Instagram, TikTok and most Stories formats want a video file, not an animated WebP. Filemorph turns an animated WebP into an MP4 on your iPhone, ready to post.
Animated WebP is common for stickers and short loops saved from chat apps and browsers, but the social platforms built around short video — Instagram Reels, TikTok, Stories — expect an actual video file. Reposting a WebP loop as content usually means converting it first.
Filemorph decodes the animated WebP's frames with ImageIO and encodes them into an MP4 using AVFoundation and your iPhone's hardware video encoder, matching the original frame timing so the loop plays back at the right speed.
In the app: Convert → WebP → Video.
Video platforms are built for video files, and an MP4 posts, previews and autoplays in ways an animated image often does not. Convert an animated WebP to MP4 whenever the destination is a social video format rather than a chat app.
Yes. Unlike web converters that upload your files to a server, Filemorph converts every file locally using Apple's frameworks. Nothing leaves your device, and it works with no internet connection. This operation is part of Filemorph Pro ($29.99/year, 7-day free trial on monthly and annual plans).
Yes. Filemorph reads the frame timing from the WebP and encodes the MP4 to match, so the animation plays back at the same speed.
No, converting animated WebP to video is part of Filemorph Pro, which includes a 7-day free trial on monthly and annual plans.
Yes. The conversion runs entirely on your iPhone's hardware video encoder, so it works in Airplane Mode.
On-device, no upload. Plus 300+ more file operations.
Download on theApp Store