When was your AVI made? That decides what's inside.
AVI is a 1992 Windows container that held whatever codec was popular at the time. A 2003 movie rip, a 2006 camcorder tape and a 2010 game capture are completely different files. Slide to roughly when yours was made.
Open MP4, MKV, MOV, AVI, WMV, FLV, RealMedia, DVD VOB, camcorder MTS or almost anything else, and save it as any of 32 formats. The converting happens in this tab. Your video is never uploaded.
Each file is identified from its first bytes as soon as you add it. Once the engine is loaded it is read in full, so you see the real codecs, size and length before you convert.
MPEG-4 Part 14 on the ISO base media format. The safest choice when a file has to play anywhere.
ffmpeg -i input.mp4 -map 0:v:0 -map 0:a:0? -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" -c:v libx264 -preset veryfast -crf 23 -pix_fmt yuv420p -c:a aac -b:a 128k -ac 2 -f mp4 -movflags +faststart video.mp4TV-era cameras recorded odd lines, then even lines a fiftieth of a second later. Old TVs blended them; computer screens show both at once, so anything moving gets jagged teeth. We rebuild whole frames before encoding the MP4.
DV and DVD video used non-square pixels. The same 720 × 576 frame was meant to be stretched to 4:3 or 16:9, and AVI often forgot to say which. Played as-is, people look thin or wide. We read the flag, or you tell us.
If the AVI already contains codecs MP4 devices understand, we just move them into the new box. Anything older has to be re-encoded, which is slower and changes the pixels slightly.
What people commonly do next with digitised footage.
Yes, AVI to MP4 conversion is completely free with no signup, no watermark, and no usage limit. Convert as many files as you need.
No. The AVI to MP4 converter runs in your browser when your file is supported there, so the file stays on your device for that workflow, reducing server exposure for that workflow. If the file is sensitive, check the processing mode first.
Most AVI to MP4 conversions finish in under a minute. Bigger files take longer, in proportion to their size. There is no queue to join and no account to make first.
Depends on what you are converting between. Go lossless to lossless and the picture or the audio comes out untouched. Go to a lossy format and you give up a little to get a smaller file.
Yes. The AVI to MP4 converter works on phones, tablets, and desktops in any modern browser including Chrome, Safari, Firefox, and Edge.