The Top 4 Free Online Video Compressors

To resize the video file size to a smaller degree, you need to figure out the concerned parameters that affect the video size first.

Bitrate:

The higher the bitrate, the better the quality and meanwhile the larger the video file. So when you are using an online video file compressor and it supports you to change the bitrate, you can adjust this parameter to a lower degree to shrink video size.

Video Encoder:

There are many commonly used video codecs and some encoders with high compression ratio can offer superb video quality even at a lower bitrate, such as H.265/H.264. As for downscale video size by adjusting video encoder, if the video reducer supports, you can change it in this order: H265 (HEVC) = VP9 > H264 > XVID > MPEG4 > DIVX > Others. By the way, the compression ratio for H.265 is much better than other encoders (formats) for the same video file. If you try to reduce video size online without losing quality, you can choose the advanced H.265 encoding approach but please make sure you don’t alter any other settings including bit rate and resolution.

Video Duration:

With the same bitrate, resolution and video encoder, the video duration would determine the video size. Put simply, having the same bitrate, a 1080P 60-minute video with H264-MP4-AAC is definitely larger than a 1080P 45-mintue video with H264-MP4-AAC. So if you have shot or download some YouTube videos and want to minimize them, cut off some unnecessary part can be useful.

You may also like: Top 5 online video converters l Top 5 free online audio compressors l Top 5 online MP3 editors

As a fabulous video reducer online service, clipchamp.com can help you decrease video file size online freely. Besides reducing videos, this service will convert, edit, and record videos. After compression, you can save the video to your local disk or directly upload it to YouTube, Vimeo, Facebook, Google Drive. This is quite convenient.

Pro:

No artificial limits on input file size, format, and resolution.

Add batch videos for compression on Chrome exclusively.

Con:

Registration needed.

Only allow you to shrink 5 videos per month with a free account.

Must install Clipchamp extension to save the reduced videos to your chosen storage location.

How to compress video online free via clipchamp.com:

1. Visit [https://clipchamp.com/en/].

2. Register an account. And you can choose the free version to have a trial on video compression.

3. Click the “Convert my video” big button to upload the target video and then set the final video storage location.

4. Then optimize the video for web, mobile, etc. and customize video resolution, format, quality.

5. Hit the Start button to minimize video size online.

Videosmaller.com, a powerful free online video compressor, which can compress video online freely and easily for emailing, sharing, etc. It renders users a friendly interface and you can master the video downsize process at the first time. Apart from video resizing, this site can also serve as an audio compressor, PDF file converter/reducer, increase video volume and more.

Pros:

Totally free service for video decreasing.

Resize video online to smaller one by simple steps.

Automatically remove the upload video after hours for security.

Cons:

Specific input video file size limit: max 500MB.

Limited video formats are supported and it's time-consuming.

How to compress video size online free via videosmaller.com

1. Go to the official site [http://www.videosmaller.com].

2. Click Browser to upload your video.

3. Based on your needs to select the “Use low compression level” or reduce video width.

4. Then upload video like MP4 to compress MP4 video to smaller size online free.

5. After done, download the reduced video to your computer.

Ezgif.com is a versatile site that can resize video online, convert video/audio, edit video, add subtitles, etc. and it is warmly welcomed by many users. You can decrease size of video online by changing video encoder (such as convert to H264) and width/height.

Pros:

Free services and simple steps to compress video file size online.

Can both downscale and upscale video files.

You can paste video URL to shrink the related video.

Cons:

Limited input and output formats. File size limit: Max 120MB.

Slow upload and video decrease speed.

How to use ezgif.com to resize video online free:

1. Head to [https://ezgif.com/resize-video].

2. Hit “Choose File” button to upload video or paste the video URL.

3. After uploading, change the related parameter.

4. Click the blue “Resize Video” button to shrink video file size online.

Clideo is a web-based video compressor that is also capable of cutting, cropping, resizing, merging videos, adding subtitles, etc. It has a clean and well-designed interface. Users can import the videos from the local file and the cloud.

Pros:

Provide video editing tools.

Able to import/output video from/to the local and cloud.

Automatically reduce the file size.

Cons:

Cannot change the formats.

Output files with a watermark in its free version.

Limited file size.

How to use Clideo to compress video files online free:

1. Visit https://clideo.com/compress-video in your search engine.

2. Click “Choose file” to upload the video you want to compress.

3. Wait for the uploading and compressing processes.

4. Press “Download” to save the compressed video.

Besides the listed 4 free online video compressors, you can also try cloudconvert.com, which can downsize your local videos and video from Dropbox, Google Drive, OneDrive, etc. by cutting video length (like trim MP4). All the above recommended free online video size compressors are free services and you do not need to install any program on your computer. Still, most of them will take too much time to decrease video size. And sometimes, the server might crash for uncertain reasons like network connection, etc. As a result, the compressing process would be interrupted, you have to repeat the whole video compression steps. This is quite annoying especially when you are going to finish the compression task.

To avoid the above troubles, you can use WonderFox HD Video Converter Factory Pro, the excellent desktop video compressor for PC. And let’s have a look at this compression tool.