Free online HEIF to MP4 converter

Photo viewers and editing workflows may accept HEIF images but require an MP4 clip for playback or timeline import. Converting one image produces a static video; converting several can produce a slideshow.

What the HEIF format is

HEIF (High Efficiency Image File Format) stores still images and image sequences, commonly using HEVC compression; files often use the .heic extension. Apple devices commonly create HEIF photos, and some Android phones and image-editing apps do as well. You may encounter the format when transferring phone photos to software that does not support HEIF.

What the MP4 format is

MP4 is a video container, commonly holding H.264 video and optionally audio. Its broad support makes it suitable for playback on phones, computers, TVs, and video-editing timelines. Unlike a still-image file, an MP4 has a duration and frame rate; a single-photo conversion repeats the same image across video frames.

How to convert HEIF to MP4

Online on 101convert.com

1. Upload one or more HEIF files to the converter on this page. The page shows the per-file size limit.
2. Set Show each picture for to the duration you want each image displayed.
3. Convert the files, then download the MP4 output.

Offline with desktop software

For a local conversion, use ImageMagick and FFmpeg on Windows, macOS, or Linux. ImageMagick must be built with HEIF/libheif support, and FFmpeg must include the H.264 encoder libx264.

1. Convert the HEIF image to PNG: magick input.heif frame.png.
2. Create a five-second MP4 from the still image: ffmpeg -loop 1 -framerate 30 -i frame.png -t 5 -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -c:v libx264 -pix_fmt yuv420p output.mp4. Change -t 5 to set the duration in seconds.

The resulting clip has no audio. For several images, convert each to PNG and assemble them as separate clips in a video editor, setting each still’s duration before exporting as H.264 MP4.

Quality and limitations

Converting a still image cannot create motion that was not present in the source. A HEIF image sequence may contain multiple images, but conversion behavior depends on whether the tool reads the sequence or only its primary image. MP4 encoding can also discard HEIF-specific metadata, transparency, depth information, or HDR characteristics; H.264 output is typically an SDR video.