diff --git a/client.js b/client.js
index 543baa0d..5e3165bf 100644
--- a/client.js
+++ b/client.js
@@ -13,7 +13,7 @@ const asTable = require("as-table").configure({delimiter: ' | '});
 const util = require("util");
 
 // internal libraries
-const objectOps = require("lib/objectOps.js");
+const objectOps = require("lib/objectOps");
 const fileOps = require("lib/fileOps");
 const pluginManager = require("lib/manager/pluginManager");
 const modManager = require("lib/manager/modManager");
@@ -594,7 +594,7 @@ async function instanceManagement(config, instance, instanceconfig, server) {
 		}
 		if(pluginConfig.binary == "nodePackage" && pluginConfig.enabled){
 			// require plugin class and execute it
-			let pluginClass = require(path.resolve(pluginConfig.pluginPath, "index.js"));
+			let pluginClass = require(path.resolve(pluginConfig.pluginPath, "index"));
 			plugins[i] = new pluginClass(combinedConfig, async function(data, callback){
 				if(data && data.toString('utf8')[0] != "/") {
                     console.log("Clusterio | "+ pluginsToLoad[i].name + " | " + data.toString('utf8'));
diff --git a/lib/clusterTools/index.js b/lib/clusterTools/index.js
index eee7cb1b..09351555 100644
--- a/lib/clusterTools/index.js
+++ b/lib/clusterTools/index.js
@@ -12,5 +12,5 @@ module.exports = ({config} = {}) => ({
 		arg1 is the instanceID
 		Promise resolves with a string, either the displayName or instanceID if not found.
 	*/
-	getInstanceName: require("./getInstanceName.js")(config),
+	getInstanceName: require("./getInstanceName")(config),
 })
diff --git a/lib/isFactorioCommand/index.js b/lib/isFactorioCommand/index.js
index 5d4aeb9b..408a2086 100644
--- a/lib/isFactorioCommand/index.js
+++ b/lib/isFactorioCommand/index.js
@@ -1 +1 @@
-module.exports = require("./isFactorioCommand.js");
\ No newline at end of file
+module.exports = require("./isFactorioCommand");
diff --git a/lib/manager/modManager.js b/lib/manager/modManager.js
index 606cef05..dc5da90b 100644
--- a/lib/manager/modManager.js
+++ b/lib/manager/modManager.js
@@ -36,7 +36,7 @@ modManager.listMods(config, instance);
 */
 async function listMods(config, instance) {
 	return new Promise((resolve, reject) => {
-		const instances = require("./../getInstances.js")(config).sync();
+		const instances = require("./../getInstances")(config).sync();
 		if (instances.includes(instance.name)) {
 			factorioAPI.init(false, instance.path("instanceMods"), instance.path("saves"), config.factorio_version);
 			factorioAPI.authenticate({
diff --git a/master.js b/master.js
index 2606e639..3acb2be3 100644
--- a/master.js
+++ b/master.js
@@ -11,7 +11,7 @@ node master
 */
 
 // Attempt updating
-// const updater = require("./updater.js");
+// const updater = require("./updater");
 // updater.update().then(console.log);
 
 // argument parsing
@@ -32,7 +32,7 @@ let config = {};
 
 // homebrew modules
 const generateSSLcert = require("lib/generateSSLcert");
-const pluginManager = require("lib/manager/pluginManager.js");
+const pluginManager = require("lib/manager/pluginManager");
 const database = require("lib/database");
 const factorio = require("lib/factorio");
 
@@ -71,8 +71,8 @@ app.use(function(req, res, next){
 	next();
 });
 
-require("./routes.js")(app);
-require("./routes/api/getPictures.js")(app);
+require("./routes")(app);
+require("./routes/api/getPictures")(app);
 // Set folder to serve static content from (the website)
 app.use(express.static('static'));
 
@@ -480,7 +480,7 @@ app.post("/api/place", authenticate.middleware, function(req, res) {
 		res.send("failure");
 	}
 });
-const routes_api_remove = require("./routes/api/remove.js");
+const routes_api_remove = require("./routes/api/remove");
 let neuralDole;
 
 /**
diff --git a/routes/api/remove.js b/routes/api/remove.js
index 4de5ba18..382dade9 100644
--- a/routes/api/remove.js
+++ b/routes/api/remove.js
@@ -1,6 +1,6 @@
 const averagedTimeSeries = require("averaged-timeseries")
 
-const doleNN = require("lib/dole_nn_base.js")
+const doleNN = require("lib/dole_nn_base")
 
 const Prometheus = require('prom-client');
 
diff --git a/sharedPlugins/clusterioMod/index.js b/sharedPlugins/clusterioMod/index.js
index ce4b57a7..64a11ce4 100644
--- a/sharedPlugins/clusterioMod/index.js
+++ b/sharedPlugins/clusterioMod/index.js
@@ -1,7 +1,7 @@
 const needle = require("needle");
 const fs = require("fs-extra");
 
-const objectOps = require("lib/objectOps.js");
+const objectOps = require("lib/objectOps");
 const fileOps = require("lib/fileOps");
 
 const pluginConfig = require("./config");
diff --git a/sharedPlugins/inventoryImports/index.js b/sharedPlugins/inventoryImports/index.js
index 40dd929e..282dbf45 100644
--- a/sharedPlugins/inventoryImports/index.js
+++ b/sharedPlugins/inventoryImports/index.js
@@ -1,6 +1,6 @@
 const needle = require("needle");
-const isJson = require("./isJson.js");
-const pluginConfig = require("./config.js");
+const isJson = require("./isJson");
+const pluginConfig = require("./config");
 
 const functions = require("./interfacingFunctions");
 
diff --git a/sharedPlugins/inventoryImports/interfacingFunctions.js b/sharedPlugins/inventoryImports/interfacingFunctions.js
index 870185d8..9ea57750 100644
--- a/sharedPlugins/inventoryImports/interfacingFunctions.js
+++ b/sharedPlugins/inventoryImports/interfacingFunctions.js
@@ -1,4 +1,4 @@
-const objectOps = require("lib/objectOps.js");
+const objectOps = require("lib/objectOps");
 const needle = require("needle");
 const pluginConfig = require("./config")
 const isJson = require("./isJson")
diff --git a/sharedPlugins/researchSync/test/index.js b/sharedPlugins/researchSync/test/index.js
index aa0b9a6c..00f8788f 100644
--- a/sharedPlugins/researchSync/test/index.js
+++ b/sharedPlugins/researchSync/test/index.js
@@ -3,7 +3,7 @@ const nock = require("nock");
 
 const isFactorioCommand = require("lib/isFactorioCommand");
 
-const researchSync = require("../index.js");
+const researchSync = require("../index");
 
 describe("researchSync/index.js", function() {
 	it("exports a single class (or at least a function)", function() {
diff --git a/sharedPlugins/serverManager/index.js b/sharedPlugins/serverManager/index.js
index aafa32a7..3208b305 100644
--- a/sharedPlugins/serverManager/index.js
+++ b/sharedPlugins/serverManager/index.js
@@ -8,7 +8,7 @@ module.exports = class remoteCommands {
 		this.messageInterface = messageInterface;
 		this.config = mergedConfig;
 		this.socket = extras.socket;
-		const pluginManager = require("lib/manager/pluginManager.js");
+		const pluginManager = require("lib/manager/pluginManager");
 		// const modManager = require("lib/manager/modManager");
 		this.socket.on("hello", () => {
 			this.socket.emit("registerServerManager");
diff --git a/sharedPlugins/serverManager/masterPlugin.js b/sharedPlugins/serverManager/masterPlugin.js
index 981dbf00..6c458389 100644
--- a/sharedPlugins/serverManager/masterPlugin.js
+++ b/sharedPlugins/serverManager/masterPlugin.js
@@ -22,10 +22,10 @@ class masterPlugin {
 		// this.banlist = getDatabaseSync("database/banlist.json").banlist || [];
 		
 		// initialize web API
-		require("./js/api-endpoints.js")(this);
+		require("./js/api-endpoints")(this);
 		
 		// expose UI elements embedded in the master
-		this.ui = require("./js/ui.js").injectThis(this).ui;
+		this.ui = require("./js/ui").injectThis(this).ui;
 		
 		this.serverSockets = {};
 		
diff --git a/test/lib/generateSSLcert.js b/test/lib/generateSSLcert.js
index 6f69efae..dbed9058 100644
--- a/test/lib/generateSSLcert.js
+++ b/test/lib/generateSSLcert.js
@@ -2,7 +2,7 @@ var assert = require("assert");
 var fs = require("fs-extra");
 
 var fileOps = require("lib/fileOps");
-var generateSSLcert = require("lib/generateSSLcert.js")
+var generateSSLcert = require("lib/generateSSLcert")
 
 describe("generateSSLcert.js(options)", ()=>{
 	it("Creates a folder with a .crt and .key file in it", async function() {
diff --git a/test/master.js b/test/master.js
index 8153ec7d..79dbf410 100644
--- a/test/master.js
+++ b/test/master.js
@@ -4,7 +4,7 @@ const validateHTML = require('html5-validator');
 const parallel = require('mocha.parallel');
 const jwt = require("jsonwebtoken");
 
-const master = require('../master.js');
+const master = require('../master');
 const authenticate = require('lib/authenticate');
 const database = require('lib/database');