About this tool
Apply duotone, dithering, posterize, glitch, noise, pixelate, vignette, sepia, B&W and fine colour adjustments to photos in batches.
Optional brightness, contrast, saturation, hue and gamma adjustments run first, then one effect: Floyd–Steinberg error diffusion for dithering, a two-colour luminance map for duotone, seeded channel shifts for glitch and noise (so results repeat), block averaging for pixelate.
Example: a portrait with duotone #1e1b4b → #f472b6 becomes a deep-blue-to-pink poster look.
Use “Pixelate” only for creative looks; to hide private details permanently, use the Redact tool.
Quick steps
- Choose your files — they stay on your device.
- Set the options and check the preview or the test results.
- Download the result. Your original files are never changed.
Files are processed in your browser and are not uploaded to 1CLIK.
FAQ
How does the Image Colour Effects (duotone, dither, glitch, noise…) work?
Optional brightness, contrast, saturation, hue and gamma adjustments run first, then one effect: Floyd–Steinberg error diffusion for dithering, a two-colour luminance map for duotone, seeded channel shifts for glitch and noise (so results repeat), block averaging for pixelate.
What should I keep in mind?
Use “Pixelate” only for creative looks; to hide private details permanently, use the Redact tool.
Are my files uploaded?
No. Everything happens on your device; nothing is deleted or overwritten, and results are new downloads.