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Best Free 4K Video Converter: How to Convert Videos to 4K for Free

With the rapid rise in 4K technology over recent years, many people are now looking for ways to convert their existing videos into 4K resolution. Finding the right tool to do this can be difficult as well as expensive. Fortunately, there are plenty of free 4K video converters available that you can use to make this happen - no spending a fortune on expensive tools necessary! In this blog post, we will go through 2 different types of free 4K video converters- AVCLabs Video Enhancer AI and Any Video Converter Free, to show you how to easily convert videos to 4K for free.

best free 4k video converter

Part 1: What is a 4K Video?

Before we dive into the best free 4K video converter tools, let's briefly understand what 4K video is. 4K resolution, also known as Ultra HD or UHD, refers to a resolution of 3840 x 2160 pixels, which is four times the resolution of 1080p full HD. 4K videos are becoming increasingly popular due to their superior picture quality, but they also require more storage space and higher bandwidth to stream or download.

Part 2: Best Free 4K Video Converter---Any Video Converter Free

Any Video Converter Free is a top-notch free 4k video converter that supports a wide range of popular media formats. It can quickly and easily convert videos to other formats such as AVI, MP4, WMV, MOV, MKV, MPG, and more. This versatile program also allows users to customize their own settings for output resolution, bitrate, frame rate, and so on. With its simple user interface and intuitive controls, Any Video Converter Free makes it easy for anyone to convert videos for use in specific devices or software programs. In addition to being a video conversion software, it also has features like downloading online videos, converting videos and photos to GIFs, inserting subtitles, cutting or trimming a video into segments, etc.

any video converter free

How to Convert Videos to 4K with Any Video Converter Free

This 4K video converter is totally free to download and use without any additional cost. And the steps to convert videos to 4K with it are simple.

Step 1: Download Any Video Converter Free and Upload Videos

Download and install Any Video Converter, launch it, and you will see such an interface. Click Video Converter and upload the videos from your local folder. You can upload multiple videos since it supports batch processing.

 avc free interface

Step 2: Set Video Resolution to 4K

Go to Basic Options and click the drop-download menu of video resolution, then choose 3840 x 2160 under Width & Height. If you need to change the video format or any other settings like video encoder, bitrate, frame rate, or audio settings, just go to the Video, Audio, and Subtitle sections to set them.

basic options

Step 3: Start to Convert Videos to 4K

After configuring all sets, click the Start button to convert videos to 4K.

start convert videos to 4k

Note: Any Video Convert Free can quickly convert video to 4k, but it will not enhance the video quality while converting resolution to 4K.

Part 3: Best Free AI-based 4K Video Converter---AVCLabs Video Enhancer AI

AVCLabs Video Enhancer AI is a revolutionary new technology that brings advanced video editing capabilities to everyone. This powerful 4K Video Converter utilizes artificial intelligence and machine learning technologies to convert videos to 4K or even higher, meanwhile quickly and accurately enhancing the quality of any video. With AVCLabs, users can easily make adjustments such as color correction, noise reduction, sharpening, denoising, cropping, and more — all with just a few clicks. The results are crisp, vibrant videos with improved clarity and definition that look like they were professionally edited. Whether you’re creating content for social media or upgrading home movies, AVCLabs Video Enhancer AI will help you create stunning visuals in no time.

Key Features of AVCLabs Video Enhancer AI

  • AI Upscale video to HD, 4K and even 8K
  • Enhance video quality with multi-frame
  • Remove noise to make the video clearer
  • Recover and enhance facial details with AI
  • Colorize B&W videos to bring them to life
video enhancer ai icon

How to Convert Videos to 4K and Enhance Video Quality Simultaneously

But converting videos with this 4K video converter, please check whether your computer configuration meets the system and hardware requirements for an optimal processing experience.

Video Tutorial: How to Convert Video to 4K and Enhance its Quality

Step 1: Install AVCLabs Video Enhancer AI and Upload Videos

Download and install AVCLabs Video Enhancer AI, then launch it. Click the "Browse" button to upload videos or drag and drop them to the workplace. Each user is allowed to convert three videos for free.

add video

Step 2: Set 4K Output Resolution

The most direct way to set 4K output resolution is to go to Presets section and select Upscale to 4K. There are 8 preset pre-configured options that you can use right away.


Alternatively, you can enable the AI Enhancement feature and set the output frame rate and output size with a range from 200% upscaled, SD to 4K and 8K in the Video section.

model list

Step 3: Configure Settings

Video Settings: you can manually adjust the brightness, saturation, and contrast of your videos to enhance the visual quality. In addition, there are also options like cropping to fill the frame and deinterlacing.

video settings

Output Settings: the section where you can set the output video format(MKV, MP4, AVI, MOV, WEBM), the encoder (H.264, H.265, VP9 Good, VP9 Best, AV1), the bitrate, audio settings, and output path.

output settings

Step 4: Start Converting Videos to 4K

Once all the settings are complete, click the Eye button to review 30 frames. Finally, click the Start Processing button to convert videos to 4K.

preview and start processing


In conclusion, if you’re looking for the best free 4K video converter tools, Any Video Converter Free and AVCLabs Video Enhancer AIare great options. Any Video Converter Free is perfect for converting videos to 4K with basic editing features, while AVCLabs Video Enhancer AI is ideal for enhancing video quality with advanced AI technology. Regardless of which tool you choose, just download it and try it right now.