diff --git a/app/javascript/flavours/glitch/actions/compose.js b/app/javascript/flavours/glitch/actions/compose.js
index f117ce771..2fb97fa17 100644
--- a/app/javascript/flavours/glitch/actions/compose.js
+++ b/app/javascript/flavours/glitch/actions/compose.js
@@ -46,6 +46,7 @@ export const COMPOSE_SPOILERNESS_CHANGE = 'COMPOSE_SPOILERNESS_CHANGE';
 export const COMPOSE_SPOILER_TEXT_CHANGE = 'COMPOSE_SPOILER_TEXT_CHANGE';
 export const COMPOSE_VISIBILITY_CHANGE  = 'COMPOSE_VISIBILITY_CHANGE';
 export const COMPOSE_LISTABILITY_CHANGE = 'COMPOSE_LISTABILITY_CHANGE';
+export const COMPOSE_CONTENT_TYPE_CHANGE = 'COMPOSE_CONTENT_TYPE_CHANGE';
 
 export const COMPOSE_EMOJI_INSERT = 'COMPOSE_EMOJI_INSERT';
 
@@ -147,6 +148,7 @@ export function submitCompose(routerHistory) {
     }
     api(getState).post('/api/v1/statuses', {
       status,
+      content_type: getState().getIn(['compose', 'content_type']),
       in_reply_to_id: getState().getIn(['compose', 'in_reply_to'], null),
       media_ids: media.map(item => item.get('id')),
       sensitive: getState().getIn(['compose', 'sensitive']) || (spoilerText.length > 0 && media.size !== 0),
@@ -517,6 +519,13 @@ export function changeComposeVisibility(value) {
   };
 };
 
+export function changeComposeContentType(value) {
+  return {
+    type: COMPOSE_CONTENT_TYPE_CHANGE,
+    value,
+  };
+};
+
 export function insertEmojiCompose(position, emoji) {
   return {
     type: COMPOSE_EMOJI_INSERT,
diff --git a/app/javascript/flavours/glitch/features/compose/components/compose_form.js b/app/javascript/flavours/glitch/features/compose/components/compose_form.js
index e8f000b1e..4e93e2d84 100644
--- a/app/javascript/flavours/glitch/features/compose/components/compose_form.js
+++ b/app/javascript/flavours/glitch/features/compose/components/compose_form.js
@@ -38,6 +38,7 @@ class ComposeForm extends ImmutablePureComponent {
     suggestions: ImmutablePropTypes.list,
     spoiler: PropTypes.bool,
     privacy: PropTypes.string,
+    contentType: PropTypes.string,
     spoilerText: PropTypes.string,
     focusDate: PropTypes.instanceOf(Date),
     caretPosition: PropTypes.number,
@@ -66,6 +67,7 @@ class ComposeForm extends ImmutablePureComponent {
     preselectOnReply: PropTypes.bool,
     onChangeSpoilerness: PropTypes.func,
     onChangeVisibility: PropTypes.func,
+    onChangeContentType: PropTypes.func,
     onMount: PropTypes.func,
     onUnmount: PropTypes.func,
     onPaste: PropTypes.func,
@@ -285,10 +287,12 @@ class ComposeForm extends ImmutablePureComponent {
       media,
       onChangeSpoilerness,
       onChangeVisibility,
+      onChangeContentType,
       onClearSuggestions,
       onFetchSuggestions,
       onPaste,
       privacy,
+      contentType,
       sensitive,
       showSearch,
       sideArm,
@@ -356,9 +360,11 @@ class ComposeForm extends ImmutablePureComponent {
           advancedOptions={advancedOptions}
           disabled={isSubmitting}
           onChangeVisibility={onChangeVisibility}
+          onChangeContentType={onChangeContentType}
           onToggleSpoiler={spoilersAlwaysOn ? null : onChangeSpoilerness}
           onUpload={onPaste}
           privacy={privacy}
+          contentType={contentType}
           sensitive={sensitive || (spoilersAlwaysOn && spoilerText && spoilerText.length > 0)}
           spoiler={spoilersAlwaysOn ? (spoilerText && spoilerText.length > 0) : spoiler}
         />
@@ -369,6 +375,7 @@ class ComposeForm extends ImmutablePureComponent {
           onSecondarySubmit={handleSecondarySubmit}
           onSubmit={handleSubmit}
           privacy={privacy}
+          contentType={contentType}
           sideArm={sideArm}
         />
       </div>
diff --git a/app/javascript/flavours/glitch/features/compose/components/options.js b/app/javascript/flavours/glitch/features/compose/components/options.js
index ee9730961..908126c6f 100644
--- a/app/javascript/flavours/glitch/features/compose/components/options.js
+++ b/app/javascript/flavours/glitch/features/compose/components/options.js
@@ -29,6 +29,10 @@ const messages = defineMessages({
     defaultMessage: 'Adjust status privacy',
     id: 'privacy.change',
   },
+  content_type: {
+    defaultMessage: 'Content type',
+    id: 'content-type.change',
+  },
   direct_long: {
     defaultMessage: 'Post to mentioned users only',
     id: 'privacy.direct.long',
@@ -41,6 +45,10 @@ const messages = defineMessages({
     defaultMessage: 'Draw something',
     id: 'compose.attach.doodle',
   },
+  html: {
+    defaultMessage: 'HTML',
+    id: 'compose.content-type.html',
+  },
   local_only_long: {
     defaultMessage: 'Do not post to other instances',
     id: 'advanced_options.local-only.long',
@@ -49,6 +57,14 @@ const messages = defineMessages({
     defaultMessage: 'Local-only',
     id: 'advanced_options.local-only.short',
   },
+  markdown: {
+    defaultMessage: 'Markdown',
+    id: 'compose.content-type.markdown',
+  },
+  plain: {
+    defaultMessage: 'Plain text',
+    id: 'compose.content-type.plain',
+  },
   private_long: {
     defaultMessage: 'Post to followers only',
     id: 'privacy.private.long',
@@ -113,6 +129,7 @@ class ComposerOptions extends ImmutablePureComponent {
     intl: PropTypes.object.isRequired,
     onChangeAdvancedOption: PropTypes.func,
     onChangeVisibility: PropTypes.func,
+    onChangeContentType: PropTypes.func,
     onTogglePoll: PropTypes.func,
     onDoodleOpen: PropTypes.func,
     onModalClose: PropTypes.func,
@@ -120,6 +137,7 @@ class ComposerOptions extends ImmutablePureComponent {
     onToggleSpoiler: PropTypes.func,
     onUpload: PropTypes.func,
     privacy: PropTypes.string,
+    contentType: PropTypes.string,
     resetFileKey: PropTypes.number,
     spoiler: PropTypes.bool,
   };
@@ -162,6 +180,7 @@ class ComposerOptions extends ImmutablePureComponent {
     const {
       acceptContentTypes,
       advancedOptions,
+      contentType,
       disabled,
       allowMedia,
       hasMedia,
@@ -169,6 +188,7 @@ class ComposerOptions extends ImmutablePureComponent {
       hasPoll,
       intl,
       onChangeAdvancedOption,
+      onChangeContentType,
       onChangeVisibility,
       onTogglePoll,
       onModalClose,
@@ -208,6 +228,24 @@ class ComposerOptions extends ImmutablePureComponent {
       },
     };
 
+    const contentTypeItems = {
+      plain: {
+        icon: 'file',
+        name: 'text/plain',
+        text: <FormattedMessage {...messages.plain} />,
+      },
+      html: {
+        icon: 'file-text',
+        name: 'text/html',
+        text: <FormattedMessage {...messages.html} />,
+      },
+      markdown: {
+        icon: 'file-text',
+        name: 'text/markdown',
+        text: <FormattedMessage {...messages.markdown} />,
+      },
+    };
+
     //  The result.
     return (
       <div className='composer--options'>
@@ -272,6 +310,19 @@ class ComposerOptions extends ImmutablePureComponent {
           title={intl.formatMessage(messages.change_privacy)}
           value={privacy}
         />
+        <Dropdown
+          icon="code"
+          items={[
+            contentTypeItems.plain,
+            contentTypeItems.html,
+            contentTypeItems.markdown,
+          ]}
+          onChange={onChangeContentType}
+          onModalClose={onModalClose}
+          onModalOpen={onModalOpen}
+          title={intl.formatMessage(messages.content_type)}
+          value={contentType}
+        />
         {onToggleSpoiler && (
           <TextIconButton
             active={spoiler}
diff --git a/app/javascript/flavours/glitch/features/compose/containers/compose_form_container.js b/app/javascript/flavours/glitch/features/compose/containers/compose_form_container.js
index 814f9a97a..ce5c3afb3 100644
--- a/app/javascript/flavours/glitch/features/compose/containers/compose_form_container.js
+++ b/app/javascript/flavours/glitch/features/compose/containers/compose_form_container.js
@@ -6,6 +6,7 @@ import {
   changeComposeSpoilerText,
   changeComposeSpoilerness,
   changeComposeVisibility,
+  changeComposeContentType,
   clearComposeSuggestions,
   fetchComposeSuggestions,
   insertEmojiCompose,
@@ -57,6 +58,7 @@ function mapStateToProps (state) {
     media: state.getIn(['compose', 'media_attachments']),
     preselectDate: state.getIn(['compose', 'preselectDate']),
     privacy: state.getIn(['compose', 'privacy']),
+    contentType: state.getIn(['compose', 'content_type']),
     sideArm: sideArmPrivacy,
     sensitive: state.getIn(['compose', 'sensitive']),
     showSearch: state.getIn(['search', 'submitted']) && !state.getIn(['search', 'hidden']),
@@ -98,6 +100,10 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
     dispatch(changeComposeSpoilerText(text));
   },
 
+  onChangeContentType(value) {
+    dispatch(changeComposeContentType(value));
+  },
+
   onPaste(files) {
     dispatch(uploadCompose(files));
   },
diff --git a/app/javascript/flavours/glitch/features/compose/index.js b/app/javascript/flavours/glitch/features/compose/index.js
index a7795a04d..e60eedfd9 100644
--- a/app/javascript/flavours/glitch/features/compose/index.js
+++ b/app/javascript/flavours/glitch/features/compose/index.js
@@ -29,7 +29,7 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
   },
 });
 
-export default @connect(mapStateToProps, mapDispatchToProps)
+export default @connect(mapStateToProps)
 @injectIntl
 class Compose extends React.PureComponent {
   static propTypes = {
diff --git a/app/javascript/flavours/glitch/reducers/compose.js b/app/javascript/flavours/glitch/reducers/compose.js
index bc1785a48..516da859a 100644
--- a/app/javascript/flavours/glitch/reducers/compose.js
+++ b/app/javascript/flavours/glitch/reducers/compose.js
@@ -25,6 +25,7 @@ import {
   COMPOSE_SPOILERNESS_CHANGE,
   COMPOSE_SPOILER_TEXT_CHANGE,
   COMPOSE_VISIBILITY_CHANGE,
+  COMPOSE_CONTENT_TYPE_CHANGE,
   COMPOSE_EMOJI_INSERT,
   COMPOSE_UPLOAD_CHANGE_REQUEST,
   COMPOSE_UPLOAD_CHANGE_SUCCESS,
@@ -66,6 +67,7 @@ const initialState = ImmutableMap({
   spoiler: false,
   spoiler_text: '',
   privacy: null,
+  content_type: 'text/plain',
   text: '',
   focusDate: null,
   caretPosition: null,
@@ -310,6 +312,10 @@ export default function compose(state = initialState, action) {
     return state
       .set('privacy', action.value)
       .set('idempotencyKey', uuid());
+  case COMPOSE_CONTENT_TYPE_CHANGE:
+    return state
+      .set('content_type', action.value)
+      .set('idempotencyKey', uuid());
   case COMPOSE_CHANGE:
     return state
       .set('text', action.text)