title	Clapper
emoji	🎬
sdk	docker
colorFrom	gray
colorTo	gray
pinned	true
app_port	3000
disable_embedding	false
hf_oauth	false
header	mini
short_description	🎬 Clapper

Clapper is in a very early stage. There are no tutorials, some UI features and buttons won't work, some workflows are broken, and there are no tests. Want this to change? Come join our open-source community to help build Clapper!

Funding

Clapper is not funded! (yet?) But you can buy me a coffee 🫶

Introduction

🎬 Clapper is an open-source AI story visualization tool.

Prototyped a year ago, Clapper is not designed to replace traditional video editors or modern AI editors using 3D scenes as input.

Clapper's philosophy is for anyone to create videos using AI through an interactive, iterative and intuitive process, without the need for external tools, filmmaking or AI engineering skills.

In Clapper you don't edit a sequence of video and audio files directly, but iterate (with the help from your AI assistant) over your story using high-level abstractions such as characters, locations, weather, time period, style etc.

To this end I am also working on a Director's Mode, where you can just put the video in fullscreen, sit comfortably in your director's chair (or couch), shouting orders at your AI set assistant to produce your movie.

Public alpha access

A public instance of Clapper is currently hosted on Hugging Face, you can try it at Clapper.app

Open-source philosophy

The whole the project is open-source.

To participate, please join us on Discord.

The roadmap is public, too: Clapper roadmap.

Badges

• Build and tests status:

• Sponsor a feature: (temporary disabled due to an issue with the bounty provider)

Bounty Sponsors

Those generous sponsors are paying for code bounties:

• Moon (github, twitter, website)

Want to contribute?

For users or corporations

Sponsor specific features

!! ATTENTION: there is currently an issue with the platform we initially used for bounties. We are looking for an alternative solution. !!

For developers

Licence

Clapper is under a GPL v3 licence, see the LICENCE file for more information. This is a similar licensing to apps like ComfyUI or Blender.

Installation

Prerequisites

As a prerequisite you need to have git lfs installed (see the .gitattributes file at the root of project):

git lfs install

You will also need to install Bun

Clapper has been tested with Node 20.17.0.

To make sure you use this version, you can use NVM to activate it:

nvm install
nvm use

If you find that Clapper is working with a more recent (stable) version of Node, or have a better version management to suggest, please open a ticket.

Installation

Install the dependencies.

--include=optional is to make sure optional dependencies are installed (pre-build native modules compatible with your system)

bun i

You can run the following command to build the app, making sure all the types are consistent and properly set:

npm run build

Running the web app

Then run the actual app, the first time you go to localhost:3000 after typing this command, the app will compile, which can take a minute (like, literally: Compiled / in 52.6s (6372 modules))

bun run dev

Running the app with Electron

An Electron build is in progress.

There are still some things to debug and figure out, but if you are a developer you can try it out by starting Clapper through Electron like this:

cd packages/app
bun run electron:start

If that doesn't work for you (issue with node-gyp, setuptools, distutils etc) you might have to run:

python3 -m pip install --break-system-packages setuptools

You can also build Clapper for your operating system by typing:

cd packages/app
bun run electron:make

You might see a DeprecationWarning message written in red at the end but that's only a warning, just open ./out/make to check if the build worked.

Code conventions

I have setup Prettier and ESLint, they use some basic rules (you can propose new rules if you want to)

Testing

To run all the tests (unit and e2e) please run:

bun run test

This is not instantaneous: playwright may seems to do nothing for a while at first.

@jbilcke-hf is working to add more tests, and will also act as the "QA engineer".

Unit tests

Note: I've just added Vitest so we only have a few tests for now.

To run the test without watching, type:

cd packages/app
bun run test:unit:ci

To run the tests with watching, type:

cd packages/app
bun run test:unit:watch

End-to-end tests

Note: I've just added Playwright, but we don't really have tests yet.

Please note that due to the app needing to build during 30~60s (depending on the speed of your computer), running those tests may take some time to execute.

bun run test:e2e

More Playwright commands: bunx playwright test Runs the end-to-end tests.

bunx playwright test --ui Starts the interactive UI mode.

bunx playwright test --project=chromium Runs the tests only on Desktop Chrome.

bunx playwright test example Runs the tests in a specific file.

bunx playwright test --debug Runs the tests in debug mode.

bunx playwright codegen Auto generate tests with Codegen.

We suggest that you begin by typing:

`bunx playwright test`

Architecture

For convenience, you can access and inspect any of the services at runtime (in the browser's JS console) by typing useUI.getState(), useIO.getState() etc