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4K Video Converter | How to Convert Videos to 4K for Free

In today’s digital world, 4K video is becoming increasingly popular. With 4K displays becoming more affordable, it’s now easier than ever to get the highest quality viewing experience. But what if you want to convert your existing videos to 4K quality? Well, the good news is that there are a variety of free 4K video converters available that allow you to easily convert any video to 4K quality. In this guide, we’ll show you how to convert videos to 4K quality for free. We’ll walk you through the step-by-step process of using a 4K video converter, and provide tips to help you get the best results. So, if you’re ready to upgrade your videos to 4K quality, keep reading to learn how.

convert video to 4k

Part 1: Enhance Video Quality to 4K with 4K Video Enhancer

AVCLabs Video Enhancer AI is an excellent way to enhance the quality of your videos, and convert them to 4K for viewing on a 4K monitor. As an AI-based 4K video converter, it gives you the ability to enhance and convert any low-resolution videos from 720p, 1080p to 4K, even up to 8K with details kept. Powered by the AI technology, it does all the conversion work automatically, no professional video editing knowledgy are reuqired. Moreover, it supports a wide range of video file types including MP4, MKV, WMV, AVI, MOV, H.264, H.265, etc.

4k video converter

Video Enhancer AI

  • Enhance the video quality to make them more aesthetically pleasing.
  • Upscale videos from SD to HD, HD to 4K.
  • Sharpen faces from blurry video and enhance facial details.
  • Support denoising and deinterlacing videos as well as cropping videos to fill frame.
  • Support GPU & TensorRT acceleration.
video enhancer ai

How to Convert Videos from 720p, 1080p to 4K Using AVCLabs Video Enhancer AI

Step 1
Install and Run AVCLabs Video Enhancer AI

Warm reminder: Before converting videos from 720p, 1080p to 4K, you are able to click here to check whether your CPU or GPU is capable of enhancing video quality to 4K with AI.

Download and install AVCLabs Video Enhancer AI on your Windows PC or Mac computer and then simply open it to start using this powerful 4K video converter.

main interface
Step 2
Import Low-res Videos, Select the AI Model and Set the Output Parameters

Add one or multiple low-res videos from your computer to this 4K Video Converter, then you can set up some parameters like processing AI model, output resolution, output format and output path, brightness, contrast, and saturation, etc.

add low resolution video

To convert video to 4K, just go to Presets section under the right panel and select Upscale to 4K.

Step 3
Trim the Output Video

Before upscaling the video to 4K, you are capable of trimming the unwanted parts frame by frame to save processing time. At the bottom of the program, you are also able to trim your video to the desired length by dragging the slider bar. Or input the start and end of the frames to set a clipping point accurately.

Step 4
Start Converting Videos to 4K Automatically

After you completed all the settings, you can click on the Start Processing button to start to convert low-res videos to 4K automatically.

Once the 4K video converting process is done, you can open the output video folder to enjoy the converted 4K video.

Part 2: Convert Videos to 4K for Free Using Any Video Converter Free

If you don’t want to use a video enhancer or you do not have the need to enhance the video quality, you can convert your videos to 4K using a free video converter - Any Video Converter Free. Any Video Converter is a free video converter that allows you to quickly and easily convert your videos to 4K. It also comes with multiple video editing features such as trimming any video files into several clips , merging multiple media files into one to make your own video, cutting off unwanted borders from a video frame to feature a favorite clip, adjusting brightness, contrast, saturation, resolution, adding subtitle, watermark, etc.

Features of Any Video Converter

  • Convert videos between any formats freely.
  • Download videos and music from 100+ sites.
  • Edit video clips with cut, crop, and special effects.
  • Add transitions to your video clips to showcase the scene changes, or seamlessly join separate shots.
  • Adjust the audio volume and add audio effects.
  • Support NVIDIA NVENC hardware acceleration.
any video converter

Steps to Convert Videos to 4K for Free Using Any Video Converter Free

Step 1
Download and Run Any Video Converter Free

Download and install Any Video Converter Free on your computer, and then launch it.

open any video converter free
Step 2
Navigate to the VideoConverter Tool and Add Videos

To convert videos to 4K, just go to the VideoConverter tool and then click on the +Add Video button to add one or multiple videos to the program.

select video converter
add video to any video converter free
Step 3
Customize the Video Resolution

Now, you can set the output profile on the left panel. Simply click on the Basic options, then scroll down to Video Resolution and select "3840X2160" or "4090X2160" .

select video resolution
Step 4
Start Converting Videos to 4K for Free

After all the parameters are set, click on the Start button to convert any videos to 4K.

convert video to 4k

Part 3: Convert Videos to 4K Online for Free

If you want to convert your videos to 4K, but don’t want to download any software, then you can use an 4K video converter online. HDconvert is the tool we recommend. HDconvert is a web-based video converter that allows you to convert videos to 4K online for free without installing any plugins or software. The only drawback is that the trial version limits output files to 720p unless you upgrade to the premium version.

Steps to Convert Videos to 4K Online for Free

Step 1
Visit HDconvert

Open HDconvert online converter, and hit the button on its center to start to convert a file now.

Step 2
Upload a video to HDconvert

Upload a video file and choose MP4 as the target video format to proceed.

Step 3
Start Converting Videos to 4K

If you are using its premium plan, select 4K as the output video quality. Otherwise, you are only allowed to convert video to HD 720P.

Step 4
Download Converter 4K Videos to Computer

When it finishes converting the normal video to 4K, simply download the video to your device immediately as the download URL will expire in 24 hours.


Now, you can enjoy watching your converted 4K videos on your 4K monitor at home or office. If you want to convert your videos to 4K, but don’t want to use any video enhancer or video converter software, then you can use an online video converter such as HDconvert. If you do not want to pay any fee to convert video to 4K, Any Video Converter Free is highly recommended. If you have the need to enhance video quality while converting videos to 4K, AVCLabs Video Enhancer AI is the perfect choice.

Try AVCLabs Video Enhancer AI to breathe new life into your footage!