diff --git a/.github/workflows/extract-translations.yml b/.github/workflows/extract-translations.yml
new file mode 100644
index 000000000..7b50e6937
--- /dev/null
+++ b/.github/workflows/extract-translations.yml
@@ -0,0 +1,47 @@
+# GitHub Action to extract translations and (later) upload them to Crowdin.
+
+name: Extract translations
+on:
+  # Execute for all commits (to ensure translations extraction works)
+  push:
+  # Allows to run this workflow manually from the Actions tab.
+  workflow_dispatch:
+
+jobs:
+  extract-translations:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      # Cache npm dependencies to speed up the workflow
+      - name: Cache node modules
+        uses: actions/cache@v2
+        env:
+          cache-name: cache-newIDE-app-node_modules
+        with:
+          # npm cache files are stored in `~/.npm` on Linux/macOS
+          path: ~/.npm
+          key: ${{ runner.os }}-${{ env.cache-name }}-${{ hashFiles('newIDE/app/package-lock.json') }}
+
+      - name: Install gettext
+        run: sudo apt update && sudo apt install gettext -y
+
+      - name: Install newIDE dependencies
+        run: npm install
+        working-directory: newIDE/app
+
+      - name: Extract translations
+        run: npm run extract-all-translations
+        working-directory: newIDE/app
+
+      # Only upload on Crowdin for the master branch
+      - name: Install Crowdin CLI
+        if: github.ref == 'refs/heads/master'
+        run: npm i -g @crowdin/cli
+        
+      - name: Upload translations to Crowdin
+        run: crowdin upload sources
+        if: github.ref == 'refs/heads/master'
+        env:
+          CROWDIN_PROJECT_ID: ${{ secrets.CROWDIN_PROJECT_ID }}
+          CROWDIN_PERSONAL_TOKEN: ${{ secrets.CROWDIN_PERSONAL_TOKEN }}
diff --git a/crowdin.yml b/crowdin.yml
new file mode 100644
index 000000000..145691a7a
--- /dev/null
+++ b/crowdin.yml
@@ -0,0 +1,22 @@
+'project_id_env': 'CROWDIN_PROJECT_ID'
+'api_token_env': 'CROWDIN_PERSONAL_TOKEN'
+'base_path': '.'
+'base_url': 'https://api.crowdin.com'
+
+# Flatten files in Crowdin
+'preserve_hierarchy': false
+
+# "Source" files, which are .POT files extracted from the source code.
+# The built files are .PO files that are the compiled by `compile-translations`
+# script in `newIDE/app/scripts`.
+files:
+  [
+    {
+      'source': 'newIDE/app/src/locales/en/ide-messages.pot',
+      'translation': 'newIDE/app/src/locales/%locale_with_underscore%/ide-messages.po',
+    },
+    {
+      'source': 'scripts/gdcore-gdcpp-gdjs-extensions-messages.pot',
+      'translation': 'newIDE/app/src/locales/%locale_with_underscore%/gdcore-gdcpp-gdjs-extensions-messages.po',
+    },
+  ]
diff --git a/newIDE/app/package-lock.json b/newIDE/app/package-lock.json
index d2b3ae6c9..e654905aa 100644
--- a/newIDE/app/package-lock.json
+++ b/newIDE/app/package-lock.json
@@ -15015,6 +15015,12 @@
         }
       }
     },
+    "babel-core": {
+      "version": "7.0.0-bridge.0",
+      "resolved": "https://registry.npmjs.org/babel-core/-/babel-core-7.0.0-bridge.0.tgz",
+      "integrity": "sha512-poPX9mZH/5CSanm50Q+1toVci6pv5KSRv/5TWCwtzQS5XEwn40BcCrgIeMFWP9CKKIniKXNxoIOnOq4VVlGXhg==",
+      "dev": true
+    },
     "babel-eslint": {
       "version": "10.0.3",
       "resolved": "https://registry.npmjs.org/babel-eslint/-/babel-eslint-10.0.3.tgz",
diff --git a/newIDE/app/package.json b/newIDE/app/package.json
index b60236149..25bd25995 100644
--- a/newIDE/app/package.json
+++ b/newIDE/app/package.json
@@ -10,6 +10,7 @@
     "@storybook/addon-essentials": "6.3.8",
     "@storybook/react": "6.3.8",
     "axios-mock-adapter": "^1.19.0",
+    "babel-core": "^7.0.0-bridge.0",
     "babel-loader": "8.0.6",
     "flow-bin": "0.131.0",
     "flow-coverage-report": "^0.4.0",
diff --git a/newIDE/app/package.json.README.md b/newIDE/app/package.json.README.md
index a234573a9..25d48d46e 100644
--- a/newIDE/app/package.json.README.md
+++ b/newIDE/app/package.json.README.md
@@ -10,6 +10,8 @@ GDevelop relies on some dependencies that can have special requirements:
   - `babel-loader` is specified to be the exact version required by `react-scripts` (because `react-scripts` wants the exact version and will complain if forced to use the `babel-loader` of Storybook).
   - **Try removing these extra `devDependencies`** if you upgrade Storybook or Create React App.
 
+- `"babel-core": "^7.0.0-bridge.0"` is needed for js-lingui `lingui extract` command (who runs Babel on source files).
+
 - **`react-dnd`** is used by `react-mosaic-component` and `react-sortable-tree` (but not `react-sortable-hoc`). Both must be using **the same versions** of `react-dnd` and `react-dnd-html5-backend`. Otherwise, you get blanks/not rendered components.
 
 > You can check if there is only one version of a package by doing `npm ls` or `yarn why`:
diff --git a/newIDE/app/scripts/extract-all-translations.js b/newIDE/app/scripts/extract-all-translations.js
index 7d6964807..9c5adace9 100644
--- a/newIDE/app/scripts/extract-all-translations.js
+++ b/newIDE/app/scripts/extract-all-translations.js
@@ -12,24 +12,29 @@ let hasErrors = false;
 // Clean existing English messages catalog, if any
 const enMessagesJsPath = path.join(newIdeAppPath, 'src/locales/en/messages.js');
 if (fs.existsSync(enMessagesJsPath)) {
-  shell.echo(`ℹ️ Removing ${enMessagesJsPath} as "en" should not have any translations ("pot" file)`);
+  shell.echo(
+    `ℹ️ Removing ${enMessagesJsPath} as "en" should not have any translations ("pot" file)`
+  );
   shell.rm(enMessagesJsPath);
 }
-const enIdeMessagesPotPath = path.join(newIdeAppPath, 'src/locales/en/ide-messages.pot');
+const enIdeMessagesPotPath = path.join(
+  newIdeAppPath,
+  'src/locales/en/ide-messages.pot'
+);
 if (fs.existsSync(enIdeMessagesPotPath)) {
-  shell.echo(`ℹ️ Removing ${enIdeMessagesPotPath} as "en" should not have any translations ("pot" file)`);
+  shell.echo(
+    `ℹ️ Removing ${enIdeMessagesPotPath} as "en" should not have any translations ("pot" file)`
+  );
   shell.rm(enIdeMessagesPotPath);
 }
 
 // Launch "lingui extract" for extracting newIDE translations
 shell.echo('ℹ️ Extracting translations for newIDE...');
 
-hasErrors |= shell.exec(
-  'node node_modules/.bin/lingui extract --clean --overwrite',
-  {
+hasErrors |=
+  shell.exec('node node_modules/.bin/lingui extract --clean --overwrite', {
     cwd: newIdeAppPath,
-  }
-).stderr;
+  }).code !== 0;
 
 shell.echo('ℹ️ Renaming extracted translations to ide-messages.po...');
 getLocales().then(locales =>
@@ -53,17 +58,20 @@ shell.echo(
   'ℹ️ Extracting translations for GDCore/GDJS/Extensions to scripts/gdcore-gdcpp-gdjs-extensions-messages.pot...'
 );
 if (isWin) {
-  hasErrors |= shell.exec('ExtractTranslations.bat', {
-    cwd: gdScriptsPath,
-  }).stderr;
+  hasErrors |=
+    shell.exec('ExtractTranslations.bat', {
+      cwd: gdScriptsPath,
+    }).code !== 0;
 } else {
-  hasErrors |= shell.exec('./ExtractTranslations.sh ', {
-    cwd: gdScriptsPath,
-  }).stderr;
+  hasErrors |=
+    shell.exec('./ExtractTranslations.sh ', {
+      cwd: gdScriptsPath,
+    }).code !== 0;
 }
 
 if (!hasErrors) {
   shell.echo('✅ Translations extracted');
 } else {
   shell.echo(`❌ Error(s) occurred while extracting translations`);
+  shell.exit(1);
 }
diff --git a/newIDE/app/yarn.lock b/newIDE/app/yarn.lock
index 9e8c17ca5..5151f0ba7 100644
--- a/newIDE/app/yarn.lock
+++ b/newIDE/app/yarn.lock
@@ -4677,6 +4677,11 @@ babel-code-frame@^6.22.0:
     esutils "^2.0.2"
     js-tokens "^3.0.2"
 
+babel-core@^7.0.0-bridge.0:
+  version "7.0.0-bridge.0"
+  resolved "https://registry.yarnpkg.com/babel-core/-/babel-core-7.0.0-bridge.0.tgz#95a492ddd90f9b4e9a4a1da14eb335b87b634ece"
+  integrity sha512-poPX9mZH/5CSanm50Q+1toVci6pv5KSRv/5TWCwtzQS5XEwn40BcCrgIeMFWP9CKKIniKXNxoIOnOq4VVlGXhg==
+
 babel-eslint@10.0.3:
   version "10.0.3"
   resolved "https://registry.yarnpkg.com/babel-eslint/-/babel-eslint-10.0.3.tgz#81a2c669be0f205e19462fed2482d33e4687a88a"
diff --git a/scripts/ExtractTranslations.sh b/scripts/ExtractTranslations.sh
index 45dc6866c..95ba6c35e 100755
--- a/scripts/ExtractTranslations.sh
+++ b/scripts/ExtractTranslations.sh
@@ -1,5 +1,7 @@
 #Launch this script to generate the .POT file used
 #to update the strings to be translated.
+set -e
+
 echo "ℹ️ Listing all GDCore, GDJS and Extensions sources files to translate..."
 
 find ../GDJS/GDJS/ -name '*.cpp' | grep -v '/Dialogs/' > /tmp/listfile.txt
@@ -22,4 +24,5 @@ if type $GETTEXT 2>/dev/null; then
 	echo "ℹ️ Translation file 'gdcore-gdcpp-gdjs-extensions-messages.pot' generated and ready to be sent to Crowdin or used in a translation software like PoEdit."
 else
 	echo "❌ Unable to find xgettext on your system."
+	exit 1
 fi