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Free Color Quantizer online
Reduce to limited palette.
Use Color Quantizer to reduce to limited palette in seconds, straight from your browser. Drop your file into Color Quantizer, choose your settings, and save the finished file. Color Quantizer processes everything in your own browser, so your data never leaves your device.
- Free to use
- No signup
- No uploads
- Works offline
Why use Color Quantizer
- reduce to limited palette without installing software
- Your file is processed on your device by Color Quantizer, never uploaded
- Color Quantizer needs no account, email address or payment details
- Color Quantizer is batch-friendly: reuse it immediately on the next file
- Color Quantizer is keyboard accessible and screen-reader friendly
- Color Quantizer is free forever, with no watermark on the result
Color Quantizer runs entirely inside your browser. Your file is never uploaded, stored or shared, and nothing is retained once you close the tab.
How to use Color Quantizer
- Add your file Drag your file onto the drop zone or pick it from your device.
- Adjust the options Set the options that control how Color Quantizer handles your input.
- Apply the change Color Quantizer works instantly on your device, with no queue and no upload wait.
- Download the result Save the finished file straight to your device, then reuse the tool as often as you like.
Benefits
Private by design
Your file stays on your device while Color Quantizer works. Color Quantizer never sends it to a server, so confidential work stays confidential.
Instant results
Color Quantizer finishes most jobs in under a second because the work happens on your own hardware.
No signup, no limits
Use Color Quantizer as many times as you want. Color Quantizer asks for no account, adds no watermark and keeps no paid tier gating the output.
Works offline
Once the page has loaded, Color Quantizer keeps working without a connection, which helps on flights and locked-down networks.
Who it is for
For designers
Designers use Color Quantizer to prepare assets for handoff without installing software: reduce to limited palette on a shared or locked-down machine.
For marketers
Color Quantizer helps marketers publish campaign assets quickly, since your file never leaves the laptop it was created on.
For freelancers
Color Quantizer helps freelancers send client deliverables quickly, since your file never leaves the laptop it was created on.
How it works
Color Quantizer loads your file into memory, applies the change you requested to the underlying data rather than to a screenshot of it, and writes a fresh copy for download. Your original stays untouched on disk, and every step of Color Quantizer happens inside your browser sandbox.
Frequently asked questions
Is Color Quantizer free to use?
Yes. Color Quantizer is completely free with no account, no trial and no usage cap. Every feature on this page is available on the first visit.
Does Color Quantizer upload your file to a server?
No. Color Quantizer processes your file inside your browser, so it never reaches a DocTools server. That also means the tool keeps working if your connection drops mid-task.
Is there a file size limit?
The practical ceiling is your device's available memory rather than a server quota. Files up to roughly 100 MB work comfortably on a typical laptop in Color Quantizer.
Do I need to install anything to use Color Quantizer?
No installation is needed. Color Quantizer runs in Chrome, Edge, Firefox and Safari, on desktop and on mobile, with no extension or plugin.
Can I use Color Quantizer on a phone or tablet?
Yes. The Color Quantizer interface adapts to small screens and supports touch input, though very large jobs are faster on a desktop browser.
What happens to your file when I close the tab?
It is discarded. Color Quantizer keeps everything in temporary browser memory, so closing the tab removes every trace of the session.
Related tools
- Image Saturation | Adjust color saturation from gray to vivid
- Image Color Palette | Extract dominant colors from any image
- Image Color Inverter | Invert colors for a negative effect
Last updated: 2026-09-07