Resize images

There are four modes. Width and height lets you set either side. A lock keeps the shape. Turn the lock off to stretch to an exact size. Percentage scales every image by the same amount. That is the easiest way to shrink a batch of mixed sizes.

Longest side sets the longer edge. A tall photo and a wide photo then match on their longest edge. Social media size picks a ready-made size for a platform, such as an Instagram post or a YouTube thumbnail. When the shape does not match, you can fit inside with a background fill, fill the frame and crop, or stretch. You can also set a target file size in KB or MB. Type your number, then press Resize.

One number is enough to start. If you press Resize with every box still empty, the tool stops and asks you to enter a width, a height, or a target file size, so a batch is never processed at its original size by accident.

By default the lock keeps the aspect ratio, so nothing is squashed. Turn off Lock aspect ratio only if you want an exact size. That setting lives in width and height mode. Scaling a small image up works too. A much bigger copy can look soft, so enlarge only when you need to. In longest side mode, tick Allow enlarging to scale past the original.

To fit an upload or email limit, set a smaller longest side, such as 1600 pixels. You can also set a target file size in KB and let frisqoo hit it for you. For a website, resize each image to the width it is really shown at. Pages then load faster and still look crisp. For a social post or avatar with an exact width, use width and height mode and type that number.

The saving is usually bigger than people expect. A 1920 by 1280 photo of 742 KB came out at 1200 by 800 and 273 KB, a drop of 63 percent, with the export quality left at its default.

Pick Social media size and the width and height boxes give way to one list. The sizes are grouped by platform. Instagram, Facebook, X, LinkedIn, YouTube and Pinterest are all there, along with plain web and screen sizes such as Full HD and a square icon. Choose an entry and the exact size is filled in for you.

Most presets are a different shape from your photo, so a second choice appears. You can fit inside and pad, fill the frame and crop, or stretch to the exact size. A background fill covers any padding, and it can be transparent for PNG and WebP. A 1920 by 1280 photo sent to the YouTube thumbnail preset came out at exactly 1280 by 720 and 230 KB, a drop of 69 percent. It was padded at the sides, because a 3:2 photo cannot fill a 16:9 frame without cropping.

Add as many images as you like. They are all resized with the same settings. A mixed folder of screenshots and photos ends up at one steady width. Each image keeps its own name and shows its own before and after size. A batch of three photos of 1.62 MB together came out at 677 KB.

With more than one image, the download button becomes Download all (zip). The set saves as frisqoo_resized-images.zip, and every file keeps its own name inside. A file the tool cannot rewrite is marked 1 kept as is and returned untouched, so a mixed batch is never reported as smaller than it really is.

Five formats are resized. Here is what each one did at a width of 800 pixels, with the export quality left alone:

• JPG. A 1920 by 1280 photo of 760,063 bytes came out at 800 by 533 and 111,779 bytes, a drop of 85 percent.
• PNG. A 1920 by 1435 image of 71,074 bytes came out at 800 by 598 and 38,134 bytes, and kept its transparent background.
• WebP. A 1920 by 1080 image of 42,504 bytes came out at 800 by 450 and 21,712 bytes.
• TIFF. A 5215 by 5215 scan of 14,307,798 bytes came out at 800 by 800 and 640,982 bytes, still a TIFF.
• BMP. Resized and saved as a PNG, because a browser cannot write BMP back out.

Three formats come back untouched. Each is marked 1 kept as is in the summary, and the file you download is byte for byte the file you added:

• GIF, so an animation keeps every frame. A 84,885 byte GIF came back at 84,885 bytes.
• SVG, because a vector already scales to any size on its own.
• AVIF, which a browser cannot write back out yet. A 283,401 byte file came back at 283,401 bytes.

Watch the count in the summary line when you resize a mixed folder. It tells you how many files were really rewritten, so a batch is never reported as smaller than it is.

Some upload forms cap the file size, not the width. Set Target file size in KB or MB and frisqoo works down to it for you. It lowers the JPEG or WebP quality in small steps until the file fits.

Here is what that did to one 742 KB photo. At 1200 pixels wide with no target, it saved at 273 KB. With a 100 KB target it came out at 99 KB. With a 20 KB target it came out at 18 KB. An 800 pixel copy with a 50 KB target landed at 50 KB.

Pick a width first, then a target. A tiny target on a wide image has to drop a lot of quality. A narrower width does more of the work, so the picture still looks clean.

You can scale up as well as down. In width and height mode, type a number larger than the original. In percentage mode, use anything above 100. In longest side mode, tick Allow enlarging past the original size first.

A bigger copy will never gain detail that was not there. Small jumps look fine. A big jump looks soft. If you need a large print, start from the biggest file you have.

Every device has a built-in way to do this. On a Mac, open the photo in Preview, then use Tools and Adjust Size. On Windows, open it in Paint and use Resize. In Photoshop it is Image size.

Those all work on one file at a time. This page runs in the browser, so it works the same on a phone, and it takes a whole batch in one go. Nothing is installed and nothing is uploaded.

Yes. Many free image tools upload your photos to their own servers to do the work. This tool does not. Your images are read and resized right inside your browser. They are never uploaded, stored, or seen by anyone else. That makes it a safe choice for personal photos, ID scans, and anything else you would rather keep off a server you do not control.

• Shrinking phone photos so they fit an email or upload limit.
• Setting product or blog images to one width so a page loads faster.
• Scaling a whole batch down by a percentage before sharing them as a zip.
• Making a large scan or TIFF smaller without changing its format.
• Setting a target file size in KB to slip under an upload limit.
• Resizing a logo to an exact width while keeping its transparent background.