diff --git a/demo.html b/demo.html
index 5f2fef8..852e35a 100644
--- a/demo.html
+++ b/demo.html
@@ -1,11 +1,10 @@
-<script src="./dist/standalone.umd.js"></script>
+<script src="./dist/esbuild.js"></script>
 <script src="./experimental/web-components.js"></script>
 
-
 <!--<atlas-viewer>-->
 <!--    <img src="https://images.unsplash.com/photo-1625045302658-947ad2a8008e?ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&ixlib=rb-1.2.1&auto=format&fit=crop&w=934&q=80" />-->
 <!--</atlas-viewer>-->
 
 <atlas-viewer>
-    <atlas-tiled-image src="https://iiif.bodleian.ox.ac.uk/iiif/image/5009dea1-d1ae-435d-a43d-453e3bad283f/info.json" />
+  <atlas-tiled-image src="https://iiif.bodleian.ox.ac.uk/iiif/image/5009dea1-d1ae-435d-a43d-453e3bad283f/info.json" />
 </atlas-viewer>
diff --git a/package.json b/package.json
index 07bffe3..488dae2 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "@hyperion-framework/types": "^1.0.0",
     "@hyperion-framework/vault": "^1.0.0",
     "@popmotion/popcorn": "^0.4.4",
-    "nanoid": "^3.1.9",
+    "nanoid": "^3.1.25",
     "normalize-wheel": "^1.0.1",
     "popmotion": "^8.7.6",
     "react": "^16.12.0",
@@ -59,6 +59,7 @@
     "@typescript-eslint/eslint-plugin": "^2.4.0",
     "@typescript-eslint/parser": "^2.4.0",
     "babel-loader": "^8.0.6",
+    "esbuild": "^0.12.23",
     "eslint": "^6.8.0",
     "eslint-plugin-babel": "^5.3.0",
     "eslint-plugin-flowtype": "^4.6.0",
diff --git a/tools/build.js b/tools/build.js
new file mode 100644
index 0000000..29cbd97
--- /dev/null
+++ b/tools/build.js
@@ -0,0 +1,38 @@
+const pkg = require('../package.json');
+
+require('esbuild')
+  .build({
+    // entryPoints: ['src/standalone.ts'],
+    entryPoints: ['src/index.ts'],
+    outfile: 'dist/esbuild.js',
+    bundle: true,
+    minify: false,
+    sourcemap: true,
+    format: 'esm',
+    target: ['chrome58', 'firefox57', 'safari11', 'edge18'],
+    globalName: 'Atlas',
+    define: {
+      'process.env.VERSION': JSON.stringify(pkg.version),
+      'process.env.NODE_ENV': '"production"',
+    },
+    external: [
+      // List of modules.
+      'react',
+      'typescript-memoize',
+      'stats.js',
+      'normalize-wheel',
+      'object-assign',
+      'scheduler',
+      'react-reconciler',
+      'debounce',
+      'react-dom',
+      'typesafe-actions',
+      'nanoid',
+      '@atlas-viewer/dna',
+      '@popmotion/popcorn',
+      'popmotion',
+      'react-use-measure',
+      '@hyperion-framework/vault',
+    ],
+  })
+  .catch(() => process.exit(1));
diff --git a/yarn.lock b/yarn.lock
index 83b606d..ac284d9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8191,6 +8191,11 @@ es6-symbol@^3.1.1, es6-symbol@~3.1.3:
     d "^1.0.1"
     ext "^1.1.2"
 
+esbuild@^0.12.23:
+  version "0.12.23"
+  resolved "https://registry.yarnpkg.com/esbuild/-/esbuild-0.12.23.tgz#fd40d70d3ec5e7893d8c5be655e3e38d096dd882"
+  integrity sha512-qvS4aKnmKikoWGscd5lVAzgobMovlH/JhaWitRiQ8xJx0x1Fym0pqVjMFs43Nvff8WpibeWm+fWoLK88T1U0Xw==
+
 escape-goat@^2.0.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/escape-goat/-/escape-goat-2.1.1.tgz#1b2dc77003676c457ec760b2dc68edb648188675"
@@ -13260,11 +13265,16 @@ nan@^2.12.1, nan@^2.13.2:
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.1.tgz#d7be34dfa3105b91494c3147089315eff8874b01"
   integrity sha512-isWHgVjnFjh2x2yuJ/tj3JbwoHu3UC2dX5G/88Cm24yB6YopVgxvBObDY7n5xW6ExmFhJpSEQqFPvq9zaXc8Jw==
 
-nanoid@^3.0.1, nanoid@^3.1.9:
+nanoid@^3.0.1:
   version "3.1.9"
   resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.9.tgz#1f148669c70bb2072dc5af0666e46edb6cd31fb2"
   integrity sha512-fFiXlFo4Wkuei3i6w9SQI6yuzGRTGi8Z2zZKZpUxv/bQlBi4jtbVPBSNFZHQA9PNjofWqtIa8p+pnsc0kgZrhQ==
 
+nanoid@^3.1.25:
+  version "3.1.25"
+  resolved "https://registry.yarnpkg.com/nanoid/-/nanoid-3.1.25.tgz#09ca32747c0e543f0e1814b7d3793477f9c8e152"
+  integrity sha512-rdwtIXaXCLFAQbnfqDRnI6jaRHp9fTcYBjtFKE8eezcZ7LuLjhUaQGNeMXf1HmRoCH32CLz6XwX0TtxEOS/A3Q==
+
 nanomatch@^1.2.9:
   version "1.2.13"
   resolved "https://registry.yarnpkg.com/nanomatch/-/nanomatch-1.2.13.tgz#b87a8aa4fc0de8fe6be88895b38983ff265bd119"