Image Upscaler — Free Online, No Login
Increase image resolution and detail. Runs directly in your browser as part of ImageBoostAI's free toolset — no signup, no watermark.
⚡ Open Image Upscaler Editor →How Image Upscaler works
- Click "Open Image Upscaler Editor" above.
- Upload a photo (JPG, PNG, WEBP or HEIC — up to 25MB / 40MP).
- Click Apply and preview the result instantly.
- Download the result — nothing is stored on our servers.
⚙️ Uses real, deterministic image-processing (not a trained AI model) — genuine and reproducible results, computed live from your actual photo.
Frequently asked questions
Is Image Upscaler free to use?
Yes. Image Upscaler is free, with no login and no watermark on the result.
Where does my photo get processed?
Processing happens locally in your browser tab. Files are not uploaded to a server for this tool.
How does Image Upscaler actually work?
This tool applies real, deterministic image-processing (histogram auto-levels, unsharp masking, color-range/brush-guided blending, etc.) entirely in your browser. It's not a trained deep-learning model, but the transformation is genuine and reproducible — not a static demo.
What file types and sizes are supported?
JPG, PNG, WEBP and HEIC (auto-converted). Max file size 25MB, max resolution 40 megapixels. GIFs are accepted but only the first frame is edited.
Category: Restore & Fix · Part of ImageBoostAI's 35+ free AI photo tools.