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ScanMaster

Black & White Image

True black-and-white conversion with a threshold slider.

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About Black & White Image

Black & White Image is here for editing a picture one job at a time: true black-and-white conversion with a threshold slider. It takes JPG, JPEG, PNG and 9 more and produces JPG, JPEG, PNG, WEBP. Files up to 100 MB each, 50 at a time, and the work happens on your own machine rather than on a server.

Reach for it when editing a picture one job at a time is a one-off rather than a workflow: one file, one result, no account in front of it.

How to use Black & White Image in 3 steps

  1. Drop the picture on the page — JPG, JPEG, PNG and 9 more, up to 50 at a time.
  2. Set the output format and Quality — the black-and-white threshold is applied in one pass.
  3. Press Apply Bw and download the result in whichever of JPG, JPEG, PNG, WEBP suits you.

What you get with Black & White Image

  • Accepts JPG, JPEG, PNG and 9 more in one go
  • Output in JPG, JPEG, PNG, WEBP
  • Batch up to 50 files, returned together
  • 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

Black & White Image: questions

Which file types does Black & White Image accept?
The drop area takes JPG, JPEG, PNG and 9 more. Files are read from your device in the browser, so the format has to be one a browser can decode — that is why the accepted list on this page is finite and honest rather than "everything".
What do I get back from Black & White Image?
The result is JPG, JPEG, PNG, WEBP, offered as a download the moment the work finishes. Multiple results come back together rather than as fifty separate save dialogs.
How big a file can I use?
Up to 100 MB per file and 50 files per batch. There is no server queue behind that limit; the practical ceiling is your browser's memory, so split unusually large documents into two runs.
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.