Articles

Guides to everyday file formats

Practical explainers for the formats and conversion choices that show up in real work. No fluff, no upsells. Written for people who just want to pick the right option and move on.

Images

WebP vs JPG vs PNG: choosing the right image format

Each format has a job. We break down where each one wins, where each one loses, and how to pick without overthinking it.

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PDFs

How to compress a PDF without losing quality

What actually makes a PDF big, what compression really does to text and images, and how to get a small file that still looks sharp.

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Audio

MP3 vs FLAC vs OGG: an audio format guide

Lossy, lossless, free, proprietary. Here is how the common audio formats differ and which one to pick for music, podcasts, and voice notes.

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Video

MP4 vs WebM vs MOV: when to use each video format

Three containers, three jobs. We compare playback support, file size, and editing workflows so you can pick the right one for your project.

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Images

What is QOI? The quirky image format explained

A 2021 lossless format that fits in 300 lines of C. Here is what makes QOI interesting, when to actually use it, and when to stick with PNG.

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How-to

How to convert HEIC photos to JPG on Windows

iPhone photos do not always open cleanly on a Windows laptop. Here is what HEIC is, why Windows struggles with it, and the fastest way to convert.

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Video

Why MKV files will not play on iPhone (and how to fix it)

Apple does not natively support MKV. We explain why, what changes when you convert to MP4, and how to keep audio and subtitles intact.

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Privacy

Browser converters vs desktop apps: which is safer?

Uploading files to a website is not the same as running a conversion locally. Here is the practical difference and how to spot which kind a tool actually is.

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