How to compress a 2.5 GB video?

Question

Video

usually offer paid options or with a watermark

Answer 1

ffmpeg is free, but works through the command line. Available for Windows and Linux.
An example of transcoding video from 720 to 480:
ffmpeg -i input.mp4 -vf scale=720:480 output.mp4
file size decreased from 55 MB to 14 MB.
Through the command line parameters, you can set anything: format, bitrate, resolution, you can crop by time, etc. Command line examples for different actions can be googled.

Answer 2

install video editor and compress

Answer 3

compress video

Is it to compress? I don’t know where you get uncompressed from, but almost any modern source of video information gives already compressed, more or less. If you need to make a less compressed one more compressed, then editorial functions are not needed for this (they only make it difficult to master), a format converter is enough.
The simplest and most common video converter (and not only video, there are a lot of things there) is Free Studio.

Answer 4

upload it to YouTube, download the result from the link in the panel, delete it from YouTube.
and you don't need any software

Answer 5

VCT . In fact, a GUI for ffmpeg, but quite usable if you figure it out. And you need to understand - there is no "do it well" button in VCT.