Skip to content
DevUtil

OG Image Generator - Create Open Graph Images Online

Background
Text Colour
Text Alignment

About the OG Image Generator

Open Graph images are the thumbnails shown when your URL is shared on Facebook, Twitter, LinkedIn, Slack, and other platforms. A good OG image increases click-through rates by making your shared link stand out in a feed full of text posts.

This tool creates OG images at the standard 1200x630 resolution using the Canvas API in your browser. Choose a solid colour background or upload your own image, add a headline and optional subtitle, adjust the font size and alignment, and download the finished PNG.

How to Use

The canvas preview at the top shows your image in real time. Set a background colour or upload an image. Type your headline and optional subtitle. Adjust font size with the slider and pick your text colour and alignment. When you are happy with the result, click download to save the PNG.

Tips for Good OG Images

  • Keep text short. One headline of 3-8 words works best. It needs to be readable at small sizes in a social feed.
  • Use high contrast. White text on a dark background or dark text on a light background. Avoid low-contrast combinations.
  • Leave margins. Some platforms crop the edges slightly. Keep important text away from the edges.

Frequently Asked Questions

What size should an OG image be?
The recommended size is 1200x630 pixels with a 1.91:1 aspect ratio. This is the standard used by Facebook, Twitter, LinkedIn, and most other platforms. This tool generates images at exactly that size.
Can I upload a background image?
Yes. Use the file drop zone under the background section to upload a photo or graphic. It will be scaled to fill the 1200x630 canvas. Alternatively, pick a solid background colour.
What file format is the output?
The image is exported as a PNG file. PNG is the best choice for OG images because it supports transparency and is universally supported by social platforms.
Does this tool send my images to a server?
No. Everything runs in your browser using the HTML Canvas API. Your images and text never leave your machine.