On 12/9/25 5:34 p.m., Chromestatus wrote:
*Contact emails*
[email protected], [email protected]
*Specification*
https://www.w3.org/TR/IndexedDB
*Summary*
Chromium's IndexedDB implementation is rewritten on top of SQLite, to
replace the previous implementation that uses a hybrid of LevelDB and
flat files. There is no change to the Web API. This is expected to
improve reliability and, to a lesser extent, performance. For now this
is applied only to in-memory contexts such as Incognito mode in
Chromium and Google Chrome. This limits the impact of any new bugs, as
well as puts off the need to worry about migration of existing data
persisted to disk.
*Blink component*
Blink>Storage>IndexedDB
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EStorage%3EIndexedDB%22>
*Web Feature ID*
indexeddb <https://webstatus.dev/features/indexeddb>
*Search tags*
sqlite </features#tags:sqlite>, idb </features#tags:idb>, indexeddb
</features#tags:indexeddb>, leveldb </features#tags:leveldb>
*Risks*
*Interoperability and Compatibility*
Interop: this work entails a web-visible behavioral change concerning
an edge case in IDB transaction scheduling. This change brings
Chromium in line with Firefox and Safari. (Both new and old behavior
are standards-compliant.) See demo. Compatibility: This PSA exists
primarily to warn of the risk of unintended breakage. The later step
where persisted databases are stored with SQLite, and existing data is
migrated to SQLite, will have higher associated risks and will have
its own PSA.
Is there a link to a demo? I wonder if this creates a new Incognito mode
oracle.
/Gecko/: No signal
/WebKit/: No signal
/Web developers/: No signals
/Other signals/:
*Security*
All data on disk is still segregated by storage bucket (origin). Both
new and old implementation are newly fuzz-tested.
*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*
existing IndexedDB DevTools support is unimpacted
*Will this feature be supported on all six Blink platforms (Windows,
Mac, Linux, ChromeOS, Android, and Android WebView)?*
Yes
*Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?*
Yes
https://wpt.fyi/results/IndexedDB
*Tracking bug*
https://issues.chromium.org/issues/436880911
*Estimated milestones*
Shipping on desktop 144
DevTrial on desktop 144
Shipping on Android 144
*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/5126896685809664
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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