Speak any topic. Watch an AI build the diagram live — nodes, arrows, code, equations — in sync with your voice. Like 3Blue1Brown, but you drive it.
Works for NB-IoT · OAuth · Database indexes · Transformers · Anything you can explain
We built the tool 3Blue1Brown uses to prep — but live, voice-driven, and interactive.
No typing, no clicking, no slides to build. Speak naturally and the board responds to every word.
Nodes appear, arrows connect, code types itself — all timed to your narration, not dumped at once.
Tap any concept on the board. The AI spotlights it and connects it back to everything already drawn.
NB-IoT, OAuth, sorting algorithms, the French Revolution — the same whiteboard handles anything.
For "watch me build it" moments — code appears line by line, highlighted as the AI explains each part.
LaTeX renders live. Show the softmax formula, the attention mechanism, any maths — beautiful and readable.
If you've ever wished your whiteboard could just keep up with your thoughts, this is for you.
Stop re-drawing the same diagram every semester. Build a lesson once, replay it with voice narration, and let students tap any node to dig deeper on their own pace.
Explain a system design, an API flow, or a network architecture without touching Visio. Talk through it once — the diagram builds itself and can be replayed for your team.
No camera, no recording studio. Your voice plus the live whiteboard is the video. Explain attention mechanisms, sorting algorithms, history — anything — and hit record in present mode.
No account, no setup. Hit the mic button and start talking about anything — a concept, a system, a question you want to unpack.
As you speak, an AI draws the explanation — one concept at a time, connected by arrows, with key points revealed on the side. The board grows with your narration.
Tap any node on the board. The AI spotlights it, explains it further, and shows exactly how it connects back to what's already drawn. Like a progressive trainer.
Every competitor satisfies at most two of the criteria that define a live teaching whiteboard.
| Tool | Voice input | Live diagram sync | Click to explore | Any topic |
|---|---|---|---|---|
| DeBoard.ai | ✓ | ✓ | ✓ | ✓ |
| Napkin AI ($10M funded) | — | ~ | — | ✓ |
| Golpo (YC S25) | — | — | — | ✓ |
| Jeda.ai | — | ~ | — | ✓ |
| Explain Everything | — | — | — | ✓ |
No credit card to try it. Upgrade when it becomes your go-to teaching tool.
Perfect for trying it out
For educators, engineers & creators