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Video Processing | Reduce Video File Size without Loss

There are various reasons that you need reduce video file size, such as for uploading to social media, for storage, for sending by emails... But how can you do that without quality loss? The answer comes to a powerful video size reducer - MacX Video Converter Pro.

By Olivia Quinn to video, compression|Last updated on Nov 16,2018

While the videos are developing toward ultra HD resolutions like 4K, 5K or even 8K at an ever fast speed, we are facing with growing chanllenges of the size explosion. In most cases, we need to reduce the video size to make them acceptable by the social services, video sharing sites or devices. For example: YouTube says that the video is too large to be uploaded; a single HD movie eats up 50% storage of the iPhone; Email requires smaller file size to send the video...

Get the highest file size quota you can, or you will need to compress video size without losing quality. Worrying about the output quality? A professional and powerful program - MacX Video Converter Pro will help you shrink videos by up to 90% smaller without sacrificing video quality.

Part 1: Why You Need Reduce Video File Size

Firstly, let's have a look at the common sizes we will meet in daily life. Then you can find that sizes of modern videos are way too big.

▶ A minute of 4K video @60fps recoded by iPhone X: 200MB in HEVC and 400MB in H.264;
▶ A minute of 4K video @60fps shot by GoPro Hero6 Black: 600MB in HEVC;
▶ A minute of 1080P video @25fps exported from Premiere Pro CC: about 1.65GB in Apple Prores422;
▶ A minute of a RED 4K FF(6:1) video @24fps: 1.1GB;
▶ A minute of Phantom Flex 4K Raw video @24fps: 25GB.

Do you know the size limits of your favorite sites or services? YouTube supports a maximun size of 128GB so you're lucky. Others are out of luck. One FaceBook, only 4GB is allowed. WhatsApp allows pitiful 16MB. The limits of other email services range from 20MB to 10 GB. Feel helpless? Don't be. There is a way to compress video file size by up to 97% without losing perceptible quality loss.

Part 2: Three Methods to Get Videos Smaller

Method 1: Reduce Video File to Smaller Formats

Different video formats may vary distinctly in size, just you may see from the above table, and each format may excel others in special application. In other words, you can customize and shrink video file size based on your needs. (However, if you don't want to bother, the H.264 or H.265 will be your best choice.)

Compress video for Email: the maximum size that most email services like Gmail, Outlook.com, Yahoo, AOL etc permit is around 25Mb, that's about a few minutes only. In most cases, users will need to reduce video to smallest size for email. To this end, WMV is a popular choice, which will provide relatively small size and good quality.

Downsize video files for Android/iOS: all the mobiles come with limited storage, and a 4K UHD movie can occupy most space. To decrease high space video to low space video for playback on Android, iPhone iPad, H.264 MP4 will be the most suitable format. For newer devices, like iPhone iPad running on iOS 11, H.265 HEVC is suggested as it's designed with half the size of H.264.

Reduce video size for YouTube/Whatsapp/web: each video-sharing site imposes different limits on the sizes and formats. First, check if the site supports H.265. If H.265 is supported, then go for it. Besides, FLV, AVI, WMV, MP4 are the most commonly used formats on web, and H.264 is the best recommend. To shrink video for YouTube, Whatsapp, Facebook, and others, convert videos to MP4 or FLV.

Method 2: Adjust Settings to Reduce Video File Size

Video size = bit rate * length. Beyond this equation, video size involves various video audio parameters. Check the the factors that affect the size and select the best video settings to compress video size without quality loss.

1. Bit rate. Bit rate is used to measure the number of pits that are processed in a given amount of time. Bit rate will directly affect the size. Higher bit rate means large file size and better video quality, and lower bit rate refers to smaller file size but less quality. Lowering bit rates is an efficient way to shrink video size. To ensure good output quality, it's safe to lower the bit rate to one level below the original setting.

2. Resolution. Resolution refers to the number of pixels in an image. Currently, there are standard video (SD) 720 X 480 pixels and HD video 1,920 X 1,080, 4k UHD 4096 x 2160 and 8K FUHD 7680 X 4320 pixels. Generally, the higher the resolution is, the larger the file size will be. In other words, when you compress the downloaded 4k movie videos, or 4K clips recorded by camera or iPhone X, you may need a video resolution converter to do file size reduction.

3. Frame rate. Frame rate is also a factor to concern. The higher number of frames will bring smoother motion effect. This means that video in 60fps will result in higher video quality compared with video in 24fps. However, 60fps is not as common as 24fps, and this is because the more frames in a video will significantly increase the file size.

4. Sampling rate. Sampling rate is the number of samples of audio carried per second. Simply put, the higher sampling rate will result in higher audio quality. However, the higher quality means more samples are required, which will increase the final size. Therefore, the higher the sampling rate is, the larger the file size will be.

Method 3: Remove Unnecessary Parts

The video recorded may contain black bars or scenes that are not necessary. Deleting those parts will also make the video size smaller to a certain extent based on the parts you remove. In other words, you will need a tool that is capable to cut and crop, so that you can freely remove the blank or black space from the video scenes, as well as ads, advertising break or other unwanted parts. Plus, if your video is too large to be reduced to the size you need, you can split the video into smaller pieces.

Part 3: How to Compress Videos to Smaller Size without Losing Quality?

Now, your saviour is coming. MacX Video Converter Pro (or Windows Version), the most efficient video compressor designed for UHD/HD videos. It completely addresses the never-ending high-definition video size reducing prolem, and the poor output quality users may meet with other reducers.

▶ It supports 8K, 6K, 4K ultra HD, Full HD 1080P, HD 720P videos smoothly, no stuttering, jumpy or jerky processing;
▶ Its codec & parameters adjustment, editing features reduce video file size by up to 97%. (a 148MB 4K video is reduced to 3.58MB with no detectable quality loss);
Unique 3-Level HW provides full support to Intel QSV, Nvidia Cuda/NVENC, AMD APP GPU accelerations. This unique feature not only deliver 5x faster video compressing speed, but also remove the CPU overheating or stuck problems for 4K/HD video processing.
▶ High Quality Engine is a guarantee to the compressed video quality. About 98% original quality can be reserved.

[Guide] How to Compress Video for Whatsapp/Mobiles/Email

Step 1: Free download this video size reducer on Windows PC or on Mac computer, launch it and click "Add File" to load the video files.

Step 2: To decrease video file size, there are three options to go:

#Option 1: In the poping-up window, select an output format. Here you can downsize video files from large-size formats into smaller ones: like H.264 to HEVC, MKV to MP4, FLV or WMV. Normally, to shrink video file size without losing quality, H.265 is the best choice; but for better compatibility, H.264 in MP4 format is highly recommended. For the perfect format for your specific purpose according to the section above. You can choose to YouTube, Facebook, Vimeo and it will convert the video to suitable size and quality;

How to reduce video files without losing quality

#Option 2: Then click the to enter into the video setting window. Shrink video file size by adjust the video settings: you can downsize UHD videos to HD files to get smaller size, lower the bit rates of the video and audio, adjust the frame rate or change resolutions from 1080P to 720P;

How to reduce video files without losing quality

#Option 3: After that, click the Edit icon to access the editing features. Here you can cut out unnecessary length can also reduce the video size, like unwatnted ads & commercials, black bars etc.

How to reduce video files without losing quality

Step 3: Click the output folder you want to save the output video by clicking "Browse" button. To allow the fast speed compressing 4K/HD videos and remain the top video quality, do remember to check the Intel/Nvidia/AMD Encoder and High Quality Engine on the lower part of the interface.

Step 4: After the above steps, click the "RUN" button to start to reduce video size without losing quality. The whole video file size compression task will be done within merely mins.

Part 4: Video Compression Performance of MacX VS Handbrake

Why is MacX Video Converter Pro the best video size converter to convert videos small and fast without losing quality? To better illustrate its compress performance, below we have a simple comparison of the output sizes reduced by MacX Video Converter Pro and the famous video converter Handbrake.

Source video: a 4min 29s 4K UHD video in MKV format;
Output video: H.265 1080P @30fps, H.264 1080P @24fps, 1080P in MPEG4, FLV, WMV and AVI.
Summary: According to the tests, both video file compressors can convert the UHD video into smaller file with fast speed. First, MacX Video Converter Pro is faster than Handbrake. For example, to shrink the raw 4K video to HEVC 1080P, Handbrake takes 7 minutes while MacX Video Converter Pro uses 2 minutes only. More importantly, MacX Video Converter Pro has a better compression ratio up to 1:28 when convert the MKV UHD into HEVC format, compared to 1:13 in Handbrake. It's hard to tell the quality differences using both video file reducers.

macx video converter pro vs handbrake

Best recommended video settings for file size compression

Besides, many other parameters like memory size, processing speed, colour palette etc also affect the video file size. For those who have trouble figuring out the most suitable format or settings when they shrink/reduce video file size without losing quality, here we also suggest the best video settings that you can follow to compress high space video to low space video with the above HD/UHD video size reducer.

4K UHD/HD 1080p video file size reduction SD video file size compress
Format MP4 (file extension .mp4) Format MP4 (file extension .mp4)
Video
Codec: H264 (High profile)
Frame Rate: 24, 25 or 30 (Constant)
Frame Size / Resolution: 1280 x 720 (720p)
Fields: Progressive
Bitrate: 5,000 – 10,000 kbit/s
Video
Codec: H264 (Baseline profile)
Frame Rate: 24, 25 or 30 (Constant)
Frame Size / Resolution: 1024 x 576
Fields: Progressive
Bitrate: 2,000 kbit/s
Audio
Codec: AAC-LC
Bitrate: 320 kbit/s
Sample Rate: 44.100 OR 48,000 kHz (retain original sample rate)
Audio
Codec: AAC-LC
Bitrate: 128 kbit/s
Sample Rate: 44.100 OR 48,000 kHz (retain original sample rate)
Still have any problem on how to reduce 4K UHD, HD video file size without any quality loss, just email us >>
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