Video Editing

I Tested 5 Free AI Video Enhancers and Here's the Result

Author: Eric Tang

Mar 28, 2025 · 3 minutes read

I Tested 5 Free AI Video Enhancers and Here's the Result

Wondering how to transform your low-resolution videos into stunning 4K quality for free?

Look no further than this free AI video resolution enhancer.

With cutting-edge AI technology, you can easily upscale your videos to 4K, ensuring crystal-clear visuals and an enhanced viewing experience.

In this article, I will introduce how to use this convenient AI video enhancer app to upscale a video to HD for free.

5 Best Free AI Video Enhancer Apps & Online Tools in 2025

Explore the top 5 free AI video enhancer apps and online tools available in 2025, and learn how they can transform your video editing experience with advanced AI technology.

1. YouCam Enhance: Best Tool for 4K Resolution Enhancement

Available: iOS (iPhone)/ Online Web

YouCam Enhance's AI Video Enhancer specializes in enhancing video resolution and unblurring facial details, both of which are vital for professional video and film making.

Rather than just sharpening details, its engine also enhances facial details to make them appear more natural and clear.

Simply upload a video to the website, and the AI will automatically 2X its resolution (up to 4K) and restore facial details instantly.

Enhance Video Resolution Up to 4K Online For Free With the Best AI Video Enhancer in 2025

YouCam Enhance stands out as one of the highest-quality photo and video enhancer apps for iPhone, free from watermarks.

Featuring its All-in-One AI Video Enhancement, it automatically elevates any old or low-resolution video, such as 360p, 480p, 720p, and 1080p, to higher quality by enhancing its sharpness and facial details using AI.

With this app, all you need to do is 'Upload a low-resolution video' and let the AI instantly enhance your video to 2X resolution (up to 4K) without any manual editing or professional software.

How to Enhance a Low-Resolution Video to 4K Online

Learn how to elevate your video resolution effortlessly with the best AI video quality enhancer through this step-by-step tutorial.

Step 1. Open the Best Free 4K AI Video Enhancer

Begin by downloading the free AI video enhancer app- YouCam Enhance from the App Store, then open it on your device. Once launched, you'll find yourself on the main interface ready to explore its features.

For PC and Android users, you can directly access the YouCam Online AI Video Enhancer to improve your video quality online without downloading any additional software or apps.

Step 2. Go to “Video Enhance” and Upload Your Video

Navigate to the "Video Enhance" option within the app's menu, where you'll be prompted to upload the video file you want to enhance.

Simply tap on the upload button and select the video from your device's gallery or file manager.

For the best and most natural results, consider uploading a video with a resolution higher than 720p.

Step 3. Wait for the AI to Upscale Your Video to 4K for Free

After you upload your video, the app will begin enhancing it.

This includes 2X video upscaling and automatic adjustments to sharpness and facial details, thereby optimizing the video quality using AI.

It may take a few minutes depending on the video length and resolution.

Once upscaled, your video will be at twice the original resolution.

For instance, if your video is in 1080p, the app will upscale it to 2160p; similarly, if it's already in 2160p, the AI will enhance it to 4K.

Step 4. Save Your Enhanced Video

Once the enhancement process is complete, YouCam Enhance will prompt you to save your newly enhanced video.

Tool Review of YouCam Enhance's AI Video Enhancer

YouCam Enhance's AI Video Enhancer truly delivers on its promise of boosting video quality.

Its AI upscaling feature effectively sharpened my footage to a crisp 4K, and the deblurring and noise reduction features made a noticeable difference in clarity, which impressed me.

Besides, it also did a great job of refining details and even subtly enhancing facial features, making my videos look more polished and professional with minimal effort.

It's definitely a user-friendly tool that can quickly elevate the quality of various videos, whether for social media content or for breathing new life into older recordings.

2. YouCam Video: Best App for HD Video Enhancing & Editing

If you’re in search of advanced video-enhancing features, the YouCam Video app is a specialized tool for video editing and enhancement.

It offers features such as ‘HD Video Enhance’, ‘AI Color Correction’, and ‘Video Stabilize’ to improve video quality.

For more precise control over video quality, the app also allows you to fine-tune elements like sharpness, saturation, contrast, and exposure.

How to Enhance a Video Using YouCam Video

Import your video : Open YouCam Video and import the video you wish to enhance into the editing interface.
Select Enhancement Tools : Navigate to the section within the app that offers video enhancement features and options.
Apply Desired Adjustments : Choose and apply specific enhancements like beauty filters, color adjustments, or visual effects according to your preferences.
Export Enhanced Video: Once satisfied with the results, export the improved video in your preferred format and resolution.

Tool Review of YouCam Video's AI Video Enhancer

I've been using YouCam Video for a while now, and I have to say, it's a game-changer for video editing!

The AI Video Enhance feature is fantastic for sharpening details and boosting resolution, making my videos look super crisp. The AI Color Correction is a lifesaver, effortlessly balancing colors to make everything pop.

Plus, the AI Video Stabilizer smooths out any shaky footage, giving my videos a professional touch. Highly recommend it for anyone looking to up their video quality game!

3. Vmake: Best Online Tool to Convert Low Quality Video to High Res

Vmake AI Video Enhancer

Vmake is the best online tool to convert low-quality videos to high resolution (4K, 30FPS).

It uses AI technology to enhance the quality of your videos, making them clearer and more detailed.

It’s a great tool for those who want to transform their low-quality videos into high-quality content.

How to Convert Low Quality Video to High Res Using Vmake

Upload Your Video : Open the Vmake app and upload the low-quality video you intend to convert to high resolution.
Select AI Upscaling : Choose the AI upscaling option within Vmake's features, which utilizes artificial intelligence to enhance video detail.
Initiate Conversion and Download : Start the conversion process and, upon completion, download the significantly improved, higher-resolution video.

Tool Review of Vmake

Vmake definitely stands out as a user-friendly AI video editing tool specifically designed to simplify content creation for everyone.

Its accessibility and speed almost handling everyday video editing needs, leading to a much smoother and faster workflow for users. While it focuses on these strengths, users seeking highly specialized customization might explore professional-grade alternatives.

4. CapCut: Best Online Tool to Sharpen & Unblur Videos

CapCut AI Video Upscaler

CapCut is the best online tool to sharpen and unblur videos.

It uses advanced algorithms to enhance the clarity of your videos, making blurry videos clear and sharp.

It’s a great tool for those who want to improve the quality of their videos without any hassle.

How to Sharpen & Unblur Videos Using CapCut

Import Your Video: Go to the CapCut online platform and upload the blurry video you want to sharpen and unblur into your project.
Upscale your video: Simply click the 'Upscale' button. Your low-resolution video will be automatically upscaled. For more editing options, click 'Edit more' in the top right to access the multi-track video editor and explore creative features.
Export Your Enhanced Video: Once you're happy with the sharpness, click the "Export"button to save your video in your desired resolution and format.

Tool Review of CapCut

CapCut's Sharpen and Unblur tools are surprisingly effective for a free mobile app. I've used them on some slightly fuzzy footage and was impressed by how much clarity they could bring back without making it look artificial.

It's not magic, so heavily blurred videos might not become perfect, but for minor issues, it's a really handy feature to quickly improve your videos on the go.

5. Cutout Pro: Best Online Tool to Upscale Videos With AI

Cutout Pro AI HD Video Upscaler

Cutout Pro is the best online tool to upscale videos with AI to 2K 30FPS.

It uses AI technology to enhance the resolution of your videos, making them clearer and more detailed.

It’s a great tool for those who want to transform their standard videos into high-quality content.

How to Upscale Videos With AI Using Cutout Pro

Upload Your Video: Go to the Cutout Pro AI Video Upscale page and upload the low-resolution video you want to enhance.
Select Upscale and Enhancement Options: Choose your desired upscaling level(e.g., 2x, 4x) and explore other AI-powered enhancement features like noise reduction and detail restoration.
Start AI Upscaling: Click the button to initiate the AI upscaling process and allow Cutout Pro to improve your video quality.
Download Your Upscaled Video: Once the process is complete, preview the enhanced video and download the high-resolution version.

Tool Review of Cutout Pro

CutOut Pro's Upscale tool is surprisingly effective at boosting image resolution without turning everything into a blurry mess, which is a common issue with other similar tools.

While it's not perfect and sometimes the results can look a tad artificial upon close inspection, it definitely makes lower-resolution images much more usable for various projects.

For a quick and generally good quality upscale, it's a handy tool to have in your arsenal.

Start Enhancing Low-Resolution Video to 4K With the Best AI Video Upscaler in 2025

Are you ready to witness your low-resolution videos come to life in stunning 4K clarity?

With the best AI video upscaler of 2025, YouCam Enhance, the future of video enhancement is at your fingertips.

Don't settle for less when you can experience the brilliance of high-definition visuals with just a few clicks.

Video Resolution Enhancer FAQ

Is there any free AI video enhancer?

YouCam Enhance stands out as one of the best AI video quality enhancer apps of 2025, renowned for its '4K Video Upscaling' and 'All-in-One AI Enhancement' features.

Its AI automatically enhances sharpness, face details, and slightly reduces noise, empowering users to elevate their videos to HD quality without requiring professional video editing skills or software.

How can I upscale a video with AI for free?

You can upscale a video with AI for free using the YouCam Enhance app, a powerful tool that offers up to 2X resolution enhancement, allowing you to upscale videos to stunning 4K quality effortlessly.

Simply download the app, upload your video, and let its AI technology work its magic for high-quality results without any cost.

What is the best free video enhancer?

In 2025, the best free video enhancer is YouCam Enhance, renowned for its advanced AI technology that enhances sharpness and reduces noise, all in one seamless process.

With YouCam Enhance, users can effortlessly elevate their video quality to HD or even 4K resolution without any cost.

Can you upscale 640p video to 4k?

Yes, you can upscale a 640p video to 4K using YouCam Enhance’s AI Video Enhancer by upscaling it multiple times.

However, it's better to start with a higher-resolution video (between 720p and 1920p) to avoid unnatural results, as 640p is too blurry for a smooth upscale to 4K.

What is the best video enhancer website?

YouCam Online AI Video Enhancer is among the top free online video upscaling websites. It provides an all-in-one AI tool that automatically enhances video resolution (up to 4K) without requiring manual editing.

Whether you’re a beginner or a professional, it’s an excellent choice for instantly enhancing low-quality videos.

How do I increase the resolution of a video?

You can enhance video resolution by using YouCam Enhance’s AI Video Enhancer, available on iOS and online. This tool doubles the video resolution, up to 4K.

By simply uploading your video, its AI automatically improves video resolution without requiring any video editing skills.

Is there an AI video upscaler?

An AI video upscaler, such as YouCam AI Video Enhancer, utilizes AI algorithms to upscale the resolution and quality of videos. You can upload your video, and the AI will automatically apply enhancements like adjusting sharpness and restoring face details, resulting in improved video quality, including 4K resolution.

Can I upscale a video to 4K on my iPhone?

Yes, you can upscale a video to 4K on your iPhone by downloading the AI video enhancer YouCam Enhance. It offers a "Video Enhance" feature for iPhone users to upscale videos up to 4K for free.