Compress GoPro Video
Opens at 1080p and 30 fps: the version of a GoPro clip you send to people.
This page opens the compressor with Screen size at 1080p and Frame rate at 30 fps. When you load a clip, the After size is filled in with a size computed for 1080p at 30 fps. MP4 (H.264) is the default format.
Free Video Compressor
No sign-up. No upload. No size limit.
Nothing is uploaded — the file is compressed on your device.
Why GoPro files are so large
GoPro records for editing. The HERO13 Black goes up to 5.3K60 and 4K120, and on the HERO12 and HERO13 every 2.7K, 4K and 5.3K mode is recorded in HEVC (H.265). Long recordings are split into chapter files, 4 GB each on older cameras and 12 GB on newer ones (GoPro Labs, checked September 2026). Each chapter is its own MP4, so compress them one at a time.
Reading HEVC in the browser needs a hardware HEVC decoder. Chrome has no software HEVC decoder, so a computer without one cannot open a 4K GoPro clip here and shows "This browser cannot decode this video."
What the preset changes
1080p has a quarter of the pixels of 4K, and 30 fps has half the frames of 60. The output is H.264 in an MP4, which Windows plays without Microsoft's HEVC Video Extensions add-on. Screen size only lists steps below the source, so a clip that is already 1080p or smaller stays at Original.
For YouTube, set Screen size and Frame rate back to Original, or open the YouTube page. Keep the original file if you want 60 fps slow motion in an edit later.
Long clips
The output is written to disk while it is produced, so a 12 GB chapter works. A progress window shows elapsed and remaining time, and the screen is kept awake. If you only need the jump or the run, trim ↗ the rest first.
Frequently asked questions
Why won't my GoPro video play on Windows?
Most likely it is HEVC, which Windows plays only with Microsoft's HEVC Video Extensions. The H.264 MP4 made here plays without it.
Will I lose the slow-motion option?
For the compressed file, yes: it is 30 fps. Keep the original for editing.
Does it keep HyperSmooth stabilization?
Yes. HyperSmooth is applied in the camera, so it is already part of the picture.
Can it join chapter files into one video?
No. It takes one file at a time.
Compress GoPro Video
Opens the compressor set to 1080p.