TL;DR
Since Igalia assumed maintenance in 2023, Servo’s community and activity rose sharply in 2025: merged PRs jumped to 3,183 and the yearly contributor count reached 146. Web Platform Tests (WPT) pass rates also improved substantially over 2025, and the project edged toward 35,000 GitHub stars.
What happened
Igalia’s stewardship since 2023 coincided with a marked uptick in activity across the Servo project during 2025. The main Servo repository saw 3,183 merged pull requests in 2025, up from 1,771 in 2024 and far above counts from earlier years. Average monthly contributor figures and a rise in high-volume contributors both increased: the project recorded 146 distinct contributors in 2025, with a growing share submitting multiple PRs and more people crossing 10 or even 100 PRs per year. Servo’s WPT results improved during 2025 as well: the reported Score rose from 48.2% on January 1 to 61.6% on December 31, and the number of passing subtests grew by roughly 469,600. The project also reported organizational growth — administrators, TSC members, maintainers and contributors — has begun releasing official builds (three releases so far), accepted sponsorship tiers and used donations to fund paid contributions and self-hosted CI runners. The team presented about ten talks worldwide during 2025.
Why it matters
- Higher PR and contributor counts indicate a more active, sustained community rather than transient one-off contributions.
- Improved WPT pass rates suggest broader support for web platform features and progress on interoperability.
- Funding and sponsorships are being used to underwrite contributor support and faster CI, which can accelerate development velocity.
- Formal roles, releases and public talks point to maturing project governance and outreach efforts.
Key facts
- Merged PRs by year (main repo): 2018: 1,188; 2019: 986; 2020: 669; 2021: 118; 2022: 65; 2023: 776; 2024: 1,771; 2025: 3,183.
- Average monthly contributors (example values shown in source): 2025: 42.42 (compared with 26.33 in 2024).
- Distinct contributors per year (since reactivation): 2023: 54; 2024: 129; 2025: 146.
- Contributors doing ≥100 PRs in a year: 2023: 1 (2%); 2024: 3 (2%); 2025: 8 (5%).
- Contributors doing ≥10 PRs in a year: 2023: 8 (15%); 2024: 29 (22%); 2025: 43 (29%).
- WPT Score for 2025: 48.2% on Jan 1 → 61.6% on Dec 31 (+13.4%). Passing subtests rose by about 469,600 (from 1,396,647 to 1,866,247).
- GitHub stars: the project is approaching 35,000 stars (source chart noted).
- Project roles listed: 5 administrators, 17 TSC members, 25 maintainers, 18 contributors.
- Releases and outreach: three Servo releases in 2025 and roughly ten public talks globally.
- Sponsorship and funding: four bronze sponsors in 2025; donations used to sponsor a contributor (Josh Matthews) and pay for self-hosted CI runners.
What to watch next
- Whether sponsorship tiers and donor numbers grow in 2026 — not confirmed in the source.
- Expansion of WPT coverage run by Servo (the project is not yet running all WPT tests) — not confirmed as planned in the source.
- Plans for additional official releases or CI changes driven by self-hosted runners — not confirmed in the source.
- Servo presence at FOSDEM later in the month (the author and other Servo contributors said they will be attending).
Quick glossary
- Pull request (PR): A set of proposed code changes submitted to a repository for review and potential merging into the main codebase.
- WPT (Web Platform Tests): A cross-browser test suite that checks compliance and interoperability of web platform features across engines.
- CI (Continuous Integration): Automated processes that build and test code changes to detect integration problems early and speed development.
- TSC (Technical Steering Committee): A governance body that provides technical direction and oversight in many open-source projects.
Reader FAQ
Who has been maintaining Servo since 2023?
Igalia took over maintenance of the project in 2023 (as stated in the source).
How many PRs were merged into the main Servo repo in 2025?
3,183 merged PRs in 2025, per the source.
How did Servo perform on WPT during 2025?
Reported WPT Score rose from 48.2% on Jan 1 to 61.6% on Dec 31, with roughly 469,600 more passing subtests.
Is Servo running all WPT tests?
No — the source notes Servo is not yet running all WPT tests and its reported totals differ from wpt.fyi.
How has the project used donations?
Funding has been used to sponsor contributions from Josh Matthews and to pay for self-hosted runners to speed up CI times.
Servo 2025 Stats 14 January 2026 ENGLISH PLANET SERVO This is a brief blog post to highlight the growth of the Servo community in recent years, particularly since Igalia took…
Sources
- Servo 2025 Stats
- Fine-grained timing and energy profiling in Servo
- Browser Funding After Search Deals · Issue #55
- Ladybird passes the Apple 90% threshold on web-platform …
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