Open Source

At Yoast, open source is at the heart of what we do. We even dare say that the existence of our company, is partly due to the open source model. We truly believe that with openness and joint efforts we can create better code, products, websites and perhaps even a better world.

That’s why all our plugins are open source, as is our flagship plugin, Yoast SEO. We don’t just open up the source code, but we encourage other people to help us improve it as well. In return, team Yoast also contributes to the betterment of WordPress itself.

Must read articles about Open Source

  • Victory of the Commons »

    In Open Source development, we have to strive for a Nash Equilibrium to allow both individual companies and the community to flourish.

  • WordPress core contributions »

    All our plugins, including our Yoast SEO plugin, are open source. In the true meaning of open source, we don’t just open the …

  • Documenting JavaScript in WordPress »

    JavaScript is an integral part of WordPress and Yoast SEO. Team Yoast is documenting JavaScript in WordPress to make improvement easier.


Recent Open Source articles

Open source design: claiming ownership over design conventions

29 January 2019 | 2 Comments | Luc Kickken

Design sameness Inspiration is at the heart of design. When we – as designers – try to solve a problem we tend to look at what others do. We are often tempted to copy what other companies or websites are doing. This because of their authority: “I’m following Material Design to the letter because Google …

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OPen source design conventions

Reaching higher together: how we all benefit from open source

30 November 2018 | 5 Comments | Marieke van de Rakt

You may know this open source fanatic as WordPress Core Contributor or esteemed speaker on WordCamps and other conferences. Today, Software Engineer & WordPress Consultant Alain Schlesser shares the details of his first experiences with open source and how to learn from, as well as contribute to open source projects. And, he is clear on …

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Open Source

Open source: reducing boundaries and creating opportunities

9 November 2018 | 4 Comments | Marieke van de Rakt

“I love that WordPress allows you to raise your voice, no matter who you are, and where you are located.” That’s just one of the many inspiring quotes of Carole Olinger, our third interviewee in this series on open source. Carole is Community Manager at Plesk, and a true WordPress Community junkie. Learn why she …

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Open Source

Start contributing to open source: Pro tips from Felix

28 September 2018 | 1 Comment | Marieke van de Rakt

Two weeks ago, Joost shared his vision on open source. Today, we introduce yet another WordPress fanatic: Felix Arntz. As a freelancer Felix works part-time for Yoast. Half of that time he’s working on and consulting with the SEO plugin, and the other half Yoast sponsors him to contribute to WordPress core, mainly focusing on …

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Open Source



Yoast SEO Premium for TYPO3 available now!

Today, MaxServ and Yoast proudly present Yoast SEO Premium for TYPO3! With this premium version you can take your TYPO3 website to the next level. Create redirects effortlessly, make your content rank for multiple focus keywords and find out which pages should get more links. In addition to that, we’re also releasing Yoast SEO for …

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yoast seo for typo3 premium


New release: Yoast SEO for TYPO3 2.0

14 February 2018 | 11 Comments | Taco Verdonschot

It’s with great pleasure that we announce the release of Yoast SEO for TYPO3 2.0. This brand new version includes functional and technical changes, making the extension easier to use and more complete! It’s now available on the TYPO3 Extension Repository, on Packagist and Github. The new version has been a team effort, and many people …

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Hot off the press: Yoast SEO for TYPO3 1.3

13 December 2017 | 1 Comment | Edwin Toonen

While Yoast SEO is mostly known for its WordPress plugin, we are in the process of branching out. We support several plugins for other platforms, like Magento 2. One of those platforms, the large-scale open source CMS TYPO3, received a brand new version of Yoast SEO today. In Yoast SEO for TYPO3 1.3, you’ll find …

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