5 Free OG Image Generators Compared (2026)
There are more OG image tools than ever — but most either require a subscription, have a watermark on the free tier, or produce generic-looking results. Here's an honest comparison of the five best free options in 2026.
What to Look for in an OG Image Generator
Before the comparison, here are the criteria that matter:
- Free with no watermark — non-negotiable for production use
- 1200 × 630 output — the standard size for all platforms
- Custom branding — domain, colours, logo
- Dynamic/URL-based — generate unique images from parameters, not manual uploads
- No signup required — some tools gate features behind accounts
- Saved settings — so you don't re-enter branding every time
1. Keynou OG Image Generator
URL: keynou.com/tools/misc/og-image-generator
Free? Yes — completely free, no account required.
How it works: Enter your title, description, and category. Choose from preset colour schemes or set custom hex codes. Your branding (domain, logo letter, tagline, accent colours) saves automatically to your browser via localStorage — no account needed.
You get a dynamic URL that generates a unique image for any title/description combination, plus a direct PNG download.
Best for: Bloggers, developers, small teams. Especially useful in Next.js projects — paste the URL pattern directly into generateMetadata.
Limitations: One design template (dark gradient). No image upload or photo backgrounds.
Verdict: ✅ Best for URL-based dynamic images with saved branding. No friction.
2. og-image.vercel.app (Vercel OG Playground)
URL: og-image.vercel.app
Free? Yes — open source.
How it works: Vercel's official demo for their @vercel/og library. Pick from a few prebuilt templates, enter text, and get a PNG. Also lets you write custom JSX templates directly in the browser.
Best for: Developers who want to prototype custom OG image designs before deploying their own /api/og route.
Limitations: Very developer-focused — no saved branding, no category presets, bare-bones UI. The official templates are minimal. Not practical for non-developers.
Verdict: ✅ Great for developers testing @vercel/og syntax. Not for general use.
3. Placid
URL: placid.app
Free? Free tier with watermark on generated images. Paid plans start at $29/month.
How it works: Visual template builder with drag-and-drop design. Set up a template, connect it to your CMS via API, and images generate automatically per post. Very polished results.
Best for: Marketing teams, larger publications, anyone who needs photographic backgrounds, custom layouts, or complex multi-element designs.
Limitations: The free tier adds a Placid watermark — unusable for production. Paid plans are expensive for individual bloggers. Requires API integration.
Verdict: ⚠️ Excellent product, but the free tier isn't actually free for production use.
4. Bannerbear
URL: bannerbear.com
Free? Free tier gives 30 images/month with API access. Paid from $49/month.
How it works: Template-based image generation via API. Design a template in their visual editor, then call the API with dynamic text/image values to generate images at scale. Used by large media companies.
Best for: High-volume publishing (news sites, SaaS blogs), teams with developer resources, anyone who needs image generation integrated into a content pipeline.
Limitations: 30 images/month on free tier — that's roughly one image per day. API-first approach is overkill for small blogs. Watermark-free only on paid plans.
Verdict: ⚠️ Powerful for enterprise use. Not practical for small sites on the free tier.
5. Canva
URL: canva.com
Free? Yes — fully free plan with no watermark.
How it works: Visual design tool with OG image templates. Search for "Open Graph" or "Social Media Preview" in the template search. Drag-and-drop editor, tons of templates, photo backgrounds, custom fonts.
Best for: Non-developers who want highly customised, visually rich designs. Great if you only need OG images occasionally and want full creative control.
Limitations: Not dynamic — every image is a manual export. You can't generate unique images per post from a URL. For a 50-post blog, you'd design 50 individual files. Also: the mobile app is better than the web version for this use case.
Verdict: ✅ Best for one-off designs. Not scalable for large sites.
Comparison Table
| Tool | Free? | Dynamic URL | Saved Branding | No Signup | Custom Colours |
|---|---|---|---|---|---|
| Keynou | ✅ Fully free | ✅ Yes | ✅ Auto-saved | ✅ Yes | ✅ Yes |
| Vercel OG | ✅ Open source | ✅ Yes | ❌ No | ✅ Yes | ⚠️ Code only |
| Placid | ⚠️ Watermark | ✅ Yes | ✅ Yes | ❌ Signup | ✅ Yes |
| Bannerbear | ⚠️ 30/mo limit | ✅ Yes | ✅ Yes | ❌ Signup | ✅ Yes |
| Canva | ✅ Fully free | ❌ No | ✅ Brand kit | ❌ Signup | ✅ Yes |
Which Should You Use?
For a personal blog or small site: Keynou — free, dynamic, branding saved, no signup.
For a developer building their own template: Vercel OG Playground to prototype, then deploy your own /api/og.
For a marketing team that needs pixel-perfect custom designs: Placid or Bannerbear (budget for paid plan).
For one-off promotional images: Canva.
Related Resources
- What is an OG image?
- OG image best practices
- Dynamic OG images without design tools
- OG Image Generator Tool
- Image Compressor — compress your exported OG PNGs
