Can I process several files at once?

Yes, up to 50 files in a batch, each no larger than 100 MB. Results come back together instead of one save dialog per file.

Is it safe to use for a document with personal details in it?

That is the design goal: the document stays on your device, so a statement, a contract or an ID photo is never transmitted for processing. Nothing here needs an internet connection once the page has loaded, apart from engines that fetch their own model data.

Will it work on a phone?

Yes. The layout adapts to a small screen and the processing runs in the mobile browser, so a photo or a downloaded document can be handled on the device it arrived on.

Because the expensive part — the server farm — does not exist. Processing runs on your device, so the site can stay free without a signup wall in front of it or an upsell in the middle of a job.

Image Comparison Tool

Side-by-side and slider comparison of two images.

Drop the two images to compare

First file = left/original, second = right/edited

Add exactly two images.

Loading tool…

About Image Comparison Tool

Image Comparison Tool is here for putting two images side by side to find the difference: side-by-side and slider comparison of two images. The answer is shown on the page — there is no converted file to download. Files up to 100 MB each, 50 at a time, and the work happens on your own machine rather than on a server.

Useful when the job is putting two images side by side to find the difference and you would rather not install software, join a queue or hand the file to a stranger.

How to use Image Comparison Tool in 3 steps

Drop the picture on the page — JPG, JPEG, PNG and 9 more works here, up to 100 MB.
Set a second image, then the slider or the side-by-side view.
Press Compare the images and read the answer on the screen; nothing leaves your device to be computed.

What you get with Image Comparison Tool

Accepts JPG, JPEG, PNG and 9 more in one go
Answers on the page, with no file to open afterwards
Runs in your browser — the file is never uploaded
Free to use, with no signup and no account
No watermark or logo added to your output
Works on desktop and mobile, no install

Image Comparison Tool: questions

Can I process several files at once?: Yes, up to 50 files in a batch, each no larger than 100 MB. Results come back together instead of one save dialog per file.
Is it safe to use for a document with personal details in it?: That is the design goal: the document stays on your device, so a statement, a contract or an ID photo is never transmitted for processing. Nothing here needs an internet connection once the page has loaded, apart from engines that fetch their own model data.
Will it work on a phone?: Yes. The layout adapts to a small screen and the processing runs in the mobile browser, so a photo or a downloaded document can be handled on the device it arrived on.
Why is it free?: Because the expensive part — the server farm — does not exist. Processing runs on your device, so the site can stay free without a signup wall in front of it or an upsell in the middle of a job.