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Free 4K Video Converters: How to Convert Video Quality to 4K

As technology advances at a rapid pace, the demand for high-quality video experiences continues to soar. However, many individuals and businesses are often faced with the challenge of converting their existing videos to the impressive 4K resolution. Thankfully, the availability of free 4K video converters has made this process more accessible than ever before. There are so many types of 4K video converters, but not all of them are as good as what they claim to be.

This article aims to explore some good 4K video converters that are really free and effective, as well as introduce to you what they are, their main functions, and how to convert videos to 4K with these free 4K video converters.

free 4k video converter

Part 1: Best Free 4K Video Converters for Windows - Any Video Converter Free

Any Video Converter is a totally free and comprehensive 4K video converter. In addition to converting videos across diverse formats, such as converting MPEG to mp4 or video to auto, it also possesses the capability to modify the resolution and frame rate of videos. Alongside the basic video conversion function, Any Video Converter offers a range of supplementary features, such as video editing tools that empower users to trim, crop, merge, and apply effects to their videos, as well as download online videos to MP3, MP4, and MKV. It is known for its user-friendly interface and fast conversion speed, making it a reliable choice for both novice and experienced users.

Features of Any Video Converter

  • Convert videos to 60fps.
  • Download and convert videos to 4K.
  • Convert videos between any formats freely.
  • Download videos and music from 100+ sites.
  • Edit video clips with cut, crop, and special effects.
  • Support NVIDIA NVENC hardware acceleration.
any video converter

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

Step 1
Download Any Video Converter Free Upload Videos

Download Any Video Converter and launch it. Click Video Converter and upload the videos you want to convert to 4K. You can upload multiple videos for batch processing.

open any video converter free
Step 2
Set Video Resolution to 4K

Navigate to Basic Options and locate the dropdown menu for video resolution. Click on it to reveal a list of options, and select the resolution of 3840 x 2160 from the Width & Height category.

set converted resolution to 4k
Step 3
Start to Convert Videos to 4K

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

start conversion

Part 2: Free 4K Video Converters for Windows and Mac - VLC Media Player

VLC media player, as a free and versatile multimedia player, is primarily designed for playing various file formats rather than converting videos to specific resolutions like 4K. But it has a lot of hidden features, such as converting MOV video to MP4 and converting video to 60FPS. Now let’s check how to convert videos to 4K for free with VLC.

Step 1: Open the VLC media player and click on Media in the top menu bar, then select Convert / Save.

vlc media player

Step 2: Click on the Add button to import the video file you want to convert to 4K and then click Convert/Save.

upload video files

Step 3: Click on the spanner icon – Edit the selected profile.

edit selected profile

Step 4: Go to the Video codec in the "Profile Edition" window and click Resolution. Then manually set the frame size to 3840 x 2160. Finally, click the Save button and choose the destination file.

set 4k resolution

Part 3: 4K Video Converter Online Free

Convertio is an online free 4k video converter that grants users the ability to convert the video resolution and transform diverse file types from one format to another. The platform also provides a range of customization options for the resulting files.

This video converter offers both free and paid versions, with the latter offering supplementary benefits such as increased maximum file size and priority support, catering to the varying needs of its users.


Best Option: AI-based 4K Video Converter for Windows and Mac

While the above three free 4K video converters can help convert video to 4k, they do not inherently enhance the video quality during the conversion process. However, AVCLabs Video Enhancer AI takes video conversion to the next level. By employing sophisticated algorithms, it intelligently analyzes and enhances various aspects of the video, such as sharpness, clarity, color accuracy, and detail, resulting in a significantly improved visual experience. With this AI-based 4K Video Converter, users can elevate their video content to the stunning realm of 4K resolution while simultaneously enjoying enhanced video quality.

AVCLabs Video Enhancer AI

  • Upscale videos from SD to HD, HD to 4K.
  • Convert video to 60, 90 and even 120 FPS.
  • Sharpen faces from blurry video.
  • Colorize B&W videos to make revive again.
  • Support GPU & TensorRT acceleration.
video enhancer ai

How to Convert Videos to 4K with AVCLabs Video Enhancer AI

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

Step 1
Upload Videos

Download AVCLabs Video Enhancer AI and Launch it, then click the "Browse" button to upload videos or drag and drop them into the program.

add video
Step 2
Set 4K Output Resolution

You can activate the AI Enhancement feature and choose the output size from a range of 200% upscaled, SD, 4K, and 8K in the Video-Out section. Alternatively, you have the option to directly set the output size to 4K or any output size you prefer, which will automatically enable the AI Enhancement feature.

manually set 60fps

A much more direct way is to select Upscale to 4K under Presets section.

Step 3
Start Converting Videos to 4K

Before starting the process, you can adjust the output format and output path in the Video Settings. After all the settings are complete, you can click the Eye button to preview 30 frames or directly click the Start Processing button to convert videos to 4K.

start converting to 60fps


This article explored free 4K video converters for converting videos to a higher resolution. Any Video Converter offers comprehensive features, while a VLC media player has hidden conversion capabilities. AVCLabs Video Enhancer AI enhances video quality during conversion. Convertio is an online platform for file conversion. With these options, users can upgrade their videos to 4K resolution and enhance their visual experience.

4K Video Converter Download