Got an AVI file that's too big or won't play on your phone?
AVI files are bulky, and many phones, tablets and TVs refuse to open them. WinX Free AVI to MP4 Converter from Digiarty Software turns those clips into MP4 on your Windows PC. The MP4 files are smaller and play on far more devices.
Quick facts
- Price: Free. The vendor says there are no trials or restrictions.
- Platform: Windows 10, 8.1 and 7, 32-bit and 64-bit
- Main job: AVI to MP4, with MOV, MPEG, MP3, WMV, H.264 and HEVC also listed as outputs
- Setup: One-click install, with no ads or bundled malware according to the vendor
Key features
Convert large AVI files to smaller MP4s locally
Conversion runs on your own PC. It needs no internet access, and there is no upload or file size cap. The vendor notes that an AVI file tops out at 4GB, and this tool is built to handle files that big.
Hardware acceleration for faster conversions
It uses Intel QSV, Nvidia CUDA/NVENC and multi-core processing. The vendor claims up to 16x faster conversion. Your actual speed depends on your hardware.
Batch conversion with device-ready MP4 profiles
You can convert several AVI clips in one run to standard MP4. You can also pick a mobile-specific profile for phones or console players.
Built-in editor for quick fixes
You can trim, crop, merge and add subtitles before converting. You can also change parameters such as resolution and aspect ratio.
A three-step wizard
Click + Video to import your AVI files. Choose MP4 Video as the output, then press RUN. That is the whole workflow.
Who it's for
It suits you if you have old AVI recordings, camcorder clips or downloads that you want on an iPhone, iPad, Android phone or TV. It also suits you if you want a free converter that skips online upload limits. If you need many formats, heavy editing or 4K enhancement, the vendor points people to its paid Winxvideo AI instead.
Pros and cons
Pros
- Free, with no trial period or restrictions according to the vendor
- Works offline with no file size limit
- GPU acceleration on Intel and Nvidia hardware
- Includes basic editing and device profiles
Cons
- Windows only
- Focused on AVI input. It is not a general converter for every format.
- The vendor's product page was last updated some time ago, and the vendor now promotes Winxvideo AI as its main converter
FAQs
Is it really free?
Yes. The vendor describes it as freeware with no trials or restrictions.
Do I need an internet connection to convert?
No. Conversion happens on your PC, so there is no upload step.
Why convert AVI to MP4?
MP4 files are usually much smaller than an AVI of the same length. They are also accepted by most smart devices, and you can share them on YouTube, Facebook, WhatsApp or by email.
Can it make formats other than MP4?
Yes. The vendor lists MOV, MPEG, MP3, WMV, H.264 and HEVC as outputs.
Does it run on 64-bit Windows?
Yes. The vendor lists both 32-bit and 64-bit support for Windows 10, 8.1 and 7.
System requirements
Windows 10, 8.1 or 7, 32-bit or 64-bit. GPU acceleration uses Intel QSV or Nvidia CUDA/NVENC where your hardware supports it.