The API will be available on Android 17 this year. All Android devices have that API, but only devices configured to expose wired serial ports will return non-empty lists of serial ports. All other devices will always return empty lists.
On Wed, Mar 25, 2026 at 1:47 PM Reilly Grant <[email protected]> wrote: > Since this requires OS-level support for an application like Chrome to > connect to a serial device, what Android versions and device form-factors > will this work on? > Reilly Grant | Software Engineer | [email protected] | Google Chrome > <https://www.google.com/chrome> > > > On Wed, Mar 25, 2026 at 8:24 AM Philip Jägenstedt <[email protected]> > wrote: > >> Actually, per >> https://www.chromium.org/blink/launching-features/#:~:text=Changes%20which%20extend%20an%20already%20exposed%20API%20to%20additional%20platforms >> this doesn't need approval since it already shipped on other platforms. >> Rubberstamp LGTM1+LGTM2+LGTM3. >> >> On Wed, Mar 25, 2026 at 4:07 PM Philip Jägenstedt <[email protected]> >> wrote: >> >>> Hi, >>> >>> I see that there are existing tests in >>> https://wpt.fyi/results/serial?label=experimental&label=master&aligned, >>> but only for things that don't require actually creating a device. >>> >>> Do at least these tests also pass on Android? >>> >>> Is any work happening to make Serial testable in WPT in general? >>> Something along the lines of >>> https://web-platform-tests.org/writing-tests/testdriver.html#bluetooth >>> should work. >>> >>> Best regards, >>> Philip >>> >>> On Tue, Mar 24, 2026 at 8:23 PM Chromestatus < >>> [email protected]> wrote: >>> >>>> *Contact emails* >>>> [email protected], [email protected] >>>> >>>> *Explainer* >>>> *No information provided* >>>> >>>> *Specification* >>>> *No information provided* >>>> >>>> *Summary* >>>> The Web Serial API provides an interface for connecting to serial >>>> devices, either through a serial port on the user’s system or removable USB >>>> and Bluetooth devices that emulate a serial port. Now it is supported on >>>> Android. Users, especially in the educational, hobbyist and industrial >>>> sectors, connect peripheral devices to their computers that require custom >>>> software to control. For example, robotics are often used to teach computer >>>> programming and electronics in schools. This requires software which can >>>> upload code to a robot and/or control it remotely. In an industrial or >>>> hobbyist setting a piece of equipment such as a mill, laser cutter or 3D >>>> printer is controlled by a program running on a connected computer. These >>>> devices are often controlled by small microcontrollers via a serial >>>> connection. Documentation: https://web.dev/serial/ Specification: >>>> https://wicg.github.io/serial/ >>>> >>>> *Blink component* >>>> Blink>Serial >>>> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ESerial%22> >>>> >>>> *Web Feature ID* >>>> serial <https://webstatus.dev/features/serial> >>>> >>>> *Motivation* >>>> *No information provided* >>>> >>>> *Initial public proposal* >>>> *No information provided* >>>> >>>> *TAG review* >>>> *No information provided* >>>> >>>> *TAG review status* >>>> Issues addressed >>>> >>>> *Goals for experimentation* >>>> None >>>> >>>> *Risks* >>>> >>>> >>>> *Interoperability and Compatibility* >>>> *No information provided* >>>> >>>> *Gecko*: No signal >>>> >>>> *WebKit*: No signal >>>> >>>> *Web developers*: No signals >>>> >>>> *Other signals*: >>>> >>>> *WebView application risks* >>>> >>>> Does this intent deprecate or change behavior of existing APIs, such >>>> that it has potentially high risk for Android WebView-based applications? >>>> *No information provided* >>>> >>>> >>>> *Debuggability* >>>> *No information provided* >>>> >>>> *Will this feature be supported on all six Blink platforms (Windows, >>>> Mac, Linux, ChromeOS, Android, and Android WebView)?* >>>> No >>>> >>>> *Is this feature fully tested by web-platform-tests >>>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?* >>>> No >>>> >>>> >>>> *Flag name on about://flags* >>>> *No information provided* >>>> >>>> *Finch feature name* >>>> WebSerialWiredDevicesAndroid >>>> >>>> *Rollout plan* >>>> Will ship enabled for all users >>>> >>>> *Requires code in //chrome?* >>>> False >>>> >>>> *Tracking bug* >>>> https://g-issues.chromium.org/issues/365514951 >>>> >>>> *Launch bug* >>>> https://launch.corp.google.com/launch/4387322 >>>> >>>> *Estimated milestones* >>>> Shipping on Android 148 >>>> >>>> *Anticipated spec changes* >>>> >>>> Open questions about a feature may be a source of future web compat or >>>> interop issues. Please list open issues (e.g. links to known github issues >>>> in the project for the feature specification) whose resolution may >>>> introduce web compat/interop risk (e.g., changing to naming or structure of >>>> the API in a non-backward-compatible way). >>>> *No information provided* >>>> >>>> *Link to entry on the Chrome Platform Status* >>>> https://chromestatus.com/feature/6043992171085824?gate=5862339666640896 >>>> >>>> *Links to previous Intent discussions* >>>> Intent to Ship: >>>> https://groups.google.com/a/chromium.org/g/blink-dev/c/yGhvQ6mEmcY/m/xr-aYJ-_AQAJ >>>> >>>> >>>> This intent message was generated by Chrome Platform Status >>>> <https://chromestatus.com>. >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "blink-dev" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To view this discussion visit >>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/69c2e4a0.050a0220.38bee9.0000.GAE%40google.com >>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/69c2e4a0.050a0220.38bee9.0000.GAE%40google.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "blink-dev" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAARdPYd2CVPYCX_Jr9MxPS0rgDErFTYW98bbZwOB3WeVQ4yw4Q%40mail.gmail.com >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAARdPYd2CVPYCX_Jr9MxPS0rgDErFTYW98bbZwOB3WeVQ4yw4Q%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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