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Social media image resizer: one picture, every network’s size

Crop one picture to Instagram, Facebook, X, LinkedIn, Pinterest and YouTube sizes at once, around the point you choose. Free; nothing is uploaded.

By Mellow · Updated

Resize one picture for every network

Opens Mellow Hub. Signing up and connecting your accounts are free; publishing starts with a 7-day free trial. What you made here waits in this browser and goes into your first post, which you can change before anything is sent.

What size should a picture be on each social network?

For a feed post, 1080 × 1350 (4:5) is inside what Instagram, LinkedIn, X, Threads and Bluesky publish; Meta recommends 4:5 for Facebook Feed too, at least 1440 × 1800 for ads. A Story is 1080 × 1920 (9:16), a Pinterest Pin 1000 × 1500 (2:3) and a YouTube thumbnail 3840 × 2160 (16:9). Covers: a LinkedIn profile 1584 × 396, a LinkedIn Page 1512 × 256 and a Facebook Page 851 × 315. Choose a picture above and the point to keep in view, and download every size at once; nothing leaves your device.

Every size, network by network

NetworkForSizeFile limitWhat the network says
InstagramFeed post1080 × 1350 (4:5)8 MBInstagram keeps a photo 1080 pixels wide between 1.91:1 and 3:4; its API, which schedulers use, takes 4:5 to 1.91:1, so 4:5 is the tallest that goes everywhere. Through the API, JPEG up to 8 MB. Image resolution of photos you share on Instagram · Instagram Graph API, IG User media (image specifications)
InstagramSquare post1080 × 1080 (1:1)8 MBInside the 1.91:1 to 3:4 Instagram keeps, and the shape Meta recommends for single-image ads in Instagram Feed. Through the API, JPEG up to 8 MB. Image resolution of photos you share on Instagram · Best practices for aspect ratios
InstagramFeed post from the app1080 × 1440 (3:4)Not publishedThe tallest shape Instagram keeps whole when you post from its app. Its API, which schedulers use, Mellow Hub included, takes 4:5 to 1.91:1. Image resolution of photos you share on Instagram · Instagram Graph API, IG User media (image specifications)
InstagramStory1080 × 1920 (9:16)30 MBMeta’s requirements for Instagram Stories ads recommend 9:16 at 1080 × 1920, at least 600 × 1067, with photos up to 30 MB. Design requirements for Instagram Stories ads
FacebookSquare feed post1080 × 1080 (1:1)Not publishedMeta supports 1:1 in Feed and recommends at least 1080 × 1080 for it in ads. It publishes no size for an ordinary photo post. Best practices for aspect ratios · Recommended minimum image pixel requirements across placements
FacebookFeed post1440 × 1800 (4:5)Not publishedMeta recommends 4:5 for single-image ads in Facebook Feed, at least 1440 × 1800. It publishes no size for an ordinary photo post. Best practices for aspect ratios · Recommended minimum image pixel requirements across placements
FacebookStory1080 × 1920 (9:16)Not publishedMeta recommends 9:16 for Stories and Reels placements, to take the whole screen. Best practices for aspect ratios
FacebookPage cover photo851 × 315 (2.7:1)100 KBA Page cover loads fastest as an sRGB JPG 851 × 315 and less than 100 KB, and must be at least 400 × 150. Facebook Page profile picture and cover photo dimensions
XSingle photo1080 × 1350 (4:5)5 MBX shows a single photo whole when its shape is between 2:1 and 3:4, up to 5 MB, and publishes no pixel size; 4:5 is inside that range. How to post photos or GIFs on X
XSingle photo1080 × 1080 (1:1)5 MBX shows a single photo whole when its shape is between 2:1 and 3:4, up to 5 MB, and publishes no pixel size; 1:1 is inside that range. How to post photos or GIFs on X
XSingle photo1080 × 1440 (3:4)5 MBThe tall end of the 2:1 to 3:4 X shows whole, up to 5 MB. X publishes no pixel size. How to post photos or GIFs on X
LinkedInPhoto in a post1080 × 1350 (4:5)5 MBLinkedIn recommends photos 1080 pixels wide, in any shape from 3:1 to 4:5, at least 552 × 276 and up to 5 MB. Share photos on LinkedIn
LinkedInPhoto in a post1080 × 1080 (1:1)5 MBLinkedIn recommends photos 1080 pixels wide, in any shape from 3:1 to 4:5, at least 552 × 276 and up to 5 MB. Share photos on LinkedIn
LinkedInImage for a Page post with a link1200 × 627 (1.91:1)3 MBFor a Page post with a link, LinkedIn asks for a 1.91:1 image, 1200 × 627, more than 200 pixels wide, as PNG or JPEG up to 3 MB. Image specifications for your LinkedIn Pages and Career Pages
LinkedInProfile cover image1584 × 396 (4:1)8 MBLinkedIn recommends 1584 × 396, as JPG or PNG under 8 MB. Add or change the cover image on your profile
LinkedInPage cover image1512 × 256 (5.9:1)3 MB1512 × 256 is both the minimum and the recommended size, as PNG or JPEG up to 3 MB. Image specifications for your LinkedIn Pages and Career Pages
PinterestPin1000 × 1500 (2:3)20 MBPinterest recommends 2:3, 1000 × 1500, in its specs for standard image Pins, and warns that a Pin taller than 2:3 may be cut off in feeds. Images up to 20 MB on the web. Review ad specs (standard image Pins) · Review Pin specs
YouTubeVideo thumbnail3840 × 2160 (16:9)2 MBYouTube asks for 3840 × 2160 at 16:9, at least 640 pixels wide, as JPG or PNG: up to 2 MB from a phone and 50 MB from a computer, so this file stays under 2 MB. Custom thumbnails need a verified account. Add custom thumbnails on YouTube
TikTokPhoto post1080 × 1920 (9:16)20 MBTikTok’s API takes JPEG or WebP photos up to 1080p and 20 MB each; TikTok gives no size for photo posts made in its app. Content Posting API, media transfer guide · Making a post (photo posts)
ThreadsPhoto post1080 × 1350 (4:5)8 MBThreads publishes no recommended size; its API takes JPEG or PNG 320 to 1440 pixels wide, up to 10:1 and 8 MB. Threads API overview, media specifications
ThreadsPhoto post1080 × 1080 (1:1)8 MBThreads publishes no recommended size; its API takes JPEG or PNG 320 to 1440 pixels wide, up to 10:1 and 8 MB. Threads API overview, media specifications
BlueskyPhoto post1080 × 1350 (4:5)1 MBBluesky asks for no shape. Its documentation limits an image to 1,000,000 bytes on one page and 2 MB on another, so this file stays under 1,000,000 bytes. Posts in depth (images) · Creating a post
BlueskyPhoto post1080 × 1080 (1:1)1 MBBluesky asks for no shape. Its documentation limits an image to 1,000,000 bytes on one page and 2 MB on another, so this file stays under 1,000,000 bytes. Posts in depth (images) · Creating a post

Every figure is from the network’s own page, read on 7 October 2026; the sources are listed at the end. Where a network publishes no pixel size, as X, Threads and Bluesky don’t, and Meta doesn’t for an ordinary Facebook photo post, the table says so, and the resizer makes a size inside what the network does publish. A size that serves several networks is kept under the smallest file limit among them.

Cutting one picture for every network

  • Choose what to keep in view. The sizes run from a 5.9:1 LinkedIn Page cover to a 9:16 Story, so each one loses a different part of the picture. Move the point onto the face or the product, and every size is cut around it.
  • Start from a large picture. The largest size here is the 3840 × 2160 YouTube thumbnail. When a size would be enlarged, its card says how large a picture would make it sharp.
  • Mind the file limits. Bluesky’s documentation gives 1,000,000 bytes per image on one page, a Facebook Page cover loads fastest under 100 KB, and YouTube takes 2 MB from a phone. Each file is made under the limits of the networks it serves.
  • Keep words and faces near the middle of a cover. LinkedIn advises keeping key details away from the edges of a Page cover, which may be trimmed to fit a screen, and on a phone Facebook’s profile picture overlaps a Page cover.

Cutting a wide picture into seamless slides instead? Use the carousel splitter. For a YouTube thumbnail with a headline, the thumbnail maker.

Questions

What is the best image size for all social media?

For a feed post, 1080 × 1350 (4:5): it is inside what Instagram, LinkedIn, X, Threads and Bluesky publish, and Meta recommends 4:5 for single-image ads in Facebook Feed as well. For Stories, 1080 × 1920 (9:16). One picture cannot be every size, which is why the resizer cuts each one from it around the point you choose.

Does Facebook publish a size for photo posts?

Not for an ordinary photo post. For single-image ads in Facebook Feed, Meta recommends 4:5 at no less than 1440 × 1800, and at least 1080 × 1080 for 1:1. A Page cover loads fastest at 851 × 315 and under 100 KB, which is the cover the resizer makes.

What size is an image on X?

X publishes no pixel size. It shows a single photo whole when its shape is between 2:1 and 3:4, and takes photos up to 5 MB; the resizer’s 4:5 and 1:1 posts are inside that range.

Why does the resizer say my picture is enlarged?

Because the part cut for that size has fewer pixels than the size itself, so it is stretched to fill it and looks soft. Each size says how large a picture would make it sharp; a larger picture fixes it.

Is my picture uploaded anywhere?

No. The picture is opened and cut on this page, and the ZIP is made on your own device; nothing is sent to Mellow or anyone else. If you press the button to schedule it, the size you chose is kept in this browser until you are signed in to Mellow Hub, and it goes into your first post only when you use it there.

Sources

Post the picture to every network at once

Mellow Hub sends one post to Instagram, TikTok, YouTube, X, LinkedIn, Threads, Bluesky, Pinterest and Facebook, with each network’s own caption where you want one, and checks each network’s rules before anything is sent. It does not resize pictures, so send the size that suits the networks you post to; the image sizes for every network are on one page.

Schedule on Instagram and TikTok

Every social media image size, with sources

This tool is free and needs no account. Mellow Hub is paid, after a 7-day free trial, and publishes only what you, or an assistant you have authorised, send or schedule.

More free tools

  • LinkedIn text formatter: Bold, italic, underlined text and bullet lists for LinkedIn posts, with a preview of where the post folds.
  • YouTube thumbnail maker: Make a thumbnail from your photo and a bold headline in four layouts, check it at Up next size and export 1280×720 or 4K.
  • Carousel maker: Type one idea per slide and get designed carousel slides: PNGs for Instagram or a PDF LinkedIn shows as a document.
  • YouTube thumbnail tester: See a thumbnail in YouTube’s home feed, search and sidebar at their real sizes, then export it at 1280×720 under 2 MB.
  • Instagram grid maker: Split one image into 3, 6, 9 or 12 posts that line up on your profile, numbered in the order to post them.
  • Instagram carousel splitter: Cut a wide image into seamless carousel slides at 4:5, 3:4 or 1:1, ready to swipe.
  • Social media character counter: Count one post against every network’s limit at once, with X’s weighted count and Bluesky’s graphemes.
  • Social media post checker: Check caption, title and media count against Mellow Hub’s input rules for each destination.
  • Reels and Shorts safe zone checker: See where Instagram Reels and YouTube Shorts cover a vertical video with their buttons and captions, from the figures Meta and Google publish, and download the template.
  • Video checker for Reels, TikTok and Shorts: Check a video’s length, shape, resolution and file size against each network’s limits before you post it.
  • Reels and Shorts cover maker: Pick a frame from your video, add a title, see how the cover sits in the profile grid and export it at 1080 × 1920.
  • Hashtag counter: Count the hashtags and mentions in a caption against each network’s limit, drop duplicates and copy a clean set.
  • Instagram font generator: Turn words into bold, italic, script and other Unicode letter styles for an Instagram bio or caption, and see what styled letters cost screen readers, search and hashtags.

All free tools · Answers about posting and scheduling

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