Record once,
ship every aspect ratio
Excalicast is a browser-based whiteboard recorder. Draw in Excalidraw, capture voice and actions, then export 16:9 / 9:16 / 1:1 / 4:5 MP4s — ready for YouTube, TikTok, Instagram, and more.
Features
Built on a fixed grid with intentional imperfections — a tactical, editorial feel for daily teaching workflow.
Captures the operation stream rather than screen pixels. Always crisp, never affected by window occlusion or minimization.
Mic audio is tightly aligned with whiteboard actions. Exported MP4 includes a full audio track.
From the same recording, export landscape, portrait, square, and 4:5 versions. No re-recording.
Videos render in the browser via ffmpeg.wasm. Raw recordings never leave your computer.
Toggle the camera on for a draggable circular bubble overlay — great for teaching scenarios.
Recordings live in your browser (IndexedDB). The server only stores payment records and never touches your recordings.
Pricing. Simple.
Recording and watermarked export are free. Pay per recording when you need watermark-free export.
No signup. Just open the app.
- Unlimited recording · no time limit
- Voice + camera bubble (drag / resize)
- Export MP4 (with Excalicast watermark)
- Multi-ratio export (16:9 / 9:16 / 1:1 / 4:5)
- Local web playback. Data stays in your browser, no account.
Permanent unlock for this recording. No account required.
- Everything in Free
- Permanent watermark removal
- Re-export this recording into any ratio, watermark-free, as many times as you want
- Secure Creem checkout (cards)
- Recording data stays in your browser. Server only stores payment status.
For regular creators. Subscribe monthly, cancel anytime.
- Everything in Free
- Watermark-free export on every recording
- Subtitles (auto SRT timeline, zh/en)
- Cloud backup (loss-proof, multi-device access)
- Cross-device cloud template library
- Priority support
Everything in Pro, plus structured handouts and public sharing.
- Everything in Pro
- Structured handout (Markdown outline + transcript, smart figures)
- Multi-format handout export (Markdown / HTML / PDF)
- Public share link (web playback · 30-day TTL)
- Priority support
Accepted payment methods: Visa · Mastercard · American Express
All transactions are processed by Creem. Excalicast never sees your payment details.
How it works
Record
Click "Start recording." Draw, write, and narrate on the whiteboard. Optionally enable the camera bubble.
Preview
When you stop, you jump to the export page. Pick your target ratio (16:9 / 9:16 / 1:1 / 4:5).
Download
Click "Download" for a watermarked MP4. Or pay $4.99 to permanently unlock watermark-free export of this recording.
Refund policy
The one-time watermark-free export is a digital product unlocked instantly on payment, so it is non-refundable. The only exception: if you were charged but the unlock was never delivered, email support@excalicast.cn and we'll verify and refund within 2 business days.
Contact
Questions, feedback, partnership, or refund requests — email us. We reply within 2 business days.