Free Image Resizer
This free tool resizes images to an exact pixel size or by percentage in your browser, keeping the proportions correct and saving in the same format you started with.
Drop images here
PNG, JPG, WebP, or GIF — add as many as you like
Runs entirely in your browser. Your images are never uploaded to a server.
How it works
- Drop one or more images onto the box above, or click to choose them.
- Enter a width or a height. With proportions locked, the other side follows automatically so nothing stretches.
- To scale rather than target an exact size, switch to percentage. Resizing several images at once always uses percentage, because one fixed width across differently sized images rarely gives what you want.
- Download the image, or the whole batch as a ZIP.
Common use cases
- Getting a photo under the pixel limit a form or job application specifies.
- Shrinking oversized phone photos before attaching them to an email.
- Making product images a consistent width across a Shopify or WooCommerce catalog.
- Producing a smaller copy of an image for a blog post so the page loads faster.
- Scaling a whole folder of screenshots down by half in one pass.
Frequently asked questions
- Will resizing make my image blurry?
- Making an image smaller is safe and usually looks sharper than the original at that size. Making it larger cannot add detail that was never captured, so anything above 100 percent will look soft. The tool uses high-quality smoothing, which avoids the jagged edges a basic resize produces.
- Does it keep the proportions?
- Yes, by default. Type a width and the height follows. If you need an exact size in both directions and do not mind the image stretching, untick 'Keep the original proportions' — though cropping is usually the better answer than distorting.
- What format do I get back?
- The same one you put in. A JPG comes back as a JPG, a PNG as a PNG. Resizing a photo should not hand you a file several times larger because the format changed underneath you.
- Can I resize several images at once?
- Yes. Drop as many as you like and download the results as a single ZIP. Batches scale by percentage rather than to a fixed pixel size, since applying one width to images of different shapes gives inconsistent results.
- Is there a file size limit?
- No limit is imposed, but everything is processed by your own device, so a very large batch of high-resolution photos depends on how much memory your browser has available.
- Are my images uploaded to a server?
- No. Resizing happens entirely in your own browser using the Canvas API. The files never leave your device, and nothing is stored.
Related tools
Understand what this does
Plain explanations of what is happening to your file, and what it costs you.
- Does compressing an image reduce quality?Sometimes, and much less than you would guess. We measured it: the first save does nearly all the damage, and after that a JPEG stops degrading entirely.
- Why is my JPEG so big?Usually too many pixels, and often invisible sensor noise — which cost us five times the file size in testing. Ranked by how much each one actually costs.
- Is it better to resize or compress an image?We hit the same file size three different ways to find out. Resizing won every time, and at the tightest budget compression could not even reach the target.
- JPG vs JPEG: is there any difference?None at all. Same format, same file, different number of letters — and here is what is really wrong when a site rejects one and accepts the other.
- What is aspect ratio?The shape of a picture, not its size, and the reason your photo came back with someone's head missing.
- Why won't my image upload?Ranked by how often each one is actually to blame — and the message on screen is frequently wrong about which of the five you have hit.
- How do I make a photo small enough to email?The published limit is not the real limit, and the quality slider will not get you under it. Reducing the dimensions will, every time.
- What is a favicon?The small square in the tab, and the handful of files that cover everything asking for one. The hard part is not making them — it is that a logo stops being readable long before it gets that small.
- What size should Etsy listing photos be?The number is the easy part. The part that costs sales is that the same photo is cropped three different ways depending on where a buyer sees it.
- What is image resolution?It is the pixel count, not the DPI and not the file size. And there is no such thing as high resolution until you say what it is for.
- Raster vs vector: what is the difference?One stores pixels, the other stores instructions. That is why your logo goes fuzzy on a banner, and why the printer keeps asking for a file you do not have.
- RGB vs CMYK: which one do you actually need?One is light, the other is ink, and that single fact explains why the bright blue on your screen comes back from the printer looking flat.