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FontsightvsFontanello

This asks for Proxima Nova.

The stylesheet asks for Proxima Nova, which never loads, so the browser draws Gloock.

Fontsight saidGloock, the face actually drawn✓

Fontanello saidProxima Nova✗

Fontanello names the first font in the CSS. Fontsight names the one the browser actually drew, and does much more with it.

Checked October 24th, 2026 from both store listings and packages, and tested side by side.

At a glance.

What each one does, and what it asks of you.

FontsightFontanello
PriceFreeFree
AccountNoneNone
Install warningWhat Chrome asks you to allowNoneRead and change all your data on all websites
Runs onThe tab you point it atEvery page and frame, from the moment it loads
Sends data off your deviceNoNo
Names the face actually drawnNot just the first name in the CSS
Names a renamed font, from its file
Flags faked bold and italic
Contrast ratio
Free look-alikes, ranked by measurement
Try fonts on the live page
Every font on the page, in a side panel
Last updated on Chrome2026April 2024

Same page, three hard cases.

One test page where the CSS and what’s drawn disagree. We pointed both at the same text and wrote down what each said.

  1. 01 · A renamed font

    font-family: "brand-serif", Georgia, serif; /* the file is Gloock */

    Drawn in Gloock

    Fontsight said
    Gloock, read from the file, “as brand-serif”
    Fontanello said
    brand-serif

  2. 02 · A font that never loads

    font-family: "Proxima Nova", "Helvetica Neue", Arial, sans-serif;

    Drawn in Helvetica Neue

    Fontsight said
    Helvetica Neue, installed here, not loaded by the page
    Fontanello said
    Proxima Nova, which never loaded

  3. 03 · A faked bold

    font: 800 34px Inter; /* only Inter 400 is loaded */

    Drawn in Inter 400, thickened to look like 800

    Fontsight said
    Inter 800, flagged: faux bold, only 400 is loaded
    Fontanello said
    Inter, “800 (extra bold)”, no warning

Where Fontanello is good.

Fontanello does one small thing quickly, and it stays out of the way until you right-click.

  • It’s tiny: 16 KB, with nothing to set up.
  • It sends nothing off your device.
  • It shows WCAG contrast with an AA or AAA rating, right in the menu.
  • It’s open source, under the MIT licence, and on Firefox and Edge too.

Questions, answered.

Is Fontsight a good Fontanello alternative?

Yes. Both are free and need no account. Fontsight names the face actually drawn instead of the first name in the CSS, reads files to name renamed fonts, flags faked bold, finds free look-alikes and lets you try fonts on the page. And it shows no install warning, because it can’t see a site until you point it at one.

Why does Fontanello name a font the page doesn’t use?

It reports the first family in the CSS font-family list. When that font isn’t loaded, the browser draws the next one, but Fontanello still names the first. In our test it said Proxima Nova for text drawn in Helvetica Neue.

Is Fontanello still maintained?

Its Chrome version was last updated on April 22nd, 2024.

Is Fontsight free?

Yes. No account, no analytics, nothing to buy.

Sources: Fontanello on the Chrome Web Store, fontanello.app, and its published package, read on October 24th, 2026. Fontanello is a trademark of its owner. Something out of date? Tell us.

See what the page really drew.

Point Fontsight at any text. It names the face that rendered, finds a free look-alike, and lets you try it on the page.

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