Free online HEIF to WEBM converter

Convert HEIF photos into a WEBM video or slideshow with a chosen display duration.

Convert HEIF to WEBM online - free

.heif .webm

Drop up to 3 .HEIF files here or click to browse

Max 10 MB per file · No registration required · max 30 MB total

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Your file is processed instantly and deleted as soon as you download it.

How it works

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Upload your .heif file

Click to browse to select your file you want to convert or simply drag & drop your file into selected area.
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Perform .heif to .webm conversion

After successful file upload, click to convert when you are ready.
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Download converted .webm file

Conversion result is ready to download.

How to convert heif to webm file

November 15, 2026
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Some video services and editing workflows accept WEBM but not HEIF photos. Converting creates a video from the still image; with several photos, the result can be a slideshow.

What the HEIF format is

HEIF (High Efficiency Image File Format) stores images, commonly using HEVC compression. Files from Apple devices often use the .heic extension; iPhones and iPads commonly save photos this way, and HEIF files can also come from cameras and image software.

What the WEBM format is

WEBM is a video container used for web playback. It commonly carries VP8 or VP9 video, and can also contain AV1 video and Vorbis or Opus audio. It is useful when a website, browser-based workflow, or video editor requires a web-oriented video file.

How to convert HEIF to WEBM

Online on 101convert.com

Upload one or more HEIF pictures to the converter on this page. Batch conversion is supported; observe the per-file size limit shown on the page.
Before converting, set show each picture for to choose how long each image appears in the video.
Convert the files and download the WEBM result.

Offline with desktop software

FFmpeg is free and runs on Windows, macOS, and Linux. Use a build that can decode HEIF/HEIC; support depends on how FFmpeg was compiled. This command makes a five-second WEBM from one picture at 30 frames per second:

ffmpeg -loop 1 -framerate 30 -i photo.heic -t 5 -vf scale=trunc(iw/2)*2:trunc(ih/2)*2 -c:v libvpx-vp9 -crf 30 -b:v 0 -pix_fmt yuv420p -an output.webm

Replace photo.heic with the input filename and adjust -t 5 for the clip duration. The scale filter makes dimensions even for the selected pixel format; -an leaves out audio.

Quality and limitations

A single HEIF photo becomes a static video, not moving footage; multiple photos become a slideshow. The source image contains no audio, so this conversion does not create a soundtrack. VP9 encoding and the yuv420p pixel format may change image detail or color, and playback support depends on the device or application.

Note: This heif to webm conversion record is incomplete, must be verified, and may contain inaccuracies. Please vote below whether you found this information helpful or not.

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HEIF vs WEBM: format comparison

How the HEIF and WEBM formats compare on the properties that matter most for this conversion.

Comparison of the HEIF and WEBM file formats
Property	.HEIF High Efficiency Image File Format	.WEBM WebM
Open standard	Yes	Yes
Compression	Both	Both
Typical file size	Small	Small
Opens in a web browser	Partial	Yes, natively
Further editing	Limited	Limited
Metadata support	Extensive	Basic
Plain-text readable	No	No
Best used for	Photographs	Streaming
Introduced	2015	2010
Developer	Moving Picture Experts Group (MPEG)	Google
MIME type	image/heif	video/webm

Open HEIF file Open WEBM file

Information about file extensions and file types is provided by File-Extensions.org

Frequently asked questions

Is the HEIF to WEBM converter free?

Yes, converting HEIF to WEBM on 101convert.com is completely free. No registration, email address or installation is required. If you need a higher file size limit or want to convert more files at once, see our plans.

How large can my HEIF file be?

You can upload HEIF files up to 10 MB and convert up to 3 files at once in a single batch. With a paid plan the limit is up to 2000 MB per file and 20 files at once, see our plans.

What happens to my uploaded files?

Files are processed automatically and deleted from our servers within a few minutes after conversion. We never view or share your files.

Do I need to install any software to convert HEIF to WEBM?

No. The HEIF to WEBM conversion runs entirely online in your browser and works on Windows, Mac, Linux, Android and iPhone.

Did the conversion fail?

In most cases, the cause is an incorrect file format. Please upload a valid HEIF file for this HEIF to WEBM conversion. Occasionally, the issue may be on our side. We analyze recurring conversion failures and disable or fix the converter if we detect a defect.

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Additional formats for
heif file conversion

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