diff --git a/.github/workflows/roll_chromium_tip_of_treebuild.yml b/.github/workflows/roll_chromium_tip_of_treebuild.yml
new file mode 100644
index 0000000000..c25c268c0a
--- /dev/null
+++ b/.github/workflows/roll_chromium_tip_of_treebuild.yml
@@ -0,0 +1,43 @@
+name: "PR: bump //browser_patches/chromium-tip-of-tree/BUILD_NUMBER"
+on:
+  workflow_dispatch:
+  schedule:
+    # At 10:00am UTC  (3AM PST) every tuesday and thursday to build new Chromium Tip-of-tree
+    - cron: "0 10 * * 2,4"
+jobs:
+  trigger-chromium-build:
+    name: Trigger Build
+    runs-on: ubuntu-20.04
+    steps:
+      - uses: actions/checkout@v2
+      - run: ./browser_patches/chromium-tip-of-tree/roll_to_current_tip_of_tree.sh
+      - name: Prepare branch
+        id: prepare-branch
+        run: |
+          if [[ "$(git status --porcelain)" == "" ]]; then
+              echo "there are no changes";
+              exit 0;
+          fi
+          echo "::set-output name=HAS_CHANGES::1"
+          CURRENT_DATE=$(date +%Y-%b-%d)
+          BRANCH_NAME="roll-chromium/${CURRENT_DATE}"
+          echo "::set-output name=BRANCH_NAME::$BRANCH_NAME"
+          echo "::set-output name=CURRENT_DATE::$CURRENT_DATE"
+          git config --global user.name github-actions
+          git config --global user.email 41898282+github-actions[bot]@users.noreply.github.com
+          git checkout -b "$BRANCH_NAME"
+          git add .
+          git commit -m "browser(chromium-tip-of-tree): roll to $CURRENT_DATE"
+          git push origin $BRANCH_NAME
+      - name: Create Pull Request
+        if: ${{ steps.prepare-branch.outputs.HAS_CHANGES == '1' }}
+        uses: actions/github-script@v4
+        with:
+          script: |
+            await github.pulls.create({
+              owner: 'microsoft',
+              repo: 'playwright',
+              head: 'microsoft:${{ steps.prepare-branch.outputs.BRANCH_NAME }}',
+              base: 'main',
+              title: 'browser(chromium-tip-of-tree): roll to ${{ steps.prepare-branch.outputs.CURRENT_DATE }}',
+            });
diff --git a/browser_patches/checkout_build_archive_upload.sh b/browser_patches/checkout_build_archive_upload.sh
index cd85b75648..794f7d8c64 100755
--- a/browser_patches/checkout_build_archive_upload.sh
+++ b/browser_patches/checkout_build_archive_upload.sh
@@ -119,6 +119,39 @@ elif [[ "$BUILD_FLAVOR" == "chromium-linux-arm64" ]]; then
   EXPECTED_HOST_OS_VERSION="20.04"
   BUILD_BLOB_NAME="chromium-linux-arm64.zip"
 
+# ===========================
+#    CHROMIUM-TIP-OF-TREE COMPILATION
+# ===========================
+elif [[ "$BUILD_FLAVOR" == "chromium-tip-of-tree-win64" ]]; then
+  BROWSER_NAME="chromium-tip-of-tree"
+  EXTRA_BUILD_ARGS="--full --goma"
+  EXPECTED_HOST_OS="MINGW"
+  BUILD_BLOB_NAME="chromium-tip-of-tree-win64.zip"
+elif [[ "$BUILD_FLAVOR" == "chromium-tip-of-tree-mac" ]]; then
+  BROWSER_NAME="chromium-tip-of-tree"
+  EXTRA_BUILD_ARGS="--full --goma"
+  EXPECTED_HOST_OS="Darwin"
+  EXPECTED_HOST_OS_VERSION="12.2"
+  BUILD_BLOB_NAME="chromium-tip-of-tree-mac.zip"
+elif [[ "$BUILD_FLAVOR" == "chromium-tip-of-tree-mac-arm64" ]]; then
+  BROWSER_NAME="chromium-tip-of-tree"
+  EXTRA_BUILD_ARGS="--arm64 --full --goma"
+  EXPECTED_HOST_OS="Darwin"
+  EXPECTED_HOST_OS_VERSION="12.2"
+  BUILD_BLOB_NAME="chromium-tip-of-tree-mac-arm64.zip"
+elif [[ "$BUILD_FLAVOR" == "chromium-tip-of-tree-linux" ]]; then
+  BROWSER_NAME="chromium-tip-of-tree"
+  EXTRA_BUILD_ARGS="--full --goma"
+  EXPECTED_HOST_OS="Ubuntu"
+  EXPECTED_HOST_OS_VERSION="18.04"
+  BUILD_BLOB_NAME="chromium-tip-of-tree-linux.zip"
+elif [[ "$BUILD_FLAVOR" == "chromium-tip-of-tree-linux-arm64" ]]; then
+  BROWSER_NAME="chromium-tip-of-tree"
+  EXTRA_BUILD_ARGS="--arm64 --full --goma"
+  EXPECTED_HOST_OS="Ubuntu"
+  EXPECTED_HOST_OS_VERSION="20.04"
+  BUILD_BLOB_NAME="chromium-tip-of-tree-linux-arm64.zip"
+
 # ===========================
 #    CHROMIUM-WITH-SYMBOLS COMPILATION
 # ===========================
diff --git a/browser_patches/chromium-tip-of-tree/BUILD_NUMBER b/browser_patches/chromium-tip-of-tree/BUILD_NUMBER
new file mode 100644
index 0000000000..83b33d238d
--- /dev/null
+++ b/browser_patches/chromium-tip-of-tree/BUILD_NUMBER
@@ -0,0 +1 @@
+1000
diff --git a/browser_patches/chromium-tip-of-tree/EXPECTED_BUILDS b/browser_patches/chromium-tip-of-tree/EXPECTED_BUILDS
new file mode 100644
index 0000000000..2575021ad4
--- /dev/null
+++ b/browser_patches/chromium-tip-of-tree/EXPECTED_BUILDS
@@ -0,0 +1,5 @@
+chromium-tip-of-tree-mac.zip
+chromium-tip-of-tree-mac-arm64.zip
+chromium-tip-of-tree-linux.zip
+chromium-tip-of-tree-linux-arm64.zip
+chromium-tip-of-tree-win64.zip
diff --git a/browser_patches/chromium-tip-of-tree/UPSTREAM_CONFIG.sh b/browser_patches/chromium-tip-of-tree/UPSTREAM_CONFIG.sh
new file mode 100644
index 0000000000..048765520f
--- /dev/null
+++ b/browser_patches/chromium-tip-of-tree/UPSTREAM_CONFIG.sh
@@ -0,0 +1,3 @@
+#      CURRENT_VERSION: 103.0.5015.0
+# BRANCH_BASE_POSITION: 994112
+BRANCH_COMMIT="4a39a9160f12d8e6ac06c37db137c49682c6db5a"
diff --git a/browser_patches/chromium-tip-of-tree/archive.sh b/browser_patches/chromium-tip-of-tree/archive.sh
new file mode 100755
index 0000000000..3e260dfb0a
--- /dev/null
+++ b/browser_patches/chromium-tip-of-tree/archive.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+set -e
+set +x
+
+trap "cd $(pwd -P)" EXIT
+cd "$(dirname "$0")"
+SCRIPT_FOLDER=$(pwd -P)
+
+bash "../chromium/archive.sh" "$@"
diff --git a/browser_patches/chromium-tip-of-tree/build.sh b/browser_patches/chromium-tip-of-tree/build.sh
new file mode 100755
index 0000000000..efc6479c61
--- /dev/null
+++ b/browser_patches/chromium-tip-of-tree/build.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+set -e
+set +x
+
+trap "cd $(pwd -P)" EXIT
+cd "$(dirname "$0")"
+SCRIPT_FOLDER=$(pwd -P)
+
+bash "../chromium/build.sh" "$@"
diff --git a/browser_patches/chromium-tip-of-tree/clean.sh b/browser_patches/chromium-tip-of-tree/clean.sh
new file mode 100755
index 0000000000..3ea4237e9c
--- /dev/null
+++ b/browser_patches/chromium-tip-of-tree/clean.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+set -e
+set +x
+
+trap "cd $(pwd -P)" EXIT
+cd "$(dirname "$0")"
+SCRIPT_FOLDER=$(pwd -P)
+
+bash "../chromium/clean.sh" "$@"
diff --git a/browser_patches/chromium-tip-of-tree/roll_to_current_tip_of_tree.sh b/browser_patches/chromium-tip-of-tree/roll_to_current_tip_of_tree.sh
new file mode 100755
index 0000000000..4ddf20bf32
--- /dev/null
+++ b/browser_patches/chromium-tip-of-tree/roll_to_current_tip_of_tree.sh
@@ -0,0 +1,32 @@
+#!/bin/bash
+set -e
+set +x
+
+trap "cd $(pwd -P)" EXIT
+cd "$(dirname "$0")"
+SCRIPT_FOLDER=$(pwd -P)
+
+# 1. get current version
+CURRENT_BETA_VERSION=$(curl https://omahaproxy.appspot.com/all | grep "win64,canary," | cut -d ',' -f 3)
+VERSION_INFO_JSON=$(curl "https://omahaproxy.appspot.com/deps.json?version=$CURRENT_BETA_VERSION")
+
+NODE_SCRIPT=$(cat <<EOF
+const json = JSON.parse(fs.readFileSync(0));
+console.log([
+  '#      CURRENT_VERSION: ' + json.chromium_version,
+  '# BRANCH_BASE_POSITION: ' + json.chromium_base_position,
+  'BRANCH_COMMIT="' + json.chromium_base_commit + '"',
+].join('\n'));
+EOF
+)
+NEW_CONFIG=$(echo "${VERSION_INFO_JSON}" | node -e "${NODE_SCRIPT}")
+CURRENT_CONFIG=$(cat "${SCRIPT_FOLDER}/UPSTREAM_CONFIG.sh")
+
+if [[ "${CURRENT_CONFIG}" == "${NEW_CONFIG}" ]]; then
+  echo "No changes!"
+  exit 0
+fi
+
+echo "${NEW_CONFIG}" > "${SCRIPT_FOLDER}/UPSTREAM_CONFIG.sh"
+BUILD_NUMBER=$(cat "${SCRIPT_FOLDER}/BUILD_NUMBER")
+echo $(( $BUILD_NUMBER + 1 )) > "${SCRIPT_FOLDER}/BUILD_NUMBER"
diff --git a/browser_patches/prepare_checkout.sh b/browser_patches/prepare_checkout.sh
index 7e7f3c04ee..1e8fe3b35d 100755
--- a/browser_patches/prepare_checkout.sh
+++ b/browser_patches/prepare_checkout.sh
@@ -39,7 +39,14 @@ function maybe_cmd {
 function prepare_chromium_checkout {
   cd "${SCRIPT_PATH}"
 
-  source "${SCRIPT_PATH}/chromium/UPSTREAM_CONFIG.sh"
+  if [[ $1 == "chromium" ]]; then
+    source "${SCRIPT_PATH}/chromium/UPSTREAM_CONFIG.sh"
+  elif [[ "$1" == "chromium-tot" ]]; then
+    source "${SCRIPT_PATH}/chromium-tip-of-tree/UPSTREAM_CONFIG.sh"
+  else
+    echo "ERROR: unknown type of checkout to prepare - $1"
+    exit 1
+  fi
   source "${SCRIPT_PATH}/chromium/ensure_depot_tools.sh"
 
   if [[ -z "${CR_CHECKOUT_PATH}" ]]; then
@@ -80,7 +87,10 @@ BUILD_NUMBER=""
 WEBKIT_EXTRA_FOLDER_PATH=""
 FIREFOX_EXTRA_FOLDER_PATH=""
 if [[ ("$1" == "chromium") || ("$1" == "chromium/") || ("$1" == "cr") ]]; then
-  prepare_chromium_checkout
+  prepare_chromium_checkout chromium
+  exit 0
+elif [[ ("$1" == "chromium-tip-of-tree") || ("$1" == "chromium-tot") || ("$1" == "cr-tot") ]]; then
+  prepare_chromium_checkout chromium-tot
   exit 0
 elif [[ ("$1" == "ffmpeg") || ("$1" == "ffmpeg/") ]]; then
   echo "FYI: ffmpeg checkout is not supported. Use '//browser_patches/ffmpeg/build.sh' instead"