Upload an MP4 file and shrink its size by re-encoding the video at a lower bitrate. Re-encoding long videos takes a while, so keep the tab open.
Your file never leaves your device. All processing happens right in your browser, and nothing is uploaded to a server.
MP4s from phones and cameras are encoded generously; there is usually plenty of size to reclaim. This tool re-encodes the video at a lower bitrate locally, with no upload, watermark, or signup.
A 25 MB email cap meeting a 200 MB clip, chat apps that mangle videos with their own crude compression (yours will look better), course platforms with per-file limits, and phone storage filling with 4K footage.