Upscale image online

Enlarge photos 2× to 8× in quality-preserving steps — or keep pixel art crisp with nearest-neighbor scaling. Everything runs in your browser: no uploads, no sign-up, no watermarks.

How to enlarge an image

1. Drop your image onto the tool or click to choose a file. The before/after previews appear immediately.
2. Pick a scale and a mode. The result preview and its exact dimensions update automatically as you change settings.
3. Hit Download. The enlarged image is saved straight from your browser.

What upscaling can and cannot do

It can

Give small screenshots and photos more pixels so apps and platforms accept them.
Make an image look smoother at 2× or more than a single clumsy resize would.
Turn 1× pixel art into clean 4× art with every block edge still razor sharp.
Fit old, low-resolution files into modern layouts and print grids.

It cannot

Create detail that was never captured — new pixels are interpolated, always.
Make a heavily compressed or tiny photo genuinely high-resolution.
Magically sharpen: an 8× enlargement of a small photo will look soft up close. That is physics, not a bug.

Scaling modes explained

Smooth (default): Interpolates between neighbouring pixels with the browser's highest-quality resampler. Enlargements happen in small ≤2× steps — one doubling at a time, then an exact final pass — which produces noticeably cleaner edges than resizing in one jump.
Crisp (pixel art): Nearest-neighbor scaling: each source pixel becomes a solid block with hard edges, so retro-style art stays blocky instead of turning into mush. Not recommended for photographs.
Output format: Auto keeps the original format (AVIF inputs become WebP, since browsers can't re-encode AVIF). PNG is lossless, so enlarged pixel art is best saved as PNG or WebP lossless.
MAXIMUM OUTPUT SIZE (16384 px / 40 MP): Browser canvas limits apply. When a scale choice would exceed them, the output is clamped and the tool says so — dimension limits are never silently ignored.

Output behavior

Output dimensions are exactly the scale you picked (clamped only when a hard limit applies).
The image is re-encoded, so EXIF, GPS and camera metadata are not carried over.
Transparency is preserved in PNG and WebP output; JPEG flattens it to white.
Enlarged files are bigger — both in pixels and usually in bytes. That is expected.

Privacy

This tool works completely offline in your browser. Your image is read into memory, enlarged and re-encoded locally, and offered back to you as a download. Nothing is transmitted to any server, and closing the tab discards everything.

Browser & device compatibility

JPG, PNG and WebP work in every modern browser.
AVIF input needs a recent browser — current Chrome, Edge, Firefox or Safari 16+. On older browsers you'll see a clear message instead of a broken result.
Large upscales need real memory — an 8× enlargement of a big photo can exceed what a phone browser allows. Processing happens on your device, so your hardware sets the ceiling.

Troubleshooting

"That file type isn't supported" — the file isn't a JPG, PNG, WebP or AVIF image. Rename or re-export it first.
"Your browser couldn't decode this file" — the type is recognized but this browser can't read it (often AVIF on an older browser), or the file is corrupted.
Result looks blurry — smooth interpolation, as designed. For sharper edges at moderate scales try "Crisp" mode; for real detail, start from the largest original you have.
Upscale capped — the requested scale would exceed 16384 px per side or the 40-megapixel budget; the tool clamps instead of failing.

Related tools

Resize Image — Change dimensions in pixels with aspect ratio preserved.
Compress Image — Reduce JPG, PNG and WebP file size with quality you control.
Convert Image — Convert between JPG, PNG, WebP and AVIF without uploading a thing.

Frequently asked questions

How do I make an image bigger without losing quality?

Drop your image, choose a scale (2× to 8×) and download. Enlargement is done in small doubling steps with the browser's highest-quality resampling, which keeps edges smoother than a single big resize — but no upscaler can create detail that was never captured.

Can upscaling add detail or sharpen my image?

No tool can truly recover detail that is not in the file — new pixels between existing ones have to be invented either way. Rather than promise "AI enhancement", this tool draws the enlargement honestly: smooth interpolation for photos, and an option below that keeps hard pixels crisp for pixel art.

Does upscaling improve image quality?

No — upscaling cannot invent detail that was never captured. It makes images larger by interpolating new pixels out of the ones that exist, which is why this page shows measured results at every scale factor instead of promising sharper output. If your goal is a smaller, faster file rather than a bigger one, use the resize or compress tools instead.

When should I use the "Crisp pixel-art" mode?

When every enlarged cell should stay a hard-edged block: pixel art, retro game sprites, QR codes, blocky diagrams. Smooth mode blends neighbouring pixels — right for photos, wrong for art where fuzzy edges ruin the look.

What is the maximum output size?

Browsers cap canvas dimensions at 16384 px per side, and output is capped at 40 megapixels to stay within device memory. If your scale choice exceeds those limits, the tool clamps it and tells you — it never silently shrinks your request.

Are my images uploaded to a server?

No. Upscaling runs entirely in your browser on your device's own processor. Your images never leave your computer or phone.