Is my HTML uploaded anywhere?

No. Parsing and extraction run in your browser with JavaScript. Nothing is sent to Irmu's servers, nothing is stored and nothing is logged.

Why is a tag missing from the output?

Only meta tags with a name or property and a non-empty content attribute are included. Tags injected by JavaScript are also absent unless the HTML you pasted was rendered first — that is what a headless-browser fetch gives you.

Can I use this to check my social preview?

Yes. Paste your page source and read the open_graph and twitter objects. Note that each network caches previews, so a fixed tag may take a while to show up when you share the link.

Can I paste a URL instead of HTML?

Not here — a browser cannot fetch arbitrary pages because of cross-origin restrictions, and pretending otherwise would mean quietly proxying your traffic. Fetching pages is what the Irmu API does: it handles rendering, proxies and retries, and returns HTML you can run through this same extraction.

HTML metadata extractor

How it works

What this tool does

Open Graph and Twitter tags are grouped into their own objects with the prefix stripped, so og:title becomes open_graph.title.
Canonical URLs are resolved against the base URL you set, matching what a crawler would follow.
JSON-LD blocks are parsed, and arrays are flattened so each entity is one item.
Useful for auditing social previews before you ship a page, and for building link-preview services.

JSON-LD extractor HTML to JSON

With Irmu

When you also need to fetch the page

A browser cannot fetch arbitrary URLs. Irmu returns the HTML — rendering, proxies and retries included — and you run the same extraction over it.

crawl_and_extract.py

# 1. Fetch the page with Irmu — rendering, proxies and retries handled for you
# 2. Extract the fields you need locally

import os, json, requests
from bs4 import BeautifulSoup

resp = requests.get(
    "https://app.irmu.com/api/crawl",
    headers={"Authorization": f"Bearer {os.environ['IRMU_API_KEY']}"},
    params={"url": "https://store.example.com/products/acme-headphones", "render": "true"},
    timeout=60,
)
resp.raise_for_status()

soup = BeautifulSoup(resp.text, "html.parser")

data = {
    "name": soup.select_one("h1").get_text(strip=True),
    "price": soup.select_one(".price").get_text(strip=True),
    "reviews": [r.get_text(strip=True) for r in soup.select(".review")],
}

print(json.dumps(data, indent=2))

Code examples

Do the same thing in your own pipeline

The equivalent extraction with the standard HTML parser in each language.

# pip install beautifulsoup4

import json
from bs4 import BeautifulSoup

soup = BeautifulSoup(html, "html.parser")

data = {
    "title": soup.title.get_text(strip=True) if soup.title else None,
    "canonical": (soup.find("link", rel="canonical") or {}).get("href"),
    "lang": soup.html.get("lang") if soup.html else None,
    "meta": {
        m.get("name") or m.get("property"): m.get("content")
        for m in soup.find_all("meta")
        if m.get("content") and (m.get("name") or m.get("property"))
    },
}

print(json.dumps(data, indent=2))

HTML metadata extractor

What this tool does

When you also need to fetch the page

Do the same thing in your own pipeline

Questions about this tool

Turn any URL into clean JSON