Image resizer for social and web
One image, every size a platform expects — and you see the crop before uploading.
Runs entirely in your browser. Nothing you paste is uploaded or stored.
Drop an image and pick the sizes you need. Everything is generated on your device.
What this tool does
It takes one image and produces every size you need at once, with a preview of each crop. Select the platforms, see the results, download them individually or all together.
The reason to do this before uploading rather than after: platforms crop from the centre, silently. A group photo that works as a landscape image loses both people at the edges when it becomes a story. A logo centred in a square becomes a logo cut in half in a banner. You find out when the post is live and the crop is already what everyone saw.
The sizes that matter most
1200 × 630 — Open Graph. The single most valuable size on this list, because it controls how every share of your page looks across Facebook, LinkedIn, Slack and X. Get it wrong and links from your site appear as bare text.
1280 × 720 — YouTube thumbnail. Also capped at 2 MB, which is why the quality control here matters: a 4 MB thumbnail is simply refused at upload.
1584 × 396 — LinkedIn banner. An extreme ratio that eats almost any photograph. Design for it rather than crop into it.
1080 × 1920 — story and reel. Vertical, and the top and bottom areas are covered by interface elements, so keep anything important in the middle.
Crop to fill, or fit with margins
Crop to fill matches what the platform would do, and is right when the subject is central and the image has room to lose.
Fit with margins keeps the whole image and pads the rest with a colour you pick. It is the honest choice for logos, screenshots, diagrams and product shots on white — anything where cutting the edges destroys the meaning.
Questions
Why does my image get cropped instead of squashed?
Because platforms crop rather than distort, and they crop from the centre. Fitting a landscape photo into a story frame means most of the width disappears. The previews here show exactly what survives, which is the whole point of checking before you upload rather than after.
What size should an Open Graph image be?
1200 by 630 pixels. That is the 1.91:1 ratio Facebook, LinkedIn and X all crop to. Smaller than 1200 wide and some platforms drop the large card and show a small thumbnail instead.
Can I make an image bigger than the original?
The tool will do it, and it warns you when it happens, because upscaling invents pixels that were never captured. A 600 pixel photo blown up to a 1280 thumbnail looks soft in a way viewers read as low quality. Start from the biggest file you have.
JPEG, PNG or WebP?
JPEG for photographs going to social platforms — they re-encode everything anyway, so a PNG only costs upload time. PNG when the image contains text, a logo or flat colour. WebP for your own site, where you control what the browser receives.
Are my images uploaded anywhere?
No. The image is decoded and redrawn by your browser, and every output file is created on your device. That also means the metadata is stripped along the way, including camera and location data.