---
title: "Video Compressor — Documentation & FAQ"
description: "How to use Video Compressor, plus answers to common questions."
canonical: "https://www.razi.pro/tools/compress-video/docs"
tags: ["video compressor", "compress mp4", "reduce video size"]
source: "razi.pro"
---

# Video Compressor — Documentation & FAQ

Documentation for [Video Compressor](https://www.razi.pro/tools/compress-video) — Compress MP4, MOV, AVI, MKV, and WebM videos with optimized ffmpeg presets.

## Quick start

Upload a video (MP4, MOV, AVI, MKV, WebM), pick a preset, and compress. Output is MP4/H.264.

## Tips

- Videos up to 50MB are supported.

## Frequently asked questions

### How do I compress a video online?

Upload your video file (MP4, MOV, AVI, MKV, or WebM), select a compression preset, and click 'Compress'. The tool uses ffmpeg to reduce file size while maintaining quality.

### What video formats are supported?

The compressor supports MP4, MOV, AVI, MKV, and WebM formats. The output is typically MP4 with H.264 encoding for maximum compatibility.

### How much can I reduce my video file size?

Compression results depend on the original video. Typical reductions range from 40-70% without noticeable quality loss. Heavily compressed videos may see smaller reductions.

### Is there a file size limit for video compression?

Videos up to 50MB can be compressed. For larger files, consider using desktop software like HandBrake.