Video Converter & Compressor for iPhone
Convert and compress MP4, MOV, MKV and AVI on your iPhone — MP4 to MKV, MOV to MP4, AVI to MP4, MP4 to GIF and more. Full control over resolution and quality. No uploads, no ads, no size limits.
Drag & Drop Video Here
or browse to select — MP4, MOV, MKV, AVI…
Videos are processed on your device, never uploaded.
Popular video conversions
Change containers and codecs, shrink large clips, or pull out the audio.
How to compress video on iPhone
- 1
Get the App
Download ConvertEase free and tap Video.
- 2
Pick Your Video
Choose a clip and set the format, resolution and quality.
- 3
Convert & Save
Tap convert and save or share in seconds — fully offline.
Video converter FAQ
Download ConvertEase free, tap Video, pick your clip, choose a target size or quality and tap Convert. The compressed video is processed entirely on your iPhone and saved in seconds — no uploads required.
Open ConvertEase, tap Video, select your file and choose MKV or MP4 as the output. The container is changed on-device while letting you keep or adjust resolution and bitrate.
Yes. ConvertEase converts MOV and HEVC to MP4 while letting you choose resolution and bitrate, so high-quality presets keep the result visually identical to the original.
Yes. You can convert MP4 to MP3 to pull out the audio, or convert MP4 to GIF to create a short looping clip — all on-device.
Yes. Every video is processed 100% on your iPhone and never uploaded, so it is far safer than online converters and works offline.
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Convert & compress your video in seconds
Free, private and ad-free. Convert MP4, MOV and MKV right on your iPhone.