Image Color Optimizer: Web-Ready sRGB Colour
Prepare images for consistent colour on the web: convert to sRGB 8-bit, drop embedded colour profiles and compress at quality 85.
Loading Image Color Optimizer (sRGB, 8-bit)…
Your files never leave your device
How to optimize image colour for the web
Colour on the web works best in one shared space: sRGB at 8 bits per channel. Photos exported from cameras and editing software are often tagged with wider profiles such as Adobe RGB or Display P3, or carry large embedded ICC profiles and 16-bit channels. Viewers that ignore the profile show such images washed out or oversaturated, and the extra data adds weight without any benefit on a typical screen.
The Color Optimizer redraws each image through the browser's colour-managed canvas, which renders it into sRGB, and encodes the result as a standard 8-bit file without an embedded profile. JPG and WebP are compressed at quality 85 to preserve subtle gradients and skin tones; PNG files are reduced to a 256-colour palette at that setting, which suits graphics, or saved losslessly at quality 100.
How to use the Image Color Optimizer (sRGB, 8-bit)
- Drop your images onto the upload area, click it to choose files, or paste an image with Ctrl+V. This page accepts JPG, PNG, WebP, GIF and BMP files, many at once and up to 80 MB each.
- Keep quality 85 for photos where colour matters. For PNG photos or detailed gradients set quality to 100 so that no palette reduction is applied.
- Compare in the before/after view, especially skies, skin and brand colours, and use Format if you also want to switch to WebP for smaller files.
- Check the result with the before/after slider: drag the divider across the preview and read the new dimensions, file size, quality and percentage saved underneath. Any change to the settings re-processes every image automatically.
- Download a single image, or use Download all (ZIP) for the whole batch. Under More options you can also set a DPI value and a file-name pattern with {name}, {w} and {h}.
When colour optimization helps
- Exports from Lightroom or Photoshop in Adobe RGB. Converting to sRGB avoids dull colours in browsers and apps that do not read the profile.
- Product photos. Consistent sRGB output keeps fabrics and packaging close to how they look on most screens.
- Heavy PNG and TIFF exports. 16-bit channels and embedded profiles add weight that screens never use.
The conversion relies on the browser's colour management, which current Chrome, Edge, Firefox and Safari apply when drawing images. For print work in CMYK or wide-gamut output, use a professional editor instead.
Private, free and fast
The whole job runs in your browser: images are decoded, resized and re-encoded on your own device, so nothing is uploaded to a server. There is no sign-up, no watermark and no daily limit, and location and camera data (EXIF) are removed from every result.
Features
- Renders images into sRGB colour space
- 8-bit output without embedded ICC profile
- Quality 85 to keep gradients and skin tones
- Lossless PNG at quality 100
- Metadata removed
- Batch processing with ZIP download
Frequently asked questions
Why should web images be sRGB?
sRGB is the default colour space of browsers, operating systems and most screens. Images in other spaces can look dull or oversaturated where the profile is ignored.
Does this tool convert Adobe RGB to sRGB?
The browser's colour management renders the image into sRGB when drawing it, and the output is saved without the original profile. Results depend on the browser honouring the embedded profile, which current major browsers do.
Will my colours change?
Colours inside the sRGB range stay the same; very saturated colours outside it are mapped to the nearest sRGB colour, which is how they appear on most screens anyway.
Is 8-bit colour enough?
For display on screens, yes. 16-bit is useful while editing, not for publishing.
Can I use this for print files?
It is designed for screens. Print workflows in CMYK or with specific profiles should use professional software.
Are my images uploaded to a server?
No. The images are processed locally in your browser and never leave your device. Closing the tab discards them.