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Bethemesh
Images & graphics

Social media image resizer

Pick a platform format — post, story, profile picture, cover, thumbnail — then crop to the right aspect ratio or add bars, and download the image at the exact size.

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Add a PNG, JPEG, or WebP image. The file stays on your device and all edits run locally in your browser.

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How does this tool work?

Every social network displays images in its own proportions: square or portrait on Instagram, very wide for a LinkedIn cover, full-screen vertical for a story or a TikTok video. A badly sized image gets cropped automatically by the platform, often in the wrong place. This tool applies the recommended formats and lets you decide which part of the image is kept.

A format is defined by two things: an aspect ratio, the relationship between width and height (4:5 for an Instagram portrait post, 16:9 for a YouTube thumbnail), and a pixel size that determines sharpness. The tool first locks the crop frame to the chosen ratio, then resizes the result to the exact recommended size.

"Crop to fill" mode fills the whole format: whatever extends beyond it is cut off. The frame stays locked to the right ratio, but you can move and enlarge it to keep your subject, something an automatic center crop cannot do.

"Whole image with bars" mode keeps the entire image: it is scaled down to fit the format, and the remaining space is filled with a color of your choice. This is how you post a panoramic photo as a story without losing anything, or a poster whose edges must all stay visible.

For a profile picture, most platforms display the image in a circle while the file stays square: anything in the corners will be hidden. Keep the face or logo well centered in the frame.

The dimensions offered are those recommended by the platforms’ help pages and up-to-date specification guides (checked on October 3, 2026). They change from time to time: when in doubt, a larger file with the same ratio is still accepted and will be scaled down by the platform.

How to use this tool

  1. Upload your image

    Photo, graphic or screenshot in PNG, JPEG or WebP; it stays on your device.

  2. Choose the platform and format

    Post, story, profile, cover, thumbnail: the target size appears next to each format.

  3. Frame it or add bars

    Move the frame onto the subject, or keep the whole image with a background color.

  4. Apply and export

    The image is set to the exact size; choose the file format and quality before downloading.

Recommended dimensions (October 2026)

Width × height in pixels, with the matching aspect ratio:

Instagram — portrait post

1080 × 1350 px (4:5)

Instagram — story and Reel

1080 × 1920 px (9:16)

Facebook — Page cover

851 × 315 px

LinkedIn — profile cover

1584 × 396 px (4:1)

X — header banner

1500 × 500 px (3:1)

YouTube — thumbnail

1280 × 720 px (16:9)

Pinterest — pin

1000 × 1500 px (2:3)

Link preview (Open Graph)

1200 × 630 px (1.91:1)

Use cases

Social media management

Turn one visual into a post, a story and a cover without going back to design software.

Professional profiles

Prepare a sharp, centered profile picture and a LinkedIn or X banner at the right size.

Video creators

Produce 16:9 YouTube thumbnails and vertical covers for TikTok or Reels.

Link sharing

Create the Open Graph preview image (1200 × 630) shown when a link is shared.

Examples

Vacation photo as an Instagram post

The portrait frame is placed on the subject; the 4:5 format takes up more height in the feed than a square.

Input

4000 × 3000 px photo, "Portrait post" format

Result

1080 × 1350 px (4:5)

YouTube video thumbnail

Same ratio: nothing is cut, the image is simply scaled down to the recommended size.

Input

1920 × 1080 px screenshot, "Video thumbnail" format

Result

1280 × 720 px (16:9)

Landscape story with nothing lost

The panorama spans the width of the screen, with black bars above and below.

Input

3000 × 1000 px panorama, "Whole image with bars", black background

Result

1080 × 1920 px

LinkedIn banner

The very elongated format keeps only a horizontal strip: put your text or tagline there.

Input

1600 × 900 px graphic, "Cover photo" format

Result

1584 × 396 px (4:1)

Tips and best practices

  • Start from the largest image you have: scaling down keeps sharpness, scaling up loses it.
  • For a cover or banner, keep text and logos away from the edges: mobile layouts often trim the sides.
  • Export photos as JPEG or WebP, and graphics with fine text or flat colors as PNG.
  • A story leaves little room at the top and bottom, under the app’s interface: center the important information.
  • Create every variant from the original rather than resizing an image you have already cropped.

Sources and references

Frequently asked questions

What is the right size for an Instagram post?

1080 × 1080 px for a square, 1080 × 1350 px for the 4:5 portrait format, which takes up the most space in the feed, and 1080 × 566 px for landscape. Stories and Reels use 1080 × 1920 px, in 9:16.

What size is a YouTube thumbnail?

1280 × 720 px, a 16:9 ratio, as YouTube Help recommends. Prepare the channel banner at 2560 × 1440 px with the key elements in the middle, because only a central strip is visible on mobile.

What dimensions for a Facebook or LinkedIn cover?

The tool offers 851 × 315 px for a Facebook cover and 1584 × 396 px for a LinkedIn profile cover. These formats are very elongated: plan a visual whose essentials fit in the central strip.

Crop or add bars: which should I choose?

Crop when the image can lose part of its edges without harm, like a portrait or a landscape. Add bars when the entire image must stay visible, like a poster, an infographic or a screenshot.

Why is my profile picture cut into a circle?

Facebook, Instagram, LinkedIn, X and YouTube display profile pictures in a circle, even when the file is square. The corners are hidden: put the face in the center and leave a little margin.

Does the image lose quality?

Scaling down keeps the image sharp. Quality depends mostly on the export format: set the JPEG or WebP quality in the Export panel, where the estimated file size is shown before downloading.

Are my images uploaded online?

No. Cropping and resizing happen in your browser. No image is sent to or stored on a server, which matters for unpublished or confidential visuals.

Are the dimensions up to date?

They were checked on October 3, 2026 against the platforms’ help pages and recent specification guides, listed as sources. Social networks change them occasionally: a larger file with the same ratio is generally still accepted.

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