Grayscale Image and Black & White Converter
Convert images to grayscale, high-contrast black and white, or sepia with live browser preview.
Related guides: How to Make an Image Black and White
How to use it
- Upload an image.
- Choose grayscale, high contrast, or sepia.
- Adjust intensity and contrast, then download.
Related tools
Choose the right black and white look
This converter is useful when you need a consistent grayscale image for printing, documentation, thumbnails, school work, product drafts, or a simple black-and-white creative effect. Classic grayscale keeps the image natural, high contrast makes lines and shapes stronger, and sepia adds a warmer archival tone.
For portraits, avoid pushing contrast too far because it can make skin texture harsh. For screenshots, receipts, sketches, and scanned notes, higher contrast can make text and edges easier to read. If you are preparing an image for OCR, test the result with Image to Text OCR after converting.
Practical export notes
The preview is rendered locally on canvas, so you can compare presets quickly without uploading your image. Download as PNG when you want crisp edges or transparent areas preserved. If the output file is too large for email or a website, compress it afterward with the Image Compressor.
Grayscale conversion does not repair blur, noise, or faded detail by itself. For old scans, try restoring contrast and sharpness first with Restore Old Photos, then return here for a cleaner black-and-white version.
Grayscale color palette levels
A grayscale palette maps colors to shades of gray. Classic grayscale uses 256 levels from pure black to pure white, while a limited palette might use 64, 32, or 16 shades for a retro or posterized look. Fewer levels create stronger banding but smaller files.
This converter applies a continuous grayscale mapping, not a fixed palette. For a limited palette effect, reduce the contrast and intensity sliders to compress the tonal range, then export the PNG. The result approximates a reduced-level grayscale without dithering tools or indexed-color export.
Check readability after conversion
After applying a black-and-white effect, look at the details that matter most: faces, small labels, product edges, handwriting, or document text. Some colors that look different in the original can become nearly the same gray, so charts, badges, and colored labels may need extra contrast before export.
For print, test a smaller copy before preparing the final file. Dark backgrounds can use a lot of ink, and very light gray text may disappear on office printers. If the image is for a website, compare PNG quality and file size so the grayscale version stays sharp without becoming unnecessarily large.
Convert JPG to black and white
To convert a color JPG to black and white, upload the image to the converter above and select the Grayscale mode. The tool applies a luminance-weighted conversion that preserves perceived brightness: 0.299R + 0.587G + 0.114B. Adjust contrast and intensity to control the tonal range.
For artistic black and white, increase contrast to deepen shadows and brighten highlights. For a vintage look, reduce contrast and add a slight warm tint. The converter also supports PNG, WebP, and GIF input formats. Export as PNG for lossless quality or JPG for smaller file sizes.