diff --git a/lib/errors.js b/lib/errors.js
deleted file mode 100644
index f86e8aa37..000000000
--- a/lib/errors.js
+++ /dev/null
@@ -1,40 +0,0 @@
-const config = require('./config')
-
-module.exports = {
-  errorForbidden: function (res) {
-    const { req } = res
-    if (req.user) {
-      responseError(res, '403', 'Forbidden', 'oh no.')
-    } else {
-      if (!req.session) req.session = {}
-      req.session.returnTo = req.originalUrl || config.serverUrl + '/'
-      req.flash('error', 'You are not allowed to access this page. Maybe try logging in?')
-      res.redirect(config.serverURL + '/')
-    }
-  },
-  errorNotFound: function (res) {
-    responseError(res, '404', 'Not Found', 'oops.')
-  },
-  errorBadRequest: function (res) {
-    responseError(res, '400', 'Bad Request', 'something not right.')
-  },
-  errorTooLong: function (res) {
-    responseError(res, '413', 'Payload Too Large', 'Shorten your note!')
-  },
-  errorInternalError: function (res) {
-    responseError(res, '500', 'Internal Error', 'wtf.')
-  },
-  errorServiceUnavailable: function (res) {
-    res.status(503).send('I\'m busy right now, try again later.')
-  }
-}
-
-function responseError (res, code, detail, msg) {
-  res.status(code).render('error.ejs', {
-    title: code + ' ' + detail + ' ' + msg,
-    code: code,
-    detail: detail,
-    msg: msg,
-    opengraph: []
-  })
-}
diff --git a/lib/errors.ts b/lib/errors.ts
new file mode 100644
index 000000000..d5d3ea00c
--- /dev/null
+++ b/lib/errors.ts
@@ -0,0 +1,54 @@
+const config = require('./config')
+
+function responseError (res, code: number, detail: string, msg: string): void {
+  res.status(code).render('error.ejs', {
+    title: code + ' ' + detail + ' ' + msg,
+    code: code,
+    detail: detail,
+    msg: msg,
+    opengraph: []
+  })
+}
+
+function errorForbidden (res): void {
+  const { req } = res
+  if (req.user) {
+    responseError(res, 403, 'Forbidden', 'oh no.')
+  } else {
+    if (!req.session) req.session = {}
+    req.session.returnTo = req.originalUrl || config.serverUrl + '/'
+    req.flash('error', 'You are not allowed to access this page. Maybe try logging in?')
+    res.redirect(config.serverURL + '/')
+  }
+}
+
+function errorNotFound (res): void {
+  responseError(res, 404, 'Not Found', 'oops.')
+}
+
+function errorBadRequest (res): void {
+  responseError(res, 400, 'Bad Request', 'something not right.')
+}
+
+function errorTooLong (res): void {
+  responseError(res, 413, 'Payload Too Large', 'Shorten your note!')
+}
+
+function errorInternalError (res): void {
+  responseError(res, 500, 'Internal Error', 'wtf.')
+}
+
+function errorServiceUnavailable (res): void {
+  responseError(res, 503, 'Service Unvavilable', 'I\'m busy right now, try again later.')
+}
+
+const errors = {
+  errorForbidden: errorForbidden,
+  errorNotFound: errorNotFound,
+  errorBadRequest: errorBadRequest,
+  errorTooLong: errorTooLong,
+  errorInternalError: errorInternalError,
+  errorServiceUnavailable: errorServiceUnavailable
+}
+
+export { errors }