MetaLink vs Microlink — Simple Metadata vs Headless Browser
When evaluating metadata APIs, the MetaLink vs Microlink comparison often comes down to one question: do you need JavaScript rendering? The two APIs take fundamentally different approaches — and that difference drives everything from pricing to response speed.
How does MetaLink compare to Microlink?
MetaLink fetches HTML directly via HTTP and parses it with a fast Rust HTML parser. It extracts Open Graph tags, Twitter Card data, favicon, title, and description. Because there's no browser involved, it's fast and inexpensive.
Microlink launches a headless Chromium browser to render the page, which means it handles JavaScript-heavy single-page applications (SPAs) but adds significant latency and cost. Microlink also offers screenshots, PDF generation, and a CDN.
Quick Comparison Table
| Feature | MetaLink | Microlink |
|---|---|---|
| Free tier | 1,000 req/mo | 50 req/mo |
| Cheapest paid plan | $9/mo (10,000 req) | ~$39/mo (46,000 req) |
| Top self-serve tier | $79/mo (200,000 req) | ~$500+/mo (custom enterprise) |
| Approach | Static HTTP fetch | Headless Chromium browser |
| JavaScript rendering | No (planned) | Yes |
| Speed | Fast (no browser overhead) | Slower (~1–3s per render) |
| Screenshots | No | Yes |
| PDF generation | No | Yes |
| CDN | No | 240+ edge nodes |
| Tech stack | Rust (Axum) | Node.js |
Key Differences
1. Free Tier: 20x More Requests
MetaLink's free tier is 1,000 requests/month — 20x more than Microlink's 50 requests/month. For most developers evaluating metadata APIs, the free tier determines whether you can actually build and test a prototype without paying.
2. Entry Price
MetaLink starts at $9/month for 10,000 requests. Microlink's Pro plan starts at approximately $39/month for ~46,000 requests. Even factoring in request volume, MetaLink costs about 4x less for basic metadata extraction use cases.
3. Speed: No Browser Overhead
Microlink renders each page with a headless Chromium instance. Browser startup, JavaScript execution, and page rendering add 1–3 seconds per request compared to a direct HTTP fetch. MetaLink's Rust-based static fetch completes in milliseconds.
For high-throughput applications (batch processing URLs, real-time link previews), the latency difference is material.
4. JavaScript Rendering Trade-offs
Microlink's headless browser approach means it can extract metadata from SPAs that set Open Graph tags dynamically via JavaScript — sites where the metadata doesn't exist in the initial HTML response.
MetaLink uses static HTML fetching, which works for the vast majority of public websites (news, blogs, e-commerce, social platforms) because they include metadata in server-rendered HTML for SEO purposes. JavaScript-only metadata is relatively rare.
In practice: If your users primarily share links to well-known websites (news articles, YouTube, GitHub, product pages), MetaLink covers those cases. If you're building a tool that needs to preview arbitrary SPA URLs with client-side metadata injection, Microlink's headless approach is more reliable.
5. Focused vs Feature-Rich
MetaLink does one thing: return structured metadata for a URL. No screenshots, no PDFs, no edge CDN caching. If you only need metadata, you're not paying for features you don't use.
Microlink bundles screenshots, PDFs, a CDN, and structured data extraction into a unified platform. That breadth comes at higher cost.
MetaLink Response Format
{
"url": "https://github.com/vercel/next.js",
"title": "GitHub - vercel/next.js: The React Framework",
"description": "The React Framework. Contribute to vercel/next.js development.",
"favicon": "https://github.com/favicon.ico",
"og": {
"title": "GitHub - vercel/next.js",
"description": "The React Framework",
"image": "https://opengraph.githubassets.com/...",
"url": "https://github.com/vercel/next.js"
},
"twitter": {
"card": "summary_large_image",
"title": null,
"description": null,
"image": null
}
}
When to Choose Microlink
Microlink is the better choice if:
- You need metadata from JavaScript-rendered SPAs where Open Graph tags are set client-side.
- You need screenshots of web pages (for visual link previews or archiving).
- You need PDF generation from URLs.
- You want a CDN-cached response served from edge nodes globally.
- You need to handle arbitrary, unusual URLs where static HTML scraping often fails.
If none of those apply, MetaLink is faster, cheaper, and simpler.
Which metadata API is right for a link preview feature?
Use MetaLink if you're building link previews for a chat app, social platform, or content aggregator where users share standard web URLs (news, products, videos, GitHub links). MetaLink handles these reliably at a fraction of the cost.
Use Microlink if your users share links to web apps with client-side-rendered metadata, or if you need screenshots alongside metadata.
Try MetaLink Free
1,000 free requests/month. No credit card required. Live in under 2 minutes.