AI Image Upscaler
A premium, privacy-first AI image upscaler that works entirely in your browser. Upload any image and upscale it up to 8× its original resolution while preserving sharpness and detail. Choose from multiple AI modes — Balanced, High Detail, Photo, Artwork, Anime, Illustration, and Text Enhancement — each optimized for different types of content. Fine-tune with noise reduction, sharpening, face enhancement, and color enhancement controls. See real-time previews with an interactive before/after comparison slider. Export in PNG, JPEG, WEBP, or AVIF formats. All processing happens locally in your browser using advanced Canvas APIs — your images never leave your device.
AI Image Upscaler
Upscale your images up to 8× resolution with AI-powered enhancement. All processing happens in your browser — nothing is uploaded.
Your Images Never Leave Your Device
All upscaling happens in your browser using the Canvas API. Your images are never uploaded to any server.
Drop an image here or click to browse
JPG, PNG, WEBP, AVIF, BMP · Up to 100MB each
Upscale up to 8× with AI-powered enhancement
Or paste from clipboard with Ctrl+V
What this upscaler actually does — bicubic interpolation, not a neural network
Multi-pass resizing plus tuned sharpening, honestly, rather than an overstated 'AI' claim.
Some image upscalers imply they use trained neural networks to invent detail from nothing. This one doesn't, and it's worth being upfront about that: it enlarges your image with high-quality bicubic interpolation — for 4× and above, in two smaller passes rather than one big jump, which noticeably reduces the smeared look a single large interpolation pass produces — and then runs an unsharp-mask sharpening and noise-reduction pass tuned per content type. It's a genuinely well-tuned classical pipeline, not machine learning, and it can't recover detail that was never captured in the original photo.
How to use it
- Upload an image (JPG, PNG, WEBP, AVIF, or BMP).
- Pick an upscale factor: 2×, 4×, 8×, or a custom scale between 1× and 8×. Start at 2× and check the preview — quality degrades the further you push past 4×, since interpolation has less real data to work from at extreme scales.
- Pick a mode tuned for your content: Balanced for general photos, High Detail for textures and fine elements, Photo for natural images, Artwork/Anime/Illustration for non-photographic content with clean lines, or Text Enhancement for screenshots and scanned documents where readability matters more than photographic smoothness.
- Compare the before/after preview at 100% zoom before committing to a download — this is the fastest way to judge whether the chosen mode and scale actually improved the image or just enlarged its flaws.
- Export as PNG (for images with transparency) or JPEG/WEBP/AVIF for smaller file sizes.
Common use cases
- Enlarging a small product photo for a listing page that needs a larger hero image than the original supplied.
- Preparing a web-resolution image for print — going from a 72 DPI screen image toward a print-appropriate resolution, understanding this sharpens and enlarges rather than truly reconstructs missing detail.
- Cleaning up a scanned document or screenshot — Text Enhancement mode's sharpening tuning specifically favors crisp edges over smooth photographic tone.
- Enlarging old, low-resolution scanned photos — a 2× pass with noise reduction is usually the difference between "usable" and "unusable" for a photo that started too small.
Upscale Features
Everything you need for professional image upscaling
2×, 4×, 8× Upscaling
Increase resolution up to 8×
7 AI Modes
Optimized for different content types
Noise Reduction
Remove grain and artifacts
Smart Sharpening
Unsharp mask detail enhancement
Color Enhancement
Boost vibrance and saturation
Before/After Preview
Interactive comparison slider
Zoom & Pan
Inspect details at 100%
High Quality Export
PNG, JPEG, WEBP, AVIF output
100% Browser-Based
Your files never leave your device
Supported Formats
Upload and export a wide range of image formats
JPEG
Most common photo format
PNG
Lossless with transparency
WEBP
Modern web format
AVIF
Next-gen compression
BMP
Uncompressed bitmap
Frequently Asked Questions
Everything you need to know about AI image upscaling
How does the AI Image Upscaler work?
What image formats are supported?
What upscale factors are available?
What are the different AI modes?
Can I upscale multiple images at once?
What is the maximum file size?
Is my privacy protected?
How do I compare the original and upscaled results?
AI Upscaling Guide
Tips and best practices for upscaling images
What is AI Image Upscaling?
AI image upscaling uses advanced algorithms to increase image resolution while preserving or enhancing detail. Unlike traditional interpolation (which simply stretches pixels), smart upscaling analyzes the image content and applies targeted sharpening and enhancement to maintain quality at higher resolutions. The result is a larger image that looks crisp and detailed, not blurry or pixelated.
Choosing the Right AI Mode
Different content types benefit from different processing approaches. For photographs, the Photo mode applies gentle sharpening with noise reduction to maintain natural-looking results. For illustrations and anime, use modes that preserve line art smoothness. Text Enhancement mode maximizes contrast and edge definition for screenshots and documents. Experiment with different modes to find the best result for your specific image.
Understanding Upscale Factors
2× upscaling doubles both width and height (4× total pixels), 4× quadruples dimensions (16× total pixels), and 8× performs a full 64× pixel increase. Higher factors produce significantly larger output files. For web use, 2× is often sufficient. For print or detailed analysis, 4× or 8× may be appropriate. Consider your end use case when choosing the upscale factor.
Tips for Best Results
Start with a clean, high-quality source image — garbage in, garbage out. Use the Balanced mode first, then try specialized modes if needed. Adjust sharpening carefully: too much creates artifacts, too little produces soft results. Enable noise reduction for grainy or low-light photos. The interactive comparison slider is your best tool for fine-tuning settings before exporting.
Tool Overview
A closer look at AI Image Upscaler — how it works, who it's for, and where it fits in your workflow.
Small images are everywhere — old phone photos, web thumbnails, low-resolution downloads — but they don't look good when stretched. The Image Upscaler increases image resolution by 2×, 4×, or 8× while preserving sharpness and detail, using intelligent interpolation that produces significantly better results than simple nearest-neighbor or bilinear scaling.
Multiple AI modes optimize for different content types: one mode for photographs (preserving texture and gradient smoothness), another for illustrations and graphics (keeping edges crisp), and a sharpening mode for scanned documents and text. Fine-tuning controls let you adjust noise reduction, sharpening strength, and color enhancement. The before/after comparison slider makes the improvement obvious — zoom in to see detail that wasn't visible in the original. The result is a high-resolution image suitable for print, large displays, or further editing.
Upscaling uses the Canvas API with advanced interpolation algorithms that run entirely in your browser. Your original image and the upscaled result never leave your device. There are no usage limits, no account required, and the tool works offline after the initial page load.
Key Features
Everything you get with this tool, at a glance.
2×, 4× & 8× Upscaling
Increase resolution by 2×, 4×, or 8× while preserving detail.
Content-Aware Modes
Optimized algorithms for photos, illustrations, and text/documents.
Fine-Tuning Controls
Noise reduction, sharpening strength, and color enhancement adjustments.
Before/After Comparison
Interactive slider shows the improvement at full zoom.
High-Resolution Export
Download as JPG, PNG, or WEBP at the full upscaled resolution.
All Local Processing
Advanced interpolation runs in your browser — no uploads, no limits.
How to Use AI Image Upscaler
Get from zero to done in four quick steps — no account, no learning curve.
Upload your image
Select a low-resolution image you want to upscale.
Choose the scale factor
Pick 2×, 4×, or 8× depending on how large you need the output.
Select the AI mode
Choose the mode optimized for your content type — photo, illustration, or text.
Fine-tune and download
Adjust noise reduction and sharpening, then download the high-resolution result.
Practical Examples
Real input and output pairs so you know exactly what to expect.
2× upscale a 480p photo
Input
Original: 640×480 photo · 2× mode
Output
Upscaled: 1280×960 — sharp enough for web use
4× upscale a thumbnail
Input
Original: 200×150 thumbnail · 4× mode
Output
Upscaled: 800×600 — usable for social media posts
8× upscale for print
Input
Original: 300×400 icon · 8× mode
Output
Upscaled: 2400×3200 — suitable for small print applications
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