CSS Filter Duotone Generator
Create duotone-style CSS filter chains for image experiments.
Duotone image effects with filters
Duotone — mapping an image to two colors — is a striking, on-brand way to treat photos, and you can approximate it with a chain of CSS filters, no image editor required. This generator builds that filter chain for experimenting with duotone-style looks.
Filter-based duotone is quick and non-destructive, so you can preview treatments before committing to edited assets. Tune the chain and copy the CSS onto an image. For true two-color mapping, pair it with blend modes or SVG.
Copy-ready CSS
The CSS is generated live in your browser as you adjust the controls, so there is nothing to install and nothing is uploaded. Copy the ready-to-use declaration straight into your stylesheet, tweak the values to taste, and it will render exactly as it does in the preview here.
Frequently Asked Questions
What does the css filter duotone generator do?
It generates CSS from the options you choose and previews the result directly in your browser.
Can I use the CSS in production?
Yes. Copy the generated CSS as a starting point, then review naming, browser support, and design-system fit before shipping.
Does this upload my design values?
No. The generator runs locally in your browser and does not send your input to a server.
Is this free?
Yes. It is a free browser utility with no account required.
Practical utilities for front-end design and implementation work.