diff --git a/.gitattributes b/.gitattributes
index 38f518f571..9dd77ca667 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1 @@
-public/js/lib/codemirror/* linguist-vendored
 *.jsx linguist-language=JavaScript
diff --git a/client/less/code-mirror.less b/client/less/code-mirror.less
deleted file mode 100644
index 0e5316e950..0000000000
--- a/client/less/code-mirror.less
+++ /dev/null
@@ -1,37 +0,0 @@
-.ReactCodeMirror {
-  height: 100%;
-}
-
-.CodeMirror {
-  height: 100%;
-  line-height: 1 !important;
-}
-
-.CodeMirror span {
-  font-size: 15px;
-  font-family: "Ubuntu Mono";
-  padding-bottom: 0px;
-  margin-bottom: 0px;
-  height: 100%;
-}
-
-.CodeMirror-gutters {
-  background-color: @body-bg;
-}
-.CodeMirror-linenumber {
-  font-size: 15px;
-  font-family: "Ubuntu Mono";
-}
-
-.CodeMirror-scroll {
-  padding-bottom: 30px;
-}
-
-.challenge-log .CodeMirror {
-  height: 100%;
-  width: 100%;
-}
-
-.CodeMirror-lint-tooltip {
-  z-index: 9999;
-}
diff --git a/client/less/main.less b/client/less/main.less
index ed1c05c103..8893dabc0c 100644
--- a/client/less/main.less
+++ b/client/less/main.less
@@ -1069,7 +1069,6 @@ and (max-width : 400px)  {
 // surrounding downstream import with &{}
 // creates locally scoped imports
 // and prevents vaiables from overwriting each other
-&{ @import "./code-mirror.less"; }
 &{ @import "./toastr.less"; }
 &{ @import "../../common/index.less"; }
 &{ @import "./userHome.less"; }
diff --git a/package-lock.json b/package-lock.json
index b20fef3ef7..06666ab27d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3385,11 +3385,6 @@
       "resolved": "https://registry.npmjs.org/camelize/-/camelize-1.0.0.tgz",
       "integrity": "sha1-FkpUg+Yw+kMh5a8HAg5TGDGyYJs="
     },
-    "caniuse-db": {
-      "version": "1.0.30000756",
-      "resolved": "https://registry.npmjs.org/caniuse-db/-/caniuse-db-1.0.30000756.tgz",
-      "integrity": "sha1-6TimuZFjDzDSJj3TRYvrZdNiJos="
-    },
     "caniuse-lite": {
       "version": "1.0.30000865",
       "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30000865.tgz",
@@ -3954,11 +3949,6 @@
       "resolved": "https://registry.npmjs.org/code-point-at/-/code-point-at-1.1.0.tgz",
       "integrity": "sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c="
     },
-    "codemirror": {
-      "version": "5.15.2",
-      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.15.2.tgz",
-      "integrity": "sha1-WLPccyxtENeq6Ab0x83VapuH/o8="
-    },
     "collection-visit": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/collection-visit/-/collection-visit-1.0.0.tgz",
@@ -5588,22 +5578,6 @@
       "integrity": "sha1-80Ea3pdYp1Zd+Eiy2gy70bRsvWQ=",
       "dev": true
     },
-    "emmet": {
-      "version": "1.6.3",
-      "resolved": "https://registry.npmjs.org/emmet/-/emmet-1.6.3.tgz",
-      "integrity": "sha1-/hPXdO7jMv5L9sCsjLLWhhbqUME=",
-      "requires": {
-        "caniuse-db": "1.0.30000756"
-      }
-    },
-    "emmet-codemirror": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npmjs.org/emmet-codemirror/-/emmet-codemirror-1.2.5.tgz",
-      "integrity": "sha1-bFfuniJTe4oWmP9jagPLMBbffBY=",
-      "requires": {
-        "emmet": "1.6.3"
-      }
-    },
     "emojis-list": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/emojis-list/-/emojis-list-2.1.0.tgz",
diff --git a/package.json b/package.json
index d2cb3c137a..b31bad684e 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,6 @@
     "cal-heatmap": "~3.5.2",
     "chai": "~3.4.1",
     "classnames": "^2.1.2",
-    "codemirror": "~5.15.2",
     "compression": "^1.6.0",
     "connect-mongo": "^1.3.2",
     "cookie-parser": "^1.4.0",
@@ -66,7 +65,6 @@
     "debug": "^2.2.0",
     "dedent": "~0.7.0",
     "dotenv": "^4.0.0",
-    "emmet-codemirror": "^1.2.5",
     "enzyme": "^3.2.0",
     "enzyme-adapter-react-15": "^1.0.5",
     "express": "^4.13.3",
diff --git a/server/views/partials/footer.jade b/server/views/partials/footer.jade
index a0c81ef1a4..509801a862 100644
--- a/server/views/partials/footer.jade
+++ b/server/views/partials/footer.jade
@@ -1,2 +1,2 @@
 // scripts should be moved here
-script(src="https://cdn.optimizely.com/js/999692993.js")
+
diff --git a/server/views/partials/react-stylesheets.jade b/server/views/partials/react-stylesheets.jade
index 35d70815ac..635c47b9ff 100644
--- a/server/views/partials/react-stylesheets.jade
+++ b/server/views/partials/react-stylesheets.jade
@@ -1,9 +1,6 @@
 link(rel='stylesheet', type='text/css' href='/css/lato.css')
 link(rel='stylesheet', type='text/css' href='/css/ubuntu.css')
 link(rel='stylesheet', href='https://use.fontawesome.com/releases/v5.0.13/js/all.css' integrity='sha384-xymdQtn1n3lH2wcu0qhcdaOpQwyoarkgLVxC/wZ5q7h9gHtxICrpcaSUfygqZGOe' crossorigin='anonymous')
-link(rel='stylesheet', href='https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.30.0/codemirror.min.css')
-link(rel='stylesheet', href='https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.30.0/theme/dracula.min.css')
-link(rel='stylesheet', href='https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.30.0/addon/lint/lint.min.css')
 link(rel='stylesheet', href=cacheBreaker(rev('/css', 'main.css')))
 
 include meta