Question 1

What is the recommended size for an OG image?

Accepted Answer

Facebook, LinkedIn, Discord and Slack all recommend 1200×630 pixels (1.91:1 aspect ratio). Twitter's large image card uses 1200×628 (close enough), while the smaller summary card crops to 1.91:1 as well. 1200×630 is the universal safe size — use it for every link you share.

Question 2

Can I preview how the image looks on each platform?

Accepted Answer

The generated PNG is exported at the exact 1200×630 size required by every major platform, so the preview is 1:1. Open the downloaded image in another tab to compare side-by-side. Major platforms cache the OG image for a few hours, so the first share of a brand-new URL may show a fallback briefly.

Question 3

What fonts and colors are available?

Accepted Answer

The built-in font selector includes Inter (default), Georgia, Courier (monospace) and Impact. Backgrounds can be solid colors, 2-stop linear gradients or 3-stop gradients. All 12 preset color themes can be edited freely, and the title, subtitle and brand can be repositioned and recolored.

Question 4

How is my data handled?

Accepted Answer

The entire image is rendered in your browser using the HTML5 Canvas API. Nothing is uploaded to any server — when you click Download, the PNG is saved directly from the canvas to your device. There is no watermark and no signup.