画面録画テスト
ブラウザが画面、ウィンドウ、またはタブを記録できるかどうかをテストし、ダウンロードする前にローカル プレビューを確認してください。
テストインターフェース
[スタート] を押した後、ブラウザーが許可を求める場合があります。このツールの使用方法
- Click Start recording and choose a screen, window, or tab in the browser picker.
- Wait for the preview to appear and confirm that frames are moving.
- Stop the recording and review the playback and file size.
- Download only if you need to keep the clip.
広告
技術解説
getDisplayMedia() captures a user-selected surface and MediaRecorder encodes it in a browser-supported container. The page never receives a list of your windows or the ability to start capture without the picker.
Recording performance depends on the encoder, resolution, and hardware. A successful recording confirms that the API and codec path work, not that every application will record smoothly.
トラブルシューティング
The picker does not appear
getDisplayMedia requires a secure context, a user gesture, and browser support. Managed devices may disable it.
Recording is empty
Choose a surface that is actively changing. Some protected content cannot be captured.
No video preview
The selected MIME type may not be supported. Try another browser.
Audio is missing
This page records video only. System audio capture support varies by browser and platform.
関連ツール
よくある質問
広告