diff --git a/build/README.md b/build/README.md
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+++ b/build/README.md
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+# build
+
+The directory is used to build a single file `noble-curves.js` which contains everything.
+
+The output file uses iife wrapper and can be used in browsers as-is.
+
+Don't use it unless you can't use NPM/ESM, which support tree shaking.
diff --git a/build/input.js b/build/input.js
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+++ b/build/input.js
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+import { bytesToHex, concatBytes, hexToBytes } from '@noble/curves/abstract/utils';
+
+export { secp256k1 } from '@noble/curves/secp256k1';
+export { ed25519, x25519 } from '@noble/curves/ed25519';
+export { ed448, x448 } from '@noble/curves/ed448';
+export { p256 } from '@noble/curves/p256';
+export { p384 } from '@noble/curves/p384';
+export { p521 } from '@noble/curves/p521';
+export { bls12_381 } from '@noble/curves/bls12-381';
+
+export const utils = { bytesToHex, concatBytes, hexToBytes };
diff --git a/build/package.json b/build/package.json
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+++ b/build/package.json
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+{
+  "name": "build",
+  "private": true,
+  "version": "1.0.0",
+  "description": "Used to build a single file",
+  "main": "input.js",
+  "keywords": [],
+  "type": "module",
+  "author": "",
+  "license": "MIT",
+  "devDependencies": {
+    "@noble/curves": "..",
+    "esbuild": "0.17.19"
+  },
+  "scripts": {
+    "build": "npx esbuild --bundle input.js --outfile=noble-curves.js --global-name=nobleCurves"
+  }
+}