What Pinterest actually stores behind a pin
When you look at a pin you see one picture or one video. Underneath, Pinterest is holding something more like a drawer of copies, and almost every confusing thing about saving from Pinterest comes from not knowing that.
A video pin holds up to six files
Take one recipe pin — a twenty-second takoyaki clip. Pinterest is storing that clip six times over:
- one 720p file in H.264, the format that plays on everything
- five HEVC files, numbered internally from smallest to largest
Measured on that pin, the sizes ran 1.39 MB, 1.8 MB, 2.46 MB, 3.6 MB and 5.1 MB for the HEVC set, with the 720p H.264 file at 8.65 MB. Same twenty seconds. A six-fold difference between the smallest and largest copy.
Why keep six? Because Pinterest is guessing at your connection and your device before it plays anything. A phone on patchy mobile data gets a small one, a laptop on wifi gets a big one, and you never see the switch happen.
There is also a playlist that is not a file
Alongside those, every video pin carries an .m3u8 — a streaming playlist. It is not a video. It is a text file listing chunks of video for a player to fetch in sequence, which is how the pin plays smoothly while you scroll.
This matters if you have ever tried a tool that handed you an .m3u8 and called it a download. You got a shopping list, not the groceries.
Image pins do the same thing quietly
An image pin usually holds five or six copies of the same photo at different widths, plus something Pinterest labels the original.
The label is not reliable. On one recipe pin, the file under originals is a 0.03 MB WebP, while a plainly larger 0.04 MB JPEG sits beside it at a fixed width. Trust the label and you take home the smaller picture while believing you took the biggest.
The only honest way to pick is to check what the files actually weigh, which is why the lookup on this site sorts by measured size rather than by what the path says.
The picture you are looking at is not the biggest one
This is the practical consequence. Pinterest serves whatever width suits your screen. Save a pin from a phone and save the same pin from a desktop, using something that grabs "the image on the page", and you get two different files.
Nothing is broken when that happens. You were shown two different copies from the same drawer.
Why this shapes the tool
One request for a pin page returns all of it — the video renditions, the playlist, and every image width — in one response. So the split you see everywhere else, a video downloader here and an image downloader there, is a filing decision rather than a technical one. There is one lookup, and it reports what the pin is actually holding.