Fix TikTok's "resolution must be at least 540x960" and "bitrate must be at least 350 Kbps" errors. Drop in a video and download an MP4 that passes both checks.
Runs in your browser. Your video is never uploaded.It re-encodes your video as an H.264 MP4, the format TikTok recommends. If the short side is under 720 pixels, it scales the video up, so a 480×854 clip comes out at 720×1280, well past TikTok's 540×960 minimum. Videos bigger than 1080×1920 are scaled down. The shape stays the same: nothing is cropped or stretched.
Audio that is already AAC is copied untouched. Other audio, like Opus from a WebM file, is converted to AAC.
A still background with text compresses so well that an encoder needs only a few Kbps for it, and TikTok rejects anything under 350 Kbps. The converter aims for at least 2,500 Kbps of video, the highest minimum TikTok lists for ads. When the encoder can't use that many bits, the converter pads the stream with H.264 filler data, the same padding broadcast encoders use to hold a constant bitrate. Players skip the filler, so your video looks and plays exactly the same.
No. The conversion runs on your device with your browser's built-in video encoder (WebCodecs). This page never sends your video to a server.
Current versions of Chrome, Edge, Safari, and Firefox. iPhone HEVC videos need a browser that can decode HEVC, such as Safari or Chrome on a Mac or Windows PC.