diff --git a/README.md b/README.md
index 5e9e04a..f471c47 100644
--- a/README.md
+++ b/README.md
@@ -603,7 +603,7 @@
 * [Build Performance](docs/perf.md)
 * [Generating CLion Projects](docs/clion.md)
 * [Generating YouCompleteMe/VSCode compile\_commands.json file](docs/compdb.md)
-* Make-specific documentation: [build/make/README.md](https://android.googlesource.com/platform/build/+/master/README.md)
+* Make-specific documentation: [build/make/README.md](https://android.googlesource.com/platform/build/+/main/README.md)
 
 ## Developing for Soong
 
diff --git a/android/api_levels.go b/android/api_levels.go
index 3f538c0..c019f99 100644
--- a/android/api_levels.go
+++ b/android/api_levels.go
@@ -336,7 +336,7 @@
 // ApiLevelFromUser for more details.
 func ApiLevelFromUserWithConfig(config Config, raw string) (ApiLevel, error) {
 	// This logic is replicated in starlark, if changing logic here update starlark code too
-	// https://cs.android.com/android/platform/superproject/+/master:build/bazel/rules/common/api.bzl;l=42;drc=231c7e8c8038fd478a79eb68aa5b9f5c64e0e061
+	// https://cs.android.com/android/platform/superproject/+/main:build/bazel/rules/common/api.bzl;l=42;drc=231c7e8c8038fd478a79eb68aa5b9f5c64e0e061
 	if raw == "" {
 		panic("API level string must be non-empty")
 	}
@@ -449,7 +449,7 @@
 		err    error
 	}
 	// This logic is replicated in starlark, if changing logic here update starlark code too
-	// https://cs.android.com/android/platform/superproject/+/master:build/bazel/rules/common/api.bzl;l=30;drc=231c7e8c8038fd478a79eb68aa5b9f5c64e0e061
+	// https://cs.android.com/android/platform/superproject/+/main:build/bazel/rules/common/api.bzl;l=30;drc=231c7e8c8038fd478a79eb68aa5b9f5c64e0e061
 	result := config.Once(finalCodenamesMapKey, func() interface{} {
 		apiLevelsMap, err := getApiLevelsMapReleasedVersions()
 
@@ -482,7 +482,7 @@
 		err    error
 	}
 	// This logic is replicated in starlark, if changing logic here update starlark code too
-	// https://cs.android.com/android/platform/superproject/+/master:build/bazel/rules/common/api.bzl;l=23;drc=231c7e8c8038fd478a79eb68aa5b9f5c64e0e061
+	// https://cs.android.com/android/platform/superproject/+/main:build/bazel/rules/common/api.bzl;l=23;drc=231c7e8c8038fd478a79eb68aa5b9f5c64e0e061
 	result := config.Once(apiLevelsMapKey, func() interface{} {
 		apiLevelsMap, err := getApiLevelsMapReleasedVersions()
 		if err == nil {
diff --git a/android/module.go b/android/module.go
index 1a428e5..d8f004c 100644
--- a/android/module.go
+++ b/android/module.go
@@ -326,7 +326,7 @@
 	// defaults module, use the `defaults_visibility` property on the defaults module;
 	// not to be confused with the `default_visibility` property on the package module.
 	//
-	// See https://android.googlesource.com/platform/build/soong/+/master/README.md#visibility for
+	// See https://android.googlesource.com/platform/build/soong/+/main/README.md#visibility for
 	// more details.
 	Visibility []string
 
diff --git a/bp2build/build_conversion.go b/bp2build/build_conversion.go
index af2f550..bd56768 100644
--- a/bp2build/build_conversion.go
+++ b/bp2build/build_conversion.go
@@ -446,7 +446,7 @@
 	if !emitZeroValues && isZero(propertyValue) {
 		// A property value being set or unset actually matters -- Soong does set default
 		// values for unset properties, like system_shared_libs = ["libc", "libm", "libdl"] at
-		// https://cs.android.com/android/platform/superproject/+/master:build/soong/cc/linker.go;l=281-287;drc=f70926eef0b9b57faf04c17a1062ce50d209e480
+		// https://cs.android.com/android/platform/superproject/+/main:build/soong/cc/linker.go;l=281-287;drc=f70926eef0b9b57faf04c17a1062ce50d209e480
 		//
 		// In Bazel-parlance, we would use "attr.<type>(default = <default
 		// value>)" to set the default value of unset attributes. In the cases
diff --git a/cc/kernel_headers.go b/cc/kernel_headers.go
index 9ea988a..4f685be 100644
--- a/cc/kernel_headers.go
+++ b/cc/kernel_headers.go
@@ -34,7 +34,7 @@
 // kernel_headers retrieves the list of kernel headers directories from
 // TARGET_BOARD_KERNEL_HEADERS and TARGET_PRODUCT_KERNEL_HEADERS variables in
 // a makefile for compilation. See
-// https://android.googlesource.com/platform/build/+/master/core/config.mk
+// https://android.googlesource.com/platform/build/+/main/core/config.mk
 // for more details on them.
 func kernelHeadersFactory() android.Module {
 	module, library := NewLibrary(android.HostAndDeviceSupported)
diff --git a/cc/library.go b/cc/library.go
index 592f70f..ebfec35 100644
--- a/cc/library.go
+++ b/cc/library.go
@@ -1419,7 +1419,7 @@
 func (library *libraryDecorator) crossVersionAbiDiff(ctx android.ModuleContext, referenceDump android.Path,
 	baseName string, isLlndkOrNdk bool, sourceVersion, prevVersion string) {
 
-	errorMessage := "error: Please follow https://android.googlesource.com/platform/development/+/master/vndk/tools/header-checker/README.md#configure-cross_version-abi-check to resolve the ABI difference between your source code and version " + prevVersion + "."
+	errorMessage := "error: Please follow https://android.googlesource.com/platform/development/+/main/vndk/tools/header-checker/README.md#configure-cross_version-abi-check to resolve the ABI difference between your source code and version " + prevVersion + "."
 
 	library.sourceAbiDiff(ctx, referenceDump, baseName, prevVersion,
 		isLlndkOrNdk, true /* allowExtensions */, sourceVersion, errorMessage)
diff --git a/cc/ndk_headers.go b/cc/ndk_headers.go
index 0fbc8d0..567cb7c 100644
--- a/cc/ndk_headers.go
+++ b/cc/ndk_headers.go
@@ -182,7 +182,7 @@
 }
 
 // Like ndk_headers, but preprocesses the headers with the bionic versioner:
-// https://android.googlesource.com/platform/bionic/+/master/tools/versioner/README.md.
+// https://android.googlesource.com/platform/bionic/+/main/tools/versioner/README.md.
 //
 // Unlike ndk_headers, we don't operate on a list of sources but rather a whole directory, the
 // module does not have the srcs property, and operates on a full directory (the `from` property).
@@ -267,7 +267,7 @@
 }
 
 // versioned_ndk_headers preprocesses the headers with the bionic versioner:
-// https://android.googlesource.com/platform/bionic/+/master/tools/versioner/README.md.
+// https://android.googlesource.com/platform/bionic/+/main/tools/versioner/README.md.
 // Unlike the ndk_headers soong module, versioned_ndk_headers operates on a
 // directory level specified in `from` property. This is only used to process
 // the bionic/libc/include directory.
diff --git a/cmd/path_interposer/main.go b/cmd/path_interposer/main.go
index 8b9de52..c8c1464 100644
--- a/cmd/path_interposer/main.go
+++ b/cmd/path_interposer/main.go
@@ -140,7 +140,7 @@
 			defer func() { <-waitForLog }()
 		}
 		if config.Error {
-			return 1, fmt.Errorf("%q is not allowed to be used. See https://android.googlesource.com/platform/build/+/master/Changes.md#PATH_Tools for more information.", base)
+			return 1, fmt.Errorf("%q is not allowed to be used. See https://android.googlesource.com/platform/build/+/main/Changes.md#PATH_Tools for more information.", base)
 		}
 	}
 
diff --git a/cmd/path_interposer/main_test.go b/cmd/path_interposer/main_test.go
index c89d623..8ae1d7d 100644
--- a/cmd/path_interposer/main_test.go
+++ b/cmd/path_interposer/main_test.go
@@ -138,7 +138,7 @@
 			args: []string{"path_interposer_test_not_allowed"},
 
 			exitCode: 1,
-			err:      fmt.Errorf(`"path_interposer_test_not_allowed" is not allowed to be used. See https://android.googlesource.com/platform/build/+/master/Changes.md#PATH_Tools for more information.`),
+			err:      fmt.Errorf(`"path_interposer_test_not_allowed" is not allowed to be used. See https://android.googlesource.com/platform/build/+/main/Changes.md#PATH_Tools for more information.`),
 			logEntry: "path_interposer_test_not_allowed",
 		},
 	}
diff --git a/dexpreopt/DEXPREOPT_IMPLEMENTATION.md b/dexpreopt/DEXPREOPT_IMPLEMENTATION.md
index c3a1730..1cb0add 100644
--- a/dexpreopt/DEXPREOPT_IMPLEMENTATION.md
+++ b/dexpreopt/DEXPREOPT_IMPLEMENTATION.md
@@ -237,22 +237,22 @@
 app.
 
 
-[make/core/dex_preopt.mk]: https://cs.android.com/android/platform/superproject/+/master:build/make/core/dex_preopt.mk
-[make/core/dex_preopt_config.mk]: https://cs.android.com/android/platform/superproject/+/master:build/make/core/dex_preopt_config.mk
-[make/core/dex_preopt_config_merger.py]: https://cs.android.com/android/platform/superproject/+/master:build/make/core/dex_preopt_config_merger.py
-[make/core/dex_preopt_odex_install.mk]: https://cs.android.com/android/platform/superproject/+/master:build/make/core/dex_preopt_odex_install.mk
-[soong/dexpreopt]: https://cs.android.com/android/platform/superproject/+/master:build/soong/dexpreopt
-[soong/dexpreopt/class_loader_context.go]: https://cs.android.com/android/platform/superproject/+/master:build/soong/dexpreopt/class_loader_context.go
-[soong/dexpreopt/config.go]: https://cs.android.com/android/platform/superproject/+/master:build/soong/dexpreopt/config.go
-[soong/dexpreopt/dexpreopt.go]: https://cs.android.com/android/platform/superproject/+/master:build/soong/dexpreopt/dexpreopt.go
-[soong/java]: https://cs.android.com/android/platform/superproject/+/master:build/soong/java
-[soong/java/app.go:deps]: https://cs.android.com/android/platform/superproject/+/master:build/soong/java/app.go?q=%22func%20\(u%20*usesLibrary\)%20deps%22
-[soong/java/app.go:verifyUsesLibraries]: https://cs.android.com/android/platform/superproject/+/master:build/soong/java/app.go?q=%22func%20\(u%20*usesLibrary\)%20verifyUsesLibraries%22
-[soong/java/bootclasspath_fragment.go]: https://cs.android.com/android/platform/superproject/+/master:build/soong/java/bootclasspath_fragment.go
-[soong/java/dexpreopt.go]: https://cs.android.com/android/platform/superproject/+/master:build/soong/java/dexpreopt.go
-[soong/java/dexpreopt_bootjars.go]: https://cs.android.com/android/platform/superproject/+/master:build/soong/java/dexpreopt_bootjars.go
-[soong/java/dexpreopt_config.go]: https://cs.android.com/android/platform/superproject/+/master:build/soong/java/dexpreopt_config.go
-[soong/java/java.go:addCLCFromDep]: https://cs.android.com/android/platform/superproject/+/master:build/soong/java/java.go?q=%22func%20addCLCfromDep%22
-[soong/java/platform_bootclasspath.go]: https://cs.android.com/android/platform/superproject/+/master:build/soong/java/platform_bootclasspath.go
-[soong/scripts/construct_context.py]: https://cs.android.com/android/platform/superproject/+/master:build/soong/scripts/construct_context.py
-[soong/scripts/manifest_check.py]: https://cs.android.com/android/platform/superproject/+/master:build/soong/scripts/manifest_check.py
+[make/core/dex_preopt.mk]: https://cs.android.com/android/platform/superproject/+/main:build/make/core/dex_preopt.mk
+[make/core/dex_preopt_config.mk]: https://cs.android.com/android/platform/superproject/+/main:build/make/core/dex_preopt_config.mk
+[make/core/dex_preopt_config_merger.py]: https://cs.android.com/android/platform/superproject/+/main:build/make/core/dex_preopt_config_merger.py
+[make/core/dex_preopt_odex_install.mk]: https://cs.android.com/android/platform/superproject/+/main:build/make/core/dex_preopt_odex_install.mk
+[soong/dexpreopt]: https://cs.android.com/android/platform/superproject/+/main:build/soong/dexpreopt
+[soong/dexpreopt/class_loader_context.go]: https://cs.android.com/android/platform/superproject/+/main:build/soong/dexpreopt/class_loader_context.go
+[soong/dexpreopt/config.go]: https://cs.android.com/android/platform/superproject/+/main:build/soong/dexpreopt/config.go
+[soong/dexpreopt/dexpreopt.go]: https://cs.android.com/android/platform/superproject/+/main:build/soong/dexpreopt/dexpreopt.go
+[soong/java]: https://cs.android.com/android/platform/superproject/+/main:build/soong/java
+[soong/java/app.go:deps]: https://cs.android.com/android/platform/superproject/+/main:build/soong/java/app.go?q=%22func%20\(u%20*usesLibrary\)%20deps%22
+[soong/java/app.go:verifyUsesLibraries]: https://cs.android.com/android/platform/superproject/+/main:build/soong/java/app.go?q=%22func%20\(u%20*usesLibrary\)%20verifyUsesLibraries%22
+[soong/java/bootclasspath_fragment.go]: https://cs.android.com/android/platform/superproject/+/main:build/soong/java/bootclasspath_fragment.go
+[soong/java/dexpreopt.go]: https://cs.android.com/android/platform/superproject/+/main:build/soong/java/dexpreopt.go
+[soong/java/dexpreopt_bootjars.go]: https://cs.android.com/android/platform/superproject/+/main:build/soong/java/dexpreopt_bootjars.go
+[soong/java/dexpreopt_config.go]: https://cs.android.com/android/platform/superproject/+/main:build/soong/java/dexpreopt_config.go
+[soong/java/java.go:addCLCFromDep]: https://cs.android.com/android/platform/superproject/+/main:build/soong/java/java.go?q=%22func%20addCLCfromDep%22
+[soong/java/platform_bootclasspath.go]: https://cs.android.com/android/platform/superproject/+/main:build/soong/java/platform_bootclasspath.go
+[soong/scripts/construct_context.py]: https://cs.android.com/android/platform/superproject/+/main:build/soong/scripts/construct_context.py
+[soong/scripts/manifest_check.py]: https://cs.android.com/android/platform/superproject/+/main:build/soong/scripts/manifest_check.py
diff --git a/docs/best_practices.md b/docs/best_practices.md
index bc760b8..48ed996 100644
--- a/docs/best_practices.md
+++ b/docs/best_practices.md
@@ -285,6 +285,6 @@
 and will require ongoing maintenance as the build system is changed; so
 plugins should be used only when absolutely required.
 
-See [art/build/art.go](https://android.googlesource.com/platform/art/+/master/build/art.go)
-or [external/llvm/soong/llvm.go](https://android.googlesource.com/platform/external/llvm/+/master/soong/llvm.go)
+See [art/build/art.go](https://android.googlesource.com/platform/art/+/main/build/art.go)
+or [external/llvm/soong/llvm.go](https://android.googlesource.com/platform/external/llvm/+/main/soong/llvm.go)
 for examples of more complex conditionals on product variables or environment variables.
diff --git a/docs/clion.md b/docs/clion.md
index 110891b..8e2c597 100644
--- a/docs/clion.md
+++ b/docs/clion.md
@@ -4,7 +4,7 @@
 only. Build should still be done via make/m/mm(a)/mmm(a).
 
 Note: alternatively, you can use
-[aidegen to generate a Clion or VSCode project](https://android.googlesource.com/platform/tools/asuite/+/refs/heads/master/aidegen/README.md)
+[aidegen to generate a Clion or VSCode project](https://android.googlesource.com/platform/tools/asuite/+/refs/heads/main/aidegen/README.md)
 with a single command, using the `-i c` flag.
 
 CMakeLists.txt project file generation is enabled via environment variable:
diff --git a/docs/map_files.md b/docs/map_files.md
index 37f91ec..e1ddefc 100644
--- a/docs/map_files.md
+++ b/docs/map_files.md
@@ -5,8 +5,8 @@
 semantically meaningful to [gen_stub_libs.py]. For an example of a map file, see
 [libc.map.txt].
 
-[gen_stub_libs.py]: https://cs.android.com/android/platform/superproject/+/master:build/soong/cc/gen_stub_libs.py
-[libc.map.txt]: https://cs.android.com/android/platform/superproject/+/master:bionic/libc/libc.map.txt
+[gen_stub_libs.py]: https://cs.android.com/android/platform/superproject/+/main:build/soong/cc/gen_stub_libs.py
+[libc.map.txt]: https://cs.android.com/android/platform/superproject/+/main:bionic/libc/libc.map.txt
 [linker version scripts]: https://www.gnu.org/software/gnulib/manual/html_node/LD-Version-Scripts.html
 
 ## Basic format
diff --git a/docs/rbe.md b/docs/rbe.md
index cfe86d7..be60c83 100644
--- a/docs/rbe.md
+++ b/docs/rbe.md
@@ -11,7 +11,7 @@
 
 To enable RBE, you need to set several environment variables before triggering
 the build. You can set them through a
-[environment variables config file](https://android.googlesource.com/platform/build/soong/+/master/README.md#environment-variables-config-file).
+[environment variables config file](https://android.googlesource.com/platform/build/soong/+/main/README.md#environment-variables-config-file).
 As an example, [build/soong/docs/rbe.json](rbe.json) is a config that enables
 RBE in the build. Once the config file is created, you need to let Soong load
 the config file by specifying `ANDROID_BUILD_ENVIRONMENT_CONFIG_DIR` environment
diff --git a/docs/tidy.md b/docs/tidy.md
index 2eb8234..ae0ca93 100644
--- a/docs/tidy.md
+++ b/docs/tidy.md
@@ -24,7 +24,7 @@
 ```
 
 The default global clang-tidy checks and flags are defined in
-[build/soong/cc/config/tidy.go](https://android.googlesource.com/platform/build/soong/+/refs/heads/master/cc/config/tidy.go).
+[build/soong/cc/config/tidy.go](https://android.googlesource.com/platform/build/soong/+/refs/heads/main/cc/config/tidy.go).
 
 
 ## Module clang-tidy properties
@@ -34,7 +34,7 @@
 ### `tidy`, `tidy_checks`, and `ALLOW_LOCAL_TIDY_TRUE`
 
 For example, in
-[system/bpf/Android.bp](https://android.googlesource.com/platform/system/bpf/+/refs/heads/master/Android.bp),
+[system/bpf/Android.bp](https://android.googlesource.com/platform/system/bpf/+/refs/heads/main/Android.bp),
 clang-tidy is enabled explicitly and with a different check list:
 ```
 cc_defaults {
@@ -69,7 +69,7 @@
 Some modules might want to disable clang-tidy even when
 environment variable `WITH_TIDY=1` is set.
 Examples can be found in
-[system/netd/tests/Android.bp](https://android.googlesource.com/platform/system/netd/+/refs/heads/master/tests/Android.bp)
+[system/netd/tests/Android.bp](https://android.googlesource.com/platform/system/netd/+/refs/heads/main/tests/Android.bp)
 ```
 cc_test {
     name: "netd_integration_test",
@@ -78,7 +78,7 @@
     tidy: false,  // cuts test build time by almost 1 minute
 ```
 and in
-[bionic/tests/Android.bp](https://android.googlesource.com/platform/bionic/+/refs/heads/master/tests/Android.bp).
+[bionic/tests/Android.bp](https://android.googlesource.com/platform/bionic/+/refs/heads/main/tests/Android.bp).
 ```
 cc_test_library {
     name: "fortify_disabled_for_tidy",
@@ -97,7 +97,7 @@
 If a C/C++ module wants to be free of certain clang-tidy warnings,
 it can chose those checks to be treated as errors.
 For example
-[system/core/libsysutils/Android.bp](https://android.googlesource.com/platform/system/core/+/refs/heads/master/libsysutils/Android.bp)
+[system/core/libsysutils/Android.bp](https://android.googlesource.com/platform/system/core/+/refs/heads/main/libsysutils/Android.bp)
 has enabled clang-tidy explicitly, selected its own tidy checks,
 and set three groups of tidy checks as errors:
 ```
@@ -130,7 +130,7 @@
 
 Some other tidy flags examples are `-format-style=` and `-header-filter=`
 For example, in
-[art/odrefresh/Android.bp](https://android.googlesource.com/platform/art/+/refs/heads/master/odrefresh/Android.bp),
+[art/odrefresh/Android.bp](https://android.googlesource.com/platform/art/+/refs/heads/main/odrefresh/Android.bp),
 we found
 ```
 cc_defaults {
diff --git a/linkerconfig/linkerconfig.go b/linkerconfig/linkerconfig.go
index 8b52d86..78b62d9 100644
--- a/linkerconfig/linkerconfig.go
+++ b/linkerconfig/linkerconfig.go
@@ -140,7 +140,7 @@
 
 // linker_config generates protobuf file from json file. This protobuf file will be used from
 // linkerconfig while generating ld.config.txt. Format of this file can be found from
-// https://android.googlesource.com/platform/system/linkerconfig/+/master/README.md
+// https://android.googlesource.com/platform/system/linkerconfig/+/main/README.md
 func LinkerConfigFactory() android.Module {
 	m := &linkerConfig{}
 	m.AddProperties(&m.properties)
diff --git a/linkerconfig/proto/linker_config.proto b/linkerconfig/proto/linker_config.proto
index dccf311..fcbd1c5 100644
--- a/linkerconfig/proto/linker_config.proto
+++ b/linkerconfig/proto/linker_config.proto
@@ -16,7 +16,7 @@
 
 // This format file defines configuration file for linkerconfig. Details on this
 // format can be found from
-// https://android.googlesource.com/platform/system/linkerconfig/+/master/README.md
+// https://android.googlesource.com/platform/system/linkerconfig/+/main/README.md
 
 syntax = "proto3";
 
diff --git a/ui/build/path.go b/ui/build/path.go
index 29128d8..51ebff1 100644
--- a/ui/build/path.go
+++ b/ui/build/path.go
@@ -180,7 +180,7 @@
 			// Compute the error message along with the process tree, including
 			// parents, for this log line.
 			procPrints := []string{
-				"See https://android.googlesource.com/platform/build/+/master/Changes.md#PATH_Tools for more information.",
+				"See https://android.googlesource.com/platform/build/+/main/Changes.md#PATH_Tools for more information.",
 			}
 			if len(log.Parents) > 0 {
 				procPrints = append(procPrints, "Process tree:")
diff --git a/ui/status/ninja_frontend/README b/ui/status/ninja_frontend/README
index 8c4b451..767bbf1 100644
--- a/ui/status/ninja_frontend/README
+++ b/ui/status/ninja_frontend/README
@@ -1,3 +1,3 @@
-This comes from https://android.googlesource.com/platform/external/ninja/+/master/src/frontend.proto
+This comes from https://android.googlesource.com/platform/external/ninja/+/main/src/frontend.proto
 
 The only difference is the specification of a go_package. To regenerate frontend.pb.go, run regen.sh.