Artikel & Anleitungen

Why HEIC files are 2-3x smaller than PNG, when the conversion makes sense, and how to convert PNG to HEIC online for free.

iPhone photos come as HEIC files that Windows and Android often cannot open. Here is how to convert HEIC to JPG in seconds, free.

A practical comparison of WebP, JPG, PNG and AVIF: file sizes, quality, browser support, and which format to pick for websites, photos and graphics.

Turn any video clip into an animated GIF online: when GIF beats video, what settings matter, and a free MP4 to GIF converter.

Pull the soundtrack out of any MP4, MOV or WebM video as an MP3 file — online, free, no software to install.

What the AVIF image format is, how much smaller it really is than JPG and WebP, browser support status and when to use it.

Three ways to open iPhone HEIC photos on a Windows PC: free Microsoft extensions, converting to JPG, and what to avoid.

Which audio format to choose: MP3 for compatibility, AAC for quality per megabyte, FLAC for lossless archiving, OGG/Opus for voice.

The difference between video containers MP4, WebM and MKV, which codecs live inside them, and which one to pick for the web, archiving or sharing.

What favicon sizes a modern site needs, why ICO format still matters, and how to convert a PNG logo to ICO online for free.