AI Image Upscaler
A free AI image upscaler to upscale pictures and increase image resolution up to 4x, with an edge-aware sharpening pass to enhance photo quality — no signup, all processed right in your browser.
Drag & drop your image here
PNG, JPG, or WEBP — up to 20MB
The preview above is scaled to fit this page — the actual file is full resolution. Download to see it at true size.
How to upscale an image online free
Upload your image
Drag & drop or click Choose File. PNG, JPG, or WEBP up to 20MB.
Pick a scale
Choose Upscale 2x or Upscale 4x depending on how much detail you need.
Download
Save the upscaled PNG at full resolution — no watermark, no signup.
A free image upscaler that keeps quality intact
Whether you need to upscale a picture for print, increase photo resolution for an online store, or just enhance photo quality before sharing, this AI image upscaler handles it in seconds — no software to install, no watermark, and completely free to use as many times as you like.
Frequently asked questions
What's the maximum image size I can upload?
Up to 20MB, in PNG, JPG, or WEBP format.
Is this true AI super-resolution?
The upscaler uses Lanczos3 resampling — a proven high-quality algorithm used in professional image software — plus an edge-sharpening pass, all running locally in your browser.
Will quality degrade at 4x?
Some softening is natural at higher factors since we're enlarging existing pixels, but the sharpening pass keeps edges crisp. Starting from a higher-resolution original gives the best results.
Is my image uploaded to a server?
No. Everything happens locally in your browser — your image never leaves your device.
Can I upscale more than once?
Yes. Switching between 2x and 4x always recalculates from your original upload, so results stay consistent no matter how many times you click.
Can I upscale an image online for free?
Yes. This AI image upscaler is completely free to use, with no signup, no watermark, and no limit on how many pictures you upscale.