What font does posthog.com use?

The typeface on posthog.com is IBM Plex Sans Variable, Source Code Pro and Charter, loaded across 50 @font-face declarations. Every font family, weight and source on this page is read straight from the live CSS — no image guessing, no machine learning, just the rules the browser used.

Primary font

IBM Plex Sans Variable

Total weights

@font-face

Source

Mixed

IBM Plex Sans Variable

Custom web font

The quick brown fox jumps over the lazy dog

Weights loaded (1)

100 700Typography sets the voice of a brand

CSS to use IBM Plex Sans Variable

font-family: 'IBM Plex Sans Variable', Georgia, 'Times New Roman', serif;

@font-face source

woff2https://posthog.com/static/ibm-plex-sans-cyrillic-ext-wght-normal-a17fb865bc3d94f6a76330820580a23b.woff2

Get this font

IBM Plex Sans

Open source

IBM

Free IBM corporate typeface under the SIL OFL.

Get IBM Plex Sans from IBM

Free alternatives if you can't license IBM Plex Sans Variable

InterGoogle Fonts

Neutral alternative without IBM's signature curves.

Open

Source Sans 3Google Fonts

Similar text quality.

Open

ManropeGoogle Fonts

Modern humanist alternative.

Open

Used by 4 selectors on the page

Source Code Pro

Custom web font

The quick brown fox jumps over the lazy dog

Weights loaded (1)

400Typography sets the voice of a brand

CSS to use Source Code Pro

font-family: 'Source Code Pro', ui-monospace, SFMono-Regular, monospace;

@font-face source

woff2data:font/woff2;base64,d09GMgABAAAAABBwABAAAAAAH0QAABAUAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGi4bIBw2BmA/U1RBVEgAgiARCAqtMKN3C4EyAAE2AiQDgTIEIAWGIgcgDAcbvxijopaTVsQJ/uIgE7guiyNiy+LOI4ueZbZoJlN86rk/drzn0PG6iG6EJLN+9G3Wq+6CJF1DQnzVZARbEf9ccuesi3EmyvC0zX+MtGpfG6e0ZCh3HJV3iJH9O1lF6i9zUem6CcLb/TYLGuS9+DSyIAkEYup7UREm8NRNhdw7f66ta6//f+1bffe/72lxWbPQEG2VdGfm2/t35a2KpoW2ibONQyWUwQfVJNrMGh2PhFYhmQ1Z8wC3Pi2HdDHMbKm5N8ZRyBpEcX/e60KBAFgAXQUfiomDQ3ltHg7V5uFQOzQOTSngaoFMGMkfCNSpi90LKGAASKWgcdaLv/vaG0Hy017V4Ja+ZZ3NShXgyfVYhcgPH6ASQSkAembXSoMhimQAJTpDs1aKAQUUgPvU/tK5wH88vNxx/eb/PwBXotGhwG0CAHpfLQdQDp4/pUtT3oxV6jFnTG0njgbwL5kmOAQ4cAbwTPWgxYA6DwDWKeoEQBSRWiXIEM3nEch6+aqgIsDPI7iLp/I63sb7+BAf41N8jq/yE36LP+Gv+Af+JY+nUvBwbucpvJI3814+yEf5JJ/ly/yIk/wxf87f88/0sQ3+Cz5YB0IVTDwCKhAdPSMzKydUoWKVqgEAhWRiycVRiKeUQCWRWhKNZJlSZKHSSgWZBJZGJx2Chk7PgMGIyYTFjM2CwyqDDZcdjwOfEw6UStkBACEAwGEAkwB/K4D0CADlAZAFAPBBgUBQpVvkDZN0SpN1sCp0HUkJGErEFHJ1ptJGHnghCFVm2MgJGjXAPTKrAPbrykzmtmUFrbKsVbkgZ2xcKperFDSs2DtxMCcnrzCQYU0yuYTfl3Z+aq6dZnIM51hpXDatREFawXxOsfwMkjLpqwUWhKzkMsG0S02fjzknaH0A3zXxBXh4wHWNbXuuI55nHMfRMkQGmcjRr4LZ/NQLeRRAPhcWxlIoFIZdpGHBsMT3OhX9b8i89zXEk0l3XoQxijQJkYjDOEARcQ68teXQX9eTEJwaXD2et9F6aBLD7UoNdiGqlXHN6VK2pddBHiN+4MYWHVfnWRSoVpT5pCBb1p9sKj6BLZd+Vn9FmpbUSl3xOZE2JBxfZZ5ftf7x23xvwkl4Bd4KVtx1y0YkvOYtLZv+slGJ7ZeWZkIABjIusXzmsGs8LkjCaaO6mnnBBdU67NswxUmoj+khmbyM+AWprlv7cjKAwNVXTS0YKjXYyzEWO6WYaWEPauOq9Xcnt3XQhawmmmJqsqRZg3NjMtbv7mhlVLSo/VUwEaOMNqGou1HbaULy3FW8CK+UdxzX21afC8Lm2ysxE7O/lPhExZ9y4kWFjS76Kxo75CQ4xznjkn7no+zY4ecbjx5pxmXrNxqMoOXgxJXoDZbwkbe+bPsrenmvJmgUu4SfIEfIE0wiQwJ7sjnbhFcOI892t+wBHS+4ka4xTCSHLq7W4VJOM4zo6laZPtyXzY263jF0Ri2hHOJ4CthOD1pyQLsv11LDfuvWx+uVWdXb7b3cZXXbn38kbnd4NCLOGrW4rNNLehIKG3etVcKsNorZAb29MV0qyfcR+qpa2FZVp+zqbXoAMFRUvW4STSUlUSGBhI1rYMjYnrtRMgHHJa/1E3lsN0AZMBZKiRbEk6VkXV0yKsrY0f6yZnVRLCTaEHAWDA6c7WyrlYiEN9yiYY5SqSvYTbljYraFLtmOKw6M63OMwyXzm3U4x57YLzcyPbEMS9Cb+Tw4DuWuxCeYl5AZIQGmUt54lNiAnzyQbnCALk0GV5tOvOYgP5RHJQRdZnrujjpsBzJQKmg7czxVEOhXJVHuu1P47I1H18Z2l0kMtdpc1bWXHyfvX/Y/eQ+P0H73khxNXgBDJ6lDKBETLjEo461Rz4j4UEln/ZMk9u2o3FCarMtaJ+P+kIRG19uBKuL7JUPOJCYzke0eFFYNUXndnaNnflNtlr+7vEVJ3Z6HRnPj0TP7zv1s7hd7d/EGtZ/9zUNn6Hz41kO4Puq7fxUvdy+3rZlEbbxDeFO2kdTenDyGcBEw3T/DqDscbgp/ZDeBIaal+KXGOca7sQnUFGubRzursV47o81ltSqqrG+MkRlZzCIrxOz1Yswua5ZIpKgS8yrqRQF178Ly3PLB9DSbnCCn2WjF//tuv9p74KVwbdS/OehSb38o+KmVn/JffdPrr/RUVzQH8QnZuZlshATjv6rgJsFsD+2br2so3SmAWvJ4GLAEWbrVhnaPy9DWqoGN5QpJlSE0Lm4uVG/0ObMRrp3DxTK1QiybLcswxhJOyQtTQdFedJDQjjflyJQ+T0UpD00ziHUaDsJZi4EVQQ5Pru/6CuQNR6rlxOxZ6wjyA45AjWpdmxvVtTWqIZETdetpEb6BR8PkCprX6/D5eh7dq5DTMf/nCL49Gk4bCoemVASJ3yXeuD6OdQdfSTbfIAzGmzfVBTtPhaRI7U4OwJH/0hr/PjTVNPXxqCnSiZew6gz+3ox/kOsIqCmWRq9qZjUpkLQGarHl03uMapHIpmH25GXTu22Zchac8kvv4xym0tnsVs+sq8ua3YqCxUFyszFTLLN28YsDpFYKlgpSKv6YmqLnrNpdnqPEazCI02YTOj8wk8dabp9wpnBEsCbMGDPRiGp4YliTUqkJTUxMgh7eyGZh3MR0KmpQJXq/YCU+yzjzDRQLmGKpUkvqDSEcyhyoTpbrzjebc4uLSopLUI45lnDKWJiqsrZoslrdHm17o9qHBk0KuA3LhlublBDcqERmNgbDUAFBAnMG06vWMLPNXIHgiCI16hiZwXcroEoIqOmfNUfbo5vHGPlNEo3ULtXchBjlrp4CWYKIi+FgV1l7QNwm3Q3Z8KMgc5Dd7I1J/riALWXBLuFmYqAFWgKcfrdXQqkPn5D107m5hacbcsSUmoiXAmwOijl5MsLanhZGrdt//MrLcF+a8GsC7+uWtOzTsZ/ZjGDzAGbRmRtTNfYso8JXx7SY4CzMrTJkotJc+fkR/W79LVjn1s5sbupst9paHdrpTc2xUavbanAU/PlDNqvTlikWH9HL7B/kGer6oP9ND/588ldeXVlAQmUc4W2xyrfa61FmJSwJw5aF23WDlJhpy6biwO/+b40861KOyoN/1wZMOjcQZcoRUY7m90/7rD1aH90+xnA3S8xSvdQ8VeMX9kxnkeiGYviVQEGKJZRoU2zABM/axaTAPMFvl9w/4AmjHEjbYO7kRdztz0tXZhgTV7OzitQ+KyTLdSjlEqtEwXdSH4yK6zMytUUMqU0iETqfEH61YohWm9vIA6B/IMJUKKIcvdjvx6LnPfqscEjSIF2TZw4r3Tl5+HpygLAi1AH/Twz7bEsaOOS3Rzcd+8yzXgJJiRYjyWYYfv4JurO8c3JCQCQaYhcuIgbavokGLr83KjwK82PScGlp/wDd1CKiHAUKvT/kSRsza7gOH/tLd51t1ncen7pA8M/N3+AUlrYQEnehmLinENZyTbTr1wsrhOBe/0CMqVhEPvry3BC6Q1NYsHLksw+EgwXb81bm7oCGnIXlm8YGP/KlKWNlm8BaesdyprWBpSh2zUPnyemQOV5Kmy6mef3k/gGGqZvNZRT4sQkdP9Bt9UxFkWsQHZQXf6ybjViA/8+Elv3u/S1jDF/tBe1F90XtRUufsNru3IogkuEgu+5pAGN3gdT/IMAYYFUNqxkBz2hnIYUY/vIOqBz/w9EYxMJkwmnryM5ou5AVPckR26mdMWBw52xkdifauRPZ+b1d5Uvh66QyPuKjqmwwkrWHx9udhYC/jt7ylkYt+cS8hDAl2jSVP3XIFiGiCxVgEW25Mx3bWgrA0vE+hLF07iGFnfi+DUjcty4cQSXkPe61f8b1HIQO9mwxnLWXXVegK67WWU/YbbdPR1qw9hopfXZD9vOMc8mKNPIx3Z9axPht8HYffjsWsJ2+UN2QzJJOyYnj2j0ZbLadYfGqzUY9M52mS0ck1viGiQvKU6HM4sRcbtqqfwlBZyU8JVybCl7uWxeJ5EnIe0bXjqN7V48mFUw7//WFbQ9MIY4/a+2TEyJPhdjhr0lRu2rB3XHb3u/XJbm+PV9y4flW5IVVd3m7LkT+Zyw0gxaxLdQuJBPDTweConF05MkNdBw9++RN5dp1dKRLQt4DePsmbEcDtscttPeq9W1u1NL2qdqq8bEufn/uY1VFNo/nVci5mJen4FrTzuo7yhmAeHDs+H1vU/DNBMv/hP/jLDebgt0H74+Bq8yh7CnfXrvr/d67Bfb6wXMnCcP7h8y1OeuenHkR8bbcDHnBNy+Mu1rA0uG0UxFxcMEkgUP7JfqlChFZ4qZ3XUHHyQzfXV2QJo8hskoENMNJPedcGZVeIWAVH/2H4OBmytyMDCOfU3Jcz7lcTWOfVnPNzDBf7wgyCHnVx2V0Jsyo/870mp0IM+thRai5UWL5+0pLCc5q1pFVuhOtIz4oK1a+fCwsqKOOKdMJYYHzNfvl7uyKj6xQo0YD5Y8afvcX7O9Z7MPCwg+LZZP3ijrh8d2C+wUF93Z2Lvv85vzQmV/YHT/Lk+6+dQ23x5eDTy5uj65a1Hj+9tiquZjgByHgijP3gQ6ogigfwAfaIhBkrZgjTScP8Ojk/iPiMeTI8WIJE0neCDwE+amUNuOGCw9SOoKLaEBEGStmgengmWahafIsLk7ut4m4hGwQD3LpjH4jZO4lAiOZ6oGyPwDKAaqZ8mO6h5yu9epXVU3NQ5UYGlQNAegvCEKupw1yKI5UKqGvPGoS1IAq0CfX6GK4DC3Airrqq8Xd83mN8KzT9DM9lAANlOoorLqKQeNRyyJAibrtyZwB6pS8r7i4MAogO8HBKYDOULywEqAetzTahxpQg9w9v79v4QAQr78cU2LDkCzNb+lafwkA75aasQwA3ltVZnOq1/8qHcyV/OhQKAUBf+JJFUphRyhkmMH9IRVCFqp2JQToPPSKeGgIK2WJYKCJs3Do07P5YumKCFw9dLUoLrCQuaYFSuBQDljiajUnPno+CSPvGxYNIzMS2miWqoibGCRXERL684igZ4jU6OcTyrQSO7EIK7AcG3EDZ0AAQvEGWzOSZdemoQEIEtAgzgBwExAFEhoZDVTIxN+BGnZQAhmdojDQh5GxKNCPNo2wMRONmi4SVUawmg0dLc9dWycEqoXYg3JEBIQEqLg5F3WFVWpRrgqhMX06dIomf3Qqi2YVWrRrzaiMIipbU6ZanTobqXxMPaMCnjIo8QCiKVPFkoHaY9fpVIsKbduhSrvueJ1Ri2aUdU5lmqqoWQwYFV1pVjEni4MnVgrrES0ql3Frb0ll0KuTbbVdnRqmmsqj1+jSqEw7IZ43Pl5BDaan46LGuzN3NmI2DTccf3bTUXPyeSWnQ50/plL5ilqW06mCkNidE+9qHk1GrUmZBlVkUe2pl4UQCUjnyUj3o4DQ2uEOPatDBZtXpxUj4lmQ04h3VU5eg8/FyC5HFfZMFp3KNKpTAdXCvqQZHoM9S51AAwCE5qcp9eJhXgA=

Get this font

Source Code Pro

Commercial

Looks like a custom or commercial web font. Try MyFonts for licensing.

Search for Source Code Pro

Free alternatives if you can't license Source Code Pro

JetBrains MonoGoogle Fonts

Modern free mono tuned for code.

Open

IBM Plex MonoGoogle Fonts

Distinctive alternative with strong personality.

Open

Fira CodeGoogle Fonts

Mono with programmer ligatures.

Open

Used by 3 selectors on the page

Charter

Custom web font

The quick brown fox jumps over the lazy dog

Weights loaded (2)

400Typography sets the voice of a brand

700Typography sets the voice of a brand

CSS to use Charter

font-family: Charter, Georgia, 'Times New Roman', serif;

@font-face source

eothttps://res.cloudinary.com/dmukukwp6/raw/upload/charter_regular_webfont_f2e9d7f011.eot

Get this font

Charter

Commercial

Looks like a custom or commercial web font. Try MyFonts for licensing.

Search for Charter

Free alternatives if you can't license Charter

LoraGoogle Fonts

Workhorse free serif with great screen rendering.

Open

Source Serif 4Google Fonts

Cleaner contemporary alternative.

Open

MerriweatherGoogle Fonts

Heavier sibling for editorial body copy.

Open

Used by 1 selector on the page

Computer Modern

Custom web font

The quick brown fox jumps over the lazy dog

Weights loaded (1)

400Typography sets the voice of a brand

CSS to use Computer Modern

font-family: 'Computer Modern', Georgia, 'Times New Roman', serif;

@font-face source

woffhttps://posthog.com/fonts/cmunti-webfont.woff

Get this font

Computer Modern

Commercial

Looks like a custom or commercial web font. Try MyFonts for licensing.

Search for Computer Modern

Free alternatives if you can't license Computer Modern

LoraGoogle Fonts

Workhorse free serif with great screen rendering.

Open

Source Serif 4Google Fonts

Cleaner contemporary alternative.

Open

MerriweatherGoogle Fonts

Heavier sibling for editorial body copy.

Open

Used by 1 selector on the page

Fairytale

Custom web font

The quick brown fox jumps over the lazy dog

Weights loaded (1)

400Typography sets the voice of a brand

CSS to use Fairytale

font-family: Fairytale, Georgia, 'Times New Roman', serif;

@font-face source

woff2https://posthog.com/fonts/fairytale_serif-webfont.woff2

Get this font

Fairytale

Commercial

Looks like a custom or commercial web font. Try MyFonts for licensing.

Search for Fairytale

Free alternatives if you can't license Fairytale

LoraGoogle Fonts

Workhorse free serif with great screen rendering.

Open

Source Serif 4Google Fonts

Cleaner contemporary alternative.

Open

MerriweatherGoogle Fonts

Heavier sibling for editorial body copy.

Open

Used by 1 selector on the page

Open Runde

Custom web font

The quick brown fox jumps over the lazy dog

Weights loaded (4)

400Typography sets the voice of a brand

500Typography sets the voice of a brand

600Typography sets the voice of a brand

700Typography sets the voice of a brand

CSS to use Open Runde

font-family: 'Open Runde', Georgia, 'Times New Roman', serif;

@font-face source

woff2https://res.cloudinary.com/dmukukwp6/raw/upload/v1774793747/fonts/OpenRunde-Regular.woff2

Get this font

Open Runde

Commercial

Looks like a custom or commercial web font. Try MyFonts for licensing.

Search for Open Runde

Free alternatives if you can't license Open Runde

LoraGoogle Fonts

Workhorse free serif with great screen rendering.

Open

Source Serif 4Google Fonts

Cleaner contemporary alternative.

Open

MerriweatherGoogle Fonts

Heavier sibling for editorial body copy.

Open

Used by 1 selector on the page

Squeak

Custom web font

The quick brown fox jumps over the lazy dog

Weights loaded (1)

700Typography sets the voice of a brand

CSS to use Squeak

font-family: Squeak, Georgia, 'Times New Roman', serif;

@font-face source

woff2https://posthog.com/fonts/squeak-bold-webfont.woff2

Get this font

Squeak

Commercial

Looks like a custom or commercial web font. Try MyFonts for licensing.

Search for Squeak

Free alternatives if you can't license Squeak

LoraGoogle Fonts

Workhorse free serif with great screen rendering.

Open

Source Serif 4Google Fonts

Cleaner contemporary alternative.

Open

MerriweatherGoogle Fonts

Heavier sibling for editorial body copy.

Open

Used by 1 selector on the page

Squeak Webfont

Custom web font

The quick brown fox jumps over the lazy dog

Weights loaded (1)

400Typography sets the voice of a brand

CSS to use Squeak Webfont

font-family: 'Squeak Webfont', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

@font-face source

woff2https://posthog.com/fonts/squeak-bold-webfont.woff2

Get this font

Squeak Webfont

Commercial

Looks like a custom or commercial web font. Try MyFonts for licensing.

Search for Squeak Webfont

Free alternatives if you can't license Squeak Webfont

InterGoogle Fonts

Safe, neutral free sans-serif that works in nearly any layout.

Open

ManropeGoogle Fonts

Slightly warmer humanist alternative.

Open

DM SansGoogle Fonts

Cleaner geometric sibling.

Open

Used by 0 selectors on the page

Consolas

Unknown source

The quick brown fox jumps over the lazy dog

Weights loaded (1)

400Typography sets the voice of a brand

CSS to use Consolas

font-family: Consolas, ui-monospace, SFMono-Regular, monospace;

Get this font

Consolas

Commercial

Looks like a custom or commercial web font. Try MyFonts for licensing.

Search for Consolas

Free alternatives if you can't license Consolas

JetBrains MonoGoogle Fonts

Modern free mono tuned for code.

Open

IBM Plex MonoGoogle Fonts

Distinctive alternative with strong personality.

Open

Fira CodeGoogle Fonts

Mono with programmer ligatures.

Open

Used by 1 selector on the page

Arial

System font

The quick brown fox jumps over the lazy dog

Weights loaded (1)

400Typography sets the voice of a brand

CSS to use Arial

font-family: Arial, Georgia, 'Times New Roman', serif;

Get this font

Arial

System font

Monotype

Bundled with Windows and macOS.

Get Arial from Monotype

Free alternatives if you can't license Arial

InterGoogle Fonts

Sharper alternative with proper hinting.

Open

DM SansGoogle Fonts

Cleaner geometric feel.

Open

RobotoGoogle Fonts

Familiar substitute on Android.

Open

Used by 4 selectors on the page

Impact

System font

The quick brown fox jumps over the lazy dog

Weights loaded (1)

400Typography sets the voice of a brand

CSS to use Impact

font-family: Impact, Georgia, 'Times New Roman', serif;

Get this font

Impact

System font

System font — already available on the visitor's device.

About system fonts

Free alternatives if you can't license Impact

LoraGoogle Fonts

Workhorse free serif with great screen rendering.

Open

Source Serif 4Google Fonts

Cleaner contemporary alternative.

Open

MerriweatherGoogle Fonts

Heavier sibling for editorial body copy.

Open

Used by 4 selectors on the page

Comic Sans MS

System font

The quick brown fox jumps over the lazy dog

Weights loaded (1)

400Typography sets the voice of a brand

CSS to use Comic Sans MS

font-family: 'Comic Sans MS', Georgia, 'Times New Roman', serif;

Get this font

Comic Sans MS

System font

System font — already available on the visitor's device.

About system fonts

Free alternatives if you can't license Comic Sans MS

LoraGoogle Fonts

Workhorse free serif with great screen rendering.

Open

Source Serif 4Google Fonts

Cleaner contemporary alternative.

Open

MerriweatherGoogle Fonts

Heavier sibling for editorial body copy.

Open

Used by 1 selector on the page

How posthog.com loads its fonts

Get Font Info inspected the homepage of posthog.com and parsed 0 stylesheets totalling 0 KB. Inside those stylesheets we found 50 @font-face declarations — the rules a browser uses to download and register a custom typeface. The primary typefaces are served from mixed, and 33 CSS rules reference them across the page.

Check the font on a specific element

Open the live inspector and hover any text on posthog.com to see the exact font, weight, size and line-height for that element.

Open live font inspector for posthog.com

Frequently asked questions

What font does posthog.com use?

posthog.com uses IBM Plex Sans Variable, Source Code Pro and Charter as its primary typefaces. These fonts are loaded from a self-hosted webfont, an unknown source and the operating system and applied across 33 CSS rules on the homepage.

Where does posthog.com load its fonts from?

posthog.com loads its fonts from a self-hosted webfont, an unknown source and the operating system. Get Font Info detected 50 @font-face declarations across 0 stylesheets on the live page.

What weights of IBM Plex Sans Variable does posthog.com use?

posthog.com loads IBM Plex Sans Variable in 5 weights: 100 700, 400, 500, 600, 700. If you want to match the look, request the same weights from your font host so you only ship what's actually used.

Can I use the same font as posthog.com on my website?

Yes — once you know the font name, you can load it from the same source. If IBM Plex Sans Variable isn't a fit (licensing, weight selection, look-and-feel), close alternatives include Inter, Source Sans 3 and Manrope. Use the CSS snippet on this page as a starting point.

Is the font on posthog.com free to use?

These fonts are self-hosted webfonts. They may be licensed commercially from a type foundry, custom-made for the brand, or freely available — you would need to identify the typeface and check its license at the foundry.

See fonts used by other sites

Compare the typography on posthog.com with how other well-known sites load and use their fonts.

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About this page

This page lists the fonts loaded by the homepage of posthog.com. Get Font Info reads the live CSS — every @font-face rule, every font-family declaration — so you see the exact fonts the browser used, not an image-based guess.

More guides: find the font on any website, identify the typeface on a webpage, check what font a website is using, or URL font checker.