Every Excel task, solved in your browser
Convert, merge, clean, protect and analyse spreadsheets without uploading a single byte. Everything runs locally — which is why finance and HR teams can use it on data they could never send to a server.
- Files never leave your device
- Results in under a second
- No signup, no watermark
66
Tools available
12
File formats supported
None
Bytes uploaded
Free
Cost to use
Browse
Find the tool by what you need to do
Nine categories covering the entire lifecycle of a spreadsheet, from the messy export you were sent to the clean report you send back.
Most used
The tools people come back for
Ranked by real monthly usage across all accounts. Every one of them is free and runs without an upload.
Why it's different
Local processing is not a feature. It is the architecture.
Most online Excel tools upload your workbook, process it on a server and promise to delete it afterwards. We removed the upload entirely, which removes the promise you would otherwise have to trust.
Your data never leaves the device
Processing happens in a Web Worker inside your tab. There is no upload endpoint to breach, no retention policy to trust, and no data transfer to disclose in a DPIA.
Faster than uploading would be
A 40 MB workbook converts in about a second because the bytes never cross a network. No queue, no progress bar theatre, no rate limit on file size.
Built for regulated teams
WCAG 2.2 AA, a signed DPA on Business plans, SSO, audit logs and a documented sub-processor list. The things procurement actually asks about.
An API when you outgrow the UI
The same conversion and validation engines are available as a REST API with SDK examples, idempotency keys and predictable rate limits.
How it works
Four steps, about thirty seconds
No account, no email, no credit card. The workflow is the same whether you are converting one file or five hundred.
- 1
Pick a tool
Search or browse 66 tools grouped by what you are trying to do — convert, clean, merge, analyse, protect or generate.
- 2
Drop your file
The file is read directly by your browser. Nothing is uploaded, so there is no queue, no size negotiation and no waiting.
- 3
Set your options
Every tool shows a live preview of the result. Adjust delimiters, columns or rules and watch the output update before you commit.
- 4
Download the result
Get a clean file back in seconds. No watermark, no email gate, and no account needed unless you want to save your settings.
AI assistant
An Excel expert that has read your sheet
Ask a question about your data, get a broken formula diagnosed, or have messy company names standardised. Only column names and a small sample are ever sent — never the full file.
FAQ
Questions people ask before their first upload
Or rather, before their first non-upload.
Still unsure? Ask us directly — we answer within one business day.
Start with the tool you needed ten minutes ago
No account. No upload. No watermark. Just drop a file and get the result.
- Free forever tier
- No credit card
- Cancel anytime