OpenFilm

Overview

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OpenFilm is an open-source AI video agent tool designed to turn any coding agent (such as Codex or Claude Code) into a video production agent. It defines video content using Web technologies and provides a local editor called Studio for viewing and modifying the generated films. ### Core Concepts - **One HTML file**: A film is represented as `film.html`, combining animated web pages, footage, images, and sound on tracks, styled with CSS. Coding agents don't need to learn a new framework—they simply use their existing Web knowledge to generate videos. - **One function**: Each shot is a web page that draws any moment in time via a `frame(t)` function. You can use any browser-supported technology such as three.js, WebGL, canvas, SVG, CSS, or GSAP, without relying on external frameworks like Remotion. - **One editor**: Studio lets you move, scale, and rotate elements on the page, modify text, colors, and styles, and place, crop, restyle, trim, and cut clips on the timeline. ### Desktop App OpenFilm offers desktop apps for macOS and Windows. The app combines Studio with a chat interface, supporting interaction with agents like Claude Code and Codex, or using its built-in agent. The desktop version bundles ffmpeg and a headless browser, so no extra dependencies are required. ### Workflow A film is essentially a folder containing `film.html`. Each `<section>` represents a track, and clips can be web pages, videos, images, or audio. Studio runs in your local browser, and your edits are saved directly into the film file, which agents can read while preserving those changes. Export to MP4, GIF, audio, subtitles, transparent video, and timelines for Premiere Pro and DaVinci Resolve is supported. ### Who It's For Ideal for developers or creators who want to rapidly prototype videos using AI coding agents while retaining the ability to fine-tune manually. No account registration is needed to produce, edit, or render films. To generate speech, music, images, or video, configure API Keys for services like ElevenLabs or OpenAI in Studio settings.

Q&A

What does the OpenFilm desktop app include?AI-generated

The desktop app combines Studio with a chat interface, supporting connections to agents like Claude Code and Codex, or using its built-in agent. It bundles ffmpeg and a headless browser, so no additional dependencies are required.

Do I need to register an account to use OpenFilm?AI-generated

No account is needed to produce, edit, or render films. However, if you want to generate speech, music, images, or video using services like ElevenLabs, OpenAI, Google, or fal, you'll need to enter your own API Key in Studio settings.

How is a film defined?AI-generated

A film is a folder containing a film.html file. Each section in the HTML represents a track, and clips can be web pages, videos, images, or audio. Playback ranges, positions, and styles are controlled via media fragments, CSS, and custom properties.

What environment is required to run OpenFilm?AI-generated

The CLI approach requires Node 22.2+ and ffmpeg, and downloads about 100 MB of headless Chromium on first run. The desktop app bundles these dependencies and supports macOS and Windows.