Convert supported MOV, MKV, MP4 and WebM videos locally to MP4 or WebM. Set output width, choose compression and preview the result before downloading.
Choose the output format the receiving player supports.
The codec is changed by re-encoding. Additional tracks, subtitles and metadata are not copied.
Inspect the result in the intended player before treating conversion as successful for that destination.
Convert a supported video source to MP4 or WebM using a local browser media engine. A container such as MOV or MKV can hold different codecs, so its extension alone does not establish whether the contained video can be decoded. Unsupported or damaged sources report an error.
MP4 output uses H.264 video with AAC audio, while WebM output uses VP8 video with Vorbis audio. Choose a maximum width to reduce dimensions while keeping the aspect ratio. The output does not upscale a narrower source. Re-encoding can affect detail, color interpretation and file size, so inspect the complete result.
The export includes the first video stream and optionally the first audio stream. Other audio tracks, subtitles, attachments and source metadata are not copied. Files up to two hundred fifty megabytes are accepted. Mobile processing can be slow or memory constrained; shorter clips and smaller output widths are more practical.
Select a supported video file up to 250 MB. The engine inspects its streams before exporting.
Use the format supported by the destination player or upload service.
Choose maximum width and compression. Enable Remove audio only when a silent copy is wanted.
Play the exported result and test it in its intended destination before deleting any source copy.
Identifies the video and audio codecs instead of offering an ambiguous extension change.
Limits output width without intentionally enlarging smaller sources.
Checks the encoded file for a video stream before offering the download.
Export H.264 MP4 for a destination that does not accept the original container.
Produce a WebM copy for an application that explicitly supports it.
Convert the clip while removing its first audio track.
Yes, when the local engine supports the source codecs. Choose MP4 output and convert the file.
Supported sources can be re-encoded to H.264 MP4. A container extension does not guarantee that every codec variant is supported.
No. This workflow re-encodes the video and audio. Inspect detail, motion and sound in the result.
No. Only the first video stream and optional first audio stream are exported.
Subtitle streams and attachments are not copied by this converter. Keep the original when those streams are needed.
No. Compatibility also depends on codecs, profile, resolution and the destination player. Test the downloaded file where you will use it.
Drop files here or click to browse — processing stays on your device
Videos up to 250 MB. Target size is an estimate, not a guaranteed cap. Processing can take several minutes, especially on mobile. Only the first video and optional first audio track are exported; subtitles and metadata are not copied. The media engine downloads when you begin; your file stays on your device.
