diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f0cd08796e6..6fbacad1911 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,7 +3,9 @@
 
 name: Node.js CI
 
-on: [pull_request]
+on:
+  pull_request:
+  workflow_call:
 
 permissions:
   contents: read
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 00000000000..194573bdd4b
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,93 @@
+name: Publish to npm
+
+on:
+  workflow_dispatch:
+    inputs:
+      dry_run:
+        description: 'Dry run'
+        required: false
+        default: false
+        type: boolean
+
+permissions:
+  contents: write
+  id-token: write
+
+jobs:
+  ci:
+    uses: ./.github/workflows/build.yml
+
+  publish:
+    needs: ci
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v5
+        with:
+          node-version: 22.x
+          registry-url: 'https://registry.npmjs.org'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Determine version bump
+        id: bump
+        working-directory: packages/blockly
+        run: |
+          RELEASE_TYPE=$(npx conventional-recommended-bump --preset conventionalcommits)
+          echo "release_type=$RELEASE_TYPE" >> "$GITHUB_OUTPUT"
+          echo "Recommended bump: $RELEASE_TYPE"
+
+      - name: Apply version bump
+        working-directory: packages/blockly
+        run: npm version ${{ steps.bump.outputs.release_type }} --no-git-tag-version
+
+      - name: Read new version
+        id: version
+        working-directory: packages/blockly
+        run: |
+          VERSION=$(node -p "require('./package.json').version")
+          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
+          echo "New version: $VERSION"
+
+      - name: Commit and push version bump
+        if: ${{ !inputs.dry_run }}
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git add packages/blockly/package.json package-lock.json
+          git commit -m "chore: release v${{ steps.version.outputs.version }}"
+          git push
+
+      - name: Build package
+        if: ${{ !inputs.dry_run }}
+        working-directory: packages/blockly
+        run: npm run package
+
+      - name: Publish to npm
+        if: ${{ !inputs.dry_run }}
+        working-directory: packages/blockly/dist
+        run: npm publish
+
+      - name: Create tarball
+        if: ${{ !inputs.dry_run }}
+        working-directory: packages/blockly
+        run: npm pack ./dist
+
+      - name: Create GitHub release
+        if: ${{ !inputs.dry_run }}
+        working-directory: packages/blockly
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          TARBALL=$(ls blockly-*.tgz)
+          gh release create "blockly-v${{ steps.version.outputs.version }}" "$TARBALL" \
+            --repo "$GITHUB_REPOSITORY" \
+            --title "blockly-v${{ steps.version.outputs.version }}" \
+            --generate-notes
diff --git a/package-lock.json b/package-lock.json
index 1eb2975365b..778b4aafc8b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -298,6 +298,62 @@
         "node": ">=v18"
       }
     },
+    "node_modules/@conventional-changelog/git-client": {
+      "version": "2.6.0",
+      "resolved": "https://registry.npmjs.org/@conventional-changelog/git-client/-/git-client-2.6.0.tgz",
+      "integrity": "sha512-T+uPDciKf0/ioNNDpMGc8FDsehJClZP0yR3Q5MN6wE/Y/1QZ7F+80OgznnTCOlMEG4AV0LvH2UJi3C/nBnaBUg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@simple-libs/child-process-utils": "^1.0.0",
+        "@simple-libs/stream-utils": "^1.2.0",
+        "semver": "^7.5.2"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "peerDependencies": {
+        "conventional-commits-filter": "^5.0.0",
+        "conventional-commits-parser": "^6.3.0"
+      },
+      "peerDependenciesMeta": {
+        "conventional-commits-filter": {
+          "optional": true
+        },
+        "conventional-commits-parser": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@simple-libs/child-process-utils": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@simple-libs/child-process-utils/-/child-process-utils-1.0.2.tgz",
+      "integrity": "sha512-/4R8QKnd/8agJynkNdJmNw2MBxuFTRcNFnE5Sg/G+jkSsV8/UBgULMzhizWWW42p8L5H7flImV2ATi79Ove2Tw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@simple-libs/stream-utils": "^1.2.0"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://ko-fi.com/dangreen"
+      }
+    },
+    "node_modules/@simple-libs/stream-utils": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@simple-libs/stream-utils/-/stream-utils-1.2.0.tgz",
+      "integrity": "sha512-KxXvfapcixpz6rVEB6HPjOUZT22yN6v0vI0urQSk1L8MlEWPDFCZkhw2xmkyoTGYeFw7tWTZd7e3lVzRZRN/EA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://ko-fi.com/dangreen"
+      }
+    },
     "node_modules/@types/conventional-commits-parser": {
       "version": "5.0.2",
       "resolved": "https://registry.npmjs.org/@types/conventional-commits-parser/-/conventional-commits-parser-5.0.2.tgz",
@@ -514,6 +570,26 @@
         "node": ">=16"
       }
     },
+    "node_modules/conventional-changelog-preset-loader": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/conventional-changelog-preset-loader/-/conventional-changelog-preset-loader-5.0.0.tgz",
+      "integrity": "sha512-SetDSntXLk8Jh1NOAl1Gu5uLiCNSYenB5tm0YVeZKePRIgDW9lQImromTwLa3c/Gae298tsgOM+/CYT9XAl0NA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/conventional-commits-filter": {
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/conventional-commits-filter/-/conventional-commits-filter-5.0.0.tgz",
+      "integrity": "sha512-tQMagCOC59EVgNZcC5zl7XqO30Wki9i9J3acbUvkaosCT6JX3EeFwJD7Qqp4MCikRnzS18WXV3BLIQ66ytu6+Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/conventional-commits-parser": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/conventional-commits-parser/-/conventional-commits-parser-5.0.0.tgz",
@@ -533,6 +609,56 @@
         "node": ">=16"
       }
     },
+    "node_modules/conventional-recommended-bump": {
+      "version": "11.2.0",
+      "resolved": "https://registry.npmjs.org/conventional-recommended-bump/-/conventional-recommended-bump-11.2.0.tgz",
+      "integrity": "sha512-lqIdmw330QdMBgfL0e6+6q5OMKyIpy4OZNmepit6FS3GldhkG+70drZjuZ0A5NFpze5j85dlYs3GabQXl6sMHw==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@conventional-changelog/git-client": "^2.5.1",
+        "conventional-changelog-preset-loader": "^5.0.0",
+        "conventional-commits-filter": "^5.0.0",
+        "conventional-commits-parser": "^6.1.0",
+        "meow": "^13.0.0"
+      },
+      "bin": {
+        "conventional-recommended-bump": "dist/cli/index.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/conventional-recommended-bump/node_modules/conventional-commits-parser": {
+      "version": "6.3.0",
+      "resolved": "https://registry.npmjs.org/conventional-commits-parser/-/conventional-commits-parser-6.3.0.tgz",
+      "integrity": "sha512-RfOq/Cqy9xV9bOA8N+ZH6DlrDR+5S3Mi0B5kACEjESpE+AviIpAptx9a9cFpWCCvgRtWT+0BbUw+e1BZfts9jg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@simple-libs/stream-utils": "^1.2.0",
+        "meow": "^13.0.0"
+      },
+      "bin": {
+        "conventional-commits-parser": "dist/cli/index.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
+    "node_modules/conventional-recommended-bump/node_modules/meow": {
+      "version": "13.2.0",
+      "resolved": "https://registry.npmjs.org/meow/-/meow-13.2.0.tgz",
+      "integrity": "sha512-pxQJQzB6djGPXh08dacEloMFopsOqGVRKFPYvPOt9XDZ1HasbgDZA74CJGreSU4G3Ak7EFJGoiH2auq+yXISgA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/cosmiconfig": {
       "version": "9.0.0",
       "resolved": "https://registry.npmjs.org/cosmiconfig/-/cosmiconfig-9.0.0.tgz",
@@ -1490,6 +1616,8 @@
         "async-done": "^2.0.0",
         "chai": "^6.0.1",
         "concurrently": "^9.0.1",
+        "conventional-changelog-conventionalcommits": "^7.0.2",
+        "conventional-recommended-bump": "^11.2.0",
         "eslint": "^9.15.0",
         "eslint-config-google": "^0.14.0",
         "eslint-config-prettier": "^10.1.1",
diff --git a/packages/blockly/package.json b/packages/blockly/package.json
index 168d415b3c4..52d5085e277 100644
--- a/packages/blockly/package.json
+++ b/packages/blockly/package.json
@@ -111,6 +111,8 @@
     "async-done": "^2.0.0",
     "chai": "^6.0.1",
     "concurrently": "^9.0.1",
+    "conventional-changelog-conventionalcommits": "^7.0.2",
+    "conventional-recommended-bump": "^11.2.0",
     "eslint": "^9.15.0",
     "eslint-config-google": "^0.14.0",
     "eslint-config-prettier": "^10.1.1",