Beautiful animated
visual explanations, fast.
openCanviz turns your docs into explainer videos, animated diagrams, infographics, and product mockups, grounded in your facts and editable to the last box.
CH 03 · THE CACHE LAYER
The database never wakes up.
p99 read · 0.4ms
hit ratio · 94%
origin load · −89%
“Ninety-four times out of a hundred, the answer is already in memory.”
▶
the-cache-layer · 3:05 · narrated · made with openCanviz
01 · GROUND
It reads your source like an engineer.
Paste text or a URL. openCanviz extracts a content brief: the one number that drives the story, every stat verbatim, the mechanism step by step, your exact terminology.
YOUR SOURCE · rate-limiter.md
The API serves 50,000 req/s across 2M keys. Cap each key at 100 req/min using a token bucket.
antagonist: 50K req/s
12 numbers
6 mechanisms
02 · DRAFT
It drafts a story, not a slideshow.
A story formula shapes the chapters: the hook, the naive attempt, the wall where it breaks, the fix that earns each component. You review and edit the outline before anything renders.
formula: evolution arc
CH 01
The One Number
CH 02
Where It Breaks
CH 03
The Fix That Earns It
03 · DIRECT
You direct the final cut.
Narration, captions, themes, dramatic effects. Regenerate one chapter, swap a template, nudge one box. That is element-level control no one-shot AI video tool gives you.
SCENE 04 · EDITING
MP4
GIF
PNG
✓ exported
WATCH IT EXPLAIN ITSELF
The product video, made with the product.
coming soon · drafted, animated, and narrated by openCanviz
THE GROUNDING RULE
It never invents your numbers.
Every figure, name, and mechanism in the video must come from your source’s extracted brief. If the source doesn’t state a number, the video doesn’t invent one. A rule the drafting pipeline enforces, not a vibe.
UNDER THE HOOD
Every scene is a real diagram.
Not frames of pixels. Live, editable diagrams in a full editor. Drag a node, recolor a box, rewrite a caption, re-time a beat. When AI gets one scene 90% right, you fix the 10% instead of regenerating the world.
SPEAKS 30+ KINDS OF SCENES
flow
graph
sequence
metrics
code
schema
comparison
UI mockups
browser / phone / tablet
algorithm walkthroughs
hash rings
memes
WHO IT'S FOR
Built for people who explain systems
Educators, DevRel, and engineering teams. Anyone whose docs deserve a better medium than a wall of text.
Teaching System Design
Turn a written lesson into a narrated video: the scale numbers, the naive attempt, the wall, the fix.
Product & API Launches
Ship a launch explainer from your docs: endpoints, request flows, and what changed, on brand, in minutes.
Engineering Onboarding
Give new engineers a watchable tour of the system, generated from the docs you already wrote.
Product Demos & Mockups
Show the product before it exists: animated browser and mobile mockups, walked through screen by screen.
Data Stories & Infographics
Turn a report into a shareable visual: the headline number, the trend, the takeaway. Every figure from your source.
Business Workflows
Turn process docs into videos: onboarding flows, sales pipelines, ops runbooks people actually watch.
Your next explainer video is already written
It's sitting in your docs. Paste it in and get back a narrated, animated video you can edit scene by scene.
Everything you need to know
Frequently asked questions
What is openCanviz?
openCanviz turns your documentation into narrated, animated explainer videos. Paste a lesson, README, or docs page (or a URL). It extracts the facts, drafts a story grounded in them, and renders a video you can edit scene by scene in a full diagram editor.
What does "grounded" mean?
Before drafting, openCanviz extracts a content brief from your source: the key numbers, the mechanism step by step, your exact terminology. Every figure and name in the video must come from that brief. If your source doesn't state a number, the video doesn't invent one.
How editable is the result?
Completely. Every scene is a live diagram, not rendered pixels: drag nodes, recolor boxes, rewrite narration, re-time beats, swap a scene's template, or regenerate a single chapter while keeping the rest. That element-level control is the difference from one-shot AI video tools.
What can I export?
Narrated MP4 video (up to 1440p, with burned-in captions), animated GIF, or PNG stills. Free-plan videos include a small "made with openCanviz" end-card; Pro removes it.
Do I need to sign up? What does it cost?
You can try the editor immediately. Creating videos with AI requires a free account, with 30 AI drafts per month free. Pro ($19/mo) is uncapped and removes the end-card.