Social Image Resizer
Crop or pad any image to the exact size each platform wants.
- Runs entirely in your browser
- Nothing is uploaded
- Works offline once loaded
Crop to fill, or pad to fit
There are two ways to move an image between shapes, and they produce very different results.
- Crop to fill scales the image until it covers the whole frame, then cuts away the overflow. Nothing is letterboxed, but you lose part of the picture from the edges.
- Pad to fit scales the image until it fits entirely inside the frame, then fills the gap with a colour you choose. Nothing is lost, but the subject appears smaller.
Crop works well for photographs where the subject is centred. Pad is better for logos, screenshots, text-heavy graphics and product shots where cutting anything off would be a problem.
Which size to pick
- 1080 × 1920 — Reels, TikTok, Stories, Shorts. The full-screen vertical format.
- 1080 × 1350 — the tallest shape the Instagram feed allows, so it takes up the most screen.
- 1080 × 1080 — square. Safe everywhere, but wastes vertical space on phones.
- 1920 × 1080 — landscape, for YouTube and website embeds.
- 1000 × 1500 — the standard Pinterest pin at 2:3.
- 1200 × 630 — Open Graph, the preview card shown when a link is shared.
Why resize before uploading
Platforms re-encode anything that does not match their expected dimensions, and that re-encode is where quality gets lost. Uploading a correctly sized file means the platform has less work to do and your image survives closer to how you made it.
It also means you decide what gets cropped, rather than an algorithm deciding for you.
Frequently asked questions
What does the padding colour do?
It fills the empty space when you pad to fit. White works for most things; matching your brand colour or the image background usually looks more deliberate.
It has no effect when cropping to fill, because there is no empty space.
Can I choose which part gets cropped?
Not currently — the crop is centred, which suits most photographs. If your subject sits off to one side, crop it in a photo editor first and then resize here.
Will it upscale a small image?
Yes, if the source is smaller than the target. Be aware that upscaling cannot invent detail, so a small image enlarged to 1080 × 1920 will look soft. Start with the largest original you have.
Is my file uploaded anywhere?
No. This tool runs entirely in your browser using the File API and a canvas element. Your file is read from your own device, processed on your own hardware, and returned to you.
You can verify this: load the page, disconnect from the internet, then use the tool. It will work normally. A tool that uploaded your file could not.
Every SnapView tool runs inside your browser. Files you open here are read by your own device and are never uploaded, stored or transmitted anywhere. You can disconnect from the internet after this page loads and the tools will still work — which is the simplest way to verify that claim for yourself.