Free online image upscaler
Enlarge images for cover artwork and web publishing, or resize to an exact output size. Aria Upscaler processes images on your device using your browser—no image uploads or account required.
Aria Upscaler v3.1 · An SVAATsoft application · Created by Aria for The Gemini Protocol · All image processing stays inside your browser.
How to upscale an image online
- Select your image. Choose or drag in a PNG, JPEG, WebP or browser-supported AVIF image (up to 20 MB).
- Choose the output. Use 2× enlargement, 3000 × 3000 square cover art, a 3840-pixel long edge, Flip Only or custom dimensions.
- Refine the result. For square outputs, crop, stretch or pad your image; optionally apply gentle contrast enhancement or horizontal mirroring.
- Download. Preview the result, choose PNG, JPEG or WebP, then save the finished file directly to your computer.
Preparing square cover artwork
Use the 3000 × 3000 preset for square album and cover-art assets. Choose Crop to fill for a square result without stretching, Pad with black to preserve the complete image, or Stretch only when distortion is acceptable. Review the output before publishing.
Is Aria Upscaler an AI super-resolution tool?
No. It uses browser-based Canvas interpolation with high-quality smoothing to resize existing pixels. It is designed for predictable resizing and presentation; it does not generate previously missing details or use a neural super-resolution model.
Frequently asked questions
Are my images uploaded to The Gemini Protocol?
No. Aria Upscaler reads your selected image locally and performs the conversion in your browser. The site does not need to receive, store or process the image on a server.
Does this work on Windows or macOS?
Yes, in compatible modern browsers on either platform. AVIF decoding support and performance can vary by browser and device.
How large can the images be?
The current tool accepts files up to 20 MB and limits output to 16,000 pixels per side and 100 megapixels total. Very large images may consume substantial memory, especially on mobile devices.
Can I download in WebP?
Yes. Aria Upscaler exports PNG, JPEG or WebP directly in compatible browsers. WebP offers adjustable quality and often smaller files. For existing photos, try our EXIF Viewer to inspect camera metadata without uploading the photograph.