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A real-time, node-based video effects compositor for the web built with HTML5, Javascript and WebGL
JavaScript HTML CSS
Latest commit 513d2b8 @brianchirls Merge pull request #103 from brianchirls/develop
Release Summer 2015


Seriously.js is a real-time, node-based video compositor for the web. Inspired by professional software such as After Effects and Nuke, Seriously.js renders high-quality video effects, but allows them to be dynamic and interactive.

Getting Started

Full documentation is in progress at the wiki. Start with the Tutorial and FAQ.


  • Optimized rendering path and GPU accelerated up to 60 frames per second
  • Accept image input from varied sources: video, image, canvas, array, webcam, Three.js
  • Effect parameters accept multiple formats and can monitor HTML form inputs
  • Basic 2D transforms (translate, rotate, scale, skew) on effect nodes
  • Plugin architecture for adding new effects, sources and targets
  • Read pixel array from any node
  • Load with AMD/RequireJS

Included Effects

  • Accumulator
  • Ascii Text
  • Bleach Bypass
  • Blend
  • Brightness/Contrast
  • Channel Mapping
  • Checkerboard Generator
  • Chroma Key
  • Color Complements
  • Color Cube
  • Color Generator
  • Color Look-Up Table
  • Color Select
  • Color Temperature
  • Crop
  • Daltonize
  • Directional Blur
  • Displacement Map
  • Dither
  • Edge Detect
  • Emboss
  • Exposure Adjust
  • Expressions
  • Fader
  • False Color
  • Fast Approximate Anti-Aliasing
  • Film Grain
  • Freeze Frame
  • Gaussian Blur
  • Hex Tiles
  • Highlights/Shadows
  • Hue/Saturation Adjust
  • Invert
  • Kaleidoscope
  • Layers
  • Linear Transfer
  • Luma Key
  • Mirror
  • Night Vision
  • Optical Flow
  • Panorama
  • Pixelate
  • Polar Coordinates
  • Ripple
  • Scanlines
  • Sepia tone
  • Simplex Noise
  • Sketch
  • Split
  • Throttle Frame Rate
  • Tone Adjust
  • TV Glitch
  • Vibrance
  • Vignette
  • White Balance



Seriously.js requires a browser that supports WebGL. Development is targeted to and tested in Firefox (4.0+), Google Chrome (9+), Internet Explorer (11+) and Opera (18+). Safari is expected to support WebGL in the near future.

Even though a browser may support WebGL, the ability to run it depends on the system's graphics card. Seriously.js is heavily optimized, so most modern desktops and notebooks should be sufficient. Older systems may run slower, especially when using high-resolution videos.

Mobile browser support for WebGL has improved. Mobile Firefox, Chrome and Safari have decent support, but they can be slower than desktop versions due to limited system resources.

Seriously.js provides a method to detect browser support and offer descriptive error messages wherever possible.

Cross-Origin Videos and Images

Due to security limitations of WebGL, Seriously.js can only process video or images that are served from the same domain, unless they are served with CORS headers. Firefox, Chrome and Opera support CORS for video, but Safari and Internet Explorer do not, and videos served with CORS are rare. So for now, it is best to host your own video files.


Bug fixes, new features, effects and examples are welcome and appreciated. Please follow the Contributing Guidelines.


Seriously.js is made available under the MIT License.

Individual plugins may be licensed differently. Check source code comments.


Seriously.js is created and maintained by Brian Chirls

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