What the tool does, how to run it, and what to expect from the result.
HEVC (H.265) is the efficient codec iPhones and many cameras record in; older PCs, TVs and editors cannot play it. MP4 (H.264) is the video format that plays on every phone, browser, TV and social network. The video is decoded and re-encoded by ffmpeg running in your browser, so formats your browser cannot play are read too. The result is H.264 MP4, the most widely playable video there is. Nothing is uploaded: the file never leaves your device.
Short, plain-language definitions for the formats and settings above.
A quick way to understand who this helps, what it solves, and where it connects next.
Anyone with an audio or video file in a format their app or device will not open.
Using the hevc to mp4 converter without installing anything or signing up.
Short answers for the questions people usually have before trying a utility like this.
No. The conversion runs in your browser tab, so nothing is sent to a server and there is no upload wait.
The video is re-encoded, which always costs a little; at the default setting the difference is hard to see. Long or 4K videos take a while in the browser, so trim first if you only need part.
Nearby tools from the catalog that fit the same job or workflow.
Convert a 3GP video to MP4
Convert a 3GP video to MP4. Free, in your browser, no upload.
Convert a M4V video to MP4
Convert a M4V video to MP4. Free, in your browser, no upload.
Save MP4 video frames as PNG images
Save MP4 video frames as PNG images. Free, in your browser, no upload.
Convert a VOB video to MP4
Convert a VOB video to MP4. Free, in your browser, no upload.
Convert flat JSON to CSV
Convert flat JSON rows into CSV locally and reject nested structures with a clear message.
Convert keyboard layouts
Convert pasted text between supported keyboard layouts locally with direct key-map remapping.
Cleanor puts these tools in one app: compress and convert images, video, and audio, work with PDFs, and scan text right on your device. Plus free up storage and clear inbox clutter with Email Cleaner. Start with a free trial.
Normalize MOV, WebM, MKV, AVI, MPEG, MPG, and M4V input into a browser-ready MP4 export.