Video guides

How to get video jobs done in the browser — and what each choice costs you. Each guide links to the tool that does it.

The shapes each feed expects, why the aspect ratio matters far more than the resolution, and the one setting people get backwards.

Genuinely lossless is not on offer — but the difference between a careful compression and a careless one is large, and it is mostly about order.

How the three compare on efficiency and compatibility, why licensing shaped which won where, and which two Dexta can actually produce.

What the encoder is actually doing to every frame, why it runs on one thread here, and the things that genuinely make it faster.

When the difference is genuinely visible, when it is not, and why 720p is often the better delivery choice even from a 1080p source.

What the numbers mean, how pixel count drives file size, and why the resolution you record at is rarely the one you should deliver at.

The real attachment limits, why a 24MB file can still bounce, and the settings that reliably get a phone clip under them.

The four levers, in the order that actually saves the most, and how far to push each before it starts to show.

The arithmetic behind a 300MB phone clip, which of resolution, frame rate and duration actually dominates, and what to do about it.

What the Constant Rate Factor actually controls, what the numbers mean, and why the same CRF gives a different result in H.264 and VP9.

What bitrate actually measures, how it relates to file size and quality, and why Dexta gives you a quality target instead of a bitrate field.

Why a minute of video is not 60 still photographs, what an encoder actually throws away, and why the same setting behaves differently on two clips.