Question 1

How do I resize an image to an exact size?

Accepted Answer

Add the size, from a preset or by typing its width and height, and the Brushless image resizer makes the file at exactly those pixels. When the shape changes, the photo is cropped to fill it around the dot you place, or fitted whole with a color or a blurred copy around it; it is never stretched.

Question 2

Can I resize one image to several sizes at once?

Accepted Answer

Yes: add every size you need, set the dot once, and download them together as a ZIP with each size in its file name, such as beach-1080x1440.jpg. The Brushless image resizer makes them one after another on your own device.

Question 3

How do I batch resize images?

Accepted Answer

Drop all the photos into the Brushless image resizer at once, add the sizes, and every photo is made at every size, cropped around its own dot or fitted whole. Download all puts them in one ZIP with a folder per size, such as instagram-portrait-1080x1440/beach-1080x1440.jpg, and nothing is uploaded.

Question 4

Can I resize an image without losing quality?

Accepted Answer

Yes, when it gets smaller: the Brushless image resizer scales down in steps of no more than half, which keeps fine detail from breaking into jagged patterns, and saves JPG and WebP at quality 90 and PNG without loss. Making an image bigger than it is does lose sharpness, because the extra pixels are guessed, so a size like that is flagged and made at the largest size the photo can fill unless you ask for the bigger one.

Question 5

How do I resize an image for Instagram?

Accepted Answer

Use the Instagram portrait preset, 1,080 × 1,440 pixels, the tallest shape Instagram's feed takes (3:4) at the 1,080-pixel width it shows; there is also 1,080 × 1,080 for a square post and 1,440 × 2,560 for a story. Put the dot on what matters and the Brushless image resizer crops each size around it.

Question 6

What size is a YouTube thumbnail?

Accepted Answer

3,840 × 2,160 pixels, 16:9, is what YouTube asks for, and it takes thumbnails from 640 pixels wide. The YouTube thumbnail preset in the Brushless image resizer makes that size, or the largest clean 16:9 size of a smaller photo.

Question 7

How do I make an image smaller in width and height?

Accepted Answer

Add the smaller size, from a preset or by typing its width and height, and the Brushless image resizer draws the photo down to exactly those pixels, halving at most once per step so fine detail does not break up. To make the file smaller in kilobytes and keep its width and height, use the Brushless image compressor instead.

Question 8

How do I crop an image?

Accepted Answer

Choose Crop to fill and add the size you want: the Brushless image resizer crops the image to that shape around the dot, which you drag onto what matters. To crop one size differently, drag inside its card; that size then ignores the dot until you reset it.

Question 9

Are my images uploaded?

Accepted Answer

No. The Brushless image resizer reads, resizes and saves your photos inside your browser, on your own device, and sends them nowhere.

Question 10

Which formats can I resize?

Accepted Answer

JPG, PNG and WebP, which keep their format, plus HEIC and camera RAW (NEF, CR2, ARW, PEF, NRW, SRW and CR3), which come back as JPG. Safari cannot write WebP, so there a WebP comes back as PNG.

Question 11

Is the image resizer free, with no limit?

Accepted Answer

Yes: the Brushless image resizer is free to use online, with no account and no daily limit, and it resizes as many photos to as many sizes as your device can hold. One ZIP carries up to 65,535 files or 4 GB, so a batch past that is downloaded in parts. In our test in Chrome, a 50-megapixel photo opened in 0.24 seconds and made ten sizes in 0.25 seconds.

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