FFmpegFreeUI

FFmpegFreeUI, also called 3FUI, is a Windows desktop application that gives a graphical interface to FFmpeg, the widely used command-line tool for converting and compressing video, audio, and image files. The project was built for people who want professional-grade control over video encoding without typing commands, and it targets users on Windows who compress or transcode media regularly, such as video editors, subtitle burners, and batch-processing enthusiasts.

The software does not bundle its own encoders. Instead, it passes parameters to whichever version of FFmpeg you place alongside it or add to your system PATH. This design means 3FUI stays current automatically: when FFmpeg releases an update, you swap the files and the interface works without waiting for a software patch. The application supports over 40 video codecs (including hardware acceleration from major graphics card makers), more than 20 audio codecs, and over 10 image codecs, and it also allows fully custom parameters when none of the presets fit.

The interface is built around a task queue. You drag files onto the queue, configure the settings panel beforehand, and the software generates the FFmpeg command when processing begins. Each task stores its own snapshot of settings, so different files in the same queue can use different options. The software shows estimated remaining time, predicted output file size, and lets you pause tasks. Batch processing has no limit on the number of queued files.

All encoding and production features are free with no advertisements. A one-time Supporter Pack purchase is available for users who want to fund continued development and get minor cosmetic options in return. The project is MIT licensed and source code is only published on GitHub. The interface is primarily in Chinese, with English localization partially underway.