Design · Web app
Grainrad
In-browser WebGPU tool for real-time ASCII, dithering, and retro visual effects
Grainrad is a free web-based creative tool that applies real-time shaders and retro styling to images, videos, and 3D files. It runs on WebGPU/WebGL to process media at 60fps directly in the browser without requiring external software installations or server-side rendering. Users can tweak a wide variety of effects—including ASCII, dithering, halftone, and VHS filters—and export to image, video, SVG, text, or Three.js code.
What it's for
- Convert images or video clips into animated ASCII or text art
- Apply dithering, halftone, and pixel-sorting retro effects to graphic assets
- Add film grain, scanlines, bloom, and chromatic aberration to visual media
- Export stylized 3D models or graphics directly as interactive Three.js HTML
Features
- Real-time processing powered by WebGPU and WebGL2 at up to 60fps
- Wide selection of effects including ASCII, Dithering, Halftone, Matrix Rain, Pixel Sort, and VHS
- Broad file input support covering PNG, JPG, GIF, MP4, WebM, and 3D GLB files
- Detailed image adjustments for brightness, contrast, saturation, sharpness, gamma, and hue
- Customizable post-processing layers including grain, bloom, and scanlines
- Multiple export formats: PNG, JPEG, GIF, MP4, SVG, plain Text, and Three.js HTML
Pricing
Free to use in the browser
Details
- Type
- Web app
- Category
- Design
- Topic
- Image Processing
- Open source
- No
- Platforms
- Web
- For
- Motion designers, graphic designers, digital artists, and creative technologists
- Alternative to
- Photoshop, After Effects
- Tags
- ascii, shaders, webgpu, retro, dithering, video effects
Why it was saved
- @timhosqo: Allows designers to quickly apply stylized visual effects like ASCII art, dithering, and film grain directly in the browser without paid software or heavy rendering times.
- @almmaasoglu: Fast in-browser image effect processor for making ASCII-art/dithered visuals; no signup or payment, free forever, export to PNG/JPG. More effects and better ASCII/dither algorithms promised.
Compare
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