Creating OG images for your website or blog? You have several options, and they split into two very different workflows: design-by-hand (Canva) vs code-driven (Vercel OG) vs instant-generation. Here's how they actually compare, including the cost details most comparison posts skip.
Comparison at a Glance
| Feature | OG Image Generator | Canva | Vercel OG |
|---|---|---|---|
| Price | Free (10 exports) / $9-$19/mo unlimited | Free with watermark / $13/mo Pro | Free (included with Vercel) |
| Ease of use | ★★★★★ Type and download | ★★★★ Drag and drop | ★★ Requires coding |
| Automation | API available | No API | Built-in API |
| Templates | 5 built-in | 250,000+ | None (code your own) |
| Watermark | Free tier only | Free tier only | Never |
| Per-image time | ~30 seconds | 5-15 minutes | 0 (auto-generated) |
| Best for | Blogs, newsletters, small teams | One-off campaigns, brand design | Developers, high-volume sites |
When Each Tool Makes Sense
A dedicated OG generator — for consistent output without a design workflow
If you publish blog posts on a schedule, the bottleneck is never the design — it's doing the same 1200×630 layout over and over. A generator turns that into a 30-second task: type the title, pick a template, download. The catch is template flexibility: you're working within the tool's designs, so if you need a completely custom brand layout, you'll fight the tool. That's the trade-off for speed.
Canva — for full design control and non-repetitive work
Canva wins when the image needs to look bespoke: launch announcements, seasonal campaigns, images with custom illustration. Its 250,000+ templates mean you'll find a starting point, and the drag-and-drop editor handles anything. But it's a manual workflow — every new blog post means reopening the design, editing the title, exporting, and uploading. At five minutes minimum per image, it doesn't scale to daily publishing, and the free tier stamps a watermark on exports.
Vercel OG — for developers who want zero manual steps
Vercel OG (built on Satori) generates images at request time from code. Once set up, every page gets a unique OG image automatically — title, description, brand colors, all baked in, with no human in the loop. The cost is real: you're writing JSX, loading fonts explicitly, and debugging why a preview renders wrong. It's the right tool when you have engineering capacity and publish at volume. For everyone else, it's overkill.
The Hidden Costs Nobody Lists
- Canva Pro renews annually — $13/mo is really ~$155/year, and the free tier's watermark is a dealbreaker for anything client-facing.
- Vercel OG has a runtime cost — it's "free" but consumes serverless function invocations; on high-traffic sites that shows up in your Vercel bill as function duration.
- Generator free tiers cap exports — fine for a 4-post blog, annoying at 4 posts/week. The upgrade to unlimited is where the real price shows.
- Maintenance time — every manual workflow carries a hidden tax: updating templates when your brand changes, re-exporting when you find a typo, remembering to include the new post.
How to Choose (Decision Flow)
Answer three questions: (1) Do you publish more than once a week? If yes, skip Canva — the manual loop will eat your time. (2) Can you write code? If yes and you're on Vercel, Vercel OG gives you the most automation for free. (3) Do you need consistent branding more than custom art? If yes, a generator gives you 90% of the result at 10% of the effort. Most content teams land on: generator for daily posts, Canva for special campaigns, Vercel OG only when engineering is already involved.
Bottom Line
All three produce valid 1200×630 OG images — the platforms don't care which tool made the file. The real differentiator is your publishing cadence and who's doing the work. Match the tool to the workflow, not to the hype, and your share cards will be consistent without becoming a full-time job.