FreeNo sign-up · Runs in your browser

Get any image to the exact sizea platform wants, without stretching it

Pick a social preset or type your own dimensions, fill the background, and download a JPG ready to post.

What you get

Resize for where it is going.

Most resizers give you a width box and hope for the best. This one knows the sizes platforms actually want and keeps the image from being squashed.

  1. 01

    Social presets

    Square, X, LinkedIn and Instagram story sizes ready to pick.

  2. 02

    Custom dimensions

    Type any width and height in pixels for banners, thumbnails or print.

  3. 03

    Fit, never stretch

    The image keeps its proportions and is centered on the canvas.

  4. 04

    Background color

    Fill the space around the image with a color that matches your brand.

  5. 05

    Gradient fill

    Two colors, horizontal or vertical, for a background that looks designed.

  6. 06

    Private

    Resizing happens in your browser. The file never leaves your device.

How it works

Thirty seconds, start to finish.

  1. Drop in the image

    PNG or JPG. Drag it onto the box or click to browse.

  2. Pick the size

    Choose a platform preset or type custom dimensions. Add a background if the ratio changes.

  3. Download

    Save the resized JPG and post it, embed it or send it.

Why this one

Built for the ten-second image job.

The right frame, every time

A landscape screenshot on a square post gets cropped by the platform in a way you did not choose. Setting the frame yourself, with a background that fits, means the image lands the way you intended.

Social posts

One screenshot, four platforms, four sizes. Done before the coffee cools.

Docs and slides

Standardize every image to the same frame so the page looks designed.

Resizing screenshots for guides?

Guidejar captures them at the right size to begin with.

Record the workflow once with the browser extension. Every step gets a cropped, annotated screenshot, ready to share or export.

See how Guidejar works

FAQ

Questions, answered.

Scaling down keeps the image sharp. Scaling up beyond the original size can soften it, as with any tool, so start with the largest source you have.

No. The image keeps its original proportions and is centered inside the new canvas. Any leftover space is filled with the background color or gradient you choose.

You can upload PNG and JPG files. The resized image downloads as a JPG at full quality.

Yes. Choose "Custom size" and type the width and height in pixels.

No. Resizing runs on a canvas in your browser and the result is downloaded straight to your device.

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Stop repeating yourself,
Try Guidejar today.

The next time someone asks "how do I do this?", send them a guide instead of a meeting invite.

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