I work on OnePassApps. We build browser studios that process files in the tab instead of uploading them, and this is the Image Studio's background remover.
There is a specific reason this tool exists in the form it does: the subject is found by a model that runs on your machine.
What the tab actually says
Open the Image Studio and the page line is plain enough: "Convert, compress, resize, crop and clean images in your browser. Nothing leaves this tab."
The Remove background tab is laid out in three stages:
01 Source
No image yet. Drop one on the stage or browse for it.
02 On-device model
The subject is found by a small model that runs in this browser. It downloads once, the first time you use it, and your image never leaves the device.
Output is always a PNG with transparent edges. Check fine details such as hair and soft edges before you use it.
03 Result
The new copy's size and format appear here.
Add an image to start. Your original stays untouched.
The file picker accepts JPEG, PNG or WebP · up to 25 MiB and 25 megapixels, and the stage repeats the promise: "Processing stays in this browser."
Running it for real
I did not want to write about this tool on the strength of the copy alone, so I loaded a test image and ran it in the tab.
The source stage read:
probe-bg.png
PNG · 240 × 240 · 5.3 KiBImage ready. Processing stays in this browser.
The first run had to fetch the model, which the page calls out plainly:
Loading the background removal tool…
Removing background…
Then the result panel:
Ready
Before 5.3 KiB PNG
After 8.8 KiB PNGDimensions 240 × 240
File name probe-bg.png
Background removed in 11.0 s
Finished. Download a new copy; the original stays unchanged.
The output line reads "PNG · 240 × 240 · 8.8 KiB · 66% larger" with a Download PNG button and a Run again button. The file got bigger on purpose: a flat background replaced by transparency compresses worse than solid pixels, and that is exactly what the number tells you. It is also the reason the output is always PNG rather than whatever you uploaded in.
I also checked the pixels rather than trusting the label. My test image was a flat blue square with an orange circle in the middle, so the honest expectation was that the blue would go transparent and the circle would stay solid. Read back from the downloaded result, 41,698 of the 57,600 pixels are fully transparent (72.4%) and 15,089 are opaque - the blue is gone and the circle survived. The original file, checked the same way, was 0% transparent.
That is a blunt test image, not a portrait. Do not take it as a quality benchmark - the tool's own warning about hair and soft edges is the one that matters.
Two things worth knowing before you use it on something important. First, the model downloads once, so the very first run is slower than later ones. Second, the page asks you to check the edges yourself - fine hair and soft edges are where a small in-browser model is most likely to need a human eye.
What it costs
The plan block on the page reads:
FREE PROMOTIONAL PERIOD
Standard is free right now
$0 / month100,000 credits every 30 days · No end date set · No card required
No automatic paid subscription. Existing paid subscriptions keep their terms.
No card, no end date on the free tier, and nothing to cancel.
The rest of the Image Studio
The same tab strip carries Convert, Compress, Resize, Crop, Remove background, Remove metadata and Images to PDF - all in the same browser tab, all without an upload.
If you want to try it: Remove a background in the browser
For the longer walkthroughs, including what each tool does and does not do: OnePassApps app guides
Again, to be explicit about who is writing this: I work on OnePassApps, the team behind app.onepassapps.com.
