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Guides

Plain-English how-tos for getting the most out of pixelpix's free, in-browser tools — which format to pick, how to shrink a file, and when each tool is the right one.

GIF vs MP4: which should you use?

GIF or MP4? Why MP4 is usually smaller and smoother, when a GIF still wins, and how to convert between them for free without uploading.

WebP vs AVIF vs JPEG vs PNG: which image format?

A plain-English guide to choosing between JPEG, PNG, WebP and AVIF — which is smallest, which keeps transparency, and how to convert for free.

How to shrink a PDF so you can email it

PDF too big to email? Why PDFs get large, the fastest ways to shrink one, and how to do it free in your browser without uploading a private document.

How to remove an image background for free

Remove a photo background free, with no watermark and no upload, using an AI model that runs in your browser. Plus tips for clean edges and stickers.

How to reduce video file size without losing much quality

Make a video smaller for email, uploads or the web — what actually controls video size, and how to compress one free in your browser with no watermark.

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