Servo

August in Servo... 📈 📊 CSS grid 🖱️ 🫵 interactive selections 🔙 ↪️ navigation 🩹 🦮 accessibility roles and geometry

https://servo.org/blog/2026/10/09/august-in-servo/

Servo had a busy end of August and start to September. Here are just a few highlights from the last few weeks:

• Added TextEvent support
• Implemented support for popup sandboxing
• Mapped role attribute into the accessibility tree
• Queued session history traversals for more correct back/forward navigation
• Fixed sticky offset boundary calculation using scrollable overflow
• Multiple improvements to selection
• Bumped version to 0.6.0 https://cdn.masto.host/floss/media_attachments/files/117/268/896/340/967/567/original/2d7bc8fec6e81404.webp

Things we love to see: how you're using and testing out Servo.

"Embedding Servo in a retro gaming handheld: no keyboard, no mouse, no compositor"

https://www.reddit.com/r/servo/comments/1w4axi0/embedding_servo_in_a_retro_gaming_handheld_no/

July in Servo…

🦾🐧 binaries for Linux aarch64 🪶📐 web fonts in inline SVG 🚄🎨 multithreaded 2D canvas 🩹🦮 incremental accessibility 📝🤖 selection rendering (DOM only, not yet interactive)

https://servo.org/blog/2026/08/31/july-in-servo/

CSS Grid is now enabled by default in Servo 🎉

One of the most powerful web layout systems is now available in an independent Rust web engine. It's powered by the library Taffy & enabled thanks to Nico Burns.

A huge milestone for CSS layout in Servo!

Servo Report for Week 31

• Fixed HTTP/2 ReadableStream request uploads so streaming request bodies complete correctly
• Implemented inserttext editing command, another step toward editable content support
• Wired element and expose id for LargestContentfulPaint entries
• Applied HarfBuzz features globally when shaping for consistent font feature rendering https://cdn.masto.host/floss/media_attachments/files/117/078/350/431/675/853/original/e62f04bd249586b9.webp

Servo Report for Week 29

• Implemented font-language-override which supports correct language-specific glyph shaping for multilingual text
• Implemented font-variant-alternates and @font-feature-values, unlocking stylistic alternates, swashes, and ornaments via OpenType
• Implemented KMAC operations in WebCrypto (generateKey, importKey, exportKey, sign/verify), continuing the build-out of modern crypto algorithms https://cdn.masto.host/floss/media_attachments/files/117/009/785/338/106/921/original/4d6c45de0f8a17e7.webp

Servo now passes 100% of WPT tests for the WebCrypto API, all 73,292 subtests, covering 25 cryptographic algorithms 🎉

A complete, spec-correct cryptography implementation in an independent Rust-powered browser engine is a big milestone! Thank you to the contributors over the last few months who pushed this work along!

May in Servo…

🐢🎬 better compat with mp4 files ☢️🏥 Sanitizer now experimental 🎨📝 more on execCommand() 🙈📜 “Ignore source” in DevTools ⏩🪾 faster DOM and layout

https://servo.org/blog/2026/06/30/may-in-servo/

Servo Report for Week 25 Highlights from last week:

• Add support for CSS gradient color interpolation method
• Implemented pointer and hover media features
• Enabled loading of servo: URLs from command line and location bar in servoshell
• Enabled SharedWorker support

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

Welcome our new Outreachy intern, Niya! 🎉

She's published her first blog post, sharing her motivation for joining the Servo project and what she's been working on:

https://text.tchncs.de/niya/beginning-and-motivation-of-a-servo-intern-in-outreachy

Thank you everyone who joined the Servo sessions at Web Engines Hackfest this year. See you next year!

Next week at @webengineshackfest.org is a great time to find out more about Servo! There will be a number of project contributors attending and 3 different breakout sessions on various aspects of Servo.

You can tune in remotely if not attending in person.

https://webengineshackfest.org/#breakout-sessions

April in Servo…

📱🤖 revamped Android UI ☢️🗃️ IndexedDB now experimental 🌏✍️ better CJK text support ⏩🪾 faster DOM tree mutations 🔬🪆 Scopes panel in DevTools

https://servo.org/blog/2026/05/31/april-in-servo/

March in Servo…

➡️⌨️ tab and accesskey navigation 🔬🐞 see live values in the debugger 📝✅ better carets and form fields 📜📦 JS modules in web workers 😈🔱 Servo now runs on FreeBSD!

https://servo.org/blog/2026/04/30/march-in-servo/

Highlights from last week:

• IndexedDB is now an experimental feature
• Performance: Reuse abspos fragments when they didn't change
• Add initial implementation of underline command
• Implement Screen Wake Lock API
• Progress on accessibility, DevTools, IntersectionObserver and Sanitizer API

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

Servo on Android just got a big refresh:

• Material 3 design
• A dedicated tablet layout
• A new browsing history view

https://github.com/servo/servo/pull/43795

Servo 0.1.0 is out! 🚀 This is our first release available in crates.io and our first LTS version

https://servo.org/blog/2026/04/13/servo-0.1.0-release/

February in Servo…

⏯️📜 pause and resume in DevTools 🤏🖱️ Pointer Events API 🧲🪟 🔰🎨 ‘@property’ and ‘:modal’ 📦🌐 better JS modules support

https://servo.org/blog/2026/03/31/february-in-servo/ https://cdn.masto.host/floss/media_attachments/files/116/323/557/675/597/038/original/c708572b60238f28.png

Servo is now passing 1.9M subtests at wpt.fyi: 1,903,187 / 2,131,264 (89,3%) 🎉 See https://wpt.fyi/results/?product=servo

Highlights from last week:

• Enable jump-start, jump-both, jump-end, jump-none step-position
• Implement node.moveBefore()
• Add support for a blinking text caret
• Initial support for ::first-letter
• More DevTools, Web Crypto API & WebDriver progress

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

Thanks to the Servo community, we raised 59430 USD last year! We spent nearly half of that amount on…

👩‍🔧🎓 one Outreachy internship 📦🤖 five dedicated CI servers 👨‍🏫🧑‍🎓 89 hours of review work

https://opencollective.com/servo/updates/servo-collective-2025-in-review

January in Servo…

🔮🗜️ 🎨📂 ‘::details-content’ and ‘:open’ 💖📝 revamped form inputs 📜📦 new features for JS modules 🪆🌐 HTTPS proxy support

https://servo.org/blog/2026/02/28/january-in-servo/

Highlights from last week:

• More progress on WebDriver
• Improve performance of IntersectionObserver
• Implement HTMLInputElement.alpha
• Implement UserActivation interface
• Expand the UserContentManager API

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

You can do cool things with Servo today! See next one of the last examples, a web browser by

built with web technologies using Servo as rendering engine

https://tangled.org/me.webbeef.org/browser.html/

Highlights from last week:

• More work on DevTools, Web Crypto API, WebDriver
• Improve mouse interaction in form inputs
• Implement navigate to fragment
• overflow-clip-margin now supports

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

December in Servo…

🎤🧑‍🏫 FOSDEM talks next week! 🤹🪟 multiple windows 🪆🌐 HTTP proxy support 🔐🕵️ more SubtleCrypto algorithms 💽🗃️ new site data & network API

https://servo.org/blog/2026/01/23/december-in-servo/

Happy to announce a new bronze sponsor for the Servo project: Anthropy (

). Thank you very much!

Highlights from last week:

• Web Crypto API now passing 91% of WPT tests
• Make Windows installer respect customized path
• Enable css-font-loading tests
• More thoroughly convert between UTF-16 and UTF-8 offsets in text inputs
• Skip some steps when determining encoding for XML document

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

Highlights from last week:

• IndexedDB: Implement databases concept
• Extend SiteDataManager::site_data to include cookie sites
• Restrict box tree damage from changes in original display
• CSS floats improvements
• Enable contrat-color()

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

November in Servo…

🍔🖱️ context menus 🚀💇 parallel CSS parsing 🎨🤹 per-webview rendering contexts 🏷️🍲 ,

Servo Report for Week 49 2025

Highlights from last week:

• Implemented basic support of custom protocol handlers
• Added webdriver touch support for all platforms
• Finished adding ChaCha20-Poly1305 support to WebCrypto API
• Servo can now use a http proxy without authentication

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

Multi-window support has just been added to the Servo WebView API, see it in action! 🪟🪟🪟

Thanks to Taym Haddadi we have noticed that is now possible to make PRs to the Servo repository on GitHub from Servo itself! 🎉

The Servo project has defined sponsorship tiers for organizations and individuals donating money to the project. Contact us at [email protected] if you are interested. https://servo.org/blog/2025/11/21/sponsorship-tiers/

Servo Report for Week 43 2025

Highlights from last week:

• Fully implemented pinch zoom, including center-aware zooming
• Added UI setting for experimental features on Android
• Implemented document preloaded resources
• Added the 'name' and 'areas' IDL attributes for element
• Merged input method activation into the EmbedderControl API
• Released version 0.0.1

1/2

The Servo project is starting to publish releases, version 0.0.1 is out today! 🚀 You can learn more about the goals and plans behind these releases in our blog: https://servo.org/blog/2025/10/20/servo-0.0.1-release/

Servo Report for Week 41 2025

Highlights from last week:

• fonts: Add synthetic bold face support for macos and windows
• servoshell: Reimplement "onClick" action on Android
• script: Allow loading of with a sandbox attribute
• script: implement url matches about:blank

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

GitHub: https://github.com/sponsors/servo

Open Collective: https://opencollective.com/servo

Igalia is excited to announce a new commission from the Sovereign Tech Fund to advance the Servo web engine.

https://www.igalia.com/2025/10/09/Igalia,-Servo,-and-the-Sovereign-Tech-Fund.html

Servo Report for Week 40 2025

Highlights from last week:

• webdriver: Implement Pointer ID
• Implement fetchLater
• Allow WebViews and fonts to have a RenderingGroupId
• script: display top-level SVG image documents

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

GitHub: https://github.com/sponsors/servo Open Collective: https://opencollective.com/servo

From the community: Servo GTK

https://blogs.gnome.org/nacho/2025/10/01/servo-gtk/

Servo Report for Week 39 2025

Highlights from last week:

• stylo: Add support for -webkit-fill-available sizing keyword
• html: Add the reflected 'sizes' IDL attribute for
• script: implement ClipboardItem getType and supports
• layout: Correctly handle margins in sticky positioning

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

GitHub: https://github.com/sponsors/servo Open Collective: https://opencollective.com/servo

This month in Servo…

📐🖼️ inline SVG rendering ↔️🖋️ OpenType variable fonts 🃏🎛️ CSS.registerProperty() 🔣🤖 TextEncoderStream 🫗⏳ Iterator map(), filter(), flatMap()

https://servo.org/blog/2025/09/25/this-month-in-servo/

In 2025 we already have more PRs merged than in the whole of 2024!

2024 PRs: 1,771 2025 PRs: 1,983*

*At the last count of the data this month.

Servo Report for Week 34 2025

• Add font variations support for Windows and macOS
• Add support for format(*-variations) to @font-face
• Implement CSS font-variation-settings property for FreeType platforms
• layout: Stop making fall back to a preferred aspect ratio of 2
• Add matrixTransform for DOMPointReadOnly

You can help support Servo, an independent web rendering engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

Another milestone unlocked for Servo: inline SVG support has now landed 🎉

https://github.com/servo/servo/pull/38188

This month in Servo…

🎞️📽️ APNG and WebP animations 🚄🎨 GPU-accelerated 2D 📌🧰 pin servoshell to your taskbar 🧈↕️ smooth and sturdy scrolling ⏱️🌐 more info in the Network tab

https://servo.org/blog/2025/08/22/this-month-in-servo/

Servo Report Week 27 2025

Highlights from last week:

• servoshell: Select address bar text on click
• Numerous improvements to incremental layout
• Add a basic caching mechanism for ImageKeys
• Webdriver: Implement calculate the absolute position for Get Element Rect

You can help support Servo, an independent web browser engine, and the health of the web ecosystem by donating:

GitHub: https://github.com/sponsors/servo

Open Collective: https://opencollective.com/servo

Servo Report Weeks 20 & 21 2025

Highlights from last week:

• Support wavy and double for text-decoration-line
• Fix calculation of font underline thickness on macOS
• Fully support <input type=color>
• Incremental layout improvements
• libservo: Allow embedders to execute JavaScript scripts via the API
• Unconditionally enable the URLPattern API https://cdn.masto.host/floss/media_attachments/files/114/596/073/881/513/716/original/5578fa8bc4b46888.png

Two months in Servo…

🐟💭 new about:memory page 🪆🎞️ ‘&’ selector and ‘image-set()’ 📝⌨️ and better 🔎🐜 per-webview HiDPI support ✨🕸️ --enable-experimental-web-platform-features

https://servo.org/blog/2025/05/09/this-month-in-servo/

Servo Report Week 17 & 18 2025

Highlights from last 2 weeks:

• servoshell: Make list of options in prompt scrollable Initial support for marking custom protocol secure layout: Implement justify-self for block-level boxes Implement ShadowRoot::setHTMLUnsafe Start adding support for transforms in readable and writable streams Continued work on Trusted Types & DevTools improvements 1/2 https://cdn.masto.host/floss/media_attachments/files/114/477/786/759/654/984/original/7088b16eddebe5cb.png

Servo Report Week 16 2025

Highlights from last week:

• Improvements to memory usage reporting
• Implement CSSStyleSheet constructor
• Support writeText() on Clipboard API
• Carry on progress in several areas: incremental layout, Trusted Types, WebView API, WritableStream

You can help support Servo, an independent web browser engine, and the health of the web ecosystem by donating:

• GitHub: github.com/sponsors/servo
• Open Collective: opencollective.com/servo https://cdn.masto.host/floss/media_attachments/files/114/387/869/035/537/326/original/77af372dbe7f68a9.png

After the community feedback Servo TSC would like to share that we have decided to not modify the AI policy and keep it as is.

Future discussions on this topic (if any) will happen on public channels.

More details: https://github.com/servo/servo/discussions/36379#discussioncomment-12898169

Servo is considering:

• allowing some AI tools for non-code contributions

• allowing maintainers to use GitHub Copilot for some code contributions over the next 12 months

These changes are planned to take effect in June 2025, but we want your feedback. More details:

https://github.com/servo/servo/discussions/36379

Servo Report Week 12 2025

Highlights from last week:

• Support align attribute on HTMLParagraphElement interface
• Implement declarative shadow DOM
• Implement the fit-content() sizing function
• Added --enable-experimental-web-platform-features command line argument

You can help support Servo, an independent web browser engine, and the health of the web ecosystem by donating:

GitHub: https://github.com/sponsors/servo Open Collective: https://opencollective.com/servo

This month in Servo…

🔍🌡️

Servo Report for Week 9 2025

Highlights from last week:

• Continued to add support for keyword sizes
• Various WebView API improvements
• Implement preparation-time document
• Implement the element

You can help support Servo, an independent web browser engine, and the health of the web ecosystem by donating:

https://github.com/sponsors/servo

https://opencollective.com/servo

This month in Servo…

🕸️🪟 new webview API 🕵️🌲 :host and 🌈🎨 relative CSS colors 🖌️🗜️ canvas to JPEG/WebP/blob 🛜💨 more efficient networking

https://servo.org/blog/2025/02/19/this-month-in-servo/

Big win for Servo! Servo now passes 94.9% of Web Platform Tests for CSS2 Tables, surpassing Blink! 🎉 Big congrats to the team for their incredible progress on table support over the past year.

This month in Servo…

🌃🏙️ ‘prefers-color-scheme’ 📝🐛 console.trace() 🚄💨 12x speedup on flex column layout 🤏📦 20% smaller binaries 💬🧑‍💻 better compat (#Discord, #htmx)

More details → https://servo.org/blog/2025/01/10/this-month-in-servo/

This month in Servo…

🔍❓ :is() and :where() selectors 🪟📏 CSS grid layout (with --pref) 🧑‍🤝‍🧑📐 parallel flexbox layout 🧈🐁 smoother scrolling 🗜️🖥️ smaller binaries

More details → https://servo.org/blog/2024/12/09/this-month-in-servo/

Servo Weekly Report Nº 17 Highlights from the last week:

• Implement element.shadowRoot attribute • Enable SubtleCrypto by default • Upgrade Stylo to 2024-11-01 • Ongoing improvements to the ReadableStream reimplementation • Initial support for Grid Layout with taffy

Your donations help keep Servo, an independent web browser engine, active and maintains the health of the web ecosystem:

https://opencollective.com/servo

https://github.com/sponsors/servo

Servo Weekly Report Nº 16 Highlights from the last week:

• Support justify-self on absolutely positioned elements • fix: allow form submission for input [type=image] • OpenHarmony: Add basic IME and keyboard support • Implement crypto.subtle.sign/verify with HMAC

Your donations help keep Servo, an independent web browser engine, active and maintains the health of the web ecosystem:

• https://opencollective.com/servo • https://github.com/sponsors/servo

2024 has been an eventful year for the Servo project. We saw a record number of contributors and pull requests since 2018. 📈 We look forward to continuing this great work in 2025 as well. ✨ 📝 A report by Servo’s TSC Chair

https://blogs.igalia.com/mrego/servo-revival-2023-2024/

This month in Servo…

🔒🔑 early SubtleCrypto support 🎨💡 ‘mix-blend-mode: plus-lighter’ 📦↔️ CSS size keywords 📏🏎️ faster layout and compositing 📱🌃 OpenHarmony nightlies

More details → https://servo.org/blog/2024/11/08/this-month-in-servo/

We've just joined Bluesky if you'd like to follow us elsewhere on the web:

https://bsky.app/profile/servo.org

Servo Weekly Report Nº13

Here are a few highlights from the last few weeks:

• Implemented keyword sizes on floats & atomic inlines • Published nightly builds for OpenHarmony • Instantiate system fonts using system font loaders for perf improvements • Implemented DOMMatrix stringifier • Implemented DOMRect::FromRect

Your donations help keep Servo, an independent web browser engine, active and maintains the health of the web ecosystem:

• https://github.com/sponsors/servo • https://opencollective.com/servo

This month in Servo…

⬅️✍️ right-to-left layout 🔮📩 🔡🎨 faster fonts and WebGPU 📂📄 better tabbed browsing 🤖📱 Android nightlies

More details → https://servo.org/blog/2024/10/03/this-month-in-servo/

Servo now supports devtools again!

Thanks to eri, our latest Outreachy intern, you can now inspect the DOM tree, view styles, evaluate JavaScript, and read console messages.

Run servoshell with --devtools=6080 and connect via about:debugging in Firefox.

More details → https://servo.org/blog/2024/09/20/devtools/

Servo Weekly Report Nº11 Here are a few highlights that landed last week:

• CSS Table Support is now passing 80% of WPT tests 🎉 • Right-to-left support for other layout modes (https://github.com/servo/servo/pull/33375) • Initial support for <link rel="prefetch"> (https://github.com/servo/servo/pull/33345) • Implement console.timeLog (https://github.com/servo/servo/pull/33377)

Help support Servo, an independent web browser engine, and the health of the web ecosystem: • https://github.com/sponsors/servo • https://opencollective.com/servo

Do you know what it takes to turn a web engine into a browser?

Learn how we’re becoming browser-ready, including support for multiple webviews and multiple windows, through the lens of Verso, a new experimental browser based on Servo!

https://servo.org/blog/2024/09/11/building-browser/

Servo Weekly Report Nº10

Here are a few highlights that landed last week:

• More Flexbox improvements • Implement HTMLQuoteElement "cite" attribute (https://github.com/servo/servo/pull/33307) • servoshell: add keyboard shortcuts for switching tabs (https://github.com/servo/servo/pull/33319) • Update layout of servoshell android app (https://github.com/servo/servo/pull/33294)

Help support Servo, an independent web browser engine, and the health of the web ecosystem: • https://github.com/sponsors/servo • https://opencollective.com/servo

POV: sipping coffee and browsing Hacker News on the Servo minibrowser 🤩

The Servo team landed an incredible amount of work and Flexbox is now on by default!

While there's still work to do, this is a huge milestone for Servo! Check out the before & after of the servo.org website below!

Servo Weekly Report Nº9

Here are a few highlights that landed last week:

• Basic tab strip for the minibrowser (https://github.com/servo/servo/pull/33100) • Add initial support for clip-path: [ || (https://github.com/servo/servo/pull/33107) • servoshell: Enable OpenXR by default and remove old WebVR prefs, adjust XrDiscovery initialization (https://github.com/servo/servo/pull/33245) • Various flexbox improvements

This month in Servo…

📂📄 tabbed browsing support 📐🎮 flexbox and WebXR enabled by default 🐑🎲 structuredClone() and randomUUID() 🏭🤖 faster Windows CI builds 🌲🎨 HTML and CSS devtools

More details → https://servo.org/blog/2024/08/31/this-month-in-servo/

Servo Weekly Report Nº7

Support start and end values for flexbox align-self (https://github.com/servo/servo/pull/33032)

Update XRSession to latest spec (https://github.com/servo/servo/pull/33059)

Initial implementation of flex-direction: column and column-reverse (https://github.com/servo/servo/pull/33031)

Implement IIRFilterNode (web audio)(https://github.com/servo/servo/pull/33001)

Help support Servo, an independent web browser engine, & the health of the web ecosystem:

https://github.com/sponsors/servo

https://opencollective.com/servo

Are you into Rust, Python, JavaScript, or CSS? Why not get paid to work on a web browser engine?

Servo is participating in Outreachy, a three-month paid (7000 USD) remote internship program that runs twice a year.

Apply before 21 August at 16:00 UTC → https://www.outreachy.org/apply/eligibility/

#outreachy #internships #opensource

Servo Weekly Report Nº6

• Initial structuredClone implementation (https://github.com/servo/servo/pull/32960) • CSS Flexbox: Add support for align-content: stretch (https://github.com/servo/servo/pull/32906) • Allow navigations that include cross-origin redirects (https://github.com/servo/servo/pull/32996) • webgpu: Implement proper async pipeline creation and GPUPipelineError (https://github.com/servo/servo/pull/32636)

Help support Servo, an independent web browser engine, & the health of the web ecosystem: • https://github.com/sponsors/servo • https://opencollective.com/servo

Servo Weekly Report Nº5

• WebXR: Implement Gamepads Module (https://github.com/servo/servo/pull/32860) • CSS Flexbox: Implement support for gaps (https://github.com/servo/servo/pull/32891) • Dependencies updated: mozjs (https://github.com/servo/servo/pull/32882), webrender (https://github.com/servo/servo/pull/32930), wgpu (https://github.com/servo/servo/pull/32873) • DevTools: Allow modification of attributes (https://github.com/servo/servo/pull/32888)

Servo on the Raspberry Pi 400 🫡😇

This month in Servo…

🥽🎮 experimental OpenXR support 📜🪵 console logging in devtools 🎨📏 measureText() on 2D canvases 🚄💨 parallel table layout 🗃️📂 local directory listings 🗜️💽 12% smaller binaries

More details → https://servo.org/blog/2024/07/31/this-month-in-servo/

This month in Servo…

📏 ‘ch’ and ‘ic’ units 😶 ‘empty-cells’, ‘border-collapse’ 🕵️ ‘visibility: collapse’ in tables 💜 color emoji on macOS/Linux ↔️ back/forward mouse buttons 🔗 link URLs in status bar

More details → https://servo.org/blog/2024/05/30/this-month-in-servo/