Convert HEIF to MP4 Online & Free

Quickly convert HEIF to MP4 with our fast, secure, and free HEIF to MP4 converter, designed for smooth playback on any device; upload your HEIF files, get high-quality MP4s in seconds, with no software required and unlimited conversions for effortless sharing and editing.

More HEIF conversion tools

Looking for more ways to work with HEIF files? Explore our easy tools to convert images and videos in seconds—perfect alongside our HEIF to MP4 converter for fast, high-quality results.

FAQ about converting HEIF to MP4

Find quick answers to common questions about converting HEIF to MP4. Below, we cover how it works, file size, quality, speed, privacy, and supported devices so you can convert your images to video smoothly and safely.

What’s the difference between HEIF and MP4

HEIF is an image container format designed for still photos and photo sequences, offering high compression efficiency with excellent image quality. It commonly stores images encoded with HEVC (H.265), supports features like transparency, depth, Live Photos, and multiple images per file, and is ideal for photo storage and sharing.

MP4 is a multimedia container format primarily for video (plus audio, subtitles, and metadata). It often uses video codecs like H.264 or H.265, is optimized for playback and streaming, and is the standard for movies, clips, and online video. In short: HEIF = images; MP4 = video.

Will converting HEIF to MP4 reduce image/video quality

Converting HEIF (a still-image format) to MP4 (a video container) generally involves turning one or more images into a video stream, which introduces re-encoding and can reduce perceived quality due to lossy compression and lower bitrates; if your goal is to keep a single photo’s quality, convert HEIF to another image format like PNG (lossless) or JPEG (lossy), and if you must use MP4 (e.g., for compatibility), choose a high bitrate, a modern codec like H.265/HEVC, and avoid unnecessary resizing or color space changes to minimize quality loss.

Are there file size limits for HEIF to MP4 conversion

Yes, most HEIF-to-MP4 tools have file size limits, which depend on the platform and method you use. Online converters typically cap uploads to ensure quick processing and server stability—common limits range from 50 MB to 1 GB. Larger files may require compression, splitting, or a desktop workflow to avoid timeouts and failures.

If you need to convert very large files, use a desktop application or command-line tools (e.g., ffmpeg) to bypass web upload limits. Also check browser restrictions, available storage/memory, and ensure enough disk space for temporary files during conversion.

Which devices and browsers can play MP4 after conversion

After conversion to MP4 (H.264/AAC), playback works on most modern devices and browsers: Windows (Movies & TV, VLC, Edge, Chrome, Firefox), macOS (QuickTime, Safari, Chrome, Firefox), iPhone/iPad (iOS 11+ via Photos, Files, Safari), Android (Gallery/Photos, Chrome, Firefox), smart TVs and media players (many support MP4/H.264), and game consoles (PlayStation, Xbox). For the web, MP4 is natively supported by Chrome, Edge, Safari, Firefox, and Opera. If you encounter issues, try updating the app/browser, use a reliable player like VLC, or ensure the MP4 uses the common H.264 video + AAC audio codecs.

Can I convert multiple HEIF files to one MP4 or batch-convert

Yes. You can combine multiple HEIF/HEIC images into a single MP4 by creating a slideshow: upload/select the images in order, set frame duration or transition, optionally add audio, then export to MP4. Note that still photos don’t become true “video” unless you define timing; if your HEIFs include Live Photos or bursts, choose a tool that preserves motion when exporting.

For batch conversion, use a converter that supports bulk upload and select an output like JPG, PNG, WEBP, or MP4. Enable options such as keep metadata, resize, or quality as needed, then process all files at once and download the results in a single archive.

Does the conversion keep metadata like date and location

In most cases, the conversion preserves common metadata such as date/time and geolocation (GPS), provided the original file contains it and the selected output format supports it (e.g., JPEG, TIFF). We do not modify metadata fields unless necessary for compatibility.

However, some formats or settings may not retain all EXIF/XMP details (like camera model, orientation, or edit history). If full metadata retention is critical, choose a format that supports it and avoid options that strip data.

You can verify results by checking the converted file’s properties or using an EXIF viewer. If specific tags are missing, try a different output format or let us know which fields you need preserved.

Is my data secure and are files deleted after conversion

Yes—your data is secure. We use encrypted HTTPS during upload and download, process files on secure servers, and automatically delete files shortly after conversion completion. We never sell or share your content, and access is restricted to the conversion process only. For added control, you can remove files manually at any time; otherwise, they are permanently deleted on our cleanup schedule.

Why is my MP4 output large and how can I reduce the file size

Your MP4 might be large due to a high bitrate, large resolution (e.g., 4K), high frame rate (60fps+), inefficient codec (H.264 vs. H.265/AV1), variable bitrate set too high, or long duration. Embedded audio settings (lossless or high kbps), multiple audio/subtitle tracks, and low compression settings also increase size.

To reduce size, re-encode with a lower bitrate or use CRF (e.g., 22–28), switch to H.265/HEVC or AV1, scale down resolution (e.g., 1080p→720p), lower frame rate to 24–30fps, and compress or convert audio (AAC/Opus at 96–160 kbps). Remove unused tracks, enable 2-pass encoding for efficiency, and trim/cut unneeded segments.