Everything you need to get the most out of MediaConvert. Can't find your answer? Reach out and we'll help.
MediaConvert supports 11 image formats for both input and output conversion:
You can convert any supported input format to any supported output format in a single step. For example, convert HEIC photos from your iPhone into JPEG or WebP for sharing on the web.
Audio (10 formats): MP3, AAC, FLAC, WAV, OGG, M4A, WMA, OPUS, AIFF, ALAC
Video (11 formats): MP4, AVI, MOV, MKV, WebM, FLV, WMV, M4V, 3GP, TS, OGV
All conversions are performed locally on your device. Quality settings can be adjusted before starting a conversion.
If MediaConvert fails to launch, try the following steps in order:
If none of these steps help, please report the issue (see the Bug Report section below) and include your Windows version number.
After conversion completes, a "Save As" dialog will appear, allowing you to choose exactly where to save the output file. By default, MediaConvert suggests the same folder as the source file with the new extension applied.
You can also find all past conversions in the History tab within the app, which shows the original input path, output path, and conversion status for each task.
Yes! Batch processing is one of MediaConvert's core features. Simply drag and drop multiple files into the app window — you can mix images, audio files, and videos in a single batch.
Each file is tracked individually with its own progress indicator. Files are processed in parallel where your system resources allow, so large batches complete efficiently.
After dropping a video file into the app, select the operation from the dropdown menu:
Both operations are non-destructive — your original file is never modified.
No. MediaConvert works completely offline. All conversions are performed on your local machine. The app does not make any network requests during normal operation.
An internet connection may be needed only once — to initially download and install the app from the Microsoft Store.
Drop the file into the app, then choose Compress Video, Compress Audio, or Compress Image from the operation dropdown, depending on the file type.
A quality slider lets you balance file size against output quality. Lower quality = smaller file size. The estimated output size is shown before you start the conversion so you can adjust accordingly.
Conversion failures can happen for a few reasons:
.mkv) may contain video streams encoded with obscure codecs that cannot be decoded on all systems.The error message shown in the app will indicate the specific error code, which can help narrow down the cause. If you believe it's a bug, please report it.
Open the History tab in the app. You'll find a "Clear History" button that removes all records from the local database (app.db). This only clears the history log — your converted files on disk are not affected.
To completely remove all app data, uninstall MediaConvert via Settings → Apps. Windows MSIX packages clean up their local data automatically on uninstall.
Found something that isn't working right? We want to know. Choose your preferred way to reach us:
To check your Windows version: Press Win+R, type winver, and press Enter.
MediaConvert currently ships as an x64 binary and has not been tested or packaged for ARM64. Windows on ARM may run the x64 version via emulation, but this is not officially supported and performance may be degraded.
The current version uses CPU-based encoding. GPU-accelerated encoding is not yet enabled. Large video files may take longer to process on slower CPUs.
Conversion does not preserve subtitle tracks, chapter markers, or embedded metadata tags that are present in some MKV, MP4, and MOV containers. Only the primary audio/video streams are transferred.
Converting from HEIC or HEIF format requires the HEVC Video Extensions (available for free from the Microsoft Store) to be installed on your system. Without it, HEIC input files may fail to decode.
You can drag and drop individual files or multi-select files before dragging, but dragging an entire folder is not supported in the current version. Process files one batch at a time by selecting them individually.
CPU-based video transcoding is computationally intensive. A 1-hour 1080p video conversion can take 5–15 minutes depending on your hardware. The progress bar will update in real time throughout the process.