diff --git a/README.md b/README.md
index 5c16352..16c0775 100644
--- a/README.md
+++ b/README.md
@@ -134,10 +134,11 @@ the examples repo [env-cmd-examples](https://github.com/toddbluhm/env-cmd-exampl
 ## Environment File Formats
 
 These are the currently accepted environment file formats. If any other formats are desired please create an issue.
-- `key=value`
-- Key/value pairs as JSON
-- JavaScript file exporting an `object` or a `Promise` that resolves to an `object`
-- `.env-cmdrc` file (as valid json) in execution directory
+- `.env` as `key=value`
+- `.env.json` Key/value pairs as JSON
+- `.env.js` JavaScript file exporting an `object` or a `Promise` that resolves to an `object`
+- `.env-cmdrc` as valid json or `.env-cmdrc.json` in execution directory with at least one environment `{ "dev": { "key1": "val1" } }`
+- `.env-cmdrc.js` JavaScript file exporting an `object` or a `Promise` that resolves to an `object` that contains at least one environment
 
 ## Path Rules
 
diff --git a/dist/get-env-vars.js b/dist/get-env-vars.js
index a5f7d3d..99f8a99 100644
--- a/dist/get-env-vars.js
+++ b/dist/get-env-vars.js
@@ -3,35 +3,40 @@ Object.defineProperty(exports, "__esModule", { value: true });
 const parse_rc_file_1 = require("./parse-rc-file");
 const parse_env_file_1 = require("./parse-env-file");
 const RC_FILE_DEFAULT_LOCATIONS = ['./.env-cmdrc', './.env-cmdrc.js', './.env-cmdrc.json'];
-const ENV_FILE_DEFAULT_LOCATION = './.env';
-async function getEnvVars(options) {
-    options = options || {};
-    options.envFile = options.envFile || {};
-    // Check for rc file usage
-    if (options.rc) {
-        return getRCFile({ environments: options.rc.environments, filePath: options.rc.filePath });
-    }
-    return getEnvFile({ filePath: options.envFile.filePath, fallback: options.envFile.fallback });
+const ENV_FILE_DEFAULT_LOCATIONS = ['./.env', './.env.js', './.env.json'];
+function getEnvVars(options) {
+    return __awaiter(this, void 0, void 0, function* () {
+        options = options || {};
+        options.envFile = options.envFile || {};
+        // Check for rc file usage
+        if (options.rc) {
+            return getRCFile({ environments: options.rc.environments, filePath: options.rc.filePath });
+        }
+        return getEnvFile({ filePath: options.envFile.filePath, fallback: options.envFile.fallback });
+    });
 }
 exports.getEnvVars = getEnvVars;
-async function getEnvFile({ filePath, fallback }) {
-    // Use env file
-    if (filePath) {
-        try {
-            return await parse_env_file_1.getEnvFileVars(filePath);
+function getEnvFile({ filePath, fallback }) {
+    return __awaiter(this, void 0, void 0, function* () {
+        // Use env file
+        if (filePath) {
+            try {
+                return yield parse_env_file_1.getEnvFileVars(filePath);
+            }
+            catch (e) { }
+            if (!fallback) {
+                throw new Error(`Unable to locate env file at location (${filePath})`);
+            }
         }
-        catch (e) { }
-        if (!fallback) {
-            throw new Error(`Unable to locate env file at location (${filePath})`);
+        // Use the default env file locations
+        for (const path of ENV_FILE_DEFAULT_LOCATIONS) {
+            try {
+                return yield parse_env_file_1.getEnvFileVars(path);
+            }
+            catch (e) { }
         }
-    }
-    // Use the default env file location
-    try {
-        return await parse_env_file_1.getEnvFileVars(ENV_FILE_DEFAULT_LOCATION);
-    }
-    catch (e) {
-        throw new Error(`Unable to locate env file at default location (${ENV_FILE_DEFAULT_LOCATION})`);
-    }
+        throw new Error(`Unable to locate env file at default locations (${ENV_FILE_DEFAULT_LOCATIONS})`);
+    });
 }
 exports.getEnvFile = getEnvFile;
 async function getRCFile({ environments, filePath }) {
diff --git a/src/get-env-vars.ts b/src/get-env-vars.ts
index 5887ca5..2dc662e 100644
--- a/src/get-env-vars.ts
+++ b/src/get-env-vars.ts
@@ -3,7 +3,7 @@ import { getRCFileVars } from './parse-rc-file'
 import { getEnvFileVars } from './parse-env-file'
 
 const RC_FILE_DEFAULT_LOCATIONS = ['./.env-cmdrc', './.env-cmdrc.js', './.env-cmdrc.json']
-const ENV_FILE_DEFAULT_LOCATION = './.env'
+const ENV_FILE_DEFAULT_LOCATIONS = ['./.env', './.env.js', './.env.json']
 
 export async function getEnvVars (options?: GetEnvVarOptions): Promise<{ [key: string]: any }> {
   options = options || {}
@@ -28,12 +28,14 @@ export async function getEnvFile (
     }
   }
 
-  // Use the default env file location
-  try {
-    return await getEnvFileVars(ENV_FILE_DEFAULT_LOCATION)
-  } catch (e) {
-    throw new Error(`Unable to locate env file at default location (${ENV_FILE_DEFAULT_LOCATION})`)
+  // Use the default env file locations
+  for (const path of ENV_FILE_DEFAULT_LOCATIONS) {
+    try {
+      return await getEnvFileVars(path)
+    } catch (e) { }
   }
+
+  throw new Error(`Unable to locate env file at default locations (${ENV_FILE_DEFAULT_LOCATIONS})`)
 }
 
 export async function getRCFile (
diff --git a/test/get-env-vars.spec.ts b/test/get-env-vars.spec.ts
index f46b4d7..a51f24a 100644
--- a/test/get-env-vars.spec.ts
+++ b/test/get-env-vars.spec.ts
@@ -133,6 +133,18 @@ describe('getEnvVars', (): void => {
     assert.equal(getEnvFileVarsStub.args[0][0], './.env')
   })
 
+  it('should search all default env file locations', async (): Promise<void> => {
+    getEnvFileVarsStub.throws('Not found.')
+    getEnvFileVarsStub.onThirdCall().returns({ THANKS: 'FORALLTHEFISH' })
+    const envs = await getEnvVars()
+    assert.isOk(envs)
+    assert.lengthOf(Object.keys(envs), 1)
+    assert.equal(envs.THANKS, 'FORALLTHEFISH')
+    assert.equal(getEnvFileVarsStub.callCount, 3)
+    assert.isTrue(getEnvFileVarsStub.calledWithExactly('./.env.json'))
+    assert.isTrue(getEnvFileVarsStub.calledWithExactly('./.env.json'))
+  })
+
   it('should fail to find env file at default location', async (): Promise<void> => {
     getEnvFileVarsStub.rejects('Not found.')
     try {