MeGUI

What MeGUI is

MeGUI is a free Windows desktop tool that describes itself as a GUI-based MPEG-4 solution. It supports batch conversion, hardware acceleration, and audio extraction, with output choices including MKV, MP4, AVI, M2TS, H.264, H.265/HEVC, Xvid, FFV1, and AV1. The project lists MPEG-4 ASP through Xvid and MPEG-4 AVC through x264, as well as audio formats such as AAC, MP2, MP3, FLAC, Vorbis, and AC3. Its demuxers cover formats including MKV, WebM, MP4, MOV, TS, and M2TS. Listed encoder additions include Exhale, FFmpeg DCA/EAC3/THD, FFV1, and SVT-AV1-Essential. Avisynth+ support is documented; audio transcoding with channel-mask values requires Avisynth+ 3.7.3 or higher. The repository identifies the license as GPL-3.0 and provides an Issues section for reporting project issues. Its maker says release packages are uploaded to GitHub from time to time and advises users to use them at their own risk. A release note says the 2025-02-10 release may need the .NET Framework 4.8.1 runtime to work correctly.

Who it suits

MeGUI may suit Windows desktop users looking for MPEG-4 conversion and encoding tools, including batch processing and audio extraction. Its format and Avisynth support may be relevant to users whose workflows use those listed formats and tools.

Limits

MeGUI has a free plan for Windows desktop use. Channel-mask audio transcoding requires Avisynth+ 3.7.3 or newer, and a release note says the 2025-02-10 package may require .NET Framework 4.8.1.

Getting started

1. Open the MeGUI GitHub project page
2. Choose a package from GitHub Releases when one is available
3. Use a Windows computer
4. Install .NET Framework 4.8.1 if required by the release
5. Add Avisynth+ 3.7.3 or newer for channel-mask audio transcoding

Verdict

MeGUI offers a free Windows toolset for video conversion and encoding, with batch processing and a broad list of supported formats. Check the release and runtime notes before relying on a particular package.