What size should my Instagram post be?

Instagram recommends 1080×1080px for square posts, 1080×1350px for portrait, and 1080×566px for landscape. Stories and Reels should be 1080×1920px.

Are my images processed privately?

Yes. All image resizing happens in your browser using the Canvas API. Your images are never uploaded to any server.

What size should an Instagram Story or Reel be?

Use 1080×1920 pixels (9:16 vertical) for Stories and Reels so the content fills the whole screen. Keep key elements away from the top and bottom edges, where the UI overlays profile and caption details.

Why does my image look compressed after uploading?

Platforms re-compress images that are not at their preferred dimensions. Exporting at the exact recommended size — such as 1080 pixels wide for Instagram — minimises quality loss from their automatic compression.

What is the difference between crop, fit, and stretch?

Center crop trims edges to fill the new ratio; fit-with-padding scales the whole image and adds bars; stretch distorts it to match. Use crop for centred subjects and fit when you cannot lose any content.

What size should a Twitter/X or LinkedIn header be?

An X/Twitter header is 1500×500 and a LinkedIn personal banner is 1584×396. Keep important content centred, since the edges can be cropped on different screen sizes.

What dimensions should a Facebook or LinkedIn post image use?

Both display landscape images well at 1200×630 pixels (about 1.91:1). A square 1080×1080 also works in-feed. Resize the same source image per platform to keep every post looking sharp.

Social Media Image Resizer

How to use Social Media Image Resizer

Resize images to exact pixel dimensions for any social media platform — preset sizes for Instagram posts (1080×1080), Instagram Stories (1080×1920), Twitter/X header (1500×500), LinkedIn banner (1584×396), Facebook cover (820×312), YouTube channel art (2560×1440), and more. All processing happens in-browser; no image data is sent to any server.

Upload your image by clicking or dragging it to the tool.
Select a platform preset or enter custom width and height dimensions.
Choose crop mode: center crop, fit with padding, or stretch-to-fill.
Adjust focal point if using center crop to keep the important area visible.
Download the resized image in JPG or PNG format.

Your data never leaves your device — 100% private processing.

Social media image size reference 2024

Each platform has specific optimal image dimensions for different placements. Using the wrong size leads to compression artifacts, unwanted cropping, or letterboxing. Instagram feed posts display at 1080px wide, with square (1:1), portrait (4:5), and landscape (1.91:1) supported. Profile pictures display as circles; upload at least 180×180 and center the key element. Twitter/X profile pictures should be at least 400×400; the header is 1500×500. LinkedIn profile photos display at 400×400; the background banner at 1584×396. YouTube thumbnails should be 1280×720 (16:9).

Platform	Placement	Optimal size	Aspect ratio
Instagram	Square post	1080×1080	1:1
Instagram	Portrait post	1080×1350	4:5
Instagram	Story/Reel	1080×1920	9:16
Twitter/X	Post image	1600×900	16:9
LinkedIn	Article header	1200×628	1.91:1
YouTube	Thumbnail	1280×720	16:9

Crop modes and focal point selection

When resizing an image to a different aspect ratio, you must choose how to handle the mismatch. Center crop removes edges from all sides to fill the target ratio — best when the subject is centered. Fit with padding scales the image to fit entirely within the target dimensions and adds colored bars (letterbox/pillarbox) to fill gaps — best when you can't lose any part of the image. Stretch-to-fill distorts the image to exactly match dimensions — acceptable only for abstract backgrounds. For portraits, use face-detection focal point to keep the face centered in the crop area.

Worked examples

Instagram square

Inputs: resize to 1080×1080

Result: 1:1 crop ready for an Instagram feed post

X/Twitter header

Inputs: crop to 1500×500

Result: 3:1 banner sized for the profile header

Glossary

Aspect ratio: The proportional relationship between width and height (e.g., 16:9, 4:5, 1:1).
Letterboxing: Horizontal black/white bars added above and below an image when its aspect ratio is wider than the display area.
Pillarboxing: Vertical bars added to the sides of an image when it's narrower than the display area.
Focal point: The most important part of an image (often a face or product) that should remain visible after cropping.

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Social Media Image Resizer

How to use Social Media Image Resizer

Social media image size reference 2024

Crop modes and focal point selection

Worked examples

Glossary

Related reading

Frequently Asked Questions

Why use Social Media Image Resizer?

Common use cases

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