What is an AI image upscaler?

An AI image upscaler uses artificial intelligence to increase the resolution of an image while maintaining or improving quality. Unlike simple interpolation that produces blurry results, AI upscaling predicts and generates missing detail. Textures, edges, and fine features are reconstructed at the higher resolution, without losing quality.

Is this image upscaler free?

Generation requires credits from a paid plan. Each upscale costs credits based on the image size and scale factor. Paid plans offer more credits.

What scale factors are available?

Melies supports 2x and 4x upscaling. A 1024x1024 image targets 2048x2048 at 2x or 4096x4096 at 4x. Inspect the result because generated detail and artifacts vary by source and model.

Will upscaling add artifacts or blur?

Artifacts are possible. AI models can reduce interpolation blur and reconstruct plausible texture, but difficult faces, tiny text, compression damage, and already oversharpened sources still need inspection.

Can I upscale AI-generated images?

Yes. The upscaler handles AI-generated art, photos, illustrations, and screenshots equally well. It's particularly effective for AI-generated images since it understands the patterns and styles used by models like FLUX, Stable Diffusion, and similar.

What file formats are supported?

Upload JPG, PNG, or WebP images. Output is delivered as high-quality PNG for maximum compatibility and quality preservation.

How is this different from Topaz or other upscalers?

Topaz requires desktop software and a powerful GPU. Melies runs entirely in the browser. Upload, upscale, and download in seconds. Plus, upscaled images feed directly into your creative project for video generation, character references, and timeline editing.

Can I use upscaled images commercially?

Yes. All images processed on Melies are yours to use commercially. No watermarks, no attribution required.

How do I upscale an image to 4K?

Upload your image to Melies, select the 4x scale factor, and click Upscale. The AI will increase the resolution to 4K or higher, depending on the source image size. A 1024x1024 image becomes 4096x4096 at 4x. The process takes seconds and the result downloads as a high-quality PNG.

Can I upscale images without losing quality?

Yes. AI upscaling generates new detail rather than stretching existing pixels. The result is a higher resolution image that looks naturally sharp. Melies offers three different AI models optimized for different content types, so you can pick the one that produces the best quality for your specific image.

What is the best free AI image upscaler?

Melies offers three upscaling models with no watermark on exported results. Processing requires credits from a paid plan and the current tool handles one source image at a time.

AI Agents Pricing

AI Image Upscaler and Enhancer

Increase resolution and recover useful detail in photos, AI-generated art, storyboard frames, and production assets. Choose 2x or 4x, compare three models, and inspect the result before export.

Source Image

Upload an image to upscale

Drag & drop or click to browse. JPG, PNG, WebP

Scale

Inspect recovered detail

Drag to compare the same portrait crop

4× output

Low resolution portrait before AI image upscaling — Controlled source and output pairInspect skin, eyes, and hair

Detailed portrait after 4x AI image upscaling — Controlled source and output pairInspect skin, eyes, and hair

How to upscale images with AI

Upload your image

Drop any image: photo, AI-generated art, screenshot, illustration, or storyboard frame. Supports JPG, PNG, and WebP formats. The AI handles any source resolution.

Choose upscale factor

Select 2x for double resolution or 4x for quadruple. The AI analyzes the image, predicts missing detail, and rebuilds textures, edges, and fine details at the target resolution.

Download your upscaled image

Your upscaled image is ready in seconds. Download the high-resolution result as PNG or use it directly in your creative project. Works seamlessly with storyboards, video generation, and print production.

Resolution plus restoration

Why choose this AI image upscaler

Upscaling and enhancement are one workflow here. The selected model increases resolution while reconstructing plausible texture, edges, and facial detail for the source type.

True Detail Recovery: The model does more than interpolate pixels. It predicts plausible texture and edge detail at the target resolution. Inspect small text and identity-critical features because generated detail can differ from the source.
Built for AI-Generated Art: Most upscalers are trained on photos. Melies handles AI-generated images, concept art, and illustrations without introducing the artifacts common when upscaling synthetic content.
2x and 4x Scaling: Double or quadruple your image resolution. Take a 1024px AI-generated image to 2048px or 4096px. Output is sharp enough for print, large displays, and production use.
One Image at a Time: Process and compare one source image at a time. Each completed upscale is saved to your Melies asset library for use in later shots and projects.
No Watermarks: Every upscaled image is clean. No watermarks, no branding, no restrictions. Download and use immediately in any professional context.
Pipeline Integration: Upscaled images feed directly into your Melies project. Upscale a storyboard frame, then send it to image-to-video. Enhance a character portrait, then use it as a reference. One platform, connected workflow.

AI upscaling models available on Melies

Choose from multiple AI upscaling engines, each optimized for different content types and quality levels.

Real-ESRGAN

Fast, great for most images. Industry-standard super-resolution model that excels at general-purpose upscaling with sharp, clean results.

Selected in the builder3 credits at 2×

AI image upscaling use cases

From AI art to old photos, the AI image upscaler improves any image for any use case.

01AI-Generated ArtUpscale AI-generated images from 1024px to print-ready 4K+. Preserve the style and detail of FLUX, Stable Diffusion, and Midjourney outputs while adding the resolution needed for production use.
02Low-Res PhotosIncrease the resolution of old photos and smartphone shots. The AI predicts and generates detail that wasn't in the original. Small images become print-ready at 2x or 4x their original size.
03Storyboard FramesUpscale rough storyboard sketches and concept frames for client presentations. Go from quick AI thumbnails to presentation-quality images without regenerating.
04E-commerce & ProductEnhance product photos for high-resolution listings, print catalogs, and banner ads. Get clean, sharp images at any size without reshooting.
05Print & Large FormatPrepare images for posters, gallery prints, and large-format displays. AI upscaling gives you the resolution needed for physical media without visible artifacts.
06Video ThumbnailsUpscale thumbnails, social media graphics, and cover images. Small source images become crisp, detailed assets ready for any platform or resolution.

How AI image upscaling works

Traditional image resizing uses interpolation, which averages nearby pixels to fill in gaps. The result is a larger image that looks blurry and lacks detail. AI upscaling takes a fundamentally different approach.

AI upscalers use deep neural networks trained on millions of image pairs at different resolutions. The model learns the relationship between low-resolution and high-resolution versions of the same image. When you upload a photo, the AI predicts what the missing high-resolution detail should look like and generates it.

This is called super-resolution. The AI reconstructs textures, sharpens edges, recovers facial features, and adds fine detail that never existed in the original file. The result is an image that looks naturally sharp at the higher resolution, not just stretched.

Upscale and enhance in one pass

Choose the scale and restoration model that fit the source. Compare the result at detail level before moving it into your production workflow.

AI image upscaler: frequently asked questions

Practical answers before you start creating.

More AI tools on Melies

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AI Image Generator

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AI Thumbnail Maker

Create eye-catching thumbnails for YouTube and social media.

AI Video Generator

Generate videos from images and text with AI models.

Upscale your images to 4K+

Upload any image, choose your scale factor, and enhance. Sharp, detailed results in seconds. No software to install.

Choose a plan to generate and export