Framegen - Frame Interpolation

About

Framegen doubles (or more) the frame rate of any HTML5 video in real time, right in the tab. A small neural network - our own WebGPU runtime, ~3 ms per frame on a mid-range GPU (RTX 4060 Ti) - synthesizes the frames between the real ones, so 24/30 fps footage plays at 60, 120 or up to your display's refresh rate.

Works on any site with a <video> element: YouTube, Twitch, streaming sites, local files opened in the browser.

Features:
- 2x to 6x interpolation, an auto mode that follows your GPU headroom, and a "display Hz" mode that locks output to your monitor's refresh rate
- Compare slider: drag a divider across the video - original on one side, Framegen on the other
- Anime mode: detects animation drawn "on twos" and interpolates the real drawing cadence instead of duplicated frames
- Optional 2x neural upscale (SR) on interpolated frames, trained to repair interpolation artifacts, not just sharpen
- Self-calibrating kernels: the runtime benchmarks itself on your GPU once and picks the fastest shader variants
- HUD with live fps / latency stats

Requirements: a WebGPU-capable browser (Chrome 121+) and a GPU with shader-f16 support. No WebGPU = the extension politely does nothing.

Privacy: everything runs locally on your GPU. Framegen has no servers, makes no network requests beyond loading its own bundled files, and collects nothing. See the privacy policy.

Does not work on DRM-protected sites (Netflix etc.) - the browser hides their video from extensions by design.

Free for personal use. Open source: https://github.com/MONZikWasTaken/Framegen