diff --git a/.github/workflows/test-noir-js.yml b/.github/workflows/test-noir-js.yml
index 907f10f49dd..f65650e43c0 100644
--- a/.github/workflows/test-noir-js.yml
+++ b/.github/workflows/test-noir-js.yml
@@ -47,7 +47,10 @@ jobs:
 
       - name: Build noirc_abi
         run: yarn workspace @noir-lang/noirc_abi build
-      
+
+      - name: Build noir_js_types
+        run: yarn workspace @noir-lang/types build
+
       - name: Build barretenberg wrapper
         run: yarn workspace @noir-lang/backend_barretenberg build
 
diff --git a/tooling/noir_js/src/program.ts b/tooling/noir_js/src/program.ts
index 0c129aa3a72..78a7df97294 100644
--- a/tooling/noir_js/src/program.ts
+++ b/tooling/noir_js/src/program.ts
@@ -1,6 +1,8 @@
 /* eslint-disable  @typescript-eslint/no-explicit-any */
 import { Backend, CompiledCircuit } from '@noir-lang/types';
 import { generateWitness } from './witness_generation.js';
+import initAbi from '@noir-lang/noirc_abi';
+import initACVM from '@noir-lang/acvm_js';
 
 export class Noir {
   constructor(
@@ -8,6 +10,15 @@ export class Noir {
     private backend: Backend,
   ) {}
 
+  async init(): Promise<void> {
+    // If these are available, then we are in the
+    // web environment. For the node environment, this
+    // is a no-op.
+    if (typeof initAbi === 'function') {
+      await Promise.all([initAbi(), initACVM()]);
+    }
+  }
+
   // Initial inputs to your program
   async generateFinalProof(inputs: any): Promise<Uint8Array> {
     const serializedWitness = await generateWitness(this.circuit, inputs);
diff --git a/tooling/noir_js_backend_barretenberg/src/serialize.ts b/tooling/noir_js_backend_barretenberg/src/serialize.ts
index af07913f3c6..b15931848a0 100644
--- a/tooling/noir_js_backend_barretenberg/src/serialize.ts
+++ b/tooling/noir_js_backend_barretenberg/src/serialize.ts
@@ -2,7 +2,7 @@ import { decompressSync as gunzip } from 'fflate';
 import { base64Decode } from './base64_decode.js';
 
 // Converts bytecode from a base64 string to a Uint8Array
-export function acirToUint8Array(base64EncodedBytecode): Uint8Array {
+export function acirToUint8Array(base64EncodedBytecode: string): Uint8Array {
   const compressedByteCode = base64Decode(base64EncodedBytecode);
   return gunzip(compressedByteCode);
 }
diff --git a/tooling/noir_js_types/.gitignore b/tooling/noir_js_types/.gitignore
index e69de29bb2d..7951405f85a 100644
--- a/tooling/noir_js_types/.gitignore
+++ b/tooling/noir_js_types/.gitignore
@@ -0,0 +1 @@
+lib
\ No newline at end of file
diff --git a/tooling/noir_js_types/package.json b/tooling/noir_js_types/package.json
index 188b052273a..42c90010c37 100644
--- a/tooling/noir_js_types/package.json
+++ b/tooling/noir_js_types/package.json
@@ -3,12 +3,29 @@
   "collaborators": [
     "The Noir Team <team@noir-lang.org>"
   ],
-  "version": "0.14.1",
   "packageManager": "yarn@3.5.1",
+  "version": "0.14.1",
   "license": "(MIT OR Apache-2.0)",
   "files": [
     "lib",
     "package.json"
   ],
-  "types": "lib/types.ts"
+  "main": "lib/cjs/types.js",
+  "module": "lib/esm/types.js",
+  "types": "lib/esm/types.d.ts",
+  "scripts": {
+    "build:esm": "tsc",
+    "build:cjs": "tsc --module CommonJS --outDir lib/cjs",
+    "build": "yarn run build:cjs && yarn run build:esm"
+  },
+  "exports": {
+    ".": {
+      "import": "./lib/esm/types.js",
+      "require": "./lib/cjs/types.js",
+      "types": "./lib/esm/types.d.ts"
+    }
+  },
+  "devDependencies": {
+    "typescript": "^5.2.2"
+  }
 }
diff --git a/tooling/noir_js_types/lib/types.ts b/tooling/noir_js_types/src/types.ts
similarity index 100%
rename from tooling/noir_js_types/lib/types.ts
rename to tooling/noir_js_types/src/types.ts
diff --git a/tooling/noir_js_types/tsconfig.json b/tooling/noir_js_types/tsconfig.json
new file mode 100644
index 00000000000..1fe2a46abaa
--- /dev/null
+++ b/tooling/noir_js_types/tsconfig.json
@@ -0,0 +1,12 @@
+{
+  "compilerOptions": {
+    "declaration": true,
+    "module": "ESNext",
+    "moduleResolution": "node",
+    "outDir": "lib/esm",
+    "target": "ES2020",
+    "rootDir": "./src"
+  },
+  "include": ["src/**/*.ts"],
+  "exclude": ["node_modules"]
+}
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index 52c5915c8b4..cbaededbec8 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -555,6 +555,8 @@ __metadata:
 "@noir-lang/types@workspace:*, @noir-lang/types@workspace:tooling/noir_js_types":
   version: 0.0.0-use.local
   resolution: "@noir-lang/types@workspace:tooling/noir_js_types"
+  dependencies:
+    typescript: ^5.2.2
   languageName: unknown
   linkType: soft