Video Converter: MP4, MOV, MKV

Convert video between any format, compress large files, trim clips, merge videos, resize to any resolution, create GIFs, and extract audio. Everything runs on your device. No uploads, no account, no internet needed. CONVERT VIDEO Convert between MP4, MOV, M4V, MKV, and WEBM. Pick a quality preset (High Quality, Balanced, Small File) for the output. Convert multiple videos at once. COMPRESS VIDEO Shrink large videos using compression levels tuned for size or quality. See exactly how much smaller the result came out when it finishes. Works on batches. TRIM VIDEO Cut a video down to exactly the section you want. A frame accurate filmstrip and preview playback let you set the start and end points precisely. MERGE CLIPS Combine multiple videos into a single file. Reorder the clips before merging. Works across different input formats and resolutions. RESIZE VIDEO Set any resolution from 4K down to 480p, or type an exact size. Choose a 16:9, 1:1, or 4:3 aspect ratio, then fit, fill, or stretch the frame. Resize multiple videos at once. VIDEO TO GIF Turn any clip into an animated GIF. Set the section, frame rate, and size before exporting. EXTRACT AUDIO Pull the audio track out of any video and save it as MP3, M4A, WAV, and more. Batch extract from multiple videos in one go. AUDIO TO VIDEO Turn an MP3 or M4A file into an MP4 video. Process multiple files at once. PRIVATE BY DESIGN All processing happens on-device. No account required. No files are uploaded anywhere. Works without an internet connection. Supported formats: MP4, MOV, M4V, MKV, WEBM, GIF, MP3, M4A, WAV