Best Video Upscaler GitHub Projects in 2025

With the rise of open-source platforms like GitHub, numerous upscaling tools have emerged, offering a range of features and capabilities. In this guide, we'll explore the best six video upscaling GitHub tools available on GitHub and delve into the best noteworthy alternative - HitPaw VikPea.

Part 1. What is Video Upscaler GitHub

Video upscaling refers to the process of enhancing a video's resolution—typically from SD or HD to Full HD, 4K, or even 8K—using algorithms or AI-based technology. On GitHub, developers share open-source video enhancer GitHub projects that empower users to build and customize their own AI video upscalers.

These tools are often flexible, modifiable, and free to use, making them popular among tech-savvy users. With growing demand for 4K video upscaler GitHub solutions, more contributors are leveraging deep learning models to restore details and sharpen visuals. If you're looking to upscale video GitHub-style, here are the best tools available.

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Part 2. Best 6 Video Upscale AI GitHub Tools

Tips: If you want to upscale video quality with easier interface and fast speed, just try the best AI video upscaling tool now!

1. QualityScaler

Quality Scaler is a cutting-edge video upscaler on GitHub designed to upscale images and videos using the power of BSRGAN Artificial Intelligence. This tool not only enhances visuals but also reduces noise, ensuring users get the best quality possible.

Features:

User-friendly GUI.
Upscales both images and videos.
Overcomes GPU VRAM limitations with automatic image tiling and merging.
Option to resize before upscaling.
Multi-GPU support.
Supports a wide range of image and video formats.

System Requirements:

Operating System: Windows 11 or Windows 10.
RAM: 8GB or more.
GPU: DirectX12 compatible with 4GB VRAM or more.

Programming Language:
Quality Scaler is developed entirely in Python.

2. Upscaler

Upscaler is a project that consolidates various open-source AI tools for upscaling images and videos. Designed to be CLI-friendly, it offers a solution for those seeking a low-cost, local AI upscaling tool without the constraints of a GUI.

Features:

Consolidation of multiple AI upscaling tools.
CLI-friendly interface.
Suitable for large video files with a streaming algorithm approach.
Designed for both image and video upscaling without GUI overheads.

System Requirements:

Hardware: Compatible GPU recommended for faster upscaling.
OS: Tested on debian-amd64 (linux) and windows-amd64 (windows).
Dependencies: ffmpeg and ffprobe for video processing.

Programming Language:
The project uses Shell (58.4%), PowerShell (24.6%), and Batchfile (17.0%).

3. Waifu2x-GUI

Waifu2x-GUI is a dedicated application tailored for upscaling anime-styled images, gifs, and videos. It leverages the power of waifu2x and Real-ESRGAN Anime to deliver enhanced visuals. The application is designed for simplicity, but advanced settings are accessible for those who need them.

Features:

Upscale and denoise images (png, jpg, webp, etc.).
Enhance animated images (gif, animated webp).
Improve video quality (mp4, webm, ogv, etc.).
Apply effects like speed or reverse.
Customize settings: noise, scale, mode, framerate, etc.
Concurrent upscaling for multiple images or frames.
Switch between waifu2x and Real-ESRGAN Anime upscalers.

System Requirements:

Installation: Download the installer from the releases tab.
Note: Installation under C:/Program Files may require administrative rights.
MacOS: users need to compile waifu2x-converter-cpp from source.

Programming Language:
The core of Waifu2x-GUI is developed using TypeScript (82.2%), with other components in Less, JavaScript, and HTML.

4. SimpleMediaUpscalerLite

SimpleMediaUpscalerLite, abbreviated as smuL, is an Electron App combined with a Python CLI designed to upscale images and videos. It harnesses the capabilities of multiple upscaling engines, offering users a versatile tool for enhancing their media.

Features:

Upscale individual files or entire folders using various engines.
GUI file manager for input & output file selection.
Set custom scaling multipliers.
Supports images (.png, .jpg, .jpeg) and videos (.mp4, .mkv).
Multiple upscaling algorithms to choose from.
Plugin support to expand upscaling engine options.

System Requirements:

Officially supported on Windows 10, 11.
Unofficial support for Windows XP, Vista, 7, 8 via Python.
Linux distros with wine installed.

Programming Language:
The application is primarily developed in Python (57.1%), with components in Vue (24.8%), JavaScript (12.9%), Shell (4.4%), and HTML (0.8%).

5. Video2x

Video2X is an advanced software designed for upscaling videos, GIFs, and images without compromising on quality. It integrates state-of-the-art algorithms, including waifu2x, Anime4K, SRMD, and RealSR, to provide users with superior upscaling results.

Features:

Upscales video/GIF/image with lossless quality.
Supports multiple renowned upscaling algorithms.
Offers both GUI and CLI interfaces for user convenience.
Capable of upscaling demos like Spirited Away's movie trailer and various GIFs.
Provides a standard test clip for performance benchmarks.

System Requirements:

While specific system requirements aren't explicitly mentioned, it's implied that a compatible GPU and necessary dependencies like FFmpeg are required for optimal performance.

Programming Language:
Video2X is predominantly developed in Python, accounting for 94.4% of the codebase, with other components in Dockerfile and Shell.

6. RealScaler

RealScaler is a Windows-based application that leverages the capabilities of Real-ESRGAN artificial intelligence to enhance, enlarge, and reduce noise in photographs and videos. It's a powerful tool that brings out the best in your media, ensuring clarity and detail.

Features:

User-friendly GUI for easy operation.
Capable of upscaling both images and videos.v
Features automatic image tiling and merging to bypass GPU VRAM limitations.
Provides an option to resize media before upscaling.
Multi-GPU support for enhanced performance.Multi-GPU support for enhanced performance.
Supports a variety of image formats (png, jpeg, bmp, webp, tif) and video formats (mp4, wemb, gif, mkv, flv, avi, mov, qt).

System Requirements:

Operating Systems: Windows 11 or Windows 10.
Minimum RAM: 8GB.
GPU: DirectX12 compatible with at least 4GB VRAM.

Programming Language:
RealScaler is entirely developed in Python, encompassing both the backend and frontend functionalities.

Part 3. Best AI Alternative to Video Upscaler GitHub

While GitHub offers some powerful video enhancer and AI video upscaler tools, most require advanced technical skills: coding knowledge, Python environments, model configuration, and powerful GPUs. For users who want the same AI-powered video upscaling results without the complexity, HitPaw VikPea is the perfect solution.

HitPaw VikPea is designed for anyone—from beginners to video professionals—who wants to upscale videos with AI in one click. No coding, no installations of third-party libraries, and no manual frame extraction or stitching. It takes the power of GitHub AI video upscalers, wraps it in a simple interface, and delivers stunning 2K/4K/8K results in a fraction of the time.

HitPaw VikPea Amidst GitHub Alternatives

Upscale videos to 8K with exceptional detail and clarity.
Mature AI designed for upscaling anime and human face videos.
Superior noise reduction for crystal-clear videos.
Instantly see the upscaled result before export.
Intuitive design for easy video enhancement.
Watermark-free previews, batch processing, and GPU acceleration for quick, quality results.

HitPaw VikPea vs. GitHub Tools

Feature	HitPaw VikPea	GitHub Tools
Coding Required
Installation Complexity	Low (Download & Install)	High (Python, CUDA, Models)
User Interface	Clean, beginner-friendly UI	Mostly CLI
Processing Speed	Optimized with GPU & Cloud Acceleration	Depends on setup
Format Support	Built-in format support	Manual via ffmpeg
Ideal For	Everyone, including beginners	Developers, tech users

How to Use HitPaw VikPea

Step 1. Download and install this program to computer. Launch it and choose Video Enhancer module from the side menu.Import your low-resolution video to the program.
Step 2. As your needs, choose the General Restoration Model, Portrait Model or Animation and others. Each one will upscale your video from different aspects.
Step 3. After making your selection, hit 'Preview' to instantly see a side-by-side before-and-after comparison.
Step 4.Once satisfied, 'Export' the masterpiece you made with AI upscale video GitHub alternative.

Part 4. FAQs of Video Upscaler GitHub

Q1. How does video2x work?

A1. Unlike traditional methods, Video 2x uses deep learning techniques to analyze and extrapolate missing details in low-resolution videos, resulting in improved visual fidelity. It utilizes state-of-the-art AI algorithms, such as convolutional neural networks (CNNs), which are trained on vast amounts of high-resolution video data. During the upscaling process, Video 2x analyzes each frame's content and generates high-resolution versions based on its learned knowledge.

Q2. How does waifu2x work?

A2. Waifu2x is an image scaling and noise reduction program specifically designed for anime-style art and other types of photos. The tool was inspired by the Super-Resolution Convolutional Neural Network (SRCNN). It primarily uses Nvidia CUDA for computing, but there are alternative implementations that support OpenCL and Vulkan. The name "waifu2x" combines the anime slang "waifu," meaning a female character one is attracted to, with "2x," indicating two-times magnification.

Q3. What is TTA upscale?

A3. TTA, or test-time augmentation, mode averages the upscaling results of eight augmented inputs. This mode can reduce several types of artifacts, enhancing the final image quality. However, it's worth noting that TTA mode is approximately 8 times slower than the non-TTA mode.

Bottom Line

Open-source video upscaler GitHub tools offer amazing potential for developers and enthusiasts. From Waifu2x-GUI to RealScaler, there's no shortage of innovation on GitHub. However, if you prefer a more accessible and powerful AI solution, HitPaw VikPea is the best non-GitHub alternative for upscaling videos to 2K, 4K, or even 8K without hassle. Whether you're improving old footage or enhancing modern clips, choosing the right GitHub video upscaler or its alternative makes all the difference.

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