18 free guides on shrinking video size, formats, and codecs
Every method compared: built-in, Shortcuts, and third-party apps. Which actually works.
GuideThe science of making videos smaller — bitrate, resolution, and codec explained.
TutorialNeed 25 MB or 100 MB exactly? Target size mode hits it. Here's how it works.
TutorialCompress 10, 20, or 100 videos at once. Reclaim storage from a whole trip.
GuideHow to shrink files while keeping them looking sharp. The bitrate sweet spot.
ComparisonMost free apps stamp a logo on your video. These don't — including VidZip.
iPhone shoots HEVC by default. Here's how to play it anywhere — convert or compress.
ReferenceFile size, quality, compatibility — the full comparison with real numbers.
ReferenceApple's MOV vs the universal MP4. Which should you use and when?
ReferenceWhat each codec is for, and which one your videos should use.
Email, AirDrop, Messages, WhatsApp limits explained — and how to beat them.
TutorialGmail and Outlook cap attachments at 25 MB. Hit it every time.
Tutorial4K footage is huge. Shrink it without throwing away the resolution.
GuideVideos are the #1 storage hog. Reclaim gigabytes in minutes.
ReferenceHEVC, 4K, high bitrate — why your 30-second clip is 200 MB.
Lossy vs lossless, spatial and temporal redundancy — the fundamentals.
ReferenceThe single number that decides file size and quality. Here's how to pick it.
ReferenceThe three numbers that define a video, and how they interact.
Batch compression · Target size mode · No watermark · 100% on-device
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