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Chalkboard
Turn any prompt into a narrated whiteboard explainer videos!
Chalkboard turns a prompt like “explain how the universe is aging” into a narrated, hand-drawn explainer video with diagrams, real AI imagery, subtitles, and music, exported as an MP4. Bring any provider, or run it fully local with Ollama + Piper for $0 per video. MIT-licensed.
Hey Product Hunt 👋
I built Chalkboard because making a decent explainer video is slow and expensive, and every “AI video” tool is a closed SaaS with per-video pricing.
Chalkboard is the opposite: open source, MIT-licensed, and it can run entirely on your own machine for $0 per video using Ollama for the script and Piper for the voice.
You give it a prompt, and it writes a SceneScript, draws hand-sketched diagrams with RoughJS + Graphviz auto-layout, generates real imagery where it helps, narrates per scene, burns in subtitles, adds mood-matched music, and muxes everything into an MP4. Although I recommend using open ai's apis because they are really good.
There’s also a vision “self-correct” pass that screenshots each scene and fixes overflow or contrast issues before the final render.
Three formats work out of the box: 16:9 explainer, vertical reels, and a research-backed cinematic documentary mode, plus multilingual dubbing where you build once and render one MP4 per language.
It’s still an early v0.1, so I’d genuinely love feedback. What would you point it at first?
Happy to answer anything about the pipeline. 🙏
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About Chalkboard on Product Hunt
“Turn any prompt into a narrated whiteboard explainer videos!”
Chalkboard was submitted on Product Hunt and earned 4 upvotes and 1 comments, placing #140 on the daily leaderboard. Chalkboard turns a prompt like “explain how the universe is aging” into a narrated, hand-drawn explainer video with diagrams, real AI imagery, subtitles, and music, exported as an MP4. Bring any provider, or run it fully local with Ollama + Piper for $0 per video. MIT-licensed.
Chalkboard was featured in Open Source (68.5k followers), Artificial Intelligence (471k followers), GitHub (41.3k followers) and Video (1.9k followers) on Product Hunt. Together, these topics include over 139.8k products, making this a competitive space to launch in.
Who hunted Chalkboard?
Chalkboard was hunted by Atharva Kanherkar. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Atharva Kanherkar