Tool: Latest Chromium ASan builds
This tool allows you to quickly download the latest Chromium AddressSanitizer (ASan) builds, according to data from the storage bucket and ChromiumDash.
Since March 16, 2022, this tool shows release ASan builds for Windows, ChromeOS, Linux, and Mac. Previously it only showed Windows builds.
On August 4th, 2022, Chromium added a Python script to get ASan builds: get_asan_chrome.py
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Latest files in chromium-browser-asan storage bucket
Windows x64
Commit hash: 311ab333a4c09ba9283d96b0ac7a52481eb3a202
Updated: 2025-12-20T22:55:33.081Z
ChromeOS
Commit hash: 232ec7330b40373ba9c55d845b7001236e0cb5c2
Updated: 2025-12-20T22:56:27.498Z
Linux
Commit hash: 232ec7330b40373ba9c55d845b7001236e0cb5c2
Updated: 2025-12-20T22:39:46.337Z
Mac
Commit hash: 311ab333a4c09ba9283d96b0ac7a52481eb3a202
Updated: 2025-12-20T23:04:38.745Z
Useful links
Why I created this tool
The Chromium ASan documentation points to the storage bucket directly and instructs users to set the prefix manually to narrow down the platform and commit number. (Update: Since September 2022 the documentation also points to a useful Python script.) This seems like a lot of overhead for something I do on a regular basis, especially without knowing the latest commit number with an ASan build (not all commits get a build) or after forgetting where to find the latest commit number.
The process above is also prone to human error. Recently I accidentally downloaded a month-old build instead of the latest build. Guess who spent a few hours investigating a fixed UAF bug? 🙋🏻♂️
Hope this is as useful to others as it will be to future me.
Alesandro Ortiz is a Software Engineer and Security Researcher focused on improving the web.