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Free file converter

Convert images, documents, spreadsheets, archives, and audio in your browser. Free, no sign-up, and your files never leave your device.

Conversions you can do

Images

Convert, resize, and compress images.

Data and text

Convert between text and structured data formats such as CSV, JSON, and YAML.

Spreadsheets

Convert spreadsheets to and from CSV, JSON, and XLSX.

PDF

Merge, split, rotate, and reorder PDF pages.

Archives

Create, inspect, and extract ZIP archives.

Audio

Convert between audio formats and extract audio from video.

How your files are handled

Every tool on this site converts files locally on your device, using your browser. Your files are never uploaded: there is no conversion server to upload them to. That also means large files are not slowed down by your connection, and nothing you convert can be retained by anyone.

You do not have to take that on trust. Open your browser's developer tools, switch to the Network panel with no filter applied, and run a conversion. No request carries your file, because there is nowhere for it to go.

Check it yourself, do not take our word

Every converter here claims the same thing: your file is never uploaded. That claim is worth exactly as much as your ability to test it, so here is how. Open your browser's developer tools, switch to the Network panel, clear it, and convert a file. You will see requests for the page and for the code that does the converting. You will not see a request carrying your file, because none is made.

No cloud converter can offer you that check, because on those sites the upload is the product. It is also why some conversions are missing here rather than outsourced: a format a browser cannot handle would mean sending your file somewhere, and that is the one thing this site will not do.

Questions people ask

Is this really free, or is there a catch?
It is free, and the catch is advertising: the site is paid for by ads placed beside the tools, never inside them and never between choosing a file and converting it. There is no account, no premium tier, no credit system and no watermark. Nothing is held back for a payment that does not exist.
How can my files not be uploaded?
Because browsers can do this work now. Reading a file, decoding an image, re-encoding it, writing a ZIP and running FFmpeg all happen in JavaScript and WebAssembly on your own machine. The site has no conversion server to upload to — not a policy about servers, an absence of them.
Do you keep or look at my files?
We never receive them, so there is nothing to keep or look at. There is no database, no storage bucket, no conversion queue and no log of what you converted. Closing the tab is all the deleting there is to do.
Why are some conversions missing?
Because a browser cannot do them reliably, and outsourcing them would break the only promise this site makes. HEIC needs a decoder no browser ships. PDF to Word needs layout reconstruction that goes wrong quietly. A missing tool is an honest gap rather than a hidden upload.
Does it work on a phone?
Yes, and the tools are built for it: touch targets, no drag-and-drop-only workflows, and file limits chosen for what a phone can hold rather than what a laptop can. Memory is the real ceiling on a phone, so a very large file may fail there and succeed on a computer.
What happens if I lose my connection?
Nothing, once the page has loaded. The conversion runs on your device, so it finishes without a network. The audio tools are the exception on the first run only, because the FFmpeg engine is a separate download; after that they work offline too.
Do I need to install anything?
No. There is nothing to download, nothing to sign up for and nothing to uninstall afterwards. The tools are web pages, and the code that converts arrives with the page like any other part of it.
Which browsers does this work in?
Recent versions of Chrome, Edge, Firefox and Safari. Where browsers disagree — and they disagree most about which image formats they can write — each tool asks yours what it can actually do before offering an option, rather than handing you a file that does not match its extension.

Ads on this site

Advertising pays for this site. The ads may store cookies to choose what to show you and to avoid repeating themselves. Your files are not involved in any of it — they never leave your browser, whichever button you press, and every tool works either way.

What this covers