Video formats and quality
Here you'll find PullVid's guides on video formats and quality: which resolution to pick depending on what you'll use the video for, the difference between MP4 and MKV, how to download in 4K or 2K when the source video supports it, and how much storage each quality takes on your device. These are the most common questions before hitting download, answered without unnecessary jargon. Pick the guide you need and always download in the format that's right for you.
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MP4, WebM, MKV: Which Video Format to Choose When Downloading
Video format comparison: MP4, WebM, MKV, and AVI. Find out which one offers the best quality and compatibility for your downloads.
Convert a video to MP4: how to download it already in this format
Need a video in MP4? With PullVid you download it straight in MP4, the most compatible format. No conversion software: paste the link, pick MP4, and you're done.
What resolution to download? 720p, 1080p, or 4K (quick guide)
720p, 1080p, or 4K: which resolution to pick based on your screen, your use, and the space you have. A clear guide with a table so you never hesitate when downloading a video.
Do you lose quality when downloading a video? The clear answer
No: downloading a video copies the file as-is, without re-compressing. Quality depends on the source and the format you pick, not on the act of downloading. Here's why.
How much does a video weigh by quality? File size table
How much space does a video in 720p, 1080p, or 4K take? A rough size table by resolution and length so you know how much space you need before downloading.
How to Download Videos in 4K: Complete Guide (2026)
Everything you need to know to download videos in 4K quality. Requirements, formats, supported platforms, and the best tools.
MP4 vs MKV: which format to choose when downloading a video
Choose MP4 for maximum compatibility (mobile, social, any player) and MKV only for 4K or videos with multiple audio/subtitle tracks. Here's the difference.
How to Download a Video in 2K (1440p)
What 2K (1440p) is, when to choose it over 1080p and 4K, and how to download a video in that resolution when it's available. An honest resolution guide.