diff --git a/package.json b/package.json
index d156154..4dd10e4 100644
--- a/package.json
+++ b/package.json
@@ -3,8 +3,8 @@
   "version": "0.0.0-development",
   "description": "⚙️ String manipulation library",
   "main": "dist/index.js",
-  "module": "dist/index.mjs",
-  "browser": "dist/str.js",
+  "module": "dist/index_es.mjs",
+  "browser": "dist/index_umd.js",
   "types": "types/index.d.ts",
   "scripts": {
     "test": "env TS_NODE_COMPILER_OPTIONS='{\"module\": \"commonjs\" }' nyc --reporter=lcov mocha './src/**/*.spec.ts' -r ts-node/register",
diff --git a/rollup.browser.config.js b/rollup.browser.config.js
index b6938ac..50bbdf5 100644
--- a/rollup.browser.config.js
+++ b/rollup.browser.config.js
@@ -7,7 +7,7 @@ export default {
   input: './src/index.ts',
   output: [
     {
-      file: pkg.browser,
+      file: './dist/str.js',
       format: 'iife',
       name: 'str',
       sourcemap: true
@@ -18,6 +18,12 @@ export default {
       name: 'str',
       plugins: [terser()],
       sourcemap: true
+    },
+    {
+      file: pkg.browser,
+      format: 'umd',
+      name: 'str',
+      plugins: [terser()],
     }
   ],
   external: [...Object.keys(pkg.dependencies || {})],
diff --git a/rollup.config.js b/rollup.config.js
index 5b68c31..30b28a3 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -23,16 +23,10 @@ export default {
     },
     {
       dir: './dist',
-      entryFileNames: '[name].mjs',
+      entryFileNames: '[name]_es.mjs',
       format: 'es',
       sourcemap: false
-      // esModule: false
     },
-    // {
-    //   file: pkg.browser,
-    //   format: 'iife',
-    //   name: 'str'
-    // }
   ],
   external: [...Object.keys(pkg.dependencies || {})],
   plugins: [
@@ -52,7 +46,7 @@ export default {
           transform: (contents) => {
             const p = JSON.parse(contents.toString('utf8'))
             p.main = p.main.replace('dist/', '')
-            p.module = p.module.replace('dist/', '')
+            // p.module = p.module.replace('dist/', '')
             p.browser = p.browser.replace('dist/', '')
             return JSON.stringify(p, null, 2)
           }