website | demo | nightly builds | wiki

Ruffle is an Adobe Flash Player emulator written in the Rust programming language. Ruffle targets both the desktop and the web using WebAssembly.

Ruffle is in the proof-of-concept stage and can currently run early Flash animations and games. Basic ActionScript 1.0/2.0 support is in place and improving; ActionScript 3.0 support is forthcoming. For more info, read the project roadmap.

Nightly builds of Ruffle are available for desktop and web platforms including the browser extension.

Windows desktop builds require the x64 2015-2019 Visual C++ Redistributable.

Follow the official guide to install Rust for your platform.

• cargo run --package=ruffle_desktop -- test.swf

Follow the instructions in the web directory for building either the web or browser extension version of Ruffle.

If you have a collection of "real world" SWFs to test against, the scanner may be used to benchmark ruffle's parsing capabilities. Provided with a folder and an output filename, it will attempt to read all of the flash files and report on the success of such a task.

• cargo run --package=ruffle_scanner -- folder/with/swfs/ results.csv

If you have a swf and would like to capture an image of it, you may use the exporter tool. This currently requires hardware acceleration, but can be run headless (with no window).

• cargo run --package=exporter -- path/to/file.swf
• cargo run --package=exporter -- path/to/file.swf path/to/screenshots --frames 5

• core contains the core emulator and common code
• desktop contains the desktop client (uses wgpu-rs)
• web contains the web client and browser extension (uses wasm-bindgen)
• scanner contains a utility to bulk parse swf files
• exporter contains a utility to generate PNG screenshots of a swf file

You can support the development of Ruffle via GitHub Sponsors. Your sponsorship will help to ensure the accessibility of Flash content for the future. Thank you!

Sincere thanks to the diamond level sponsors of Ruffle:

Licensed under either of

• Apache License, Version 2.0 (LICENSE_APACHE or https://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE_MIT or https://opensource.org/licenses/MIT) at your option.

Ruffle welcomes contribution from everyone. See CONTRIBUTING.md for help getting started.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you shall be dual licensed as above, without any additional terms or conditions.

The entire Ruffle community, including the chat room and GitHub project, is expected to abide by the Code of Conduct that the Rust project itself follows.