Black and White Converter changes the picture you already have
Make a grayscale copy for a print form or a simple graphic.
Color is removed. The file stays a normal image.
What Black and White Converter cannot recover
This is grayscale, not a one-bit fax. Skin tones and skies lose their color on purpose.
Black and White Converter without the extra promises
Black and White Converter sits on this site because Image and Image are not interchangeable, even when they look similar in a file list. Make a grayscale copy for a print form or a simple graphic. Resize, crop, rotate, compress, or change a photo when the next form has rules. Resize, crop, rotate, compress, or change a photo when the next form has rules.
Color is removed. The file stays a normal image.
Read this about Image before you upload
Image tools redraw the picture in your browser. They do not upload the file. These tools do not recover detail the camera never captured. Upscale and HD modes enlarge pixels. They are not AI reconstruction.
Keep the original photo.
Read this about Image before you send the download
Black and White Converter keeps the format family as Image and still changes the file you can use. Resize, crop, rotate, compress, or change a photo when the next form has rules. The original pixels are what you have to work with. The edit is local.
Compress from the best original, once. A second lossy save softens detail that is already gone.
Keep, check, then delete
People lose time when they convert before they know which rule failed. Size, pixel dimensions, codec, font encoding, and layout are different rules. Black and White Converter only addresses the Image to Image step. Make a grayscale copy for a print form or a simple graphic. Color is removed. The file stays a normal image. This is grayscale, not a one-bit fax. Skin tones and skies lose their color on purpose. The file stays in your browser and is not uploaded. The limit is 100 MB. Keep the original until the download has been opened in the program that will use it. Do the test with a short or simple file first when the real file is large. A one-page PDF, a single photo, or a one-minute clip will show you whether the output is the kind of file you needed. After that test looks right, run the real file once. Keep both the Image original and the Image download until the receiving person or the upload form accepts it. Photos fail uploads for three separate reasons: the format name, the pixel size, and the kilobyte size. Black and White Converter only does the Image to Image step. If the form also prints a pixel size or a 20 KB or 50 KB cap, do that step with the matching tool, starting from the original each time. A second lossy save will not recover detail.
Here is the decision for Black and White Converter. You start with Image and you stop when a real program accepts Image. The original pixels are what you have to work with. The edit is local. These tools do not recover detail the camera never captured. Upscale and HD modes enlarge pixels. They are not AI reconstruction. If those two sentences describe a tradeoff you do not want, do not convert. Renaming the extension by hand will not do this job. Running the tool twice on its own output will not do it either.
This is grayscale, not a one-bit fax. Skin tones and skies lose their color on purpose.
A related step, if you still need one, is Image Compressor.
Other jobs start from the homepage, where each tool is named for the conversion it actually does.