Black and White Image Converter
Convert any image to grayscale black & white in your browser.
Black and White Image Converter is a browser-based image tool on ImgToolsBase. Convert any image to grayscale black & white in your browser. To use it, upload or drop your image and view the result directly in your browser — no signup and nothing to install.
How this tool works
What it does
Black and White Image Converter converts the whole image to greyscale.
Transparency
Kept for PNG/WebP only with source alpha and a Transparent background; filled for JPG.
Output
PNG/JPG/WebP with quality.
Privacy & metadata
Everything runs in your browser on a canvas — your image is never uploaded. Browser canvas export strips EXIF, GPS, and most other source metadata.
Black and White Image Converter in your browser
Black and White Image Converter converts a photo to black and white (greyscale) on a browser canvas. Everything runs in your browser on a canvas — your image is never uploaded. Choose your output format: PNG and WebP can preserve transparency only when the source has an alpha channel and Background is set to Transparent, while JPG flattens transparent areas onto the selected background colour.
Greyscale removes colour while keeping tonal detail. Because JPG cannot store transparency, transparent areas are filled with your chosen background colour for JPG output; PNG and WebP can preserve transparency when the source has an alpha channel and Background is set to Transparent.
Black and White Image Converter shows the output dimensions, the output format, and whether transparency was kept or filled. Browser canvas export strips EXIF, GPS, and most other source metadata. Animated GIFs are processed as a single still frame; animation is not preserved.
How to use Black and White Image Converter
- Upload your image into Black and White Image Converter — click, press Enter, or drag it in.
- Pick an output format and background mode; PNG/WebP can preserve transparency when the source has alpha and Transparent background is selected.
- If you choose JPG, set the colour that fills any transparent areas.
- Click Process, then download the black-and-white image.
Why use Black and White Image Converter
Removes colour while keeping tones.
PNG/WebP can preserve transparency only when source alpha exists and Transparent background is selected; JPG flattens.
Pick the colour behind transparency for JPG.
Everything runs in your browser on a canvas — your image is never uploaded.
Common uses for Black and White Image Converter
Give photos a timeless monochrome style.
Convert scans to neutral greyscale.
Emphasise shape and tone over colour.
Prepare a black-and-white version for printing.
Frequently asked questions
Does Black and White Image Converter keep transparency?
PNG and WebP output can keep transparency when the source has an alpha channel and Background is set to Transparent. JPG cannot store transparency, so transparent areas are filled with the background colour you choose.
Is the conversion in Black and White Image Converter reversible?
No. Greyscale discards colour information; keep your original if you may want the colours back.
Can I export Black and White Image Converter as PNG instead of JPG?
Yes. Choose PNG, JPG, WebP, or same-as-input. PNG can preserve transparency when the source has an alpha channel and Background is set to Transparent.
Are my images uploaded by Black and White Image Converter?
No — Black and White Image Converter converts your image in your browser on a canvas; nothing is uploaded.
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