Stop reading explanations.
Watch them.

Rekka turns any topic into a narrated, hand-drawn video. Onboarding, training, product explainers, or anything worth explaining.

rekka

See it in motion

How the immune system responds to a rhinovirus infection
Long-form
11:07of drawn animation

8 chapters from a single prompt, rendered in one continuous run.

How the immune system responds to a rhinovirus infection

Shorter cuts

How photosynthesis works
Biology
How photosynthesis works
Introduction to Astrophysics
Astronomy
Introduction to Astrophysics
Who was Napoleon Bonaparte?
History
Who was Napoleon Bonaparte?

Four styles

Same topic engine, pick the look when you generate.

Whiteboard style sample
Whiteboard

Black ink on white. The default.

Chalkboard style sample
Chalkboard

White chalk on slate.

Crayon style sample
Crayon

Coloured pencil, storybook warmth.

Retro reel style sample
New
Retro reel

Retro storybook illustration, cut to the beat of the narration. One shot a line, captions burned in, built for a feed rather than a lesson.

  • Always 9:16
  • One shot per line
  • Captions on the frame

How it works

Website
no setup
API
POST /v1/videos
MCP
for your agents
Topic
Style
Crayon
Format
Landscape
1

Use the website, API, or MCP

Whichever fits your flow: the web app, a REST call, or rekka as an MCP tool in your agent.

2

Give a topic & choose settings

A single line or a detailed explanation, plus your video settings like style and format.

3

Get your video

A narrated, hand-drawn explainer, ready to watch and share.

Some ideas that you can try

How does our deploy pipeline work?
Onboarding

“How does our deploy pipeline work?”

Turn tribal knowledge into a two-minute walkthrough every new hire actually watches.

What counts as insider trading?
Compliance

“What counts as insider trading?”

Annual training as a drawn story instead of a 40-slide deck nobody reads.

How does a phishing attack work?
Security training

“How does a phishing attack work?”

The anatomy of a scam email, sketched hook by hook for the whole company.

What does our API actually do?
Product

“What does our API actually do?”

A hand-drawn explainer for your docs, landing page, and sales calls.

How do expense reports get approved?
Internal process

“How do expense reports get approved?”

Any internal process as a clear, narrated flowchart, made in minutes instead of meetings.

Why did Rome fall?
Education

“Why did Rome fall?”

And every classroom topic too, from world history to Bayes' theorem.

Questions

Frequently asked questions

What is Rekka?

Rekka turns a topic into a narrated, hand-drawn explainer video. You type a line like "how does rain form", pick a style and a format, and get a finished video with voiceover and drawn-on visuals. There is no timeline to edit, no stock asset library to search, and nothing to record yourself.

How much does Rekka cost?

Plans start at $5 a month for 26 credits, and one credit makes one video. Annual plans bill once and bring every credit down to about $0.14, saving up to 33 percent. You can also buy credits as a one off top up at $0.18 each.

How long does it take to make a video?

Around 5 to 10 minutes for a video, no matter how long it is. Rendering runs server side, so you can close the tab and the finished video will be waiting in your library.

Can Rekka explain my own documents?

Yes. Attach images or a PDF and Rekka reads them as source material, so the video explains your document rather than a generic version of the topic. You can also talk through the attached pages in chat first, then generate once the plan looks right.

What do I actually get at the end?

An mp4 with narration, hand-drawn visuals, and the audio synced to what is being drawn on screen. You can watch it in the app, download the file, or switch on a public share link so someone can watch it without an account.

Can an AI agent use Rekka as a tool?

Yes. Rekka runs a streamable HTTP MCP server, so agents like Claude can call it as a tool and produce a video mid conversation. It authenticates with the same API key and spends from the same credit balance as everything else.

Why a narrated, drawn video instead of text?

According to research by Richard Mayer, people learn more from words paired with pictures than from words alone, a finding he calls the multimedia principle. Allan Paivio's dual coding theory offers one explanation: the mind stores verbal and visual information separately, so a concept learned both ways has two routes back into memory. A 2003 study by Mayer and Moreno also found that learners follow an animation better with spoken narration than with on-screen text. Rekka pairs narration with drawings that appear as they are mentioned.

Sources: Mayer and Moreno (2003), Nine Ways to Reduce Cognitive Load in Multimedia Learning, Multimedia learning, Dual coding theory

More answers on the FAQ page, or see what it costs.

Ready? Type a topic.

From one line to a narrated, hand-drawn explainer.