I can give you the exact paths or search queries to use on these platforms. Share public link
LXR was originally built for the Linux kernel but works surprisingly well for AOSP. It is written in Perl and uses glimpse or ctags for indexing.
: Unlike traditional local indexing with an IDE, this tool works entirely in the browser, making it accessible even on non-development machines. Considerations xref aosp free
For serious AOSP work, Android Code Search is an indispensable resource.
source code with full cross-references for free, the best options as of 2026 are: Android Code Search (Official) I can give you the exact paths or
Traditionally, system engineers and custom ROM developers had to download hundreds of gigabytes of source data just to trace a single framework call. Today, multiple free XRef AOSP platforms allow you to browse, search, and jump through the entire Android ecosystem directly from your web browser.
UI looks dated; independent servers may occasionally experience downtime or lag behind the absolute newest Android bleeding-edge commits. 3. GitHub and GitLab Mirrors : Unlike traditional local indexing with an IDE,
Most of these sites share a common ancestor: . This means they look and feel very similar. To give you a concrete idea of how to use them, let's take a tour of a typical interface, using AOSPXRef as an example.
The Android Open Source Project is not a singular monolithic repository. Instead, it consists of hundreds of isolated Git repositories stitched together via Google's repo management utility.