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"An analysis of our commits to major open-source projects in 2025"

It’s that time of the year which gets us all retrospective and here we are with the last year’s open source contribution statistics, or as we all lovingly say, “the one with the charts”.

Let’s take a look at some of the most popular and exciting projects we worked on last year, especially in browsers and web technologies, and how well we did.

Browser Projects

Like previous years, a lot of our efforts go into this space and it’s one we pay keen attention to. Here’s how much Igalians collectively contributed to the projects in this space.

Chromium

Igalia was the second most-active non-Google contributor! This continues the trend from last year, when Microsoft overtook us as the top external contributor to Chromium for the year while we continue to be the largest non-Google contributor cumulatively. We’ve held on to the third spot since then and it’s been really interesting to continue to work with all the different stakeholders in Chromium. For more details on our work in Chromium and related projects, check out our blog post.

Chromium Contributions
Chart data
Contributor Contributions
Microsoft 45.72%
Igalia 19.90%
Intel 7.91%
Opera 5.82%
Bytedance 1.24%
Naver Corporation 1.18%
Saqlain 1.09%
januschka.com 1.02%
island.io 0.92%
Suyeon Ji 0.86%

However, cumulatively until December 2025:

Cumulative Contributions

It’s so amazing to see the activity and collaboration happening in the Chromium project. Cumulatively, we’ve held on to the first spot after Google since we surpassed Opera although Microsoft has been catching up quickly!

Worth noting: Muhammad Saqlain, a Google Summer of Code student working on the Chromium project, ended up being the top unaffiliated contributor to it this year (#7 in non-Google commits)!

WebKit

We’re still the number one contributors (after Apple) to WebKit 💪🏻💪🏼💪🏽💪🏾💪🏿.

Our recent efforts have been focused on lots of invisible internal improvements, most notably the rendering performance improvements as well as the switch from Cairo to Skia. These changes have significantly improved the overall performance and stability of WebKit.

WebKit Contributions
Chart data
Contributor Contributions
Igalia 64.15%
Bun 6.37%
Sony 6.28%
Fady Farag 4.34%
umich.edu 2.56%
Keita Nonaka 2.23%
Red Hat 1.94%
Phipson Lee 1.16%
Google 1.10%
Shopify 1.00%

Firefox

Igalia was the sixth largest non-Mozilla contributor to Firefox in 2025!

Firefox Contributions
Chart data
Contributor Contributions
André Bargull 14.63%
Red Hat 5.99%
Mugurell 4.71%
Birchill 4.39%
mcarare 3.62%
Igalia 3.50%
lando.test 3.45%
yahoo.com 2.45%
Andrew Osmond 2.19%
longsonr 1.88%

André Bargull, long-time independent contributor to Firefox and web standards, and who we collaborate with on various open-source projects, went above and beyond and topped the chart for individual contributors with a whopping 1023 commits to the mozilla-central codebase just this year!

Servo

While not as contributed-to as the major browser projects, Servo remains popular in the developer community, and we’re proud to continue to steward the project.

Servo Contributions
Chart data
Contributor Contributions
Igalia 27.34%
Huawei 8.15%
arcor.de 7.08%
Josh Mathews 5.73%
sagudev 4.78%
Euclid Ye 3.37%
Logius 3.34%
kkoyung.dev 3.05%
Narfinger 2.96%
Ashwin Naren 2.45%

Josh Matthews ended the year as one of the top individual contributors, sponsored by hundreds of small donations put together by supporters of the project through the Servo open collective. We really appreciate all of your contributions to helping make Servo a success! Check out this YouTube video to learn more about how your donations are used to power Servo.

Web Standards

Besides directly working on web browsers, many Igalians contributed to various web standards and organizations. While the immense effort behind standards work is hard to quantify in commit count, sticking with the theme of this post, let’s see how we did in the various projects.

test262

Igalia was the #1 contributor to the JavaScript spec test suite! We’ve continued working with the rest of the maintainers to help nudge it along and make sure newly introduced JavaScript features are well-tested.

test262 Contributions
Chart data
Contributor Contributions
Igalia 39.10%
André Bargull 36.84%
Bocoup 5.26%
Agoric 3.91%
Google 2.41%
Mozilla 1.80%
Bloomberg 1.50%
Bun 0.90%
Microsoft 0.90%
Ron Buckton 0.75%

HTML Specification

Igalia was the #4 contributor to this repository in this time period.

HTML Contributions
Chart data
Contributor Contributions
Google 43.57%
Apple 11.79%
Mozilla 10.71%
Igalia 8.93%
ibiblio.org 5.71%
Bocoup 5.36%
Ladybird 3.21%
Logius 1.07%
Alex Rudenko 0.71%
Rahim Abdi 0.71%

DOM

The DOM is very stable and rarely updated. In the last few years it’s been near two dozen commits on average per year. Igalia is one of the few every year proudly doing the important work of maintaining and improving it.

DOM Contributions
Chart data
Contributor Contributions
Apple 72.00%
Microsoft 8.00%
Google 8.00%
Ladybird 4.00%
JinDX 4.00%
Igalia 4.00%

web-platform-tests

Igalia was the #5 contributor to this repository in this time period.

web-platform-tests Contributions
Chart data
Contributor Contributions
Google 39.54%
Mozilla 17.85%
Apple 9.02%
Microsoft 7.61%
Igalia 6.78%
Intel 1.99%
Bocoup 1.99%
florian.rivoal.net 1.02%
Opera 0.90%
longsonr 0.75%

WebAssembly

Igalia was the eighth most active contributor to this repository last year. Our work was mostly focused on improving the performance and reliability of WebAssembly modules, as well as contributing to the development of new features and standards.

WebAssembly Contributions
Chart data
Contributor Contributions
mpi-sws.org 50.10%
DJ 15.43%
Korea Advanced Institute of Science and Technology 15.05%
Google 3.43%
Wonho Shin 2.10%
presenthee 1.71%
ShinWonho 1.52%
Igalia 1.33%
laposte.net 1.14%
Keith Winstein 0.95%

Accessibility

As you know, we are extremely motivated to make the web more accessible and a lot of the work in this area goes into supporting and maintaining crucial projects. If there were one area we’d wish people paid more love and attention to, it would be this one.

Orca

Igalia was the #1 contributor to Orca in 2025, thanks to our wonderful colleague and long-time maintainer of the project, Joanmarie Diggs.

Orca Contributions
Chart data
Contributor Contributions
Igalia 79.15%
gnome.org 3.58%
pickup.hu 1.47%
filmsi.net 1.47%
Red Hat 1.47%
softcatala.org 0.98%
slmail.me 0.81%
ni.eus 0.65%
googlemail.com 0.65%
bk.ru 0.49%

ARIA

Aria is a special project, both for us and the web at large. Unlike most of the other standards-related repositories, the bulk of the work is done by specialists, individuals, and standards orgs. Igalia was the #6 contributor to this repository in 2025 and we’re proud to be part of this important work.

Aria Contributions
Chart data
Contributor Contributions
Paciello Group 19.39%
w3.org 13.27%
Daniel Montalvo 12.76%
krautzource 12.24%
targetstream.com 8.67%
Igalia 6.12%
Mozilla 4.59%
Rahim Abdi 3.06%
Apple 3.06%
Adam Page 2.55%

Babel

Igalia’s Nicolo Ribaudo was the second most active contributor to this repository in 2025 after Huáng Jùnliàng, the maintainer.

Babel Contributions
Chart data
Contributor Contributions
Huáng Jùnliàng 38.49%
Igalia 28.42%
liuxingbaoyu 18.35%
fisker Cheung 3.96%
magic-akari 2.16%
renovate[bot] 0.72%
cloudcmd.io 0.72%
outlook.jp 0.72%
Eliot Pontarelli 0.36%
NullVoxPopuli 0.36%

GitHub user liuxingbaoyu quickly rose up the ranks to become the third most active and the biggest contributor to Babel this year with a total of 51 commits!

Other projects

There are a number of crucial projects that we’ve focused on this year, including:

  • We had a total of 313 commits merged into the Linux kernel, covering a variety of areas like GPU/display drivers, memory management, scheduling and testing. The effect of our contributions was noticeable in some subsystems more than the others, with a whopping 189 commits among these just to the DRM subsystem for instance! To read in more detail about some of our contributions to the most recent release, check out this blog post.
  • We were the second-largest contributor in commits to GStreamer, the multimedia framework. We maintain the GStreamer ports of WebKit used on desktops and many embedded devices. Our main focus areas in GStreamer this year included video codecs (VVC/H.266 support), Vulkan video acceleration, WebRTC improvements, and enhancements to GStreamer Editing Services (GES).
  • The Mesa 3D Graphics Library is huge and contains open source implementations of pretty much every graphical standard (Vulkan, as mentioned above, for example). This year, we continued our strong contributions to various drivers and components. We ended the year as the fifth largest contributor to the project alongside other major industry players like Intel, AMD, Valve and Google. Our work in Mesa3D has been centred around V3DV for the Raspberry Pi and Turnip for Valve’s upcoming Steam Frame VR headset. To learn more about our work with Valve, check out this blog post.
  • We’ve been very involved in work on GL, and contributing to Khronos Vulkan, OpenGL, and OpenGL ES Conformance Tests, including The Vulkan GL Conformance Test Suite Repository where we ended up as the top contributor for the year.
  • Igalia is the main contributor to libsoup the HTTP client/server library for GNOME, with nearly half of all the commits in 2025.

Conclusion

Remember that as consultants, we work on projects and initiatives sponsored by our amazing clients — perhaps you’d like to work with us. We would like to thank all of our partners from 2025, and while there was a lot we worked on this past year, we look forward to work on even more interesting and exciting projects in 2026!