Privacy
How Convertly Guru handles your files
Short version: it does not handle them at all. Your files are opened, converted and saved entirely by your own browser, on your own device.
What happens when you convert a file
When you drop a file onto the page, the browser reads it into memory in the current tab. The conversion uses APIs built into the browser itself: Canvas 2D for images, the Web Audio API for sound, MediaRecorder for video, and a PDF library that runs as ordinary JavaScript on your machine. The finished file is handed back through the normal download mechanism. At no point is the file transmitted over the network, written to a server, or placed in any cloud storage. Closing the tab discards everything.
What is stored
Your files
Nothing. They exist only in the memory of the open tab and are released when you remove them from the queue or close the page.
Site preferences
One entry in your browser's local storage recording whether you chose the light or dark theme. It never leaves your device and can be cleared with your browsing data at any time.
Accounts
There are none. No sign-up, no email address, no password, so there is no account database that could be breached.
Cookies
The site sets no tracking or advertising cookies.
Why this is worth caring about
Files people convert are often exactly the files they should not upload: scanned passports, medical letters, payslips, customer exports, contracts, unreleased footage. A conventional converter takes a copy of that file onto infrastructure you do not control, governed by a retention policy you have to take on trust. Running the conversion locally removes the question entirely.
Verify it yourself
You do not have to take this on faith. Open your browser's developer tools, switch to the Network tab, and convert a file. You will see the page's own assets load and nothing else. Alternatively, load the page, disconnect from the internet, and convert a file anyway. It still works, because there is no server involved.
Privacy questions
Are my files uploaded to a server?
No. Every conversion runs inside your browser tab using the Canvas, Web Audio and MediaRecorder APIs that are built into the browser itself. Your file is read into memory, converted, and offered back to you as a download. It is never transmitted anywhere, and nothing is written to disk or to any storage service.
Do I need an account?
No. There is no sign-up, no email address and no login. Open the page, drop a file, download the result.
Is there a file size limit?
There is no artificial limit. The practical ceiling is your device's available memory, because the whole file is held in RAM while it converts. Very large video files are the most demanding.
Does it work offline?
Yes, once the page has loaded. Because no server is involved in the conversion, you can disconnect and the tools keep working.
Are there watermarks or usage caps?
No. Output files are unmodified, and you can convert as many files as you like.