About PixelFit

Why PixelFit exists

Upload forms are strict and vague at the same time. A visa form wants 600 × 600 pixels, an exam portal a photo between 20 and 50 KB, a job site anything under 100 KB, and almost none of them say whether a kilobyte means 1,000 or 1,024 bytes. Most people try one resizer after another until the form finally accepts the file.

PixelFit does that job in one pass. You type the numbers from the form; the tool crops or pads the photo to the exact pixels, finds the highest quality that fits the KB range, and shows the final byte count before you download. It reads a maximum as 1,000-byte kilobytes and a minimum as 1,024-byte ones, so the file passes both ways of counting.

Everything runs in your browser. Photos of faces, signatures and documents are exactly the files that should not be sent to a stranger’s server, and here they are not: the page loads once and the work happens on your device. That also keeps the site cheap to run, which is why the core tool is free without ads.

What is on the site

• The image resizer, which compresses and resizes photos to an exact KB and pixel size in your browser.
• Compress an image to any KB or MB size: 50 pages.
• Photo and signature sizes for online forms: 61 pages.
• Resize an image to an exact pixel or print size: 150 pages.
• Change image format: HEIC, WebP, PNG, SVG to JPG or PDF: 32 pages.
• JPG to PDF under a file size (20 KB to 10 MB): 21 pages.

How the pages are made

The reference pages are generated from small datasets kept with the site: photo and signature specs for forms and portals, each with its official source and the date it was checked; common pixel and print sizes and what they are used for; image format facts taken from their specifications; and compression measurements made by encoding public-domain and CC0 sample images at many pixel sizes and quality settings. Every number on a page is computed from those rows when the site is built, and every page embeds the same tool, pre-filled with that page’s values.

How the tool works

When you add a photo, your browser decodes it (respecting the orientation the camera stored), crops, fits or pads it to the pixel size you asked for, and scales it down in halving steps so fine detail is averaged rather than dropped. It then encodes the result at a series of quality settings, narrowing in on the highest one that stays under your limit, and, if even quality 40 is too big and you did not lock the pixels, reduces the pixel size instead of dropping the quality further. All of this happens in the page, on your device.

How the site is funded

The free tool is paid for by an optional one-time Pro upgrade for people who resize photos in bulk. There are no display ads and no sponsored placements, and the photos you resize are never collected. See the privacy policy for what the site does record, and the pricing page for what Pro adds.

Who runs PixelFit

Operated by Deljan Bregasi, Salem, Massachusetts, USA. The terms and the refund policy cover Pro.

Specs change: check the source

Every form and portal page links the official notice its numbers come from and says when it was checked. Agencies and exam boards revise their requirements, so verify with the official notice before you submit, and if the two disagree, follow the notice.