diff --git a/app/soapbox/components/ui/avatar/avatar.tsx b/app/soapbox/components/ui/avatar/avatar.tsx
index a327e6840..6818509e8 100644
--- a/app/soapbox/components/ui/avatar/avatar.tsx
+++ b/app/soapbox/components/ui/avatar/avatar.tsx
@@ -6,11 +6,15 @@ import StillImage from 'soapbox/components/still_image';
 const AVATAR_SIZE = 42;
 
 interface IAvatar {
+  /** URL to the avatar image. */
   src: string,
+  /** Width and height of the avatar in pixels. */
   size?: number,
+  /** Extra class names for the div surrounding the avatar image. */
   className?: string,
 }
 
+/** Round profile avatar for accounts. */
 const Avatar = (props: IAvatar) => {
   const { src, size = AVATAR_SIZE, className } = props;
 
diff --git a/app/soapbox/components/ui/button/button.tsx b/app/soapbox/components/ui/button/button.tsx
index c88d228f5..f98535166 100644
--- a/app/soapbox/components/ui/button/button.tsx
+++ b/app/soapbox/components/ui/button/button.tsx
@@ -8,20 +8,33 @@ import { useButtonStyles } from './useButtonStyles';
 import type { ButtonSizes, ButtonThemes } from './useButtonStyles';
 
 interface IButton {
+  /** Whether this button expands the width of its container. */
   block?: boolean,
+  /** Elements inside the <button> */
   children?: React.ReactNode,
+  /** @deprecated unused */
   classNames?: string,
+  /** Prevent the button from being clicked. */
   disabled?: boolean,
+  /** URL to an SVG icon to render inside the button. */
   icon?: string,
+  /** Action when the button is clicked. */
   onClick?: (event: React.MouseEvent<HTMLButtonElement>) => void,
+  /** A predefined button size. */
   size?: ButtonSizes,
+  /** @deprecated unused */
   style?: React.CSSProperties,
+  /** Text inside the button. Takes precedence over `children`. */
   text?: React.ReactNode,
+  /** Makes the button into a navlink, if provided. */
   to?: string,
+  /** Styles the button visually with a predefined theme. */
   theme?: ButtonThemes,
+  /** Whether this button should submit a form by default. */
   type?: 'button' | 'submit',
 }
 
+/** Customizable button element with various themes. */
 const Button = React.forwardRef<HTMLButtonElement, IButton>((props, ref): JSX.Element => {
   const {
     block = false,
diff --git a/app/soapbox/components/ui/card/card.tsx b/app/soapbox/components/ui/card/card.tsx
index 1c72c4841..25238c984 100644
--- a/app/soapbox/components/ui/card/card.tsx
+++ b/app/soapbox/components/ui/card/card.tsx
@@ -17,12 +17,17 @@ const messages = defineMessages({
 });
 
 interface ICard {
+  /** The type of card. */
   variant?: 'rounded',
+  /** Card size preset. */
   size?: 'md' | 'lg' | 'xl',
+  /** Extra classnames for the <div> element. */
   className?: string,
+  /** Elements inside the card. */
   children: React.ReactNode,
 }
 
+/** An opaque backdrop to hold a collection of related elements. */
 const Card = React.forwardRef<HTMLDivElement, ICard>(({ children, variant, size = 'md', className, ...filteredProps }, ref): JSX.Element => (
   <div
     ref={ref}
@@ -42,6 +47,7 @@ interface ICardHeader {
   onBackClick?: (event: React.MouseEvent) => void
 }
 
+/** Typically holds a CardTitle. */
 const CardHeader: React.FC<ICardHeader> = ({ children, backHref, onBackClick }): JSX.Element => {
   const intl = useIntl();
 
@@ -74,10 +80,12 @@ interface ICardTitle {
   title: string | React.ReactNode
 }
 
+/** A card's title. */
 const CardTitle = ({ title }: ICardTitle): JSX.Element => (
   <Text size='xl' weight='bold' tag='h1' data-testid='card-title'>{title}</Text>
 );
 
+/** A card's body. */
 const CardBody: React.FC = ({ children }): JSX.Element => (
   <div data-testid='card-body'>{children}</div>
 );
diff --git a/app/soapbox/components/ui/column/column.tsx b/app/soapbox/components/ui/column/column.tsx
index c27a867dd..f762fbbb7 100644
--- a/app/soapbox/components/ui/column/column.tsx
+++ b/app/soapbox/components/ui/column/column.tsx
@@ -7,13 +7,19 @@ import Helmet from 'soapbox/components/helmet';
 import { Card, CardBody, CardHeader, CardTitle } from '../card/card';
 
 interface IColumn {
+  /** Route the back button goes to. */
   backHref?: string,
+  /** Column title text. */
   label?: string,
+  /** Whether this column should have a transparent background. */
   transparent?: boolean,
+  /** Whether this column should have a title and back button. */
   withHeader?: boolean,
+  /** Extra class name for top <div> element. */
   className?: string,
 }
 
+/** A backdrop for the main section of the UI. */
 const Column: React.FC<IColumn> = React.forwardRef((props, ref: React.ForwardedRef<HTMLDivElement>): JSX.Element => {
   const { backHref, children, label, transparent = false, withHeader = true, className } = props;
 
diff --git a/app/soapbox/components/ui/counter/counter.tsx b/app/soapbox/components/ui/counter/counter.tsx
index 14afe3e49..46d192419 100644
--- a/app/soapbox/components/ui/counter/counter.tsx
+++ b/app/soapbox/components/ui/counter/counter.tsx
@@ -3,6 +3,7 @@ import React from 'react';
 import { shortNumberFormat } from 'soapbox/utils/numbers';
 
 interface ICounter {
+  /** Number this counter should display. */
   count: number,
 }
 
diff --git a/app/soapbox/components/ui/emoji-selector/emoji-selector.tsx b/app/soapbox/components/ui/emoji-selector/emoji-selector.tsx
index c005fa728..e17f2a1d4 100644
--- a/app/soapbox/components/ui/emoji-selector/emoji-selector.tsx
+++ b/app/soapbox/components/ui/emoji-selector/emoji-selector.tsx
@@ -4,12 +4,17 @@ import React from 'react';
 import { Emoji, HStack } from 'soapbox/components/ui';
 
 interface IEmojiButton {
+  /** Unicode emoji character. */
   emoji: string,
+  /** Event handler when the emoji is clicked. */
   onClick: React.EventHandler<React.MouseEvent>,
+  /** Extra class name on the <button> element. */
   className?: string,
+  /** Tab order of the button. */
   tabIndex?: number,
 }
 
+/** Clickable emoji button that scales when hovered. */
 const EmojiButton: React.FC<IEmojiButton> = ({ emoji, className, onClick, tabIndex }): JSX.Element => {
   return (
     <button className={classNames(className)} onClick={onClick} tabIndex={tabIndex}>
@@ -19,12 +24,17 @@ const EmojiButton: React.FC<IEmojiButton> = ({ emoji, className, onClick, tabInd
 };
 
 interface IEmojiSelector {
+  /** List of Unicode emoji characters. */
   emojis: Iterable<string>,
+  /** Event handler when an emoji is clicked. */
   onReact: (emoji: string) => void,
+  /** Whether the selector should be visible. */
   visible?: boolean,
+  /** Whether the selector should be focused. */
   focused?: boolean,
 }
 
+/** Panel with a row of emoji buttons. */
 const EmojiSelector: React.FC<IEmojiSelector> = ({ emojis, onReact, visible = false, focused = false }): JSX.Element => {
 
   const handleReact = (emoji: string): React.EventHandler<React.MouseEvent> => {
diff --git a/app/soapbox/components/ui/emoji/emoji.tsx b/app/soapbox/components/ui/emoji/emoji.tsx
index 59d00df2d..826f7482b 100644
--- a/app/soapbox/components/ui/emoji/emoji.tsx
+++ b/app/soapbox/components/ui/emoji/emoji.tsx
@@ -4,9 +4,11 @@ import { removeVS16s, toCodePoints } from 'soapbox/utils/emoji';
 import { joinPublicPath } from 'soapbox/utils/static';
 
 interface IEmoji extends React.ImgHTMLAttributes<HTMLImageElement> {
+  /** Unicode emoji character. */
   emoji: string,
 }
 
+/** A single emoji image. */
 const Emoji: React.FC<IEmoji> = (props): JSX.Element | null => {
   const { emoji, alt, ...rest } = props;
   const codepoints = toCodePoints(removeVS16s(emoji));
diff --git a/app/soapbox/components/ui/form-actions/form-actions.tsx b/app/soapbox/components/ui/form-actions/form-actions.tsx
index 63aca3fce..a09fb02dc 100644
--- a/app/soapbox/components/ui/form-actions/form-actions.tsx
+++ b/app/soapbox/components/ui/form-actions/form-actions.tsx
@@ -1,5 +1,6 @@
 import React from 'react';
 
+/** Container element to house form actions. */
 const FormActions: React.FC = ({ children }) => (
   <div className='flex justify-end space-x-2'>
     {children}
diff --git a/app/soapbox/components/ui/form-group/form-group.tsx b/app/soapbox/components/ui/form-group/form-group.tsx
index c0b587526..193f2db9d 100644
--- a/app/soapbox/components/ui/form-group/form-group.tsx
+++ b/app/soapbox/components/ui/form-group/form-group.tsx
@@ -2,11 +2,15 @@ import React, { useMemo } from 'react';
 import { v4 as uuidv4 } from 'uuid';
 
 interface IFormGroup {
+  /** Input label message. */
   hintText?: React.ReactNode,
+  /** Input hint message. */
   labelText: React.ReactNode,
+  /** Input errors. */
   errors?: string[]
 }
 
+/** Input element with label and hint. */
 const FormGroup: React.FC<IFormGroup> = (props) => {
   const { children, errors = [], labelText, hintText } = props;
   const formFieldId: string = useMemo(() => `field-${uuidv4()}`, []);
diff --git a/app/soapbox/components/ui/form/form.tsx b/app/soapbox/components/ui/form/form.tsx
index 3787b0399..59ca180b1 100644
--- a/app/soapbox/components/ui/form/form.tsx
+++ b/app/soapbox/components/ui/form/form.tsx
@@ -1,10 +1,13 @@
 import * as React from 'react';
 
 interface IForm {
+  /** Form submission event handler. */
   onSubmit?: (event: React.FormEvent) => void,
+  /** Class name override for the <form> element. */
   className?: string,
 }
 
+/** Form element with custom styles. */
 const Form: React.FC<IForm> = ({ onSubmit, children, ...filteredProps }) => {
   const handleSubmit = React.useCallback((event) => {
     event.preventDefault();
diff --git a/app/soapbox/components/ui/hstack/hstack.tsx b/app/soapbox/components/ui/hstack/hstack.tsx
index 29dfa9f37..44dac93c7 100644
--- a/app/soapbox/components/ui/hstack/hstack.tsx
+++ b/app/soapbox/components/ui/hstack/hstack.tsx
@@ -24,14 +24,21 @@ const spaces = {
 };
 
 interface IHStack {
+  /** Vertical alignment of children. */
   alignItems?: 'top' | 'bottom' | 'center' | 'start',
+  /** Extra class names on the <div> element. */
   className?: string,
+  /** Horizontal alignment of children. */
   justifyContent?: 'between' | 'center',
+  /** Size of the gap between elements. */
   space?: 0.5 | 1 | 1.5 | 2 | 3 | 4 | 6,
+  /** Whether to let the flexbox grow. */
   grow?: boolean,
+  /** Extra CSS styles for the <div> */
   style?: React.CSSProperties
 }
 
+/** Horizontal row of child elements. */
 const HStack: React.FC<IHStack> = (props) => {
   const { space, alignItems, grow, justifyContent, className, ...filteredProps } = props;
 
diff --git a/app/soapbox/components/ui/icon-button/icon-button.tsx b/app/soapbox/components/ui/icon-button/icon-button.tsx
index 319fa8847..f74f2ca04 100644
--- a/app/soapbox/components/ui/icon-button/icon-button.tsx
+++ b/app/soapbox/components/ui/icon-button/icon-button.tsx
@@ -5,12 +5,17 @@ import SvgIcon from '../icon/svg-icon';
 import Text from '../text/text';
 
 interface IIconButton extends React.ButtonHTMLAttributes<HTMLButtonElement> {
+  /** Class name for the <svg> icon. */
   iconClassName?: string,
+  /** URL to the svg icon. */
   src: string,
+  /** Text to display next ot the button. */
   text?: string,
+  /** Don't render a background behind the icon. */
   transparent?: boolean
 }
 
+/** A clickable icon. */
 const IconButton = React.forwardRef((props: IIconButton, ref: React.ForwardedRef<HTMLButtonElement>): JSX.Element => {
   const { src, className, iconClassName, text, transparent = false, ...filteredProps } = props;
 
diff --git a/app/soapbox/components/ui/icon/icon.tsx b/app/soapbox/components/ui/icon/icon.tsx
index 07b3ca831..50ea5afbe 100644
--- a/app/soapbox/components/ui/icon/icon.tsx
+++ b/app/soapbox/components/ui/icon/icon.tsx
@@ -4,16 +4,21 @@ import Counter from '../counter/counter';
 
 import SvgIcon from './svg-icon';
 
-
 interface IIcon extends Pick<React.SVGAttributes<SVGAElement>, 'strokeWidth'> {
+  /** Class name for the <svg> element. */
   className?: string,
+  /** Number to display a counter over the icon. */
   count?: number,
+  /** Tooltip text for the icon. */
   alt?: string,
+  /** URL to the svg icon. */
   src: string,
+  /** Width and height of the icon in pixels. */
   size?: number,
 }
 
-const Icon = ({ src, alt, count, size, ...filteredProps }: IIcon): JSX.Element => (
+/** Renders and SVG icon with optional counter. */
+const Icon: React.FC<IIcon> = ({ src, alt, count, size, ...filteredProps }): JSX.Element => (
   <div className='relative' data-testid='icon'>
     {count ? (
       <span className='absolute -top-2 -right-3'>
diff --git a/app/soapbox/components/ui/icon/svg-icon.tsx b/app/soapbox/components/ui/icon/svg-icon.tsx
index 84604150d..e5cd6d03f 100644
--- a/app/soapbox/components/ui/icon/svg-icon.tsx
+++ b/app/soapbox/components/ui/icon/svg-icon.tsx
@@ -2,9 +2,13 @@ import React from 'react';
 import InlineSVG from 'react-inlinesvg'; // eslint-disable-line no-restricted-imports
 
 interface ISvgIcon {
+  /** Class name for the <svg> */
   className?: string,
+  /** Tooltip text for the icon. */
   alt?: string,
+  /** URL to the svg file. */
   src: string,
+  /** Width and height of the icon in pixels. */
   size?: number,
 }
 
diff --git a/app/soapbox/components/ui/input/input.tsx b/app/soapbox/components/ui/input/input.tsx
index a5543c9e9..67c32c3b9 100644
--- a/app/soapbox/components/ui/input/input.tsx
+++ b/app/soapbox/components/ui/input/input.tsx
@@ -12,17 +12,27 @@ const messages = defineMessages({
 });
 
 interface IInput extends Pick<React.InputHTMLAttributes<HTMLInputElement>, 'maxLength' | 'onChange' | 'type' | 'autoComplete' | 'autoCorrect' | 'autoCapitalize' | 'required' | 'disabled'> {
+  /** Put the cursor into the input on mount. */
   autoFocus?: boolean,
+  /** The initial text in the input. */
   defaultValue?: string,
+  /** Extra class names for the <input> element. */
   className?: string,
+  /** URL to the svg icon. */
   icon?: string,
+  /** Internal input name. */
   name?: string,
+  /** Text to display before a value is entered. */
   placeholder?: string,
+  /** Text in the input. */
   value?: string,
+  /** Change event handler for the input. */
   onChange?: (event: React.ChangeEvent<HTMLInputElement>) => void,
+  /** HTML input type. */
   type: 'text' | 'email' | 'tel' | 'password',
 }
 
+/** Form input element. */
 const Input = React.forwardRef<HTMLInputElement, IInput>(
   (props, ref) => {
     const intl = useIntl();
diff --git a/app/soapbox/components/ui/layout/layout.tsx b/app/soapbox/components/ui/layout/layout.tsx
index 7c6401def..d01abbc1f 100644
--- a/app/soapbox/components/ui/layout/layout.tsx
+++ b/app/soapbox/components/ui/layout/layout.tsx
@@ -2,13 +2,14 @@ import classNames from 'classnames';
 import React from 'react';
 import StickyBox from 'react-sticky-box';
 
-interface LayoutType extends React.FC {
+interface LayoutComponent extends React.FC {
   Sidebar: React.FC,
   Main: React.FC<React.HTMLAttributes<HTMLDivElement>>,
   Aside: React.FC,
 }
 
-const Layout: LayoutType = ({ children }) => (
+/** Layout container, to hold Sidebar, Main, and Aside. */
+const Layout: LayoutComponent = ({ children }) => (
   <div className='sm:pt-4 relative'>
     <div className='max-w-3xl mx-auto sm:px-6 md:max-w-7xl md:px-8 md:grid md:grid-cols-12 md:gap-8'>
       {children}
@@ -16,6 +17,7 @@ const Layout: LayoutType = ({ children }) => (
   </div>
 );
 
+/** Left sidebar container in the UI. */
 const Sidebar: React.FC = ({ children }) => (
   <div className='hidden lg:block lg:col-span-3'>
     <StickyBox offsetTop={80} className='pb-4'>
@@ -24,6 +26,7 @@ const Sidebar: React.FC = ({ children }) => (
   </div>
 );
 
+/** Center column container in the UI. */
 const Main: React.FC<React.HTMLAttributes<HTMLDivElement>> = ({ children, className }) => (
   <main
     className={classNames({
@@ -34,6 +37,7 @@ const Main: React.FC<React.HTMLAttributes<HTMLDivElement>> = ({ children, classN
   </main>
 );
 
+/** Right sidebar container in the UI. */
 const Aside: React.FC = ({ children }) => (
   <aside className='hidden xl:block xl:col-span-3'>
     <StickyBox offsetTop={80} className='space-y-6 pb-12' >
diff --git a/app/soapbox/components/ui/menu/menu.tsx b/app/soapbox/components/ui/menu/menu.tsx
index 4d51717dc..b7d265e7f 100644
--- a/app/soapbox/components/ui/menu/menu.tsx
+++ b/app/soapbox/components/ui/menu/menu.tsx
@@ -13,10 +13,12 @@ import React from 'react';
 import './menu.css';
 
 interface IMenuList extends Omit<MenuPopoverProps, 'position'> {
+  /** Position of the dropdown menu. */
   position?: 'left' | 'right'
 }
 
-const MenuList = (props: IMenuList) => (
+/** Renders children as a dropdown menu. */
+const MenuList: React.FC<IMenuList> = (props) => (
   <MenuPopover position={props.position === 'left' ? positionDefault : positionRight}>
     <MenuItems
       onKeyDown={(event) => event.nativeEvent.stopImmediatePropagation()}
@@ -26,6 +28,7 @@ const MenuList = (props: IMenuList) => (
   </MenuPopover>
 );
 
+/** Divides menu items. */
 const MenuDivider = () => <hr />;
 
 export { Menu, MenuButton, MenuDivider, MenuItems, MenuItem, MenuList, MenuLink };
diff --git a/app/soapbox/components/ui/modal/modal.tsx b/app/soapbox/components/ui/modal/modal.tsx
index 4270465fc..29ca9578b 100644
--- a/app/soapbox/components/ui/modal/modal.tsx
+++ b/app/soapbox/components/ui/modal/modal.tsx
@@ -11,18 +11,29 @@ const messages = defineMessages({
 });
 
 interface IModal {
+  /** Callback when the modal is cancelled. */
   cancelAction?: () => void,
+  /** Cancel button text. */
   cancelText?: string,
+  /** Callback when the modal is confirmed. */
   confirmationAction?: () => void,
+  /** Whether the confirmation button is disabled. */
   confirmationDisabled?: boolean,
+  /** Confirmation button text. */
   confirmationText?: string,
+  /** Confirmation button theme. */
   confirmationTheme?: 'danger',
+  /** Callback when the modal is closed. */
   onClose?: () => void,
+  /** Callback when the secondary action is chosen. */
   secondaryAction?: () => void,
+  /** Secondary button text. */
   secondaryText?: string,
+  /** Title text for the modal. */
   title: string | React.ReactNode,
 }
 
+/** Displays a modal dialog box. */
 const Modal: React.FC<IModal> = ({
   cancelAction,
   cancelText,
diff --git a/app/soapbox/components/ui/select/select.tsx b/app/soapbox/components/ui/select/select.tsx
index 0781430ea..33a57c30e 100644
--- a/app/soapbox/components/ui/select/select.tsx
+++ b/app/soapbox/components/ui/select/select.tsx
@@ -1,5 +1,6 @@
 import * as React from 'react';
 
+/** Multiple-select dropdown. */
 const Select = React.forwardRef<HTMLSelectElement>((props, ref) => {
   const { children, ...filteredProps } = props;
 
diff --git a/app/soapbox/components/ui/spinner/spinner.tsx b/app/soapbox/components/ui/spinner/spinner.tsx
index d54e69439..c4b77a120 100644
--- a/app/soapbox/components/ui/spinner/spinner.tsx
+++ b/app/soapbox/components/ui/spinner/spinner.tsx
@@ -7,10 +7,13 @@ import Text from '../text/text';
 import './spinner.css';
 
 interface ILoadingIndicator {
+  /** Width and height of the spinner in pixels. */
   size?: number,
+  /** Whether to display "Loading..." beneath the spinner. */
   withText?: boolean
 }
 
+/** Spinning loading placeholder. */
 const LoadingIndicator = ({ size = 30, withText = true }: ILoadingIndicator) => (
   <Stack space={2} justifyContent='center' alignItems='center'>
     <div className='spinner' style={{ width: size, height: size }}>
diff --git a/app/soapbox/components/ui/stack/stack.tsx b/app/soapbox/components/ui/stack/stack.tsx
index 7e55ff5a2..3bb96d276 100644
--- a/app/soapbox/components/ui/stack/stack.tsx
+++ b/app/soapbox/components/ui/stack/stack.tsx
@@ -22,13 +22,18 @@ const alignItemsOptions = {
   center: 'items-center',
 };
 
-interface IStack extends React.HTMLAttributes<HTMLDivElement  > {
+interface IStack extends React.HTMLAttributes<HTMLDivElement> {
+  /** Size of the gap between elements. */
   space?: SIZES,
+  /** Horizontal alignment of children. */
   alignItems?: 'center',
+  /** Vertical alignment of children. */
   justifyContent?: 'center',
+  /** Extra class names on the <div> element. */
   className?: string,
 }
 
+/** Vertical stack of child elements. */
 const Stack: React.FC<IStack> = (props) => {
   const { space, alignItems, justifyContent, className, ...filteredProps } = props;
 
diff --git a/app/soapbox/components/ui/tabs/tabs.tsx b/app/soapbox/components/ui/tabs/tabs.tsx
index dbcbcbe33..ec8a9a09e 100644
--- a/app/soapbox/components/ui/tabs/tabs.tsx
+++ b/app/soapbox/components/ui/tabs/tabs.tsx
@@ -17,10 +17,13 @@ const HORIZONTAL_PADDING = 8;
 const AnimatedContext = React.createContext(null);
 
 interface IAnimatedInterface {
+  /** Callback when a tab is chosen. */
   onChange(index: number): void,
+  /** Default tab index. */
   defaultIndex: number
 }
 
+/** Tabs with a sliding active state. */
 const AnimatedTabs: React.FC<IAnimatedInterface> = ({ children, ...rest }) => {
   const [activeRect, setActiveRect] = React.useState(null);
   const ref = React.useRef();
@@ -58,13 +61,19 @@ const AnimatedTabs: React.FC<IAnimatedInterface> = ({ children, ...rest }) => {
 };
 
 interface IAnimatedTab {
+  /** ARIA role. */
   role: 'button',
+  /** Element to represent the tab. */
   as: 'a' | 'button',
+  /** Route to visit when the tab is chosen. */
   href?: string,
+  /** Tab title text. */
   title: string,
+  /** Index value of the tab. */
   index: number
 }
 
+/** A single animated tab. */
 const AnimatedTab: React.FC<IAnimatedTab> = ({ index, ...props }) => {
   // get the currently selected index from useTabsContext
   const { selectedIndex } = useTabsContext();
@@ -91,20 +100,32 @@ const AnimatedTab: React.FC<IAnimatedTab> = ({ index, ...props }) => {
   );
 };
 
+/** Structure to represent a tab. */
 type Item = {
+  /** Tab text. */
   text: React.ReactNode,
+  /** Tab tooltip text. */
   title?: string,
+  /** URL to visit when the tab is selected. */
   href?: string,
+  /** Route to visit when the tab is selected. */
   to?: string,
+  /** Callback when the tab is selected. */
   action?: () => void,
+  /** Display a counter over the tab. */
   count?: number,
+  /** Unique name for this tab. */
   name: string
 }
+
 interface ITabs {
+  /** Array of structured tab items. */
   items: Item[],
+  /** Name of the active tab item. */
   activeItem: string,
 }
 
+/** Animated tabs component. */
 const Tabs = ({ items, activeItem }: ITabs) => {
   const defaultIndex = items.findIndex(({ name }) => name === activeItem);
 
diff --git a/app/soapbox/components/ui/text/text.tsx b/app/soapbox/components/ui/text/text.tsx
index b2db90b2c..4b68f3c9c 100644
--- a/app/soapbox/components/ui/text/text.tsx
+++ b/app/soapbox/components/ui/text/text.tsx
@@ -60,19 +60,29 @@ const families = {
 };
 
 interface IText extends Pick<React.HTMLAttributes<HTMLParagraphElement>, 'dangerouslySetInnerHTML'> {
+  /** How to align the text. */
   align?: Alignments,
+  /** Extra class names for the outer element. */
   className?: string,
-  dateTime?: string,
+  /** Typeface of the text. */
   family?: Families,
+  /** Font size of the text. */
   size?: Sizes,
+  /** HTML element name of the outer element. */
   tag?: Tags,
+  /** Theme for the text. */
   theme?: Themes,
+  /** Letter-spacing of the text. */
   tracking?: TrackingSizes,
+  /** Transform (eg uppercase) for the text. */
   transform?: TransformProperties,
+  /** Whether to truncate the text if its container is too small. */
   truncate?: boolean,
+  /** Font weight of the text. */
   weight?: Weights
 }
 
+/** UI-friendly text container with dark mode support. */
 const Text: React.FC<IText> = React.forwardRef(
   (props: IText, ref: React.LegacyRef<any>) => {
     const {
diff --git a/app/soapbox/components/ui/textarea/textarea.tsx b/app/soapbox/components/ui/textarea/textarea.tsx
index b0b72573a..dc903eaf3 100644
--- a/app/soapbox/components/ui/textarea/textarea.tsx
+++ b/app/soapbox/components/ui/textarea/textarea.tsx
@@ -2,15 +2,23 @@ import classNames from 'classnames';
 import React from 'react';
 
 interface ITextarea extends Pick<React.TextareaHTMLAttributes<HTMLTextAreaElement>, 'maxLength' | 'onChange' | 'required'> {
+  /** Put the cursor into the input on mount. */
   autoFocus?: boolean,
+  /** The initial text in the input. */
   defaultValue?: string,
+  /** Internal input name. */
   name?: string,
+  /** Renders the textarea as a code editor. */
   isCodeEditor?: boolean,
+  /** Text to display before a value is entered. */
   placeholder?: string,
+  /** Text in the textarea. */
   value?: string,
+  /** Whether the device should autocomplete text in this textarea. */
   autoComplete?: string,
 }
 
+/** Textarea with custom styles. */
 const Textarea = React.forwardRef(
   ({ isCodeEditor = false, ...props }: ITextarea, ref: React.ForwardedRef<HTMLTextAreaElement>) => {
     return (
diff --git a/app/soapbox/components/ui/tooltip/tooltip.tsx b/app/soapbox/components/ui/tooltip/tooltip.tsx
index 8a52b6ca3..4efa4749f 100644
--- a/app/soapbox/components/ui/tooltip/tooltip.tsx
+++ b/app/soapbox/components/ui/tooltip/tooltip.tsx
@@ -4,9 +4,11 @@ import React from 'react';
 import './tooltip.css';
 
 interface ITooltip {
+  /** Text to display in the tooltip. */
   text: string,
 }
 
+/** Hoverable tooltip element. */
 const Tooltip: React.FC<ITooltip> = ({
   children,
   text,
diff --git a/app/soapbox/components/ui/widget/widget.tsx b/app/soapbox/components/ui/widget/widget.tsx
index 1257d9779..5a3b887df 100644
--- a/app/soapbox/components/ui/widget/widget.tsx
+++ b/app/soapbox/components/ui/widget/widget.tsx
@@ -5,24 +5,32 @@ import HStack from 'soapbox/components/ui/hstack/hstack';
 import Stack from 'soapbox/components/ui/stack/stack';
 
 interface IWidgetTitle {
-  title: string | React.ReactNode,
+  /** Title text for the widget. */
+  title: React.ReactNode,
 }
 
+/** Title of a widget. */
 const WidgetTitle = ({ title }: IWidgetTitle): JSX.Element => (
   <Text size='xl' weight='bold' tag='h1'>{title}</Text>
 );
 
+/** Body of a widget. */
 const WidgetBody: React.FC = ({ children }): JSX.Element => (
   <Stack space={3}>{children}</Stack>
 );
 
 interface IWidget {
-  title: string | React.ReactNode,
+  /** Widget title text. */
+  title: React.ReactNode,
+  /** Callback when the widget action is clicked. */
   onActionClick?: () => void,
+  /** URL to the svg icon for the widget action. */
   actionIcon?: string,
+  /** Text for the action. */
   actionTitle?: string,
 }
 
+/** Sidebar widget. */
 const Widget: React.FC<IWidget> = ({
   title,
   children,