diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6f66c74
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+*.zip
\ No newline at end of file
diff --git a/constants/constants.js b/constants/constants.js
index 6b1bd9e..1a68409 100644
--- a/constants/constants.js
+++ b/constants/constants.js
@@ -7,6 +7,7 @@ const CONTENT_COMMANDS = {
   CHANGE_PLAYBACK_RATE: 'change_playback_rate',
   GET_PLAYBACK_RATE: 'get_playback_rate',
   UPDATE_VALUE: 'update_value',
+  PLAY_SSML: 'play_ssml',
 };
 
 const BACKGROUND_COMMANDS = {
@@ -29,6 +30,7 @@ const WEBRICE_KEYS = {
   SUBSTITUTIONS: 'webrice_substitutions',
   VOLUME: 'webrice_volume',
   AWS_CREDS: 'webrice_aws_creds',
+  SSML_TEXT: 'webrice_ssml_text',
 };
 
 const BACKENDS = {
diff --git a/content/content.js b/content/content.js
index d3cbb5b..230c12e 100644
--- a/content/content.js
+++ b/content/content.js
@@ -19,6 +19,7 @@ const settings = {
   pitch_default: true,
   subs: [],
   text: '',
+  ssml: '',
 };
 
 // Sends messages to the background script
@@ -60,15 +61,15 @@ const getText = () => {
  * Start playing audio. If needed setup and requesting of new audio is done.
  * @returns SUCCESS or an error message
  */
-const play = async () => {
-  const text = getText();
+const play = async ({ ssml = false } = {}) => {
+  const text = ssml ? settings.ssml : getText();
   if (player.sameTextAndVoice(text, settings.voice)) {
     player.setPlaybackRate(settings.playbackRate);
     player.play();
     return 'SUCCESS';
   }
 
-  const result = getRequestHeaderAndContent(text, settings);
+  const result = getRequestHeaderAndContent(text, settings, ssml);
 
   if (result.requests.length == 0) {
     return 'Unable to formulate tts requests.';
@@ -168,6 +169,9 @@ const updateSetting = (setting, value) => {
       settings.volume = value;
       player.setVolume(value);
       break;
+    case WEBRICE_KEYS.SSML_TEXT:
+      settings.ssml = value;
+      break;
     default:
       break;
   }
@@ -202,6 +206,8 @@ const commandHandler = async (message) => {
       const { setting, value } = message.settings;
       updateSetting(setting, value);
       break;
+    case CONTENT_COMMANDS.PLAY_SSML:
+      return await play({ ssml: false });
     default:
       console.log(`WebRice extension: Unknown command -> ${message.command}`);
       break;
diff --git a/content/fetch.js b/content/fetch.js
index 82f7ef6..0a89d4c 100644
--- a/content/fetch.js
+++ b/content/fetch.js
@@ -53,14 +53,26 @@ const normalizeText = (text, specialTrim = false) => {
  * Normalizes the text and outputs an array of tts requests
  * @param {string} text text to normalize for tts
  * @param {object} settings eventual settings that might be used to change voice
+ * @param {boolean} ssml default false, turns on SSML settings for the request
  * @returns an array of requests, {url, content}
  */
-const getRequestHeaderAndContent = (text, settings) => {
+const getRequestHeaderAndContent = (text, settings, ssml = false) => {
   const audioType = 'mp3';
   const voiceName = settings?.voice ? settings.voice : DEFAULT_VOICE;
+  const awsVoice = AWS_VOICES.includes(settings?.voice);
+
+  if (ssml) {
+    const ssml = `<speak>${text}</speak>`;
+    const request = awsVoice
+      ? awsRequest(ssml, audioType, voiceName, true)
+      : tiroRequest(ssml, audioType, voiceName, true);
+    return {
+      backend: awsVoice ? BACKENDS.POLLY : BACKENDS.TIRO,
+      requests: [request],
+    };
+  }
   const specialTrim = SPECIAL_VOICES.includes(voiceName);
   const normalizedTexts = normalizeText(text, specialTrim);
-  const awsVoice = AWS_VOICES.includes(settings?.voice);
 
   const requests = normalizedTexts.map((text) => {
     const request = awsVoice
@@ -72,7 +84,15 @@ const getRequestHeaderAndContent = (text, settings) => {
   return { backend: awsVoice ? BACKENDS.POLLY : BACKENDS.TIRO, requests };
 };
 
-const tiroRequest = (text, audioType, voiceName) => {
+/**
+ * Creates the Tiro tts request.
+ * @param {string} text The text that should be converted to TTS
+ * @param {string} audioType The wanted audio output type
+ * @param {string} voiceName The voice used for TTS
+ * @param {boolean} ssml If the request handles SSML or not
+ * @returns
+ */
+const tiroRequest = (text, audioType, voiceName, ssml = false) => {
   const url = 'https://tts.tiro.is/v0/speech';
 
   return {
@@ -92,13 +112,21 @@ const tiroRequest = (text, audioType, voiceName) => {
         SampleRate: '16000',
         SpeechMarkTypes: [],
         Text: text,
-        TextType: 'text',
+        TextType: ssml ? 'ssml' : 'text',
         VoiceId: voiceName,
       }),
     },
   };
 };
 
-const awsRequest = (text, audioType, voiceName) => {
-  return pollyParams(text, audioType, voiceName);
+/**
+ * Creates the AWS polly request.
+ * @param {string} text The text that should be converted to TTS
+ * @param {string} audioType The wanted audio output type
+ * @param {string} voiceName The voice used for TTS
+ * @param {boolean} ssml If the request handles SSML or not
+ * @returns
+ */
+const awsRequest = (text, audioType, voiceName, ssml = false) => {
+  return pollyParams(text, audioType, voiceName, ssml);
 };
diff --git a/manifest.json b/manifest.json
index 3b55212..412b122 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": 3,
   "name": "WebRICE",
-  "version": "1.0.3",
+  "version": "1.0.4",
 
   "description": "Text to speech service for icelandic",
   "homepage_url": "https://www.webrice.is",
diff --git a/popup/popup.css b/popup/popup.css
index e3d4606..d5aef01 100644
--- a/popup/popup.css
+++ b/popup/popup.css
@@ -260,6 +260,11 @@ details > summary {
   margin-bottom: 0.25rem;
 }
 
+.small_margins {
+  margin-bottom: 0.25rem;
+  margin-top: 0.25rem;
+}
+
 .verification_item {
   border-radius: 1rem;
   background: white;
diff --git a/popup/popup.html b/popup/popup.html
index 0c34c16..7ae1973 100644
--- a/popup/popup.html
+++ b/popup/popup.html
@@ -171,6 +171,41 @@ <h3>Hljóðstyrkur</h3>
           />
         </div>
       </div>
+      <div class="webrice_more_item">
+        <details id="ssml_details">
+          <summary>SSML</summary>
+          <div class="webrice_flex_column gap_small">
+            <p small_margins>
+              Speech Synthesis Markup Language (SSML) gerir kleift að sérsníða
+              Text-To-Speech.
+            </p>
+            <h3 class="small_bottom_margin">Upplýsingar</h3>
+            <p class="small_margins">
+              Sjálfgefið bakendakerfi er veitt af Tiro og studd SSML merki og
+              dæmi má finna
+              <a href="https://tts.tiro.is/#tag/speech/paths/~1v0~1speech/post"
+                >hér</a
+              >.
+            </p>
+            <p id="help_aws" class="webrice_hide small_margins">
+              Fyrir Amazon Polly raddir (Karl, Dora) eru viðbótar SSML merki
+              studd. Dæmi og studd merki má finna
+              <a
+                href="https://docs.aws.amazon.com/polly/latest/dg/supportedtags.html"
+                >hér</a
+              >.
+            </p>
+            <p class="small_margins">
+              Sláðu inn SSML í textareitinn fyrir neðan og smelltu á
+              spilunarhnappinn ofan til að prófa.
+            </p>
+            <code>&lt;speak&gt;</code>
+            <textarea rows="10" id="webrice_ssml_text"></textarea>
+            <code>&lt;/speak&gt;</code>
+            <p id="ssml_error" class="webrice_hide small_margins"></p>
+          </div>
+        </details>
+      </div>
       <div class="webrice_more_item">
         <details>
           <summary>TTS bakgrunnskerfi</summary>
diff --git a/popup/popup.js b/popup/popup.js
index def8278..7c68396 100644
--- a/popup/popup.js
+++ b/popup/popup.js
@@ -28,6 +28,9 @@ const resetAWSCredsButton = document.getElementById('aws_reset_button');
 const resetAWSCredsDiv = document.getElementById('aws_reset');
 const doraRadio = document.getElementById('dora_aws');
 const karlRadio = document.getElementById('karl_aws');
+const helpAWS = document.getElementById('help_aws');
+const SSMLText = document.getElementById('webrice_ssml_text');
+const SSMLdetails = document.getElementById('ssml_details');
 
 loadingIcon.style.display = 'none'; // start by hiding loading icon
 
@@ -101,7 +104,12 @@ const toggleLoad = () => {
  */
 const onPlayClicked = async () => {
   toggleLoad();
-  const result = await sendToContent('play clicked', CONTENT_COMMANDS.PLAY);
+  // If SSML section is open and the more container is visible => request TTS with SSML
+  const command =
+    SSMLdetails.open && !isHidden(moreContainer)
+      ? CONTENT_COMMANDS.PLAY_SSML
+      : CONTENT_COMMANDS.PLAY;
+  const result = await sendToContent('play clicked', command);
   toggleLoad();
   return result;
 };
@@ -168,6 +176,11 @@ const onRadioClicked = (e) => {
   updateValue(WEBRICE_KEYS.VOICE, voice);
 };
 
+/**
+ * Updates a value both in storage and in content
+ * @param {string} key The key of the value to update
+ * @param {any} value The value that should be stored.
+ */
 const updateValue = (key, value) => {
   saveToStorage(key, value);
   updateContentValue(key, value);
@@ -190,10 +203,22 @@ const onPitchDefaultChanged = (e) => {
   pitchSliderDiv.classList.remove('webrice_disabled');
 };
 
+/**
+ * Updates values when volume slider changes
+ * @param {event} e
+ */
 const onVolumeSliderChanged = (e) => {
   updateValue(WEBRICE_KEYS.VOLUME, e.target.valueAsNumber);
 };
 
+/**
+ * Keeps the SSML values updated in storage and content
+ * @param {event} e
+ */
+const onSSMLTextChanged = (e) => {
+  updateValue(WEBRICE_KEYS.SSML_TEXT, e.target.value);
+};
+
 /**HTMLElement
  * On the AWS form submit update the stored values
  * @param {Event} e
@@ -225,16 +250,27 @@ const onAWSFormSubmit = async (e) => {
   saveToStorage(WEBRICE_KEYS.AWS_CREDS, awsCreds);
 };
 
+/**
+ * Hides AWS credential input fields
+ */
 const hideAWSCreds = () => {
   hide(awsForm);
   show(resetAWSCredsDiv);
 };
 
+/**
+ * Displays the AWS Form and hides the rest button
+ */
 const onResetAWS = () => {
   show(awsForm);
   hide(resetAWSCredsDiv);
 };
 
+/**
+ * Used to initialize values from storage into the popup form
+ * @param {string} key
+ * @param {any} value
+ */
 const initialize = (key, value) => {
   switch (key) {
     case WEBRICE_KEYS.PITCH:
@@ -271,11 +307,17 @@ const initialize = (key, value) => {
         hideAWSCreds();
         show(doraRadio);
         show(karlRadio);
+        show(helpAWS);
         break;
       }
       break;
     case WEBRICE_KEYS.VOICE:
       updateContentValue(key, value);
+      break;
+    case WEBRICE_KEYS.SSML_TEXT:
+      SSMLText.value = value;
+      updateContentValue(key, value);
+      break;
     default:
       break;
   }
@@ -301,6 +343,7 @@ pitchSlider.onchange = onPitchSliderChanged;
 volumeSlider.oninput = onVolumeSliderChanged;
 awsForm.onsubmit = onAWSFormSubmit;
 resetAWSCredsButton.onclick = onResetAWS;
+SSMLText.onkeyup = onSSMLTextChanged;
 
 let initialVoice = await getFromStorage(WEBRICE_KEYS.VOICE);
 if (!initialVoice) {
diff --git a/utils/aws-helper.js b/utils/aws-helper.js
index 12fc608..1f8a7e6 100644
--- a/utils/aws-helper.js
+++ b/utils/aws-helper.js
@@ -12,10 +12,11 @@ const testAws = async (region, accessKeyId, secretAccessKey) => {
   }
 };
 
-const pollyParams = (text, audioType, voice) => {
+const pollyParams = (text, audioType, voice, ssml = false) => {
   params = {
     Engine: 'standard',
     Text: text,
+    TextType: ssml ? 'ssml' : 'text',
     OutputFormat: audioType,
     VoiceId: voice,
   };