Point at the frame.
Say it in one line.
A review tool for people who make videos with AI. Your note and the exact frame go straight back to the Claude Code or Codex conversation that made the video. The fixed version comes back to the same link.
Open source (MIT) / Free / Runs on your own machine
How it works
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Pause
Stop the video where something is off.
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Point and write
Tap the frame and write one line. "Make the face a little bigger" is enough.
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Get it back
The request goes to the conversation of the AI that made the video. Fixed versions stack up on the same link, so you can compare before and after, then approve.
Reviewers don't need to be engineers
Open the share link on a phone. Nobody has to explain where in words: the frame and the spot you pointed at go straight to the AI.
Visual style examples, so nobody needs editing terms / Timestamps / time ranges / a pin on the paused frame / Before-and-after comparison / Japanese and English interface / Notifications for Claude Code and Codex
Three lines with Docker
All you need is Docker.
git clone https://github.com/becky-exists/kokocheck.git
cd kokocheck
docker compose up --build -dOpen http://localhost:4391 and add an MP4. To connect Claude Code or Codex, see the README on GitHub.
Good to know first
KokoCheck doesn't edit video. It delivers the request; how well it gets fixed depends on your AI.
It runs on your own machine or server. It's not a hosted service.
Anyone with the share link can comment on that video. Choose who you share it with.