高画質化AI

kougashitsuka.com
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Upscale low-resolution photos and illustrations with AI. No install required. Compare before and after, then download clear 2x or 4x images.

Description

高画質化AI (Kougashitsuka AI) is a browser-based AI image upscaler focused on making blurry or low-resolution photos and illustrations clear and crisp. It uses super-resolution processing to enhance details, allowing users to keep original dimensions or upscale images by 2x or 4x. Targeting photographers, e-commerce sellers, creators, and everyday users, the platform requires no software installation and offers a simple three-step workflow: upload, choose mode and scale, then compare and download. Content includes quality lab comparisons, practical blog guides, and transparent privacy practices. The user experience is beginner-friendly, with clear processing limits and point-based pricing. Technical features include support for JPG/PNG/WebP, TLS-encrypted uploads, private storage, and no use of images for AI training or advertising.

Installation

Not sure where to start — ask an assistant to walk you through:

Features

🖼️ AI Image Upscaling
Uses AI super-resolution to sharpen low-resolution photos and illustrations while preserving original size or enlarging them up to 4x. Offers Standard, Pro, and AI Strong modes so users can balance quality and point cost
🔍 Before/After Quality Lab
Includes an interactive comparison lab where users can view original and processed images side by side with a slider. The tool also shows an output preview and zoomed detail view before download, helping users confirm wh
🔒 Privacy-First Enhancement
Emphasizes secure and private handling of uploaded images. Files are not sent to servers until processing starts, communications use TLS encryption, storage is private, and images are never used for ads or AI training. T

Use cases

Upscale profile photos for social media.
Enlarge blurry images for presentations.
Restore low-res art for prints.
Upscale product photos for online shops.
Enhance anime pictures before sharing.
Create sharp images for blog visuals.

FAQ

The service currently offers free starter points for new accounts, and processing consumes points based on the selected mode. Free quota details and available processing conditions are shown before processing begins.

AI image upscaling is a process that analyzes low-resolution images and reconstructs smoother edges and clearer details. Unlike simple resizing, it can increase pixel count while improving perceived sharpness, supporting original-size correction as well as 2x and 4x enlargement.

Yes. You can correct an image at its original size, or enlarge it by 2x or 4x if the source image fits within the platform's dimension limits. Unavailable scales are not selectable on the interface.

Mild blur caused by low resolution or compression can often be improved. However, heavily blurred, severely shaken, or badly out-of-focus images with missing information cannot be accurately restored, so results depend on the original image quality.

The platform currently accepts JPG, PNG, and WebP static images up to 10MB, with width and height limits around 1440px short edge and 2160px long edge depending on upload settings. Animated images are not supported.

It can enlarge and enhance portrait photos, but it is not a dedicated face restoration feature. If facial details are not recognizable in the original image, the AI cannot accurately recreate them.

Processing images are stored privately only for the time needed to complete enhancement. According to the privacy policy, images are not used for advertising or AI training, and detailed retention periods can be confirmed on the privacy page.

Using this tool does not change ownership or copyright of the original image. You may use enhanced images commercially only if you own the rights or have permission from the copyright holder.

No installation is required. Everything happens in the browser: you upload an image, choose processing settings, and download the result, making the tool available on desktop and mobile devices.

There are three modes: Standard for slight blur, Pro for broad quality improvement with retained detail and texture, and AI Strong for powerful restoration of very low-quality images. Each mode consumes a different number of points.

Specs

Type Tool
SectionImage Editing
Pricing has a free tier
Platform Web only
Systems web
Hostingcloud
Installsaas
Site languageen
Launched2026-08-04

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