Image Upscaler
Enlarge any image 2×, 4× or 8× — or to an exact width — with smooth or pixel-perfect resampling and an optional sharpen pass.
Drag & drop an image here, or click to browse
No uploads. Your files stay on your device.
Smooth upscaling softens edges — add a little sharpening to bring detail back.
This is a classic resampling upscaler (Canvas API), not an AI model — it enlarges and smooths what is already in the file, it cannot invent detail that was never captured.
How it works
Drop an image and pick a scale — 2×, 4×, 8× or an exact target width — and the enlarged version appears straight away. Smooth mode enlarges in repeated doubling steps with high-quality bicubic-style interpolation, which keeps photos and artwork far cleaner than a single big jump. Pixel-perfect mode turns interpolation off completely, so each source pixel becomes a crisp square block — exactly what you want for pixel art, sprites and hard-edged logos.
Enlarging always softens edges, so the sharpen slider applies an unsharp mask to the result to bring the detail back; 20–40% suits most photos. Everything — decoding, resampling, sharpening and re-encoding to PNG, JPEG or WebP — happens in your browser with the Canvas API, so your picture is never uploaded to a server. Note that no resampler can add detail that was not in the original: an upscale makes an image bigger and smoother, not sharper than the source.
Frequently asked questions
How do I upscale an image without losing quality?
Drop the image here, pick a scale (2x, 4x, 8x or an exact target width) and keep the Smooth method: it enlarges in repeated doubling steps with high-quality interpolation, which stays much cleaner than one big jump. Add 20-40% sharpening to restore the edge definition that any enlargement softens, then download as PNG for a lossless result. Quality is best when the scale is modest - a 2x upscale of a decent photo looks great, an 8x upscale of a thumbnail will always look soft.
Can this tool add detail that is not in the original photo?
No, and no honest tool can promise that. This is a classic resampler built on the browser Canvas API: it interpolates between the pixels you already have, so it makes an image bigger and smoother but cannot recover detail that was never captured. AI upscalers hallucinate plausible detail instead, which looks sharper but invents texture, faces and text that were not there - a real problem for documents, product shots and evidence. If you need a faithful enlargement, resampling is the safer choice.
Which method should I use for pixel art or a logo?
Choose Pixel-perfect. It turns interpolation off entirely (nearest-neighbour), so every source pixel becomes a crisp square block - exactly what sprites, icons, retro art and hard-edged logos need. Use whole-number scales like 2x, 4x or 8x so the blocks stay perfectly square, and leave sharpening off since there are no soft edges to recover. Smooth mode would blur those hard edges into mush.