Summary: Does your video file take up too much space on your hard drive? Want to watch videos on the phone but the device is out of memory? To solve these problems, you need to reduce your video file size. This blog is a guide on how to reduce video file size online for free. Go check it out.
Have you ever tried to reduce a video file size by cutting down its video length or removing its audio? But is that really what you want?
In the article below, we’ll introduce you to the best way to reduce video file size and list the detailed steps to do so. Let’s walk through the post to find out.
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How to Reduce Video File Size Online for Free
Best Recommendation - FlexClip’s Free Online Video Compressor
Want to compress video file size online? FlexClip’s Free Online Video Compressor comes in handy. It is one of the best online video reducers that allows you to reduce large video files to smaller ones in a few steps. Though being totally free to use, it is powerful and very helpful. Best of all, it won’t leave a watermark on your compressed video. It supports various video formats, including MP4, MOV, M4V, AVI, WMV, FLV, MKV, and more.
Note FlexClip is also a free professional video editor with all the editing tools you need for video making, such as video trimmer , video converter, screen recorder, etc. Give it a try now.
Reduce Video File Size in Detailed Steps
Step 1Go to FlexClip’s Free Online Video Compressor and upload your video to the compressor.

Image Board: Step 1
Step 2Choose the compressed quality level and set the video resolution.

Image Board: Step 2
Step 3Click the “Compress Now” button and download your compressed video.

Image Board: Step 3
Bonus Tip: What Makes A Video File Size Larger/Smaller
Basically, the size of video file has impacted by three elements: resolution, bitrate, and encoding.
Resolution is what we often said the number of pixels. It is presented as a width and height measurement such as 1920 × 1080.

Image Board: Recommended Resolutions
Now, you may be wondering which resolution should you use. Actually, it’s based on which device you may use to watch your video. For example, if you need to watch it on a large screen, such as TV, you can stream in 1440p or 1080p.
We know that many of you pursue a higher-definition (4K) watching experience. But if the display of the screen is not good enough to reach 4K or 1080p, then a 4K-resolution video is useless. Therefore, the most suitable resolution for a device is the best.
The next one involved is how much information is transmitted every second. That's what we called bitrate. Here are some recommended bitrates for different frame rates and sizes.

Image Board: Recommended Video Bitrates
Note Although variable bitrate allows you to go above or below the target bitrate, it will give you less control on video file size, so you may wanna avoid to select this option.
What the last but not the least is encoding. we highly recommend you use H.264 encoding with MP4 encoder. In this situation, this is an effective and efficient way to compress your video.
The Bottom Line
Now you have learned how to reduce video file size online. Wish the free online video compressor mentioned above can really help you make your video file smaller. Please keep in mind that the most important thing during video compression is to find the balance between high video quality and small file size. Think this post is helpful? We'll appreciate it if you could share it with your friends.