diff --git a/browser_patches/chromium/archive.sh b/browser_patches/chromium/archive.sh
index 30aeaac76a..041990acd1 100755
--- a/browser_patches/chromium/archive.sh
+++ b/browser_patches/chromium/archive.sh
@@ -62,15 +62,15 @@ function archive_compiled_chromium() {
 
   if [[ $1 == "--compile-mac"* ]]; then
     CHROMIUM_FOLDER_NAME="chrome-mac"
-    CHROMIUM_FILES_TO_ARCHIVE=("Chromium.app")
+    IFS=$'\n' CHROMIUM_FILES_TO_ARCHIVE=($(node "${SCRIPT_PATH}/compute_files_to_archive.js" "${CR_CHECKOUT_PATH}/src/infra/archive_config/mac-archive-rel.json"))
+    unset IFS
   elif [[ $1 == "--compile-linux"* ]]; then
     CHROMIUM_FOLDER_NAME="chrome-linux"
-    # Run python script and convert output to array.
-    IFS=$'\n' CHROMIUM_FILES_TO_ARCHIVE=($(python "${SCRIPT_PATH}/compute_files_to_archive.py" 64bit "${CR_CHECKOUT_PATH}/src/chrome/tools/build/linux/FILES.cfg"))
+    IFS=$'\n' CHROMIUM_FILES_TO_ARCHIVE=($(node "${SCRIPT_PATH}/compute_files_to_archive.js" "${CR_CHECKOUT_PATH}/src/infra/archive_config/linux-archive-rel.json"))
     unset IFS
   elif [[ $1 == "--compile-win64" ]]; then
     CHROMIUM_FOLDER_NAME="chrome-win"
-    IFS=$'\n\r' CHROMIUM_FILES_TO_ARCHIVE=($(python "${SCRIPT_PATH}/compute_files_to_archive.py" 64bit "${CR_CHECKOUT_PATH}/src/chrome/tools/build/win/FILES.cfg"))
+    IFS=$'\n\r' CHROMIUM_FILES_TO_ARCHIVE=($(node "${SCRIPT_PATH}/compute_files_to_archive.js" "${CR_CHECKOUT_PATH}/src/infra/archive_config/win-archive-rel.json"))
     unset IFS
   else
     echo "ERROR: unknown command, use --help for details"
diff --git a/browser_patches/chromium/compute_files_to_archive.js b/browser_patches/chromium/compute_files_to_archive.js
new file mode 100644
index 0000000000..d660794655
--- /dev/null
+++ b/browser_patches/chromium/compute_files_to_archive.js
@@ -0,0 +1,13 @@
+// This script is supposed to be run with a path to either of the following configs from chromium checkout:
+// - infra/archive_config/mac-archive-rel.json
+// - infra/archive_config/linux-archive-rel.json
+// - infra/archive_config/win-archive-rel.json
+
+const fs = require('fs');
+
+const configs = JSON.parse(fs.readFileSync(process.argv[2], 'utf8')).archive_datas;
+const config = configs.find(config => config.gcs_path.includes('chrome-linux.zip') || config.gcs_path.includes('chrome-win.zip') || config.gcs_path.includes('chrome-mac.zip'));
+for (const file of config.files || [])
+  console.log(file);
+for (const dir of config.dirs || [])
+  console.log(dir);
diff --git a/browser_patches/chromium/compute_files_to_archive.py b/browser_patches/chromium/compute_files_to_archive.py
deleted file mode 100755
index 1cb80cc51d..0000000000
--- a/browser_patches/chromium/compute_files_to_archive.py
+++ /dev/null
@@ -1,57 +0,0 @@
-#!/usr/bin/python
-
-import sys
-import json
-
-if len(sys.argv) < 2:
-    print("ERROR: expected arch: 32bit or 64bit")
-    sys.exit(1)
-
-if str(sys.argv[1]) == "--help" or str(sys.argv[1]) == "-h":
-    print("Usage: read_files.py [32bit|64bit] <files.cfg path>")
-    sys.exit(1)
-
-if len(sys.argv) < 3:
-    print("ERROR: expected FILE.cfg path")
-    sys.exit(1)
-
-exclude_list = [
-    # Windows exclude list
-    "chrome_child.dll",
-    "gaia1_0.dll",
-    "gcp_setup.exe",
-    "icudt.dll",
-    "interactive_ui_tests.exe",
-    "*.manifest",
-    # Linux exclude list
-    "session",
-]
-
-target_arch = sys.argv[1]
-file_name = sys.argv[2]
-
-descriptors=[]
-if sys.version_info > (3, 0):
-    exec(open(file_name).read())
-    descriptors = FILES
-else:
-    variables = {}
-    execfile(file_name, variables)
-    descriptors = variables['FILES']
-
-def filter_descriptors(entry):
-    if 'archive' in entry:
-        return False
-    if not 'buildtype' in entry:
-        return False
-    if not 'dev' in entry['buildtype']:
-        return False
-    if ('arch' in entry) and (entry['arch'] != target_arch):
-        return False
-    if entry['filename'] in exclude_list:
-        return False
-    return True
-
-for entry in filter(filter_descriptors, descriptors):
-    print(entry['filename'])
-