Compress 4K or Large Videos in VideoProc Converter AI

VideoProc Converter AI, with Max-Quality Compression Engine and high-efficient codecs, can reduce video size by possibly over 90% in one click while keeping the maximum quality. It offers 7 compression methods (incl. specifying the target size directly) and is optimized for 4K videos, high-speed sport/game footage, and clips with complex motions, making it a breeze to shrink your videos and make them easier to store and share. New! AI-powered Stabilization, Super Resolution, Frame Interpolation to bring a quantum leap in visual quality.

Flexible Video Compression


Specify Whatever Size You Need

The easiest and most timesaving way possible to make your videos smaller!

Specify the output size by entering the target size directly! Plus, dragging is now shrinking thanks to VideoProc Converter AI's compression ratio slider. It lets you reduce a video to 10% (or any value between 10% and 100%) of its original size by easily dragging the slider.

A no-brainer way that can suit almost all your compression needs and is especially efficient for fitting your video within a size limit for social media and video share platforms like YouTube, TikTok, Discord, etc.

  1. Step 1. Import your footage.
  2. Step 2. Find Compress in the toolbox.
  3. Step 3. Enter the target size or drag the slider to set the compression ratio.
  4. Step 4. Reduce the resolution or change the video format as you need.
  5. Step 5. Click Done and hit RUN.
Before: 1 GB After: 717 MB
Refer to the size limits for prevalent platforms. Compress your videos instantly:
YouTube TikTok Vimeo Dailymotion Udemy Metacafe IGTV Instagram Meta (Facebook) Twitter Snapchat Pinterest Tumblr Reddit Discord WhatsApp Telegram Meta Messenger Gmail Outlook Dropbox
Size Limit 256GB Web: 1GB
iOS: 278.6MB
Android: 72MB
Basic: 500MB/Week 2GB 4GB 100MB 650MB (10min) 3.6GB (60min) 650MB (10min) 3.6GB (60min) 4GB 512MB 1GB 2GB 100MB 1GB Free: 8MB
$9.99: 100MB
$4.99: 50MB
16MB 25MB Around 25MB 25MB 25MB 2GB

Re-encode or Transcode - Compress in One Click


Convert to reduce the video file size. Support videos from everywhere, like GoPro, DJI, 4K camcorders, screen records, and so on. Prevent quality degradation caused by auto-compressing of the video platform.

Re-encode MKV/MP4/AVI/MOV Videos

Re-encode a video in one click to get smaller file size. Just input your video, and click RUN to output the file without making any settings. VideoProc will compress the video for you with the advanced compression algorithm. For example, you can reduce the file size without changing the original H264 codec, which is compatible with more video apps and platforms.

Transcode to Highly Compressed HEVC

HEVC/H.265 is known for high coding efficiency and great compression ability. As a successor to AVC/H.264, HEVC offers better data compression at the same video quality. According to our test, converting H.264 to HEVC in VideoProc Converter AI can save about 90% file size without a perceptible quality change.
373 MB
Format/codec: MP4 H.264
Resolution: 1920x1080
Overall: 66.3 Mbps
Frame rate: 29.97 fps (CFR)
28.2 MB
Format/codec: MP4 HEVC
Resolution: 1920x1080
Overall: 4138 Kbps
Frame rate: 29.97 fps (CFR)
Is HEVC or H.264 supported by popular platforms?
YouTube TikTok Vimeo Dailymotion Udemy Metacafe IGTV Instagram Meta (Facebook) Twitter Snapchat Pinterest Tumblr Reddit Discord WhatsApp Telegram Meta Messenger Gmail Outlook Dropbox

Increase GOP Length - No Perceptibly Quality Loss

Best for low-motion videos, also optimized for high-motion videos!

A much longer GOP length will compress a video more efficiently, especially for low-motion or more static videos with little frame changes. Increasing the GOP length can provide higher video quality at lower bitrates. But if your footage is shot at high frame rates, high speed, or has complex subject, you can also try to adjust the GOP length slightly to get a smaller file size.

Adjust the GOP length value in VideoProc Converter AI to get up to 90% small file size.
Import a video -> choose an output format -> go to Option -> find GOP and set the value:
  • For low-motion video: set the GOP value between 90 and 250 generally.
  • For sports or high-motion video: set the GOP value to 30-60 generally.
  • For further editing: set the GOP value to 30 generally.
GOP Overall Bitrate Duration Format/Codec Resolution Frame Rate
485 MB
60 66.3 Mbps 1 min 1 s MP4 HEVC 2704x1520 59.94fps (CFR)
30.2 MB
250 4138 Kbps 1 min 1 s MP4 HEVC 2704x1520 59.94fps (CFR)

More Useful Methods

Lower Frame Rate. Theologically, higher frame rates lead to a smoother video experience. However, if there's little action happening in the video, like in a podcast, webinar, or DJI shot, reducing the frame rate can shrink the file size without noticeable quality loss.

Reduce Bitrate. A higher bitrate generally means a larger size and better quality because more data is uploaded per second. However, there is a point of diminishing returns where further increases in bitrate do not improve perceived quality.

Downscale Resolution. The video quality improves with higher resolution, as it provides more pixels with color and luminance info. but this comes at the cost of a larger file size. Luckily, the differences between 1080P and 4K or 1080P and 720P video are not particularly noticeable on small-screen devices such as iPhones.

Adjust Audio. The majority of people tend to watch videos on social media with the sound muted. Try removing the audio or adjusting the audio bitrate/sample rate/channel to make your video smaller.

Tips If you are not satisfied with the quality of a video compressed in an editing application, you can try exporting the edited file in an intermediate code and then compressing it with VideoProc Converter AI.

Make Videos Shorter | Smaller

Cut off Unwanted Clips
Cut and remove the unusable segments in a video. Shorten the video to reduce the final file size while keeping the original video/audio quality.
Split Long Video into Pieces
Many UGC sites have restrictions on the uploaded file length. If your video is long, you can split it into parts to export and upload them separately.
Crop and Resize
Crop the frame size of a video to remove an unwanted area to save size. You can keep the original aspect ratio or resize the video image to fit a different screen or platform.
Convert 4K to 1080p/2K
4K is a big workload for computing, editing, and uploading. Compressing 4K to 2K/1080p/720p will reduce the file size greatly. The quality is fine if played back on a smaller screen.
Video to GIF
Adding a GIF instead of a video as an attachment is friendly for Email sending. Changing your video into an animated GIF will reduce the file size while making it fun.

Fix Video Playback Issues

Resolution Too High
High resolution, esp. 4K is power consumption. Only the latest hardware with faster write speeds can handle high-quality videos and modern formats. Lowering the resolution can make your high-resolution videos playable on any device without stutters.
Frame Rate Too High
There is an upper limit on the frame rate that a mobile phone or other device can support for playing a video. A 4K 120fps video, for example, needs extremely high decoding and playing ability. If you want to play a high-fps video on a low-end device, you should reduce the frame rate.
Free Add-on Features

Beyond Ultimate Video Compression

VideoProc Converter AI goes beyond being a GPU-accelerated video compressor. It's an all-in-one 4K-capable video processing software that lets you convert, resize, download, record, and edit videos and audio. Before compressing a file, it can be pre-processed using AI features to improve quality, such as utilizing frame interpolation to create smooth transitions in the video to improve the fluency of the video for enhanced visual acceptability of the compressed file.

Convert Videos

Convert all types of videos, audios, and DVDs;
Support 420+ output formats for different uses;
Level-3 Hardware Acceleration, 47x faster.

Quick Editing

Crop, merge, split, cut, rotate, change speed, defisheye
Deshake, denoise; AI visuals enhancement tools:
Stabilization, Super Resolution, Frame Interpolation.

Record & Download

Bulk download online videos, audios, and playlists;
Capture desktop / iOS screen for gameplay, tutorial, etc.;
Green screen, PiP, and utility tools for creative recording.

What's the quickest way to compress a video?



Click the Video Converter icon, and click the "+ Video" button or drag the video file(s) to the interface.



Go to the "Target Format" section, hit "Toolbox", and then choose Compress.



Directly enter the target file size or drag the slider to change the compression ratio.


What are the typical scenarios for utilizing the 7 compression methods?

These 7 methods can be employed individually or in conjunction with others, tailored to specific compression needs.

Why is VideoProc Converter AI is the best video compressing software?

1. VideoProc Converter AI can resize videos to meet your specific size requirements with 7 comprehensive compression methods, suitable for users of all proficiency levels.

2. It can achieve file size reduction of up to 90% without compromising image quality.

3. It supports a wide range of formats and codecs, including both mainstream and obscure ones, ensuring compatibility with any file type.

4. With a remarkable 47x faster processing speed, you can compress multiple videos in bulk swiftly and efficiently even on mid-end PCs and Macs.

VideoProc is a primary branch of Digiarty Software that is a leading multimedia software company founded in 2006. It endeavors to provide easier hardware-accelerated video audio editing and conversion solutions. The installed base of the VideoProc product has reached 4.6 million units from 180 countries since its release 5 years ago.

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