User level: Level 1 (4 points)How to convert WebM files to MP4 I recorded it at WebM on my PS5 and it won’t go into my Iphone photos app because of that but I have it at my Iphone files app
Posted on Oct 29, 2026 8:33 PM
User level: Level 7 (22,314 points)Oct 30, 2026 12:47 AM in response to DaysJ
The easiest way is to convert that VP8/VP9 video & OPUS audio .webm to H.264/H.265 & AAC .mp4 with Handbrake. Its default preset is quite good.
Or, use ffmpeg to encode H.265 & AAC .mp4 via the Terminal with something like:
ffmpeg -i input.webm -c:v libx265 -crf 28 -preset medium -color_range limited -pix_fmt yuv420p10le -profile:v main10 -x265-params colorprim=1:transfer=1:colormatrix=1:range=limited -timecode 00:00:00:00 -tag:v hvc1 -c:a aac_at -b:a 128k output.mp4
The libx265 encode above uses CPU. If you want much faster encode with slightly lower quality output with he same file size, use Apple's VideoToolbox hardware-accelerated encode (tweak "-b:v 1000K" to set the desired output size):
ffmpeg -i input.webm -vf setsar=sar=1/1,setparams=range=limited:color_primaries=1:color_trc=1:colorspace=1 -c:v hevc_videotoolbox -b:v 1000K -color_range limited -pix_fmt p010le -profile:v main10 -timecode 00:00:00:00 -tag:v hvc1 -c:a aac_at -b:a 128k output.mp4
User level: Level 7 (22,314 points)Oct 30, 2026 8:38 AM in response to DaysJ
Oh, if you want to play .webm on an iPhone, download VLC. It can play .webm from Files.app folders.
User level: Level 7 (25,466 points)Oct 30, 2026 7:58 AM in response to DaysJ
HandBrake is a great app, and Matti Haveri's suggestion is right on, but it's not an iPhone app. I think that you really need a computer to do the conversions.
Do your WebM files play in the Files app?
User level: Level 7 (25,466 points)Oct 30, 2026 9:01 AM in response to Matti Haveri
Matti Haveri wrote: Oh, if you want to play .webm on an iPhone, download VLC. It can play .webm from Files.app folders.
Right! VLC is so versatile. And there's nothing wrong with keeping some videos in Files rather than putting them in Photos.
Originally posted at discussions.apple.com/thread/256385659