Exact Image Resizer
Instant Local Resizer•Zero Uploads

Facebook Cover Photo Resizer (820x312)

Facebook cover photos display at 820x312 pixels on desktop computers and 640x360 pixels on smartphones. If you upload an arbitrary photo, Facebook cuts off heads or stretches text. Our tool helps you format your cover image to exact Facebook dimensions for clean display across all devices.

100% Client-Side Privacy: Your photos never leave your device. Processed in your browser.

Select image(s) to resize & compress

Drag & drop images here, paste from clipboard (Ctrl+V), or browse

Common Applications

When & Why to Use This Tool

1

Facebook personal profile header covers.

2

Facebook business page and brand community banners.

3

Facebook Group cover banners (1640x856 px).

4

Facebook Event banner covers (1920x1005 px).

User Guide

How to facebook cover photo resizer (820x312) in 4 Easy Steps

01

Upload your horizontal cover picture.

02

Dimensions 820 x 312 px are pre-populated.

03

Select "Cover" mode to fill the banner frame.

04

Click "Resize Image" and download your Facebook-ready cover.

Security Architecture

Why Client-Side In-Browser Processing is Superior

Unlike legacy image resizing websites that upload your photos, signatures, or biometric ID scans to a remote server (where they often sit in unencrypted temporary buckets for hours), Exact Image Resizer operates 100% locally in your browser.

Instant ExecutionZero wait time uploading or downloading heavy files over mobile networks.
Zero Data LeaksConfidential documents, IDs, and signatures never leave your hardware.
Guaranteed SizeHardware-accelerated binary search prevents portal upload rejections.
Got Questions?

Facebook Cover Photo Resizer (820x312) – Questions & Answers

What is the best dimension for a Facebook cover photo?
820 pixels wide by 312 pixels tall on desktop, with essential content kept inside the central 640x312 safe zone for mobile viewing.
Why does Facebook compress cover photos into poor quality?
Facebook’s compression algorithm compresses heavy files aggressively. Uploading an exact 820x312 JPEG under 100KB minimizes Facebook’s re-compression artifacts.
Can I resize Facebook Group covers here too?
Yes, just change the width to 1640 and height to 856 for Facebook Group banners.
Are my personal family photos uploaded anywhere?
No. Everything is rendered locally on your device with complete privacy.
Internal Links

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