Turn TSV files into HTML in a couple of clicks. TSV is the same idea as CSV but tab-delimited — safer for text containing commas; HTML is the markup language of the web. Content is preserved and the layout is rebuilt for the target format.
Drop your files here
TSV files (.tsv, .tab) · up to 100 MB each
or paste files from your clipboard
Ready when you are
Drop a TSV file above and FileTools360 will turn it into HTML — right here on your device, without uploading anything.
Drag them onto the drop area, choose them from your device, or paste them from your clipboard. You can queue several at once. Nothing is sent anywhere — the file stays on this device.
The defaults suit most people. Open Advanced to control delimiter and header handling.
Press Convert. Everything happens on your own device — nothing is uploaded. Download files one by one, or grab them all as a ZIP.
Privacy, in plain words
What “uploaded” normally means. On most online converters, pressing the button copies your file across the internet onto a computer owned by that website. That copy is what the word “upload” means, and it is the part nobody explains.
What happens instead. This site does not do it. There is no server here that receives files, so your TSV file is read, converted and handed back by the browser you are using right now. It never travels — so there is no copy to store, read, leak or hand over.
Check it yourself in ten seconds
Turn off your Wi-Fi after this page has loaded, then convert a file anyway. It still works, because everything needed is already on your device.
The longer explanation of how this works, and the full detail of what is and is not stored on the privacy page.
A spreadsheet is rarely about one person. It is usually about hundreds of them, which is what turns an ordinary file into a reportable data breach. It matters more than it sounds, because of what spreadsheets usually are:
Supplier pricing
commercially confidential by contract, usually
Donor and volunteer databases
people who trusted an organisation, not a converter
Payroll
every colleague's salary, in one file
Customer and member lists
names, emails, phone numbers, addresses
A file that is never sent cannot be kept, leaked, subpoenaed or used to train anything. That is a property of how this works, not a promise about how carefully it is run.
TSV is CSV with tab characters as separators. Because tabs almost never appear inside data fields, it sidesteps most of CSV's quoting problems.
HTML is the markup language of the web, describing document structure — headings, paragraphs, lists, links — which browsers then render.
The two formats solve different problems, which is why converting between them involves trade-offs rather than a straight upgrade.
| Property | Source | Target |
|---|---|---|
| Compression | None | None |
| Introduced | — | 1993 |
| Browser support | Wide, especially in data tooling. | Every browser. |
People make this switch when they run into the limits of TSV: handing files to non-technical recipients. HTML is the better fit when publishing on the web or generating documents programmatically.
The content survives; the layout is rebuilt. Text and the order it is read in carry across, but HTML lays the page out again rather than reproducing TSV's exact positioning, so line breaks, page breaks and spacing will differ. Anything that depends on precise placement is worth checking in the result.
Source
Like CSV but tab-delimited — safer for text with commas.
Target
The markup language of the web.
Values are type-sniffed, so numbers and dates land as real numbers and dates rather than text.
Good to know
Runs entirely in your browser
527 converters and tools65 file formatsnothing ever uploaded.