diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eb60ea38..23f943f6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,9 +3,9 @@ on:
   # Run on all pull requests.
 
   push:
-    # Run on merges/pushes to master.
+    # Run on merges/pushes to main.
     branches:
-      - master
+      - main
 
   schedule:
     # Run nightly, at midnight.
diff --git a/README.md b/README.md
index bbbe93ae..fc2c6942 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 <img width="350px" src="docs/artwork/draco3d-vert.svg" />
 </p>
 
-[![draco-ci](https://github.com/google/draco/workflows/draco-ci/badge.svg?branch=master)](https://github.com/google/draco/actions/workflows/ci.yml)
+[![draco-ci](https://github.com/google/draco/workflows/draco-ci/badge.svg?branch=main)](https://github.com/google/draco/actions/workflows/ci.yml)
 
 News
 =======
@@ -611,6 +611,6 @@ References
 [meshes]: https://en.wikipedia.org/wiki/Polygon_mesh
 [point clouds]: https://en.wikipedia.org/wiki/Point_cloud
 [Bunny]: https://graphics.stanford.edu/data/3Dscanrep/
-[CONTRIBUTING]: https://raw.githubusercontent.com/google/draco/master/CONTRIBUTING.md
+[CONTRIBUTING]: https://raw.githubusercontent.com/google/draco/main/CONTRIBUTING.md
 
 Bunny model from Stanford's graphic department <https://graphics.stanford.edu/data/3Dscanrep/>
diff --git a/docs/_layouts/home.html b/docs/_layouts/home.html
index 9510aec0..d6636d83 100644
--- a/docs/_layouts/home.html
+++ b/docs/_layouts/home.html
@@ -63,7 +63,7 @@
           <ul class="nav navbar-nav">
             <li><a href="https://github.com/google/draco">Github</a></li>
             <li><a href="https://storage.googleapis.com/demos.webmproject.org/draco/draco_loader_throw.html">Demo</a></li>
-            <li><a href="https://github.com/google/draco/tree/master/javascript/example">Example</a></li>
+            <li><a href="https://github.com/google/draco/tree/main/javascript/example">Example</a></li>
             <li class="dropdown">
               <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Spec <span class="caret"></span></a>
               <ul class="dropdown-menu">
diff --git a/docs/_layouts/spec-page.html b/docs/_layouts/spec-page.html
index 748c475f..f5ab16ea 100644
--- a/docs/_layouts/spec-page.html
+++ b/docs/_layouts/spec-page.html
@@ -78,7 +78,7 @@
           <ul class="nav navbar-nav">
             <li><a href="https://github.com/google/draco">Github</a></li>
             <li><a href="https://storage.googleapis.com/demos.webmproject.org/draco/draco_loader_throw.html">Demo</a></li>
-            <li><a href="https://github.com/google/draco/tree/master/javascript/example">Example</a></li>
+            <li><a href="https://github.com/google/draco/tree/main/javascript/example">Example</a></li>
             <li class="dropdown">
               <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Spec <span class="caret"></span></a>
               <ul class="dropdown-menu">
@@ -116,4 +116,4 @@
     <script src="{{ 'assets/js/ie10-viewport-bug-workaround.js' | relative_url }}"></script>
     {% include analytics.html %}
   </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/docs/spec/README.md b/docs/spec/README.md
index 32decf01..bf820246 100644
--- a/docs/spec/README.md
+++ b/docs/spec/README.md
@@ -112,23 +112,23 @@ $ git remote show origin
 * remote origin
   Fetch URL: git@github.com:<username>/draco.git
   Push  URL: git@github.com:<username>/draco.git
-  HEAD branch: master
+  HEAD branch: main
   Remote branch:
-    master tracked
+    main tracked
   Local branch configured for 'git pull':
-    master merges with remote master
+    main merges with remote main
   Local ref configured for 'git push':
-    master pushes to master (up to date)
+    main pushes to main (up to date)
 
 $ git remote show upstream
 * remote upstream
   Fetch URL: git@github.com:google/draco.git
   Push  URL: git@github.com:google/draco.git
-  HEAD branch: master
+  HEAD branch: main
   Remote branch:
-    master tracked
+    main tracked
   Local ref configured for 'git push':
-    master pushes to master (up to date)
+    main pushes to main (up to date)
 ~~~~~
 
 [**See this page**][1] for a longer discussion of managing remotes and general
@@ -242,13 +242,13 @@ Next, visit the `upstream` [homepage]. If you are logged-in, GitHub will be
 aware of your recently pushed branch, and offer an in-page widget for submitting
 a pull request for the project maintainers to consider.
 
-Once your pull request is merged into upstream's master branch, you may
+Once your pull request is merged into upstream's main branch, you may
 synchronize your clone (and remote `origin`) as follows:
 
 ~~~~~
-git co master
+git co main
 git fetch upstream
-git merge upstream/master
+git merge upstream/main
 git push origin
 ~~~~~
 
diff --git a/javascript/npm/draco3d/README.md b/javascript/npm/draco3d/README.md
index d5bbe863..98f7d5b8 100644
--- a/javascript/npm/draco3d/README.md
+++ b/javascript/npm/draco3d/README.md
@@ -1,6 +1,6 @@
 
 <p align="center">
-<img src="https://github.com/google/draco/raw/master/docs/DracoLogo.jpeg" />
+<img src="https://github.com/google/draco/raw/main/docs/DracoLogo.jpeg" />
 </p>
 
 News
diff --git a/javascript/npm/draco3dgltf/README.md b/javascript/npm/draco3dgltf/README.md
index 4c0f4304..3f982060 100644
--- a/javascript/npm/draco3dgltf/README.md
+++ b/javascript/npm/draco3dgltf/README.md
@@ -1,6 +1,6 @@
 
 <p align="center">
-<img src="https://github.com/google/draco/raw/master/docs/DracoLogo.jpeg" />
+<img src="https://github.com/google/draco/raw/main/docs/DracoLogo.jpeg" />
 </p>
 
 Description - glTF Draco Mesh Compression Extension