in it. It costs little to serve because the work happens in your browser rather than on a server, and it currently runs at the founder's own expense.
Similar category, different approach
Both are far more capable in their own territory. Clean differs in scope and posture: one narrow job — a cleaner copy of a supported file — done in the browser with nothing uploaded, no install and no account, and with every applied change listed.
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Evidence
Sources for this page
Returns HTTP 200 over a valid certificate with a strict content security policy. The homepage describes a free, privacy-first tool that cleans messy PDF, CSV and Excel files directly in the browser, with files never leaving the device.
Checked 30 August 2026
- Clean repository — inspected directlyprivate source — described, not linked
The Clean build was inspected at its release commit. Parsing, cleaning and export for PDF, CSV and XLSX run in the browser in web workers; the original file is kept unchanged, every applied change is logged, and the deployment serves static assets only with no server-side processing of file contents.
Checked 30 August 2026