diff --git a/.eslintignore b/.eslintignore
index 0df74ed12..3e35788f4 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -496,6 +496,7 @@ packages/app-mobile/components/ExtendedWebView.js
 packages/app-mobile/components/FolderPicker.js
 packages/app-mobile/components/Icon.js
 packages/app-mobile/components/Modal.js
+packages/app-mobile/components/ModalDialog.js
 packages/app-mobile/components/NoteBodyViewer/NoteBodyViewer.js
 packages/app-mobile/components/NoteBodyViewer/bundledJs/Renderer.test.js
 packages/app-mobile/components/NoteBodyViewer/bundledJs/Renderer.js
@@ -592,6 +593,7 @@ packages/app-mobile/components/screens/ConfigScreen/types.js
 packages/app-mobile/components/screens/JoplinCloudLoginScreen.js
 packages/app-mobile/components/screens/LogScreen.js
 packages/app-mobile/components/screens/Note.js
+packages/app-mobile/components/screens/NoteTagsDialog.js
 packages/app-mobile/components/screens/Notes.js
 packages/app-mobile/components/screens/UpgradeSyncTargetScreen.js
 packages/app-mobile/components/screens/encryption-config.js
diff --git a/.gitignore b/.gitignore
index 21bb9c71c..03c3ad65f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -476,6 +476,7 @@ packages/app-mobile/components/ExtendedWebView.js
 packages/app-mobile/components/FolderPicker.js
 packages/app-mobile/components/Icon.js
 packages/app-mobile/components/Modal.js
+packages/app-mobile/components/ModalDialog.js
 packages/app-mobile/components/NoteBodyViewer/NoteBodyViewer.js
 packages/app-mobile/components/NoteBodyViewer/bundledJs/Renderer.test.js
 packages/app-mobile/components/NoteBodyViewer/bundledJs/Renderer.js
@@ -572,6 +573,7 @@ packages/app-mobile/components/screens/ConfigScreen/types.js
 packages/app-mobile/components/screens/JoplinCloudLoginScreen.js
 packages/app-mobile/components/screens/LogScreen.js
 packages/app-mobile/components/screens/Note.js
+packages/app-mobile/components/screens/NoteTagsDialog.js
 packages/app-mobile/components/screens/Notes.js
 packages/app-mobile/components/screens/UpgradeSyncTargetScreen.js
 packages/app-mobile/components/screens/encryption-config.js
diff --git a/packages/app-mobile/components/ModalDialog.js b/packages/app-mobile/components/ModalDialog.tsx
similarity index 72%
rename from packages/app-mobile/components/ModalDialog.js
rename to packages/app-mobile/components/ModalDialog.tsx
index 483515a53..3653cb408 100644
--- a/packages/app-mobile/components/ModalDialog.js
+++ b/packages/app-mobile/components/ModalDialog.tsx
@@ -1,24 +1,41 @@
-const React = require('react');
-const { Text, View, StyleSheet, Button } = require('react-native');
-const { themeStyle } = require('./global-style');
-const { _ } = require('@joplin/lib/locale');
+import * as React from 'react';
+import { ReactNode } from 'react';
+import { Text, View, StyleSheet, Button, TextStyle, ViewStyle } from 'react-native';
+import { themeStyle } from './global-style';
+import { _ } from '@joplin/lib/locale';
 
 import Modal from './Modal';
 
-class ModalDialog extends React.Component {
-	constructor() {
-		super();
+interface Props {
+	themeId: number;
+	ContentComponent: ReactNode;
+
+	buttonBarEnabled: boolean;
+	title: string;
+	onOkPress: ()=> void;
+	onCancelPress: ()=> void;
+}
+
+interface State {
+
+}
+
+class ModalDialog extends React.Component<Props, State> {
+	private styles_: any;
+
+	public constructor(props: Props) {
+		super(props);
 		this.styles_ = {};
 	}
 
-	styles() {
+	private styles() {
 		const themeId = this.props.themeId;
 		const theme = themeStyle(themeId);
 
 		if (this.styles_[themeId]) return this.styles_[themeId];
 		this.styles_ = {};
 
-		const styles = {
+		const styles: Record<string, ViewStyle|TextStyle> = {
 			modalWrapper: {
 				flex: 1,
 				justifyContent: 'center',
@@ -53,7 +70,7 @@ class ModalDialog extends React.Component {
 		return this.styles_[themeId];
 	}
 
-	render() {
+	public override render() {
 		const ContentComponent = this.props.ContentComponent;
 		const buttonBarEnabled = this.props.buttonBarEnabled !== false;
 
@@ -76,4 +93,4 @@ class ModalDialog extends React.Component {
 	}
 }
 
-module.exports = ModalDialog;
+export default ModalDialog;
diff --git a/packages/app-mobile/components/screens/Note.tsx b/packages/app-mobile/components/screens/Note.tsx
index dde1b495d..c68ed0437 100644
--- a/packages/app-mobile/components/screens/Note.tsx
+++ b/packages/app-mobile/components/screens/Note.tsx
@@ -26,7 +26,7 @@ import ActionButton from '../ActionButton';
 const { fileExtension, safeFileExtension } = require('@joplin/lib/path-utils');
 const mimeUtils = require('@joplin/lib/mime-utils.js').mime;
 import ScreenHeader, { MenuOptionType } from '../ScreenHeader';
-const NoteTagsDialog = require('./NoteTagsDialog');
+import NoteTagsDialog from './NoteTagsDialog';
 import time from '@joplin/lib/time';
 const { Checkbox } = require('../checkbox.js');
 import { _, currentLocale } from '@joplin/lib/locale';
diff --git a/packages/app-mobile/components/screens/NoteTagsDialog.js b/packages/app-mobile/components/screens/NoteTagsDialog.js
deleted file mode 100644
index 0078eb150..000000000
--- a/packages/app-mobile/components/screens/NoteTagsDialog.js
+++ /dev/null
@@ -1,213 +0,0 @@
-const React = require('react');
-
-const { StyleSheet, View, Text, FlatList, TouchableOpacity, TextInput } = require('react-native');
-const { connect } = require('react-redux');
-const Tag = require('@joplin/lib/models/Tag').default;
-const { _ } = require('@joplin/lib/locale');
-const { themeStyle } = require('../global-style');
-const Icon = require('react-native-vector-icons/Ionicons').default;
-const ModalDialog = require('../ModalDialog');
-const naturalCompare = require('string-natural-compare');
-
-// We need this to suppress the useless warning
-// https://github.com/oblador/react-native-vector-icons/issues/1465
-// eslint-disable-next-line no-console
-Icon.loadFont().catch((error) => { console.info(error); });
-
-class NoteTagsDialogComponent extends React.Component {
-	constructor() {
-		super();
-		this.styles_ = {};
-		this.state = {
-			noteTagIds: [],
-			noteId: null,
-			tagListData: [],
-			newTags: '',
-			savingTags: false,
-			tagFilter: '',
-		};
-
-		const noteHasTag = tagId => {
-			for (let i = 0; i < this.state.tagListData.length; i++) {
-				if (this.state.tagListData[i].id === tagId) return this.state.tagListData[i].selected;
-			}
-			return false;
-		};
-
-		const newTagTitles = () => {
-			return this.state.newTags
-				.split(',')
-				.map(t => t.trim().toLowerCase())
-				.filter(t => !!t);
-		};
-
-		this.tag_press = tagId => {
-			const newData = this.state.tagListData.slice();
-			for (let i = 0; i < newData.length; i++) {
-				const t = newData[i];
-				if (t.id === tagId) {
-					const newTag = { ...t };
-					newTag.selected = !newTag.selected;
-					newData[i] = newTag;
-					break;
-				}
-			}
-
-			this.setState({ tagListData: newData });
-		};
-
-		this.renderTag = data => {
-			const tag = data.item;
-			const iconName = noteHasTag(tag.id) ? 'checkbox-outline' : 'square-outline';
-			return (
-				<TouchableOpacity key={tag.id} onPress={() => this.tag_press(tag.id)} style={this.styles().tag}>
-					<View style={this.styles().tagIconText}>
-						<Icon name={iconName} style={this.styles().tagCheckbox} />
-						<Text style={this.styles().tagText}>{tag.title}</Text>
-					</View>
-				</TouchableOpacity>
-			);
-		};
-
-		this.tagKeyExtractor = (tag) => tag.id;
-
-		this.okButton_press = async () => {
-			this.setState({ savingTags: true });
-
-			try {
-				const tagIds = this.state.tagListData.filter(t => t.selected).map(t => t.id);
-				await Tag.setNoteTagsByIds(this.state.noteId, tagIds);
-
-				const extraTitles = newTagTitles();
-				for (let i = 0; i < extraTitles.length; i++) {
-					await Tag.addNoteTagByTitle(this.state.noteId, extraTitles[i]);
-				}
-			} finally {
-				this.setState({ savingTags: false });
-			}
-
-			if (this.props.onCloseRequested) this.props.onCloseRequested();
-		};
-
-		this.cancelButton_press = () => {
-			if (this.props.onCloseRequested) this.props.onCloseRequested();
-		};
-
-		this.filterTags = (allTags) => {
-			return allTags.filter((tag) => tag.title.toLowerCase().includes(this.state.tagFilter.toLowerCase()), allTags);
-		};
-	}
-
-	UNSAFE_componentWillMount() {
-		const noteId = this.props.noteId;
-		this.setState({ noteId: noteId });
-		this.loadNoteTags(noteId);
-	}
-
-	async loadNoteTags(noteId) {
-		const tags = await Tag.tagsByNoteId(noteId);
-		const tagIds = tags.map(t => t.id);
-
-		const tagListData = this.props.tags.map(tag => {
-			return {
-				id: tag.id,
-				title: tag.title,
-				selected: tagIds.indexOf(tag.id) >= 0,
-			};
-		});
-
-		tagListData.sort((a, b) => {
-			if (a.selected === b.selected) return naturalCompare(a.title, b.title, { caseInsensitive: true });
-			else if (b.selected === true) return 1;
-			else return -1;
-		});
-
-		this.setState({ tagListData: tagListData });
-	}
-
-	styles() {
-		const themeId = this.props.themeId;
-		const theme = themeStyle(themeId);
-
-		if (this.styles_[themeId]) return this.styles_[themeId];
-		this.styles_ = {};
-
-		const styles = {
-			tag: {
-				padding: 10,
-				borderBottomWidth: 1,
-				borderBottomColor: theme.dividerColor,
-			},
-			tagIconText: {
-				flexDirection: 'row',
-				alignItems: 'center',
-			},
-			tagText: { ...theme.normalText },
-			tagCheckbox: {
-				marginRight: 8,
-				fontSize: 20,
-				color: theme.color,
-			},
-			tagBox: {
-				flexDirection: 'row',
-				alignItems: 'center',
-				paddingLeft: 10,
-				paddingRight: 10,
-				borderBottomWidth: 1,
-				borderBottomColor: theme.dividerColor,
-			},
-			newTagBoxLabel: { ...theme.normalText, marginRight: 8 },
-			tagBoxInput: { ...theme.lineInput, flex: 1 },
-		};
-
-		this.styles_[themeId] = StyleSheet.create(styles);
-		return this.styles_[themeId];
-	}
-
-	render() {
-		const theme = themeStyle(this.props.themeId);
-
-		const dialogContent = (
-			<View style={{ flex: 1 }}>
-				<View style={this.styles().tagBox}>
-					<Text style={this.styles().newTagBoxLabel}>{_('New tags:')}</Text>
-					<TextInput
-						selectionColor={theme.textSelectionColor}
-						keyboardAppearance={theme.keyboardAppearance}
-						value={this.state.newTags}
-						onChangeText={value => {
-							this.setState({ newTags: value });
-						}}
-						style={this.styles().tagBoxInput}
-						placeholder={_('tag1, tag2, ...')}
-					/>
-				</View>
-				<View style={this.styles().tagBox}>
-					<TextInput
-						selectionColor={theme.textSelectionColor}
-						keyboardAppearance={theme.keyboardAppearance}
-						value={this.state.tagFilter}
-						onChangeText={value => {
-							this.setState({ tagFilter: value });
-						}}
-						placeholder={_('Filter tags')}
-						style={this.styles().tagBoxInput}
-					/>
-				</View>
-				<FlatList data={this.filterTags(this.state.tagListData)} renderItem={this.renderTag} keyExtractor={this.tagKeyExtractor} />
-			</View>
-		);
-
-		return <ModalDialog themeId={this.props.themeId} ContentComponent={dialogContent} title={_('Type new tags or select from list')} onOkPress={this.okButton_press} onCancelPress={this.cancelButton_press} buttonBarEnabled={!this.state.savingTags} />;
-	}
-}
-
-const NoteTagsDialog = connect(state => {
-	return {
-		themeId: state.settings.theme,
-		tags: state.tags,
-		noteId: state.selectedNoteIds.length ? state.selectedNoteIds[0] : null,
-	};
-})(NoteTagsDialogComponent);
-
-module.exports = NoteTagsDialog;
diff --git a/packages/app-mobile/components/screens/NoteTagsDialog.tsx b/packages/app-mobile/components/screens/NoteTagsDialog.tsx
new file mode 100644
index 000000000..e3e1cdafe
--- /dev/null
+++ b/packages/app-mobile/components/screens/NoteTagsDialog.tsx
@@ -0,0 +1,239 @@
+import * as React from 'react';
+
+import { StyleSheet, View, Text, FlatList, TouchableOpacity, TextInput } from 'react-native';
+import { connect } from 'react-redux';
+import Tag from '@joplin/lib/models/Tag';
+import { _ } from '@joplin/lib/locale';
+import { themeStyle } from '../global-style';
+const Icon = require('react-native-vector-icons/Ionicons').default;
+import ModalDialog from '../ModalDialog';
+import { AppState } from '../../utils/types';
+import { TagEntity } from '@joplin/lib/services/database/types';
+const naturalCompare = require('string-natural-compare');
+
+// We need this to suppress the useless warning
+// https://github.com/oblador/react-native-vector-icons/issues/1465
+// eslint-disable-next-line no-console
+Icon.loadFont().catch((error: any) => { console.info(error); });
+
+interface Props {
+	themeId: number;
+	noteId: string|null;
+	onCloseRequested?: ()=> void;
+	tags: TagEntity[];
+}
+
+interface TagListRecord {
+	id: string;
+	title: string;
+	selected: boolean;
+}
+
+interface State {
+	noteTagIds: string[];
+	tagListData: TagListRecord[];
+	noteId: string|null;
+	newTags: string;
+	savingTags: boolean;
+	tagFilter: string;
+}
+
+class NoteTagsDialogComponent extends React.Component<Props, State> {
+	private styles_: any;
+
+	public constructor(props: Props) {
+		super(props);
+		this.styles_ = {};
+		this.state = {
+			noteTagIds: [],
+			noteId: null,
+			tagListData: [],
+			newTags: '',
+			savingTags: false,
+			tagFilter: '',
+		};
+	}
+
+	private noteHasTag(tagId: string) {
+		for (let i = 0; i < this.state.tagListData.length; i++) {
+			if (this.state.tagListData[i].id === tagId) return this.state.tagListData[i].selected;
+		}
+		return false;
+	}
+
+	private newTagTitles() {
+		return this.state.newTags
+			.split(',')
+			.map(t => t.trim().toLowerCase())
+			.filter(t => !!t);
+	}
+
+	private tag_press = (tagId: string) => {
+		const newData = this.state.tagListData.slice();
+		for (let i = 0; i < newData.length; i++) {
+			const t = newData[i];
+			if (t.id === tagId) {
+				const newTag = { ...t };
+				newTag.selected = !newTag.selected;
+				newData[i] = newTag;
+				break;
+			}
+		}
+
+		this.setState({ tagListData: newData });
+	};
+
+	private renderTag = (data: { item: TagListRecord }) => {
+		const tag = data.item;
+		const iconName = this.noteHasTag(tag.id) ? 'checkbox-outline' : 'square-outline';
+		return (
+			<TouchableOpacity key={tag.id} onPress={() => this.tag_press(tag.id)} style={this.styles().tag}>
+				<View style={this.styles().tagIconText}>
+					<Icon name={iconName} style={this.styles().tagCheckbox} />
+					<Text style={this.styles().tagText}>{tag.title}</Text>
+				</View>
+			</TouchableOpacity>
+		);
+	};
+
+	private tagKeyExtractor = (tag: TagListRecord) => tag.id;
+
+	private okButton_press = async () => {
+		this.setState({ savingTags: true });
+
+		try {
+			const tagIds = this.state.tagListData.filter(t => t.selected).map(t => t.id);
+			await Tag.setNoteTagsByIds(this.state.noteId, tagIds);
+
+			const extraTitles = this.newTagTitles();
+			for (let i = 0; i < extraTitles.length; i++) {
+				await Tag.addNoteTagByTitle(this.state.noteId, extraTitles[i]);
+			}
+		} finally {
+			this.setState({ savingTags: false });
+		}
+
+		if (this.props.onCloseRequested) this.props.onCloseRequested();
+	};
+
+	private cancelButton_press = () => {
+		if (this.props.onCloseRequested) this.props.onCloseRequested();
+	};
+
+	private filterTags(allTags: TagListRecord[]) {
+		return allTags.filter((tag) => tag.title.toLowerCase().includes(this.state.tagFilter.toLowerCase()), allTags);
+	}
+
+	public override UNSAFE_componentWillMount() {
+		const noteId = this.props.noteId;
+		this.setState({ noteId: noteId });
+		void this.loadNoteTags(noteId);
+	}
+
+	private async loadNoteTags(noteId: string) {
+		const tags = await Tag.tagsByNoteId(noteId);
+		const tagIds = tags.map(t => t.id);
+
+		const tagListData = this.props.tags.map(tag => {
+			return {
+				id: tag.id,
+				title: tag.title,
+				selected: tagIds.indexOf(tag.id) >= 0,
+			};
+		});
+
+		tagListData.sort((a, b) => {
+			if (a.selected === b.selected) return naturalCompare(a.title, b.title, { caseInsensitive: true });
+			else if (b.selected === true) return 1;
+			else return -1;
+		});
+
+		this.setState({ tagListData: tagListData });
+	}
+
+	private styles() {
+		const themeId = this.props.themeId;
+		const theme = themeStyle(themeId);
+
+		if (this.styles_[themeId]) return this.styles_[themeId];
+		this.styles_ = {};
+
+		const styles = StyleSheet.create({
+			tag: {
+				padding: 10,
+				borderBottomWidth: 1,
+				borderBottomColor: theme.dividerColor,
+			},
+			tagIconText: {
+				flexDirection: 'row',
+				alignItems: 'center',
+			},
+			tagText: { ...theme.normalText },
+			tagCheckbox: {
+				marginRight: 8,
+				fontSize: 20,
+				color: theme.color,
+			},
+			tagBox: {
+				flexDirection: 'row',
+				alignItems: 'center',
+				paddingLeft: 10,
+				paddingRight: 10,
+				borderBottomWidth: 1,
+				borderBottomColor: theme.dividerColor,
+			},
+			newTagBoxLabel: { ...theme.normalText, marginRight: 8 },
+			tagBoxInput: { ...theme.lineInput, flex: 1 },
+		});
+
+		this.styles_[themeId] = styles;
+		return this.styles_[themeId];
+	}
+
+	public override render() {
+		const theme = themeStyle(this.props.themeId);
+
+		const dialogContent = (
+			<View style={{ flex: 1 }}>
+				<View style={this.styles().tagBox}>
+					<Text style={this.styles().newTagBoxLabel}>{_('New tags:')}</Text>
+					<TextInput
+						selectionColor={theme.textSelectionColor}
+						keyboardAppearance={theme.keyboardAppearance}
+						value={this.state.newTags}
+						onChangeText={value => {
+							this.setState({ newTags: value });
+						}}
+						style={this.styles().tagBoxInput}
+						placeholder={_('tag1, tag2, ...')}
+					/>
+				</View>
+				<View style={this.styles().tagBox}>
+					<TextInput
+						selectionColor={theme.textSelectionColor}
+						keyboardAppearance={theme.keyboardAppearance}
+						value={this.state.tagFilter}
+						onChangeText={value => {
+							this.setState({ tagFilter: value });
+						}}
+						placeholder={_('Filter tags')}
+						style={this.styles().tagBoxInput}
+					/>
+				</View>
+				<FlatList data={this.filterTags(this.state.tagListData)} renderItem={this.renderTag} keyExtractor={this.tagKeyExtractor} />
+			</View>
+		);
+
+		return <ModalDialog themeId={this.props.themeId} ContentComponent={dialogContent} title={_('Type new tags or select from list')} onOkPress={this.okButton_press} onCancelPress={this.cancelButton_press} buttonBarEnabled={!this.state.savingTags} />;
+	}
+}
+
+const NoteTagsDialog = connect((state: AppState) => {
+	return {
+		themeId: state.settings.theme,
+		tags: state.tags,
+		noteId: state.selectedNoteIds.length ? state.selectedNoteIds[0] : null,
+	};
+})(NoteTagsDialogComponent);
+
+export default NoteTagsDialog;