Video compressor & trimmer
Cut a clip to the part you need and make it smaller.
The video plays through once while it's processed, so a 30-second clip takes about 30 seconds. Keep this tab open.
How it works
Trimming
Set start and end times to keep only the part you want. Leave them as they are to keep the whole video.
Making it smaller
A lower width and quality setting mean a smaller file. Medium is good for sharing in chats; High suits uploads.
Output format
Your browser decides the output: Chrome and Edge often give MP4, others give WEBM. Both play on most phones and computers.