CSS Filter Generator
Free online CSS image filter tool. Preview filter effects in real time and generate CSS code with one click. Supports 10 filter parameters, 10 preset schemes, drag & reorder, multi-image batch preview, Undo/Redo and more.
What is the Online CSS Filter Generator?
CSS Filter Generator is a comprehensive free online tool that helps you add CSS filter effects to images through visual adjustments. No coding required — adjust sliders and parameters in real time, and generate ready-to-use CSS code with one click.
Key Features
- 10 Filter Parameters — blur, brightness, contrast, grayscale, hue-rotate, invert, opacity, saturate, sepia, drop-shadow (with X/Y/blur/color support)
- 10 Preset Schemes — Vintage, Black & White, Fresh, Cool Tone, Warm Tone, Sepia, Film, High Contrast, Bleach, Lomo
- Drag & Reorder — Drag filter items to adjust application order, with individual enable/disable toggle
- Three Compare Modes — Side by Side, Slider Compare (drag divider), Overlay Compare (hover to reveal original)
- Multi-image Batch Preview — Load up to 3 images at once, apply filters uniformly
- Undo/Redo — Supports 20-step history, Ctrl+Z / Ctrl+Shift+Z
- Color Filter Converter — Input source and target colors to calculate approximate filter values
- Custom Scheme Management — Save/load/delete custom filter schemes in browser local storage
- URL Hash Sharing — Share current filter configuration via URL parameters
- Download PNG — Export filtered image as PNG
Privacy Protection
All image processing is done entirely in your browser. No images are uploaded to any server. Use with confidence.
Ctrl+Z/Ctrl+Shift+Z to undo/redo, Ctrl+H to toggle hover compare, Ctrl+R to reset all filters, Ctrl+C to copy CSS code.
How to use
- 1. Adjust the filter sliders
- 2. Watch the preview image
- 3. Copy the generated filter CSS
Example
Blur 4px + grayscale 60% → `filter: blur(4px) grayscale(60%);`
FAQ
Does it modify the source image?
No, filters only affect the preview and the exported CSS.
Does it work on mobile?
Yes, it emits standard CSS supported by mobile browsers.