Guides
Make video small,
and know why it worked.
Every size limit here is checked against the platform's own help pages and dated. No filler, no "top 10 apps" lists.
How to compress a video on Android without losing quality
Phones record video with far more data than a phone screen can show. Here's how to remove the part you'll never see — and keep the part you will.
Read the guide →- iPhone
How to compress a video on iPhone (and send one that's too large)
The Photos app can trim a video, and AirDrop and Mail Drop can move a big one — but none of them makes the file itself smaller. Here's what does, and when you need it.
- WhatsApp
How to send a long video on WhatsApp
WhatsApp has a video limit and a document limit — and which you hit depends on a single tap. Here's how to get any video through, and what each route costs you.
- Discord
Video too big for Discord? How to fit the new 20 MB limit
Discord doubled the free limit in August 2026, then quietly made it stricter on phones. Here's what changed, and how to get a clip through on the first try.
- Email
How to email a large video: Gmail, Outlook and Yahoo limits
Email is the oldest way to send a video and still the strictest. Here are the real limits for each provider — and the reason a file that looks small enough sometimes isn't.
- Codecs
H.264 vs H.265 (HEVC) vs AV1: which codec should you use for phone videos?
The codec decides how much quality you get per megabyte. Here's what the three that matter actually trade — and why "the newest one" isn't always the right answer.
- Privacy
Are online video compressors safe? What happens when you upload a video
A "free online compressor" usually means a copy of your video on a stranger's server. Here's what an upload involves — and how to check any tool in two minutes.
- Storage
Phone storage full? How to free up space without deleting your videos
When the phone says storage is full, videos are almost always the reason. You don't have to choose which memories to delete — here's what each option really gets you back, and what it costs.
- Social
Instagram Reels and TikTok video size limits (October 2026)
What Instagram and TikTok actually publish about video limits, what they don't, and how to hand them a file they won't crush.
- Size limits
Video too large to send? The size limit of every app (November 2026)
Every app sets its own limit, and some don't publish one at all. Here they all are in one place, each with the page it comes from, plus the quickest way to make a video fit.
- KakaoTalk
KakaoTalk video size limit: 300 MB, and how to send a longer video
Kakao's help gives one number for video, 300 MB, and none for length. Here's how long a clip that buys you, and what to do when yours is over it.
- Tool
Video size calculator
Work out the bitrate that fits a video under any cap — or how big a video will be at a given bitrate.