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Resize Image for Facebook Cover Photo

Resize photos to Facebook's recommended cover image size of 820×312 pixels for free. Fits desktop and mobile screens perfectly without awkward cropping.

Drop your images here, or browse

JPG • PNG • WebP • GIF — Up to 50MB per image

Processed locally in your browser. No server upload.

Resize Settings

Quick Answer: What does Resize Image for Facebook Cover Photo do?

Resize your banner to 820×312 pixels for Facebook cover photo requirements. Fast, browser-based, zero upload.

Architecture100% Client-Side
Data PrivacyZero Server Upload
Pricing & AccessFree / No Signup
Formats HandledJPG, JPEG, PNG, WebP

About Resize Image for Facebook Cover Photo

Facebook cover photos display at 820×312 pixels on desktop computers and 640×360 pixels on smartphones. If your image isn't sized correctly, Facebook automatically stretches or crops it, making text or subjects look cut off. ReadyForFile's Facebook Cover Resizer scales your photo to 820×312 pixels while maintaining correct proportions.

Features & Capabilities

  • Pre-selected 820×312 Facebook Cover preset
  • Mobile and desktop safe-zone alignment
  • 100% private browser processing

How Client-Side Processing Works Behind the Scenes

Unlike traditional cloud utilities, ReadyForFile executes all file processing directly within your device’s browser sandbox:

1Local Memory Read

The browser loads your document into local device RAM via the HTML5 File & FileReader API.

2Sandboxed Engine

High-performance JavaScript / WebAssembly compiles the output locally without transmitting network packets.

3Direct Blob Download

The generated output is packaged into a local blob: URI and saved directly to your filesystem.

Runs using your browser's built-in processing APIs — nothing is uploaded to a server.

Frequently Asked Questions

What is the official Facebook cover photo size?

Facebook recommends 820 pixels wide by 312 pixels tall for desktop, and displays at 640 pixels wide by 360 pixels tall on mobile.

Resize images to precise dimensions in pixels, percentages, or preset social media aspect ratios.

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