Detect fonts used on a public page — extract font-family stacks from inline styles, style tags, linked same-origin CSS, and @font-face rules. Paste HTML or CSS when fetch is blocked. Free, no signup.
Single-page fetch only (8s timeout, 512 KB HTML cap). Same-origin stylesheets may load when linked in the HTML.
Paste mode on AnyPost marketing CSS surfaces Literata headlines, Nunito Sans body, and JetBrains Mono for code. Use Load example in the tool to pre-fill this snippet.
/* AnyPost marketing tokens (excerpt) */
:root {
font-family: "Nunito Sans", ui-sans-serif, system-ui, sans-serif;
}
.font-headline,
h1, h2, h3 {
font-family: Literata, Georgia, serif;
}
.font-code,
pre,
code {
font-family: "JetBrains Mono", ui-monospace, monospace;
}
Typical families detected
Literata — headlines
Nunito Sans — body UI
JetBrains Mono — code blocksThis is a lightweight typography audit for one HTML document — not a full brand styleguide API. We do not run JavaScript, download every asset on a domain, or guess fonts from screenshots. Cross-origin stylesheets and fonts loaded after page load may be missing; paste CSS or use your browser inspector when you need complete coverage.
The AnyPost website font finder at anypost.md/free-tools/font-finder helps you see which font families a public page declares in HTML and CSS. Enter one https URL and the tool fetches that single document with an eight-second timeout and a 512 KB cap—no third-party proxy—then scans inline style attributes, embedded style blocks, and @font-face rules. When stylesheets are linked from the same origin, it may load up to three sheets within a size limit. Paste View Source or exported CSS in the browser for fonts that only appear in cross-origin sheets or after JavaScript runs; paste mode never uploads your markup to our servers. Output lists primary family names, fallback stacks, declaration sources, and occurrence counts for design audits, rebrands, and agent prompts. It does not crawl your whole site, render pages in a headless browser, or infer fonts from images. Pair with the DESIGN.md generator to document typography for AI coding agents and with the JSON-LD extractor for Schema.org markup on the same URL.
Enter a public https URL and we fetch that single HTML document (eight-second timeout, 512 KB cap, no third-party proxy). The tool scans font-family and @font-face declarations in the markup and, when possible, in a few stylesheets hosted on the same origin. Results show primary family names, fallback stacks, and where each name appeared.
Many sites load fonts from JavaScript, cross-origin CDNs, or external CSS we do not fetch. Web fonts applied only after hydration will not appear. Paste View Source, exported CSS, or a design handoff file in paste mode for a fuller picture.
No. Only one URL per run — the same honest scope as our other free page tools. It is not a sitemap-wide typography audit.
No. Paste mode runs entirely in your browser. Only the optional URL fetch uses our server, with the same limits as our JSON-LD extractor.
Convert and preview turn social post URLs into Markdown for agents. This tool is for marketing and product pages when you need typography facts from HTML and CSS — pair it with the DESIGN.md generator for agent-ready design docs.
Document tokens for agents? DESIGN.md generator · Structured data? JSON-LD extractor