How to record a whiteboard lecture (no screen recording)
To record a whiteboard lecture with Excalicast, you open the browser app, pick an aspect ratio, draw and speak as you teach, then export an MP4 — the tool captures the operation stream and microphone audio instead of screen pixels, so the recording stays clean even if you switch tabs.
Steps
- 1
Open the recorder
Go to excalicast.cc and open the app. No download or sign-up is needed to start recording.
- 2
Pick an aspect ratio
Choose 16:9 for YouTube, 9:16 for Shorts/TikTok, or 1:1 — a crop frame shows exactly what will be in the video. You can still export other ratios later from the same take.
- 3
Teach: draw and narrate
Press record and explain on the whiteboard. Optionally enable the camera bubble for a talking-head overlay. Switching tabs to check notes will not appear in the video.
- 4
Export the MP4
Stop and export. Video renders locally in your browser via ffmpeg.wasm. Watermarked export is free; a one-time unlock removes the watermark.
FAQ
Do I need to install anything to record a lecture?
No. Excalicast runs in the browser (Chrome/Edge). You do not install software or sign up to record and export a watermarked MP4.
Can I get subtitles for the lecture?
Yes, on the Pro plan. Subtitles are generated with Alibaba Qwen ASR (optimized for Chinese and English) and can be downloaded as SRT or burned into the MP4.