About Pixformat

Who makes Pixformat

Freelance web designer and developer

Created and maintained by Eneko Martínez. Pixformat is one of the tools Eneko builds independently.

Works
Remotely
Languages
Spanish, Italian, English and French
Contact Eneko

The contact form is on Eneko's own website, which is in Spanish.

What Pixformat is

Pixformat is a free image converter that runs in your browser. You add JPG, PNG, WebP, GIF or BMP files and save them as JPG or PNG, plus WebP and AVIF when your browser can create them. There is no sign-up, no watermark and no ad scripts on the pages.

How a conversion works

Your browser decodes the image, draws it on a canvas and saves it in the format you chose. The work runs in your browser, in background workers when the browser supports them, and the code that converts your files doesn't send them anywhere. The site does load Google Analytics to count visits; the privacy page explains what it measures.

What stays fixed

Pixformat keeps its settings simple, so every conversion behaves the same way.

Fixed output settings
OutputSetting
JPGLossy, fixed quality of about 85%. Transparent areas are filled with white
PNGLossless. Transparency is kept
WebPLossy, fixed quality of about 82%. Offered only if your browser can create it
AVIFLossy, fixed quality of about 65%. Offered only if your browser can create it

Images are never resized, so the width and height stay the same. Animated GIF and WebP files are converted to a still image from their first frame. There is no quality slider.

What Pixformat can't do yet

Pixformat doesn't read HEIC, AVIF, TIFF, ICO, PDF or video files, and it can't resize images or let you choose the compression quality. For those, use the original file or another tool.

Where the numbers on the converter pages come from

Each converter page, such as WebP to JPG or JPG to WebP, has a table of file sizes. They come from a script that runs this same converter on a fixed set of synthetic test images, and each table shows the date and the browser used. Your own images will give different results, which is why every converted file shows its own size change.

Back to the converter

By . Last updated . Everything on this page describes what Pixformat does today.