Upscale photos 2x or 4x in your browser
Upscale any image with AI. It's free, runs in your browser, no upload, no signup, no watermark.
Drag & drop your file here
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Max 20.0 MB
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Upscale images with AI without uploading, signing up, or watermarks
FreeUpscaler is a free AI image upscaler that runs entirely in your browser. Drop in a photo, pick 2x or 4x, and get a sharper, higher-resolution version back in seconds. No account, no upload, no watermark on the output. Ever. Everything happens on your device's GPU, so your images stay private and you can upscale as many as you want.
AI upscaling is not the same as a normal resize. Stretching an image with a regular resize just makes the existing pixels bigger, and the result looks soft and blurry. An AI upscaler predicts what the new pixels should look like, using a neural network trained on millions of image pairs. The model has learned how edges, textures, and natural patterns behave at higher resolution, so it generates plausible detail where there wasn't any.
How it works
Three steps. Nothing uploaded.
Drop an image, let AI enhance it on your device, download the result.
Drop your image
Drag and drop a JPG, PNG, or WebP file. It loads into your browser's memory. Nothing gets uploaded.
AI enhances it on your device
A neural network runs on your GPU, predicting sharp new pixels from the patterns in your original.
Download the PNG
You get a clean, lossless PNG at the new resolution. No watermark, no account, no expiring link.
What you can upscale
One tool, every kind of image
Old photos & scans
Sharpen decades-old prints scanned on a flatbed. Recover detail that compression had flattened, good enough to print at 8×10 or larger.
Product photos
Take 500 to 800 px supplier images up to 2000 px+ for Shopify, Amazon, and Etsy listings without re-shooting.
Screenshots & UI exports
Clean up low-resolution screen captures for blog posts, documentation, and social media. Crisp edges instead of soft ones.
AI-generated images
Push Midjourney, Stable Diffusion, DALL·E, and Nano Banana output from 1024×1024 to 4K or 6K without burning paid upscale credits on the generator.
Social media images
Recover detail in heavily compressed Instagram, Twitter, or Facebook uploads for reposting, printing, or keeping for archive.
Portraits & faces
Sharpen blurry phone captures. Recover definition around eyes, hair, and skin. Often the difference between a keeper and a delete.
Why use a free AI image upscaler that runs in your browser?
Every other free image upscaler has a catch. Some limit you to a handful of credits per month. Others want a signup and stick a watermark on the free tier. Paid desktop tools start at $99. And most of them want your photos uploaded to their servers before they'll do anything.
FreeUpscaler takes a different approach. The entire AI model runs on your device through WebGPU, which means:
- Your files stay private. They never touch our servers or anyone else's. You can verify this in your browser's network tab. No outbound request carries your image.
- No usage limits. You aren't sharing a cloud GPU with thousands of other users, so there's no queue, no throttling, and no monthly credit cap.
- No watermark, no signup. No account to create, no card to enter, no email list to land on.
- Offline after the first load. Once the AI is cached, you can keep upscaling without internet.
Supported formats and file sizes
| Input formats | JPG, PNG, WebP |
| Maximum file size | 20 MB |
| Output format | PNG (lossless) |
| Scale options | 2x or 4x |
| Max output | Up to 16K from a 4K source |
Free AI image upscaler compared
| FreeUpscaler | Upscale.media | Canva | Topaz Gigapixel | |
|---|---|---|---|---|
| Free to use | Yes, unlimited | Free credits, then paid | Free, with signup | Paid ($99+) |
| Signup required | No | Yes, past a few | Yes | Yes (license) |
| Watermark | No | No | No on paid | No |
| Runs in browser | Yes | Yes | Yes | No (desktop) |
| Files uploaded to server | No | Yes | Yes | No |
| Works offline | Yes, after first load | No | No | Yes |
| 4x upscale | Yes | Yes | 2x only | Up to 6x |
FAQ
Frequently Asked Questions
Also upscaling video?
The free AI video upscaler runs the same way. 2x or 4x, entirely in your browser.
Try the free AI video upscaler