AI Image Upscaler

Make small images bigger, free, right in your browser. Your image never leaves your device — nothing is uploaded anywhere.

Made for the USA and Worldwide✓ 100% Free✓ No Sign-Up✓ Runs in Your Browser

AI Image Upscaler

Make a small image bigger, free, right in your browser. Your image never leaves your device — nothing is uploaded to any server.

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Honest limits: This tool enlarges your image and smooths the result so it looks less blocky. It does not invent true detail the way a paid AI super-resolution model claims to — a blurry face will become a larger, smoother blurry face, not a sharp new face. If you need real detail recovery, that requires a trained model running on a server, which is why those services charge money.

How to upscale an image

  1. Click "Choose an image" and pick a photo or picture from your phone or computer.
  2. Choose 2x for a modest enlargement or 4x for a much larger version.
  3. Keep "Smooth edges" checked unless you want crisp, blocky pixels (useful for pixel art).
  4. Click "Upscale Image", compare the result with the original, then click "Download PNG".

How it works

Your browser draws the original image onto a larger canvas. With smoothing on, the browser blends neighboring pixels as it stretches the image, which softens the stair-step edges that appear when pixels are simply doubled. With smoothing off, each original pixel becomes a solid block of color — that is the classic pixelated look, sometimes exactly what you want for retro graphics.

Worked example

Example: A 400 x 300 px product thumbnail upscaled 2x becomes 800 x 600 px (4 times as many pixels: 120,000 becomes 480,000). At 4x it becomes 1600 x 1200 px (1,920,000 pixels). The file is a standard PNG you can use anywhere — a website, a document, or a print draft.

When upscaling helps — and when it does not

Upscaling helps when an image is only slightly too small: a logo needed at twice its size, a photo for a slide that will be shown at moderate size, or an old picture you want to view larger. It does not help when the original is extremely small or heavily compressed — stretching cannot recover information that was never in the file, and 4x on a tiny, blurry image mostly produces a large, soft image. For best results, start from the largest, cleanest original you have.

Frequently Asked Questions

Is my image uploaded anywhere?

No. The image is read and processed entirely in your browser with the Canvas API. It never leaves your device and is never stored on our servers.

Will upscaling make a blurry photo sharp?

No. Upscaling enlarges and smooths; it cannot create detail that is not in the original. A blurry photo becomes a larger, smoother photo — not a sharp one. Services that claim to recover real detail use trained AI models on servers and charge for them.

Should I use 2x or 4x?

Use 2x when the image is only a little too small — it stays closest to the original quality. Use 4x when you need a much larger version and can accept some softness, for example a background or a slide image.

What is the difference between smoothing on and off?

With smoothing on, edges blend and look softer. With smoothing off, every original pixel becomes a solid block, which keeps pixel art and retro graphics crisp but looks blocky on photos.

What format is the download?

A PNG file at the new size, ready to use on websites, in documents, or in design tools.