diff --git a/doc/appengine/src/crashpad-home/main.go b/doc/appengine/src/crashpad-home/main.go
index 5ce7d0ab..74830d42 100644
--- a/doc/appengine/src/crashpad-home/main.go
+++ b/doc/appengine/src/crashpad-home/main.go
@@ -41,29 +41,29 @@ func init() {
 func handler(w http.ResponseWriter, r *http.Request) {
 	const (
 		baseURL             = "https://chromium.googlesource.com/crashpad/crashpad/+/"
-		masterBaseURL       = baseURL + "master/"
+		mainBaseURL         = baseURL + "main/"
 		generatedDocBaseURL = baseURL + "doc/doc/generated/?format=TEXT"
 		bugBaseURL          = "https://bugs.chromium.org/p/crashpad/"
 	)
 
 	redirectMap := map[string]string{
-		"/":                                masterBaseURL + "README.md",
+		"/":                                mainBaseURL + "README.md",
 		"/bug":                             bugBaseURL,
 		"/bug/":                            bugBaseURL,
 		"/bug/new":                         bugBaseURL + "issues/entry",
-		"/doc/developing.html":             masterBaseURL + "/doc/developing.md",
-		"/doc/status.html":                 masterBaseURL + "/doc/status.md",
-		"/index.html":                      masterBaseURL + "README.md",
-		"/man":                             masterBaseURL + "doc/man.md",
-		"/man/":                            masterBaseURL + "doc/man.md",
-		"/man/catch_exception_tool.html":   masterBaseURL + "tools/mac/catch_exception_tool.md",
-		"/man/crashpad_database_util.html": masterBaseURL + "tools/crashpad_database_util.md",
-		"/man/crashpad_handler.html":       masterBaseURL + "handler/crashpad_handler.md",
-		"/man/exception_port_tool.html":    masterBaseURL + "tools/mac/exception_port_tool.md",
-		"/man/generate_dump.html":          masterBaseURL + "tools/generate_dump.md",
-		"/man/index.html":                  masterBaseURL + "doc/man.md",
-		"/man/on_demand_service_tool.html": masterBaseURL + "tools/mac/on_demand_service_tool.md",
-		"/man/run_with_crashpad.html":      masterBaseURL + "tools/mac/run_with_crashpad.md",
+		"/doc/developing.html":             mainBaseURL + "/doc/developing.md",
+		"/doc/status.html":                 mainBaseURL + "/doc/status.md",
+		"/index.html":                      mainBaseURL + "README.md",
+		"/man":                             mainBaseURL + "doc/man.md",
+		"/man/":                            mainBaseURL + "doc/man.md",
+		"/man/catch_exception_tool.html":   mainBaseURL + "tools/mac/catch_exception_tool.md",
+		"/man/crashpad_database_util.html": mainBaseURL + "tools/crashpad_database_util.md",
+		"/man/crashpad_handler.html":       mainBaseURL + "handler/crashpad_handler.md",
+		"/man/exception_port_tool.html":    mainBaseURL + "tools/mac/exception_port_tool.md",
+		"/man/generate_dump.html":          mainBaseURL + "tools/generate_dump.md",
+		"/man/index.html":                  mainBaseURL + "doc/man.md",
+		"/man/on_demand_service_tool.html": mainBaseURL + "tools/mac/on_demand_service_tool.md",
+		"/man/run_with_crashpad.html":      mainBaseURL + "tools/mac/run_with_crashpad.md",
 	}
 
 	ctx := appengine.NewContext(r)
diff --git a/doc/developing.md b/doc/developing.md
index a4017fb7..06dec03e 100644
--- a/doc/developing.md
+++ b/doc/developing.md
@@ -28,7 +28,7 @@ other projects, Crashpad uses
 [mini_chromium](https://chromium.googlesource.com/chromium/mini_chromium/), a
 small, self-contained library that provides many of Chromium’s useful low-level
 base routines. [mini_chromium’s
-README](https://chromium.googlesource.com/chromium/mini_chromium/+/master/README.md)
+README](https://chromium.googlesource.com/chromium/mini_chromium/+/main/README.md)
 provides more detail.
 
 ## Prerequisites
@@ -153,7 +153,7 @@ suitable location. These instructions assume that it’s been expanded to
 
 Note that Chrome uses Android API level 21 for both 64-bit platforms and
 32-bit platforms. See Chrome’s
-[`build/config/android/config.gni`](https://chromium.googlesource.com/chromium/src/+/master/build/config/android/config.gni)
+[`build/config/android/config.gni`](https://chromium.googlesource.com/chromium/src/+/main/build/config/android/config.gni)
 which sets `android32_ndk_api_level` and `android64_ndk_api_level`.
 
 Set these gn args
@@ -241,7 +241,7 @@ $ ZIRCON_NODENAME=scare-brook-skip-dried python build/run_tests.py out/fuchsia
 ## Contributing
 
 Crashpad’s contribution process is very similar to [Chromium’s contribution
-process](https://chromium.googlesource.com/chromium/src/+/master/docs/contributing.md).
+process](https://chromium.googlesource.com/chromium/src/+/main/docs/contributing.md).
 
 ### Code Review
 
@@ -250,7 +250,7 @@ review is conducted on [Chromium’s
 Gerrit](https://chromium-review.googlesource.com/) system, and all code reviews
 must be sent to an appropriate reviewer, with a Cc sent to
 [crashpad-dev](https://groups.google.com/a/chromium.org/group/crashpad-dev). The
-[`codereview.settings`](https://chromium.googlesource.com/crashpad/crashpad/+/master/codereview.settings)
+[`codereview.settings`](https://chromium.googlesource.com/crashpad/crashpad/+/main/codereview.settings)
 file specifies this environment to `git-cl`.
 
 `git-cl` is part of the
@@ -259,7 +259,7 @@ no need to install it separately.
 
 ```
 $ cd ~/crashpad/crashpad
-$ git checkout -b work_branch origin/master
+$ git checkout -b work_branch origin/main
 …do some work…
 $ git add …
 $ git commit
@@ -280,7 +280,7 @@ patch set with `git cl upload` and let your reviewer know you’ve addressed the
 feedback.
 
 The most recently uploaded patch set on a review may be tested on a
-[trybot](https://chromium.googlesource.com/chromium/src/+/master/docs/infra/trybot_usage.md)
+[trybot](https://chromium.googlesource.com/chromium/src/+/main/docs/infra/trybot_usage.md)
 by running `git cl try` or by clicking the “CQ Dry Run” button in Gerrit. These
 set the “Commit-Queue: +1” label. This does not mean that the patch will be
 committed, but the trybot and commit queue share infrastructure and a Gerrit
@@ -292,7 +292,7 @@ Crashpad and Chromium committers.
 
 After code review is complete and “Code-Review: +1” has been received from all
 reviewers, the patch can be submitted to Crashpad’s [commit
-queue](https://chromium.googlesource.com/chromium/src/+/master/docs/infra/cq.md)
+queue](https://chromium.googlesource.com/chromium/src/+/main/docs/infra/cq.md)
 by clicking the “Submit to CQ” button in Gerrit. This sets the “Commit-Queue:
 +2” label, which tests the patch on trybots before landing it. Commit queue
 access is available to Crashpad and Chromium committers.
@@ -314,9 +314,9 @@ Agreement](https://cla.developers.google.com/about/google-individual) or
 [Corporate Contributor License
 Agreement](https://cla.developers.google.com/about/google-corporate) as
 appropriate before any submission can be accepted, and must be listed in the
-[`AUTHORS`](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS)
+[`AUTHORS`](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS)
 file. Contributors may be listed in the
-[`CONTRIBUTORS`](https://chromium.googlesource.com/crashpad/crashpad/+/master/CONTRIBUTORS)
+[`CONTRIBUTORS`](https://chromium.googlesource.com/crashpad/crashpad/+/main/CONTRIBUTORS)
 file.
 
 ## Buildbot
diff --git a/doc/support/generate_git.sh b/doc/support/generate_git.sh
index 209c11b9..6a7c39f7 100755
--- a/doc/support/generate_git.sh
+++ b/doc/support/generate_git.sh
@@ -38,8 +38,8 @@ local_branch="\
 $(${sed_ext} -e 's/(.*)\..*/\1/' <<< "${basename}").${$}.${RANDOM}"
 
 remote_name=origin
-remote_master_branch_name=master
-remote_master_branch="${remote_name}/${remote_master_branch_name}"
+remote_main_branch_name=main
+remote_main_branch="${remote_name}/${remote_main_branch_name}"
 remote_doc_branch_name=doc
 remote_doc_branch="${remote_name}/${remote_doc_branch_name}"
 
@@ -61,9 +61,9 @@ function cleanup() {
 
 trap cleanup EXIT
 
-master_hash=$(git rev-parse --short=12 "${remote_master_branch}")
-git merge "${remote_master_branch}" \
-    -m "Merge ${remote_master_branch_name} ${master_hash} into doc"
+main_hash=$(git rev-parse --short=12 "${remote_main_branch}")
+git merge "${remote_main_branch}" \
+    -m "Merge ${remote_main_branch_name} ${main_hash} into doc"
 
 dirty=y
 
@@ -74,7 +74,7 @@ git add -A doc/generated
 count="$(git diff --staged --numstat | wc -l)"
 if [[ $count -gt 0 ]]; then
   git commit \
-      -m "Update documentation to ${remote_master_branch_name} ${master_hash}"
+      -m "Update documentation to ${remote_main_branch_name} ${main_hash}"
   dirty=
 
   git push "${remote_name}" "HEAD:${remote_doc_branch_name}"
diff --git a/handler/crashpad_handler.md b/handler/crashpad_handler.md
index 6d055ed1..30d4e687 100644
--- a/handler/crashpad_handler.md
+++ b/handler/crashpad_handler.md
@@ -332,7 +332,7 @@ Report bugs at https://crashpad.chromium.org/bug/new.
 ## Copyright
 
 Copyright 2014 [The Crashpad
-Authors](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS).
+Authors](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS).
 
 ## License
 
diff --git a/tools/base94_encoder.md b/tools/base94_encoder.md
index 292c7a63..25f2ddde 100644
--- a/tools/base94_encoder.md
+++ b/tools/base94_encoder.md
@@ -83,7 +83,7 @@ Report bugs at https://crashpad.chromium.org/bug/new.
 ## Copyright
 
 Copyright 2020 [The Crashpad
-Authors](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS).
+Authors](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS).
 
 ## License
 
diff --git a/tools/crashpad_database_util.md b/tools/crashpad_database_util.md
index a63d9a68..d02b8709 100644
--- a/tools/crashpad_database_util.md
+++ b/tools/crashpad_database_util.md
@@ -191,7 +191,7 @@ Report bugs at https://crashpad.chromium.org/bug/new.
 ## Copyright
 
 Copyright 2015 [The Crashpad
-Authors](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS).
+Authors](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS).
 
 ## License
 
diff --git a/tools/crashpad_http_upload.md b/tools/crashpad_http_upload.md
index 93b87522..90a200e7 100644
--- a/tools/crashpad_http_upload.md
+++ b/tools/crashpad_http_upload.md
@@ -115,7 +115,7 @@ Report bugs at https://crashpad.chromium.org/bug/new.
 ## Copyright
 
 Copyright 2017 [The Crashpad
-Authors](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS).
+Authors](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS).
 
 ## License
 
diff --git a/tools/generate_dump.md b/tools/generate_dump.md
index c58ecbc3..0d10d11e 100644
--- a/tools/generate_dump.md
+++ b/tools/generate_dump.md
@@ -110,7 +110,7 @@ Report bugs at https://crashpad.chromium.org/bug/new.
 ## Copyright
 
 Copyright 2014 [The Crashpad
-Authors](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS).
+Authors](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS).
 
 ## License
 
diff --git a/tools/mac/catch_exception_tool.md b/tools/mac/catch_exception_tool.md
index 3c71decf..699b0945 100644
--- a/tools/mac/catch_exception_tool.md
+++ b/tools/mac/catch_exception_tool.md
@@ -123,7 +123,7 @@ Report bugs at https://crashpad.chromium.org/bug/new.
 ## Copyright
 
 Copyright 2014 [The Crashpad
-Authors](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS).
+Authors](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS).
 
 ## License
 
diff --git a/tools/mac/exception_port_tool.md b/tools/mac/exception_port_tool.md
index 1743e420..5a14e971 100644
--- a/tools/mac/exception_port_tool.md
+++ b/tools/mac/exception_port_tool.md
@@ -217,7 +217,7 @@ Report bugs at https://crashpad.chromium.org/bug/new.
 ## Copyright
 
 Copyright 2014 [The Crashpad
-Authors](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS).
+Authors](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS).
 
 ## License
 
diff --git a/tools/mac/on_demand_service_tool.md b/tools/mac/on_demand_service_tool.md
index 5a850352..894f7434 100644
--- a/tools/mac/on_demand_service_tool.md
+++ b/tools/mac/on_demand_service_tool.md
@@ -116,7 +116,7 @@ Report bugs at https://crashpad.chromium.org/bug/new.
 ## Copyright
 
 Copyright 2014 [The Crashpad
-Authors](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS).
+Authors](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS).
 
 ## License
 
diff --git a/tools/run_with_crashpad.md b/tools/run_with_crashpad.md
index 9758f9af..3aafea3b 100644
--- a/tools/run_with_crashpad.md
+++ b/tools/run_with_crashpad.md
@@ -130,7 +130,7 @@ Report bugs at https://crashpad.chromium.org/bug/new.
 ## Copyright
 
 Copyright 2014 [The Crashpad
-Authors](https://chromium.googlesource.com/crashpad/crashpad/+/master/AUTHORS).
+Authors](https://chromium.googlesource.com/crashpad/crashpad/+/main/AUTHORS).
 
 ## License