diff --git a/src/env-parser.js b/src/env-parser.js
new file mode 100644
index 0000000..37cd844
--- /dev/null
+++ b/src/env-parser.js
@@ -0,0 +1,28 @@
+const normalFieldName = /^[A-Z\d_\-.:]+$/i;
+const flatOnlyFieldName = /^[A-Z\d_-]+$/i;
+
+/**
+ * @param {object=} options
+ * @param {boolean=} [options.flatOnly=false]
+ * @return {Map.<string, string>}
+ */
+function envParse(options = {}) {
+  const flatOnly = options.flatOnly || false;
+
+  const { env } = global.process;
+
+  return new Map(Object.keys(env)
+    .map((key) => {
+      if (!key.match(flatOnly ? flatOnlyFieldName : normalFieldName)) {
+        throw Error(`Unsupported env field name: ${key}`);
+      }
+
+      const newKey = key.toLowerCase()
+                        .replace(/([:_-])([a-z\d])/g, str => str[1].toUpperCase());
+
+      return [newKey, env[key]];
+    }));
+}
+
+export default envParse;
+module.exports = envParse;
diff --git a/src/env-parser.test.js b/src/env-parser.test.js
new file mode 100644
index 0000000..9e4805e
--- /dev/null
+++ b/src/env-parser.test.js
@@ -0,0 +1,54 @@
+/* eslint-env mocha */
+/* globals describe, it, before, after, beforeEach, afterEach */
+
+import { expect } from 'chai';
+import envParser from './env-parser';
+
+describe('env-parser', () => {
+  beforeEach(() => {
+    process.env = {
+      'DATABASE.MONGODB_HOST': 'localhost',
+      'DATABASE.MONGODB.PORT': '27316',
+      'REDIS:HASH-ALGO': 'testName',
+    };
+  });
+
+  it('return type', () => {
+    expect(() => {
+      const result = envParser();
+
+      expect(result).to.be.an.instanceof(Map, 'Return value must be a Map');
+    }).not.to.throw();
+  });
+
+  it('keys format', () => {
+    expect(() => {
+      envParser().forEach((value, key) => {
+        expect(key).to.match(/^[A-Za-z\d.]+$/);
+      });
+    }).not.to.throw();
+  });
+
+  it('flat keys', () => {
+    process.env = {
+      DATABASE_MONGODB_HOST: 'localhost',
+      'REDIS-HASH-ALGO': 'testName',
+    };
+
+    expect(() => {
+      envParser({ flatOnly: true }).forEach((value, key) => {
+        expect(key).to.match(/^[A-Za-z\d.]+$/);
+      });
+    }).not.to.throw();
+  });
+
+  it('flat keys - try invalid key', () => {
+    process.env = {
+      'REDIS:HASH-ALGO': 'testName',
+    };
+
+    expect(() => {
+      envParser({ flatOnly: true });
+    }).to.throw(Error, /Unsupported env field name/);
+  });
+});