What image size does Facebook use?

The sizes this tool offers are Facebook's own recommendations: Feed post at 1200x630px, Page cover at 820x312px, Profile photo at 170x170px. Picking a preset resizes your image to exactly those pixels.

Is my image uploaded anywhere?

No. The file is read, resized and exported by your own browser using a canvas. It never reaches a server, so there is nothing to delete afterwards.

Will resizing make my image blurry?

Scaling down is lossless-looking; scaling a small image up cannot invent detail, so start from the largest original you have. The tool tells you when your source is smaller than the target.

Which format should I export?

PNG for graphics, text and screenshots; JPEG for photographs, where it is far smaller at the same visible quality. Both are offered after resizing.

Yes. This tool does its work in your browser, so whatever you type, paste or upload stays on your device. Nothing is sent to our servers, which is also why it keeps working if you go offline after the page has loaded.

Yes. Every tool here is free with no account, no credit card and no usage cap. They exist so that the people who need our scheduling product find us, which only works if the tools are genuinely useful on their own.

Do I need an account?

No. Open the page and use it. An account is only for OctoSpark itself, where you plan, schedule and publish a whole calendar rather than fixing one post at a time.

Can I use the output commercially?

Yes. Anything you produce here is yours, including for client and commercial work. We claim no rights over it and we do not watermark it.

OctoSpark

Free tool — runs in your browser

Facebook image resizer

Resize any image to the exact dimensions Facebook expects: feed post 1200x630, plus every other Facebook size. Runs in your browser, nothing uploaded.

Your image

Choose an imageIt is resized on this device and never uploaded.

Your resized preview appears here.

Size

Options

Framing

Fills the frame and crops the overflow — right for profile photos and banners.

Format

PNG for graphics and text, JPEG for photographs.

How to resize an image for Facebook

Facebook shows an image in more places than any other platform here: in the feed, inside a link card, on an event listing and across a page header, each with its own shape. Pick the preset for the place it is going, not a size that is roughly right.

Start from the largest original you have, not a copy already exported for somewhere else. Every export is another lossy pass and they stack up.
Pick the preset you are genuinely posting to. There are 5 Facebook sizes here, starting with the feed post at 1200x630px.
Choose Cover to fill the frame, which trims the long edge evenly from both sides, or Contain to keep the whole picture and pad the gap. Contain pads white, so a photo destined for a dark layout shows a white border.
If you export JPEG, remember it has no transparency: a logo with a transparent background lands on a white square. That is the one case worth going back for PNG.
Check a page cover on a phone as well as a laptop. The 820x312 measurement is the desktop one, and the app shows a narrower slice of it.
For an event, export the 1200x628 version rather than reusing a feed post. Listings render it small, so one short line of type is all that survives.

Every Facebook image size, and the ratio each one forces

Facebook publishes a size per surface. The two headers are the awkward ones, because both are cropped differently depending on the device doing the looking.

Feed post: 1200x630px, a ratio of 1.90:1. Also used for link previews.
Page cover: 820x312px, a ratio of 2.63:1. Crops on mobile, keep detail centred.
Profile photo: 170x170px, a ratio of 1:1. Displayed as a circle.
Story: 1080x1920px. 9:16 full screen.
Event cover: 1200x628px, a ratio of 1.91:1. Shown across event listings.
1200x630 is not only the feed post. It is the shape Facebook reads for a shared link’s preview card, so a single export covers both jobs.
The page cover overlaps your profile photo in its lower left on every layout, so a logo placed there is behind your own avatar.
At 170x170 the profile photo is the smallest source in this family. Thin strokes and small type in a logo will not survive it; use a simplified mark.
The event cover is displayed at a fraction of 1200x628 in listings, so treat it as a poster with one headline rather than a flyer with details.

What goes wrong when the size is off on Facebook

The failures on Facebook are mostly crops you did not choose, because the same file is being asked to work in four different frames.

A link card cropped badly: when the image behind a shared link is square or portrait, Facebook trims it to the card’s wide shape and normally takes the top and the bottom.
A cover designed edge to edge: the safe part of a page cover is the middle. Slogans and logos pushed to the left or right edge are the first thing the mobile crop removes.
A reused Instagram export: a 1080x1080 square dropped into a 1200x630 slot hands the crop decision back to Facebook.

When resizing is not the answer

The tool works on the file you give it, and it cannot recover what a previous upload already threw away. That matters more on Facebook than anywhere else, because so much of what gets reposted here has been through a feed once already.

Starting from an image you downloaded back off Facebook means compressing an already compressed picture. Find the original, even if it is slower.
For a cover that has to work on both layouts, design it at 820x312 with everything important in the middle, then resize. No fit setting rescues a layout that uses the full width.

The rest of the job

You just fixed one post. Now do the month.

The facebook image resizer solves one piece of one post. OctoSpark plans, writes and schedules the whole calendar across every network you use, publishes it for you, and reports what actually performed.

One calendar for every network
Schedule once, publish everywhere
Drafts written in your own voice
See what actually performed

Open the full sign-up page

No card needed. These tools stay free either way.

Frequently asked questions

How this tool works, what it cannot do, and what happens to what you put into it.

What image size does Facebook use?
The sizes this tool offers are Facebook's own recommendations: Feed post at 1200x630px, Page cover at 820x312px, Profile photo at 170x170px. Picking a preset resizes your image to exactly those pixels.
Is my image uploaded anywhere?
No. The file is read, resized and exported by your own browser using a canvas. It never reaches a server, so there is nothing to delete afterwards.
Will resizing make my image blurry?
Scaling down is lossless-looking; scaling a small image up cannot invent detail, so start from the largest original you have. The tool tells you when your source is smaller than the target.
Which format should I export?
PNG for graphics, text and screenshots; JPEG for photographs, where it is far smaller at the same visible quality. Both are offered after resizing.
Is my data private?
Yes. This tool does its work in your browser, so whatever you type, paste or upload stays on your device. Nothing is sent to our servers, which is also why it keeps working if you go offline after the page has loaded.
Is this really free?
Yes. Every tool here is free with no account, no credit card and no usage cap. They exist so that the people who need our scheduling product find us, which only works if the tools are genuinely useful on their own.
Do I need an account?
No. Open the page and use it. An account is only for OctoSpark itself, where you plan, schedule and publish a whole calendar rather than fixing one post at a time.
Can I use the output commercially?
Yes. Anything you produce here is yours, including for client and commercial work. We claim no rights over it and we do not watermark it.