DemoForge / StudioGitHub · source & CLI ↗

Explain your demo.
Keep your video local.

Bring a screen recording, write a few explanations, then save a video or a README-ready GIF. Try the included sample first. No signup, API key, or video upload.

1. Choose a recording

A real Cutroom workflow using synthetic data.

2. Explain what matters

First explanation starts at 0. Times round to 25 fps. Write up to 8 explanations, 90 characters each.

Reuse a Demo Forge story JSON
Edit explanations ↑

Choose the sample or a local recording to begin.

0.00 / 0.00s

3. Take it with you

Unchecked exports a silent video. Only audio already in your file is used; files without audio remain silent.

Checking browser export support…

Export a GIF for your README

Silent, 640×360, 10 fps. Select 0.1–15 seconds (up to 15 MB). GIF uses fewer colors than video; review small text before sharing.

Choose a recording first.

Ready for a recording.

The editing preview is silent. Play the encoded result to review audio after export. Video export runs at playback speed; keep this tab open until it finishes. Video output is 1280×720. GIF timing rounds up to the next 0.1 second and never includes audio. Original audio is re-encoded only when selected; the source file is unchanged. Review the saved video before sharing.

Your own video stays in this browser. No data is sent to a video-processing server. To record and verify app actions automatically, use the Demo Forge CLI.

動画はブラウザ内で処理します。説明の秒数は手動調整です。元の音声を残す場合はチェックしてください。アプリの動作確認や自動文字起こしは行いません。