How to upscale an image in your browser
Give a small image more pixels, and learn which details to trust.
A small image can look soft when placed in a larger presentation or document. AI upscaling predicts additional pixels from the original. TinyModel uses a small super-resolution model locally, so the image stays on your device.
What 2× means
A 2× enlargement doubles both width and height. A 600 × 400 image becomes 1200 × 800, which contains four times as many pixels. The output dimensions are exact; the newly predicted details are not necessarily an exact reconstruction of the original scene.
Use upscaling for general visual improvement. Keep the original for small print, legal evidence, scientific measurements, and any task where an invented detail could change meaning.
Enlarge your image
- Open Image Upscaler.
- Choose a JPG, PNG, or WebP within the displayed limits.
- Select Upscale 2× and keep the tab open.
- Compare the original and result, paying attention to text and repeating patterns.
- Download the PNG.
Transparent areas are flattened onto white for this first version. If retaining transparency is essential, keep your original alpha channel in a separate editing workflow.
Why the tool works in tiles
An enlargement model uses working memory as well as memory for the final image. Processing a large image all at once can exceed browser limits. TinyModel processes overlapping tiles and joins them to produce the final image.
Overlapping edges help avoid visible boundaries. Nevertheless, examine smooth gradients, repeating patterns, and fine lines for seams. A smaller source image is useful when diagnosing a device limitation.
Review at a useful size
Compare both versions at the size where you will actually use the image. A larger file can look impressive at first but produce too much sharpening or texture. Skin, lettering, fabric, and straight architectural edges are worth checking closely.
Avoid repeatedly upscaling an already upscaled result. Each run works from the previous output and can amplify invented textures. Start from the best original you have.
Performance and privacy
The first run loads model and runtime assets. Subsequent runs can reuse cached assets when browser storage is available. Processing time depends on image dimensions and device speed. Cancel stops the local worker; it does not send the job elsewhere.
Files are not stored as a personal gallery. Download the result before leaving the page, and retain the original alongside it.