Blurry, pixelated images just don’t cut it anymore. Whether you’re printing a poster, enhancing a photo for your portfolio, or trying to breathe new life into old graphics, you need an AI upscaler that delivers high-resolution results without sacrificing quality.
But here’s the catch: most “free” tools slap on watermarks, impose size restrictions, or limit how many images you can upscale per day—unless you open your wallet. If you’re tired of those traps, this article is for you.
Designing a custom Displate? To ensure crisp results, your image should be at least 2900×4060 pixels. While our uploader doesn’t currently upscale images, the tools below can help you get there—without paying a cent.
Below, we’ve rounded up two of the most capable free AI image upscalers that:
- Add no watermarks
- Offer generous or unlimited use with clearly stated limits
- Work smoothly on both Mac and Windows (via browser or desktop app)
Let’s dive in.
1. Image Upscaling
A fast, web-based AI upscaler that provides high-resolution outputs with no watermark—ideal for quick, quality-enhancing tasks.
Key Features:
- Upscales images up to 4× their original size
- Handles input images up to approximately 4096×4096 px (~16 MP)
- No watermark, no sign-up, and no paywall
- Fully web-based – works on Mac, Windows, and Linux browsers
Limitations:
- A daily free quota applies (undisclosed cap), so usage is not fully unlimited
2. ImgUpscaler
A powerful web-based AI upscaler designed for high-resolution image enlargement without watermarks or hidden fees.
Key Features:
- Supports upscaling up to 4×, with output resolutions up to 16K
- No watermark in the free tier
- Batch processing allowed for multiple images at once
- Fully web-based, compatible with Mac and Windows browsers
Limitations:
- Free tier has generous usage but may have daily limits (not explicitly stated).
Over to You!
Whether you’re restoring old photos, prepping designs for print, or giving your digital art a professional edge, the tools above do the job without watermarks, hidden limits, or fees.
Try them out, experiment with your images, and find the one that fits your creative flow. Your next high-res masterpiece is just a few clicks away!
