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utils.sbs

Image tool

Social Image Resizer

Resize one image to Instagram, X, LinkedIn and YouTube dimensions.

Runs on-deviceNo sign-upFree
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Social Image Resizer workspace

Workspace

Social Image Resizer

Runs locally

Drop an image here

or · PNG, JPG, WebP

Images are decoded and transformed with the Canvas API in this tab. Nothing is sent over the network.

Your image preview will appear here.

The guide

By the utils.sbs team · Reviewed November 2026 · How we build and review tools

Quick answer

Social Image Resizer is a free browser-based image tool. Resize one image to Instagram, X, LinkedIn and YouTube dimensions. It runs with the Canvas API locally, requires no account and does not upload your files. Open the page, add your input, adjust any options and download the result.

What is Social Image Resizer?

Social Image Resizer is a free browser-based image tool from utils.sbs. Resize one image to Instagram, X, LinkedIn and YouTube dimensions. It is built for quick, focused jobs: open the page, add your input, adjust the options and take the result with you. No account, install or server upload is required.

At a glance

CategoryImage
InputPNG, JPEG, WebP or another browser-decodable image
OutputA processed image or archive in the selected output format
Enginethe Canvas API
ProcessingIn your browser
PriceFree
AccountNot required

How Social Image Resizer works

Images are decoded and transformed with the Canvas API. Filters, resizing and format conversion happen locally, so the source file is never sent over the network.

How to use Social Image Resizer

  1. 1Open Social Image Resizer and add your input.
  2. 2Adjust the options: platform size, fit, padding colour.
  3. 3Run the tool, check the preview or result, and download the output.

When to use Social Image Resizer

  • Prepare an image for a website, email or social post.
  • Convert between modern image formats without a desktop editor.
  • Reduce file size or crop a screenshot before sharing it.

Inputs and options

Platform size
Choose one of 7 options.
Fit
Choose one of 2 options.
Padding colour
Set this value before running the tool.

Limitations

Very large images can hit the device's memory limit, and output quality depends on the browser's canvas encoder.

Privacy and accuracy

Social Image Resizer processes its input in the browser whenever the platform API allows it. Files and values are not uploaded to a server for processing, and the tool does not require an account. For calculations, use the result as a reference and verify important decisions against the source formula or a qualified professional. Read our methodology.

FAQ

Social Image Resizer questions

  • What can I do with Social Image Resizer?

    Resize one image to Instagram, X, LinkedIn and YouTube dimensions. Social Image Resizer is part of the Image shelf on utils.sbs and is designed for quick, one-off tasks.

  • Is Social Image Resizer free to use?

    Yes. Social Image Resizer is free, requires no account, and has no per-file or per-use charge.

  • Are my files uploaded when I use Social Image Resizer?

    No. Social Image Resizer is designed to process your input locally in the browser. Files are not uploaded to a server for processing.

  • What formats does Social Image Resizer support?

    It accepts common browser image formats such as PNG, JPEG and WebP, and lets you download the processed image in the output format you choose.

  • Can I use Social Image Resizer on my phone?

    Yes. Social Image Resizer is responsive and works in modern mobile browsers. Very large files may be limited by the device's available memory.

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