diff --git a/imports/Spectral/Panel/RoomPanel.qml b/imports/Spectral/Panel/RoomPanel.qml
index d7f7a26..32bcaf3 100644
--- a/imports/Spectral/Panel/RoomPanel.qml
+++ b/imports/Spectral/Panel/RoomPanel.qml
@@ -13,8 +13,6 @@ import Spectral 0.1
 import Spectral.Setting 0.1
 import SortFilterProxyModel 0.2
 
-import "qrc:/js/md.js" as Markdown
-
 Item {
     property var currentRoom: null
 
diff --git a/imports/Spectral/Panel/RoomPanelInput.qml b/imports/Spectral/Panel/RoomPanelInput.qml
index a172e7a..90a0b28 100644
--- a/imports/Spectral/Panel/RoomPanelInput.qml
+++ b/imports/Spectral/Panel/RoomPanelInput.qml
@@ -10,8 +10,6 @@ import Spectral.Setting 0.1
 
 import Spectral 0.1
 
-import "qrc:/js/md.js" as Markdown
-
 Control {
     property alias isReply: replyItem.visible
     property var replyUser
@@ -349,8 +347,7 @@ Control {
                     }
                     if (text.indexOf(PREFIX_MARKDOWN) === 0) {
                         text = text.substr(PREFIX_MARKDOWN.length)
-                        var parsedText = Markdown.markdown_parser(text)
-                        currentRoom.postHtmlMessage(text, parsedText, RoomMessageEvent.Text)
+                        currentRoom.postMarkdownText(text)
                         return
                     }
 
diff --git a/js/md.js b/js/md.js
deleted file mode 100644
index ceae2ef..0000000
--- a/js/md.js
+++ /dev/null
@@ -1,90 +0,0 @@
-.pragma library
-
-var preg_replace=function(a,b,c,d){void 0===d&&(d=-1);var e=a.substr(a.lastIndexOf(a[0])+1),f=a.substr(1,a.lastIndexOf(a[0])-1),g=RegExp(f,e),i=[],j=0,k=0,l=c,m=[];if(-1===d){do m=g.exec(c),null!==m&&i.push(m);while(null!==m&&-1!==e.indexOf("g"))}else i.push(g.exec(c));for(j=i.length-1;j>-1;j--){for(m=b,k=i[j].length;k>-1;k--)m=m.replace("${"+k+"}",i[j][k]).replace("$"+k,i[j][k]).replace("\\"+k,i[j][k]);l=l.replace(i[j][0],m)}return l};
-
-var markdown_parser = function(str){
-
-    var rules = [
-        // headers
-        ['/(#+)(.*)/g', function(chars, header){
-            var level = chars.length;
-            return '<h'+level+'>'+header.trim()+'</h'+level+'>';
-        }],
-        // images
-//        ['/\\!\\[([^\\[]+)\\]\\(([^\\(]+)\\)/g', '<img src=\"\\2\" alt=\"\\1\" />'],
-        // link
-        ['/\\[([^\\[]+)\\]\\(([^\\(]+)\\)/g', '<a href=\"\\2\">\\1</a>'],
-        // bold
-        ['/(\\*\\*|__)(.*?)\\1/g', '<strong>\\2</strong>'],
-        // emphasis
-        ['/(\\*|_)(.*?)\\1/g', '<i>\\2</i>'],
-        // strike
-        ['/(\\~\\~)(.*?)\\1/g', '<del>\\2</del>'],
-        // quote
-        ['/\\:\\"(.*?)\\"\\:/g', '<q>\\1</q>'],
-        // unordered list
-//        ['/\\n\\*(.*)/g', function(item){
-//            return '<ul>\n<li>'+item.trim()+'</li>\n</ul>';
-//        }],
-        // ordered list
-//        ['/\\n[0-9]+\\.(.*)/g', function(item){
-//            return '<ol>\n<li>'+item.trim()+'</li>\n</ol>';
-//        }],
-        // blockquote
-        ['/\\n\\>(.*)/g', function(str){
-            return '<blockquote>'+str.trim()+'</blockquote>';
-        }]
-        // paragraphs
-//        ['/\\n[^\\n]+\\n/g', function(line){
-//            line = line.trim();
-//            if(line[0] === '<'){
-//                return line;
-//            }
-//            return '\n<p>'+line+'</p>\n';
-//        }]
-    ], fixes = [
-        ['/<\\/ul>\n<ul>/g', '\n'],
-        ['/<\\/ol>\n<ol>/g', '\n'],
-        ['/<\\/blockquote>\n<blockquote>/g', "\n"]
-    ];
-
-    var parse_line = function(str){
-        str = "\n" + str.trim() + "\n";
-        for(var i = 0, j = rules.length; i < j; i++){
-            if(typeof rules[i][1] == 'function') {
-                var _flag = rules[i][0].substr(rules[i][0].lastIndexOf(rules[i][0][0])+1),
-                    _pattern = rules[i][0].substr(1, rules[i][0].lastIndexOf(rules[i][0][0])-1),
-                    reg	= new RegExp(_pattern, _flag);
-
-                var matches = reg.exec(str);
-                if(matches !== null){
-                    if(matches.length > 1){
-                        str = preg_replace(rules[i][0], rules[i][1](matches[1], matches[2]), str);
-                    }
-                    else
-                    {
-                        str = preg_replace(rules[i][0], rules[i][1](matches[0]), str);
-                    }
-                }
-            }
-            else {
-                str = preg_replace(rules[i][0], rules[i][1], str);
-            }
-        }
-        return str.trim();
-    };
-
-    str = str.split('\n');
-    var rtn = [];
-    for(var i = 0, j = str.length; i < j; i++){
-        rtn.push(parse_line(str[i]));
-    }
-
-    rtn = rtn.join('\n');
-
-    for(i = 0, j = fixes.length; i < j; i++){
-        rtn = preg_replace(fixes[i][0], fixes[i][1], rtn);
-    }
-
-    return rtn;
-};
diff --git a/res.qrc b/res.qrc
index e5c3da8..d5d29dd 100644
--- a/res.qrc
+++ b/res.qrc
@@ -2,7 +2,6 @@
     <qresource prefix="/">
         <file>qtquickcontrols2.conf</file>
         <file>qml/main.qml</file>
-        <file>js/md.js</file>
         <file>imports/Spectral/Component/Emoji/EmojiPicker.qml</file>
         <file>imports/Spectral/Component/Emoji/qmldir</file>
         <file>imports/Spectral/Component/Timeline/DownloadableContent.qml</file>
diff --git a/spectral.pro b/spectral.pro
index 2620c0b..ae86e26 100644
--- a/spectral.pro
+++ b/spectral.pro
@@ -20,6 +20,9 @@ isEmpty(USE_SYSTEM_SORTFILTERPROXYMODEL) {
 isEmpty(USE_SYSTEM_QMATRIXCLIENT) {
     USE_SYSTEM_QMATRIXCLIENT = false
 }
+isEmpty(USE_SYSTEM_CMARK) {
+    USE_SYSTEM_CMARK = false
+}
 isEmpty(BUNDLE_FONT) {
     BUNDLE_FONT = false
 }
@@ -36,6 +39,12 @@ $$USE_SYSTEM_SORTFILTERPROXYMODEL {
     message("Falling back to built-in SortFilterProxyModel.")
     include(include/SortFilterProxyModel/SortFilterProxyModel.pri)
 }
+$$USE_SYSTEM_CMARK {
+    PKGCONFIG += libcmark
+} else {
+    message("Falling back to built-in CMark.")
+    include(include/SortFilterProxyModel/SortFilterProxyModel.pri)
+}
 
 # The following define makes your compiler emit warnings if you use
 # any feature of Qt which as been marked deprecated (the exact warnings
diff --git a/src/spectralroom.cpp b/src/spectralroom.cpp
index f9aded9..8c52651 100644
--- a/src/spectralroom.cpp
+++ b/src/spectralroom.cpp
@@ -14,6 +14,8 @@
 #include <QMetaObject>
 #include <QMimeDatabase>
 
+#include "cmark.h"
+
 #include "utils.h"
 
 SpectralRoom::SpectralRoom(Connection* connection, QString roomId,
@@ -233,3 +235,10 @@ QVariantList SpectralRoom::getUsers(const QString& prefix) {
 
   return matchedList;
 }
+
+QString SpectralRoom::postMarkdownText(const QString& markdown) {
+    QByteArray local = markdown.toLocal8Bit();
+    const char* data = local.data();
+    QString html = cmark_markdown_to_html(data, local.length(), 0);
+    return postHtmlText(markdown, html);
+}
diff --git a/src/spectralroom.h b/src/spectralroom.h
index c4656fc..da2ab97 100644
--- a/src/spectralroom.h
+++ b/src/spectralroom.h
@@ -74,6 +74,8 @@ class SpectralRoom : public Room {
 
   Q_INVOKABLE QVariantList getUsers(const QString& prefix);
 
+  Q_INVOKABLE QString postMarkdownText(const QString& markdown);
+
  private:
   QString m_cachedInput;
   QSet<const QMatrixClient::RoomEvent*> highlights;