Free tools for video creators
Video generators, calculators, and references — no account required. We'll keep adding to these.
GitHub Star Count Video Generator
Turn any public repository's star count into a shareable animated video.
GitHub Star History Video Generator
Animate a repository's growth over time as a star history chart video.
NPM Downloads Video Generator
Turn a package's weekly npm download count into an animated video.
YouTube Subscriber Count Video Generator
Turn a channel's subscriber count into a shareable animated video.
Aspect Ratio Calculator
Lock an aspect ratio and solve for the missing width or height in pixels.
Timecode ↔ Frames Converter
Convert between HH:MM:SS:FF timecode and a raw frame count at any frame rate.
Video File Size Estimator
Estimate an export's file size from its bitrate and duration — and vice versa.
Social Video Size Guide
A cheat sheet of recommended video dimensions and ratios for every major platform.
Frequently asked questions
Yes — every tool here is completely free, runs in your browser, and requires no sign-up.
No account is needed. The tools are standalone utilities; GenMotion itself is the AI studio you can try separately when you're ready to make a video.
You enter a repository, package, or channel, we fetch the live numbers, and the video is rendered and encoded entirely in your browser — nothing is uploaded and there's no queue to wait in. Downloads are MP4 and carry a small GenMotion badge.
Yes. We'll keep adding generators, calculators, and references that help video creators — check back, or start with the ones here.