diff --git a/src/components/tools/about.astro b/src/components/tools/about.astro
new file mode 100644
index 0000000..1490962
--- /dev/null
+++ b/src/components/tools/about.astro
@@ -0,0 +1,34 @@
+---
+import { Container } from '../container';
+
+interface Props {
+  text: string;
+}
+
+const { text } = Astro.props;
+---
+
+<div class="about">
+  <Container tight>
+    <h3 class="title">About This Tool</h3>
+    <p class="text">{text}</p>
+  </Container>
+</div>
+
+<style>
+  .about {
+    margin: 75px 0;
+  }
+
+  .title {
+    margin-bottom: 8px;
+    font-family: var(--font-heading);
+    font-size: var(--font-md);
+    font-weight: 600;
+  }
+
+  .text {
+    line-height: 1.6;
+    color: var(--color-foreground-subtle);
+  }
+</style>
diff --git a/src/components/tools/breathing/breathing.module.css b/src/components/tools/breathing/breathing.module.css
new file mode 100644
index 0000000..fdbd99d
--- /dev/null
+++ b/src/components/tools/breathing/breathing.module.css
@@ -0,0 +1 @@
+/* WIP */
diff --git a/src/components/tools/breathing/breathing.tsx b/src/components/tools/breathing/breathing.tsx
new file mode 100644
index 0000000..cc54de4
--- /dev/null
+++ b/src/components/tools/breathing/breathing.tsx
@@ -0,0 +1,10 @@
+import { Container } from '@/components/container';
+import { Exercise } from './exercise';
+
+export function BreathingExercises() {
+  return (
+    <Container tight>
+      <Exercise />
+    </Container>
+  );
+}
diff --git a/src/components/tools/breathing/exercise/exercise.module.css b/src/components/tools/breathing/exercise/exercise.module.css
new file mode 100644
index 0000000..05b9baa
--- /dev/null
+++ b/src/components/tools/breathing/exercise/exercise.module.css
@@ -0,0 +1,47 @@
+.exercise {
+  position: relative;
+  z-index: 1;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 75px 0;
+  margin-top: 12px;
+  background-color: var(--color-neutral-50);
+  border: 1px solid var(--color-neutral-200);
+  border-radius: 8px;
+
+  & .phase {
+    font-family: var(--font-display);
+    font-size: var(--font-lg);
+    font-weight: 600;
+  }
+
+  & .circle {
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    z-index: -1;
+    height: 55%;
+    aspect-ratio: 1 / 1;
+    background-image: radial-gradient(
+      var(--color-neutral-50),
+      var(--color-neutral-100)
+    );
+    border: 1px solid var(--color-neutral-200);
+    border-radius: 50%;
+    transform: translate(-50%, -50%);
+  }
+}
+
+.selectBox {
+  width: 100%;
+  min-width: 0;
+  height: 45px;
+  padding: 0 12px;
+  margin-top: 8px;
+  font-size: var(--font-sm);
+  color: var(--color-foreground);
+  background-color: var(--color-neutral-100);
+  border: 1px solid var(--color-neutral-200);
+  border-radius: 8px;
+}
diff --git a/src/components/tools/breathing/exercise/exercise.tsx b/src/components/tools/breathing/exercise/exercise.tsx
new file mode 100644
index 0000000..b3087ea
--- /dev/null
+++ b/src/components/tools/breathing/exercise/exercise.tsx
@@ -0,0 +1,122 @@
+import { useState, useEffect } from 'react';
+import { motion } from 'framer-motion';
+
+import styles from './exercise.module.css';
+
+type Exercise = 'Box Breathing' | 'Resonant Breathing' | '4-7-8 Breathing';
+type Phase = 'inhale' | 'exhale' | 'holdInhale' | 'holdExhale';
+
+export function Exercise() {
+  const [selectedExercise, setSelectedExercise] =
+    useState<Exercise>('4-7-8 Breathing');
+
+  const getAnimationPhases = (
+    exercise: Exercise,
+  ): Array<'inhale' | 'holdInhale' | 'exhale' | 'holdExhale'> => {
+    switch (exercise) {
+      case 'Box Breathing':
+        return ['inhale', 'holdInhale', 'exhale', 'holdExhale'];
+      case 'Resonant Breathing':
+        return ['inhale', 'exhale'];
+      case '4-7-8 Breathing':
+        return ['inhale', 'holdInhale', 'exhale'];
+      default:
+        return ['inhale', 'holdInhale', 'exhale', 'holdExhale'];
+    }
+  };
+
+  const getAnimationDurations = (exercise: Exercise) => {
+    switch (exercise) {
+      case 'Box Breathing':
+        return { exhale: 4, holdExhale: 4, holdInhale: 4, inhale: 4 };
+      case 'Resonant Breathing':
+        return { exhale: 5, inhale: 5 };
+      case '4-7-8 Breathing':
+        return { exhale: 8, holdInhale: 7, inhale: 4 };
+      default:
+        return { exhale: 4, holdExhale: 4, holdInhale: 4, inhale: 4 };
+    }
+  };
+
+  const getLabel = (phase: Phase) => {
+    switch (phase) {
+      case 'inhale':
+        return 'Inhale';
+      case 'exhale':
+        return 'Exhale';
+      default:
+        return 'Hold';
+    }
+  };
+
+  const [phase, setPhase] = useState<Phase>('inhale');
+  const [durations, setDurations] = useState(
+    getAnimationDurations(selectedExercise),
+  );
+
+  const animationVariants = {
+    exhale: {
+      transform: 'translate(-50%, -50%) scale(1)',
+      transition: { duration: durations.exhale },
+    },
+    holdExhale: {
+      transform: 'translate(-50%, -50%) scale(1)',
+      transition: { duration: durations.holdExhale || 4 },
+    },
+    holdInhale: {
+      transform: 'translate(-50%, -50%) scale(1.5)',
+      transition: { duration: durations.holdInhale || 4 },
+    },
+    inhale: {
+      transform: 'translate(-50%, -50%) scale(1.5)',
+      transition: { duration: durations.inhale },
+    },
+  };
+
+  useEffect(() => {
+    setDurations(getAnimationDurations(selectedExercise));
+  }, [selectedExercise]);
+
+  useEffect(() => {
+    const phases = getAnimationPhases(selectedExercise);
+
+    let phaseIndex = 0;
+
+    setPhase(phases[phaseIndex]);
+
+    const interval = setInterval(
+      () => {
+        phaseIndex = (phaseIndex + 1) % phases.length;
+
+        setPhase(phases[phaseIndex]);
+      },
+      (durations[phases[phaseIndex]] || 4) * 1000,
+    );
+
+    return () => clearInterval(interval);
+  }, [selectedExercise, durations]);
+
+  return (
+    <>
+      <div className={styles.exercise}>
+        <motion.div
+          animate={phase}
+          className={styles.circle}
+          key={selectedExercise}
+          variants={animationVariants}
+        />
+        <p className={styles.phase}>{getLabel(phase)}</p>
+      </div>
+
+      <select
+        className={styles.selectBox}
+        value={selectedExercise}
+        onChange={e => setSelectedExercise(e.target.value as Exercise)}
+      >
+        <option value="Box Breathing">Box Breathing</option>
+        <option value="Resonant Breathing">Resonant Breathing</option>
+        <option value="4-7-8 Breathing">4-7-8 Breathing</option>
+      </select>
+    </>
+  );
+}
diff --git a/src/components/tools/breathing/exercise/index.ts b/src/components/tools/breathing/exercise/index.ts
new file mode 100644
index 0000000..881062d
--- /dev/null
+++ b/src/components/tools/breathing/exercise/index.ts
@@ -0,0 +1 @@
+export { Exercise } from './exercise';
diff --git a/src/components/tools/breathing/index.ts b/src/components/tools/breathing/index.ts
new file mode 100644
index 0000000..dbd185a
--- /dev/null
+++ b/src/components/tools/breathing/index.ts
@@ -0,0 +1 @@
+export { BreathingExercises } from './breathing';
diff --git a/src/components/tools/generics/button/button.module.css b/src/components/tools/generics/button/button.module.css
new file mode 100644
index 0000000..a96e112
--- /dev/null
+++ b/src/components/tools/generics/button/button.module.css
@@ -0,0 +1,34 @@
+.button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 30px;
+  height: 30px;
+  font-size: var(--font-sm);
+  color: var(--color-foreground);
+  cursor: pointer;
+  background-color: var(--color-neutral-100);
+  border: 1px solid var(--color-neutral-200);
+  border-radius: 4px;
+  outline: none;
+  transition: 0.2s;
+
+  &:focus-visible {
+    outline: 2px solid var(--color-neutral-400);
+    outline-offset: 2px;
+  }
+
+  &:hover,
+  &:focus-visible {
+    background-color: var(--color-neutral-200);
+  }
+
+  &.smallIcon {
+    font-size: var(--font-xsm);
+  }
+
+  &:disabled {
+    cursor: not-allowed;
+    opacity: 0.4;
+  }
+}
diff --git a/src/components/tools/generics/button/button.tsx b/src/components/tools/generics/button/button.tsx
new file mode 100644
index 0000000..5828ad6
--- /dev/null
+++ b/src/components/tools/generics/button/button.tsx
@@ -0,0 +1,33 @@
+import { Tooltip } from '@/components/tooltip';
+
+import { cn } from '@/helpers/styles';
+
+import styles from './button.module.css';
+
+interface ButtonProps {
+  disabled?: boolean;
+  icon: React.ReactElement;
+  onClick: () => void;
+  smallIcon?: boolean;
+  tooltip: string;
+}
+
+export function Button({
+  disabled = false,
+  icon,
+  onClick,
+  smallIcon,
+  tooltip,
+}: ButtonProps) {
+  return (
+    <Tooltip content={tooltip} placement="bottom" showDelay={0}>
+      <button
+        className={cn(styles.button, smallIcon && styles.smallIcon)}
+        disabled={disabled}
+        onClick={onClick}
+      >
+        {icon}
+      </button>
+    </Tooltip>
+  );
+}
diff --git a/src/components/tools/generics/button/index.ts b/src/components/tools/generics/button/index.ts
new file mode 100644
index 0000000..a039b75
--- /dev/null
+++ b/src/components/tools/generics/button/index.ts
@@ -0,0 +1 @@
+export { Button } from './button';
diff --git a/src/components/tools/hero.astro b/src/components/tools/hero.astro
new file mode 100644
index 0000000..a502ae4
--- /dev/null
+++ b/src/components/tools/hero.astro
@@ -0,0 +1,114 @@
+---
+import { Container } from '../container';
+
+interface Props {
+  desc: string;
+  title: string;
+}
+
+const { desc, title } = Astro.props;
+---
+
+<div class="hero">
+  <Container>
+    <div class="wrapper">
+      <div class="pattern"></div>
+      <img
+        alt="Faded Moodist Logo"
+        aria-hidden="true"
+        class="logo"
+        height={45}
+        src="/logo.svg"
+        width={45}
+      />
+
+      <h2 class="title"><span>{title}</span></h2>
+      <h1 class="desc">{desc}</h1>
+
+      <p class="moodist">Part of <a href="/">Moodist</a></p>
+    </div>
+  </Container>
+</div>
+
+<style>
+  .hero {
+    text-align: center;
+
+    .wrapper {
+      position: relative;
+      padding: 120px 0 50px;
+
+      & .pattern {
+        position: absolute;
+        top: 0;
+        left: 0;
+        z-index: -1;
+        width: 100%;
+        height: 100%;
+        background-image: radial-gradient(
+          var(--color-neutral-500) 5%,
+          transparent 5%
+        );
+        background-position: top center;
+        background-size: 21px 21px;
+        opacity: 0.8;
+        mask-image: linear-gradient(#fff, transparent, transparent);
+      }
+    }
+
+    & .logo {
+      display: block;
+      width: 45px;
+      margin: 0 auto 16px;
+      animation-name: logo;
+      animation-duration: 30s;
+      animation-timing-function: linear;
+      animation-iteration-count: infinite;
+    }
+
+    & .title {
+      font-family: var(--font-display);
+      font-size: var(--font-lg);
+      font-weight: 600;
+      line-height: 1;
+
+      & span {
+        background: linear-gradient(
+          135deg,
+          var(--color-foreground),
+          var(--color-foreground-subtle)
+        );
+        background-clip: text;
+        -webkit-text-fill-color: transparent;
+      }
+    }
+
+    & .desc {
+      margin-top: 4px;
+      line-height: 1.6;
+      color: var(--color-foreground-subtle);
+    }
+
+    & .moodist {
+      margin-top: 12px;
+      font-size: var(--font-sm);
+      color: var(--color-foreground-subtle);
+
+      & a {
+        font-weight: 500;
+        color: var(--color-foreground);
+        text-decoration: none;
+      }
+    }
+  }
+
+  @keyframes logo {
+    0% {
+      transform: rotate(0);
+    }
+
+    100% {
+      transform: rotate(360deg);
+    }
+  }
+</style>
diff --git a/src/components/tools/notepad/button/button.module.css b/src/components/tools/notepad/button/button.module.css
new file mode 100644
index 0000000..4a4e756
--- /dev/null
+++ b/src/components/tools/notepad/button/button.module.css
@@ -0,0 +1,45 @@
+.button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 30px;
+  height: 30px;
+  font-size: var(--font-sm);
+  color: var(--color-foreground);
+  cursor: pointer;
+  background-color: var(--color-neutral-100);
+  border: 1px solid var(--color-neutral-200);
+  border-radius: 4px;
+  outline: none;
+  transition: 0.2s;
+  transition-property: border-color, color, background-color;
+
+  &:focus-visible {
+    outline: 2px solid var(--color-neutral-400);
+    outline-offset: 2px;
+  }
+
+  &.critical {
+    color: #f43f5e;
+    border-color: #f43f5e;
+
+    &:hover {
+      background-color: rgb(244 63 94 / 10%);
+    }
+  }
+
+  &.recommended {
+    font-size: var(--font-xsm);
+    color: #22c55e;
+    border-color: #22c55e;
+
+    &:hover {
+      background-color: rgb(34 197 94 / 10%);
+    }
+  }
+
+  &:hover,
+  &:focus-visible {
+    background-color: var(--color-neutral-200);
+  }
+}
diff --git a/src/components/tools/notepad/button/button.tsx b/src/components/tools/notepad/button/button.tsx
new file mode 100644
index 0000000..d3da910
--- /dev/null
+++ b/src/components/tools/notepad/button/button.tsx
@@ -0,0 +1,36 @@
+import { Tooltip } from '@/components/tooltip';
+
+import { cn } from '@/helpers/styles';
+
+import styles from './button.module.css';
+
+interface ButtonProps {
+  critical?: boolean;
+  icon: React.ReactElement;
+  onClick: () => void;
+  recommended?: boolean;
+  tooltip: string;
+}
+
+export function Button({
+  critical,
+  icon,
+  onClick,
+  recommended,
+  tooltip,
+}: ButtonProps) {
+  return (
+    <Tooltip content={tooltip} placement="bottom" showDelay={0}>
+      <button
+        className={cn(
+          styles.button,
+          critical && styles.critical,
+          recommended && styles.recommended,
+        )}
+        onClick={onClick}
+      >
+        {icon}
+      </button>
+    </Tooltip>
+  );
+}
diff --git a/src/components/tools/notepad/button/index.ts b/src/components/tools/notepad/button/index.ts
new file mode 100644
index 0000000..a039b75
--- /dev/null
+++ b/src/components/tools/notepad/button/index.ts
@@ -0,0 +1 @@
+export { Button } from './button';
diff --git a/src/components/tools/notepad/index.ts b/src/components/tools/notepad/index.ts
new file mode 100644
index 0000000..8a3fad5
--- /dev/null
+++ b/src/components/tools/notepad/index.ts
@@ -0,0 +1 @@
+export { Notepad } from './notepad';
diff --git a/src/components/tools/notepad/notepad.module.css b/src/components/tools/notepad/notepad.module.css
new file mode 100644
index 0000000..2dadc40
--- /dev/null
+++ b/src/components/tools/notepad/notepad.module.css
@@ -0,0 +1,44 @@
+.header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 8px;
+
+  & .label {
+    font-size: var(--font-sm);
+    font-weight: 500;
+    color: var(--color-foreground-subtle);
+  }
+
+  & .buttons {
+    display: flex;
+    column-gap: 4px;
+    align-items: center;
+  }
+}
+
+.textarea {
+  width: 100%;
+  height: 350px;
+  padding: 12px;
+  line-height: 1.6;
+  color: var(--color-foreground-subtle);
+  resize: none;
+  background-color: var(--color-neutral-50);
+  border: 1px solid var(--color-neutral-200);
+  border-radius: 4px;
+  outline: none;
+  scroll-padding-bottom: 12px;
+
+  &:focus-visible {
+    outline: 2px solid var(--color-neutral-400);
+    outline-offset: 2px;
+  }
+}
+
+.counter {
+  margin-top: 8px;
+  font-size: var(--font-xsm);
+  color: var(--color-foreground-subtle);
+  text-align: center;
+}
diff --git a/src/components/tools/notepad/notepad.tsx b/src/components/tools/notepad/notepad.tsx
new file mode 100644
index 0000000..921556f
--- /dev/null
+++ b/src/components/tools/notepad/notepad.tsx
@@ -0,0 +1,90 @@
+import { useRef, useEffect } from 'react';
+import { BiTrash } from 'react-icons/bi/index';
+import { LuCopy, LuDownload } from 'react-icons/lu/index';
+import { FaCheck } from 'react-icons/fa6/index';
+import { FaUndo } from 'react-icons/fa/index';
+
+import { Modal } from '@/components/modal';
+import { Button } from './button';
+
+import { useNoteStore } from '@/stores/note';
+import { useCopy } from '@/hooks/use-copy';
+import { download } from '@/helpers/download';
+
+import styles from './notepad.module.css';
+
+interface NotepadProps {
+  onClose: () => void;
+  show: boolean;
+}
+
+export function Notepad({ onClose, show }: NotepadProps) {
+  const textareaRef = useRef<HTMLTextAreaElement>(null);
+
+  const note = useNoteStore(state => state.note);
+  const history = useNoteStore(state => state.history);
+  const write = useNoteStore(state => state.write);
+  const words = useNoteStore(state => state.words());
+  const characters = useNoteStore(state => state.characters());
+  const clear = useNoteStore(state => state.clear);
+  const restore = useNoteStore(state => state.restore);
+
+  const { copy, copying } = useCopy();
+
+  useEffect(() => {
+    if (show && textareaRef.current) {
+      setTimeout(() => {
+        textareaRef.current?.focus();
+      }, 10);
+    }
+  }, [show]);
+
+  const handleKeyDown = (e: React.KeyboardEvent<HTMLTextAreaElement>) => {
+    e.stopPropagation();
+
+    if (e.key === 'Escape') onClose();
+  };
+
+  return (
+    <Modal show={show} wide onClose={onClose}>
+      <header className={styles.header}>
+        <h2 className={styles.label}>Your Note</h2>
+        <div className={styles.buttons}>
+          <Button
+            icon={copying ? <FaCheck /> : <LuCopy />}
+            tooltip="Copy Note"
+            onClick={() => copy(note)}
+          />
+          <Button
+            icon={<LuDownload />}
+            tooltip="Download Note"
+            onClick={() => download('Moodit Note.txt', note)}
+          />
+          <Button
+            critical={!history}
+            icon={history ? <FaUndo /> : <BiTrash />}
+            recommended={!!history}
+            tooltip={history ? 'Restore Note' : 'Clear Note'}
+            onClick={() => (history ? restore() : clear())}
+          />
+        </div>
+      </header>
+
+      <textarea
+        className={styles.textarea}
+        dir="auto"
+        placeholder="What is on your mind?"
+        ref={textareaRef}
+        spellCheck={false}
+        value={note}
+        onChange={e => write(e.target.value)}
+        onKeyDown={handleKeyDown}
+      />
+
+      <p className={styles.counter}>
+        {characters} character{characters !== 1 && 's'} • {words} word
+        {words !== 1 && 's'}
+      </p>
+    </Modal>
+  );
+}
diff --git a/src/components/tools/pomodoro/index.ts b/src/components/tools/pomodoro/index.ts
new file mode 100644
index 0000000..9b721ae
--- /dev/null
+++ b/src/components/tools/pomodoro/index.ts
@@ -0,0 +1 @@
+export { Pomodoro } from './pomodoro';
diff --git a/src/components/tools/pomodoro/pomodoro.module.css b/src/components/tools/pomodoro/pomodoro.module.css
new file mode 100644
index 0000000..33109cf
--- /dev/null
+++ b/src/components/tools/pomodoro/pomodoro.module.css
@@ -0,0 +1,36 @@
+.header {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 8px;
+
+  & .title {
+    font-size: var(--font-sm);
+    font-weight: 500;
+    color: var(--color-foreground-subtle);
+  }
+
+  & .buttons {
+    display: flex;
+    column-gap: 4px;
+    align-items: center;
+  }
+}
+
+.control {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-top: 8px;
+
+  & .completed {
+    font-size: var(--font-xsm);
+    color: var(--color-foreground-subtle);
+  }
+
+  & .buttons {
+    display: flex;
+    column-gap: 4px;
+    align-items: center;
+  }
+}
diff --git a/src/components/tools/pomodoro/pomodoro.tsx b/src/components/tools/pomodoro/pomodoro.tsx
new file mode 100644
index 0000000..3f612d6
--- /dev/null
+++ b/src/components/tools/pomodoro/pomodoro.tsx
@@ -0,0 +1,179 @@
+import { useState, useEffect, useRef, useMemo } from 'react';
+import { FaUndo, FaPlay, FaPause } from 'react-icons/fa/index';
+import { IoMdSettings } from 'react-icons/io/index';
+
+import { Modal } from '@/components/modal';
+import { Button } from '../generics/button';
+import { Timer } from '@/components/timer';
+import { Tabs } from './tabs';
+import { Setting } from './setting';
+
+import { useLocalStorage } from '@/hooks/use-local-storage';
+import { useSoundEffect } from '@/hooks/use-sound-effect';
+import { usePomodoroStore } from '@/stores/pomodoro';
+import { useCloseListener } from '@/hooks/use-close-listener';
+
+import styles from './pomodoro.module.css';
+
+interface PomodoroProps {
+  onClose: () => void;
+  open: () => void;
+  show: boolean;
+}
+
+export function Pomodoro({ onClose, open, show }: PomodoroProps) {
+  const [showSetting, setShowSetting] = useState(false);
+
+  const [selectedTab, setSelectedTab] = useState('pomodoro');
+
+  const running = usePomodoroStore(state => state.running);
+  const setRunning = usePomodoroStore(state => state.setRunning);
+
+  const [timer, setTimer] = useState(0);
+  const interval = useRef<ReturnType<typeof setInterval> | null>(null);
+
+  const alarm = useSoundEffect('/sounds/alarm.mp3');
+
+  const defaultTimes = useMemo(
+    () => ({
+      long: 15 * 60,
+      pomodoro: 25 * 60,
+      short: 5 * 60,
+    }),
+    [],
+  );
+
+  const [times, setTimes] = useLocalStorage<Record<string, number>>(
+    'moodist-pomodoro-setting',
+    defaultTimes,
+  );
+
+  const [completions, setCompletions] = useState<Record<string, number>>({
+    long: 0,
+    pomodoro: 0,
+    short: 0,
+  });
+
+  const tabs = useMemo(
+    () => [
+      { id: 'pomodoro', label: 'Pomodoro' },
+      { id: 'short', label: 'Break' },
+      { id: 'long', label: 'Long Break' },
+    ],
+    [],
+  );
+
+  useCloseListener(() => setShowSetting(false));
+
+  useEffect(() => {
+    if (running) {
+      if (interval.current) clearInterval(interval.current);
+
+      interval.current = setInterval(() => {
+        setTimer(prev => prev - 1);
+      }, 1000);
+    } else {
+      if (interval.current) clearInterval(interval.current);
+    }
+  }, [running]);
+
+  useEffect(() => {
+    if (timer <= 0 && running) {
+      if (interval.current) clearInterval(interval.current);
+
+      alarm.play();
+
+      setRunning(false);
+      setCompletions(prev => ({
+        ...prev,
+        [selectedTab]: prev[selectedTab] + 1,
+      }));
+    }
+  }, [timer, selectedTab, running, setRunning, alarm]);
+
+  useEffect(() => {
+    const time = times[selectedTab] || 10;
+
+    if (interval.current) clearInterval(interval.current);
+
+    setRunning(false);
+    setTimer(time);
+  }, [selectedTab, times, setRunning]);
+
+  const toggleRunning = () => {
+    if (running) setRunning(false);
+    else if (timer <= 0) {
+      const time = times[selectedTab] || 10;
+
+      setTimer(time);
+      setRunning(true);
+    } else setRunning(true);
+  };
+
+  const restart = () => {
+    if (interval.current) clearInterval(interval.current);
+
+    const time = times[selectedTab] || 10;
+
+    setRunning(false);
+    setTimer(time);
+  };
+
+  return (
+    <>
+      <Modal show={show} onClose={onClose}>
+        <header className={styles.header}>
+          <h2 className={styles.title}>Pomodoro Timer</h2>
+
+          <div className={styles.button}>
+            <Button
+              icon={<IoMdSettings />}
+              tooltip="Change Times"
+              onClick={() => {
+                onClose();
+                setShowSetting(true);
+              }}
+            />
+          </div>
+        </header>
+
+        <Tabs selectedTab={selectedTab} tabs={tabs} onSelect={setSelectedTab} />
+        <Timer timer={timer} />
+
+        <div className={styles.control}>
+          <p className={styles.completed}>
+            {completions[selectedTab] || 0} completed
+          </p>
+          <div className={styles.buttons}>
+            <Button
+              icon={<FaUndo />}
+              smallIcon
+              tooltip="Restart"
+              onClick={restart}
+            />
+            <Button
+              icon={running ? <FaPause /> : <FaPlay />}
+              smallIcon
+              tooltip={running ? 'Pause' : 'Start'}
+              onClick={toggleRunning}
+            />
+          </div>
+        </div>
+      </Modal>
+
+      <Setting
+        show={showSetting}
+        times={times}
+        onChange={times => {
+          setShowSetting(false);
+          setTimes(times);
+          open();
+        }}
+        onClose={() => {
+          setShowSetting(false);
+          open();
+        }}
+      />
+    </>
+  );
+}
diff --git a/src/components/tools/pomodoro/setting/index.ts b/src/components/tools/pomodoro/setting/index.ts
new file mode 100644
index 0000000..0394f8b
--- /dev/null
+++ b/src/components/tools/pomodoro/setting/index.ts
@@ -0,0 +1 @@
+export { Setting } from './setting';
diff --git a/src/components/tools/pomodoro/setting/setting.module.css b/src/components/tools/pomodoro/setting/setting.module.css
new file mode 100644
index 0000000..89583ef
--- /dev/null
+++ b/src/components/tools/pomodoro/setting/setting.module.css
@@ -0,0 +1,76 @@
+.title {
+  margin-bottom: 16px;
+  font-family: var(--font-heading);
+  font-size: var(--font-md);
+  font-weight: 600;
+}
+
+& .form {
+  display: flex;
+  flex-direction: column;
+
+  & .field {
+    display: flex;
+    flex-direction: column;
+    row-gap: 8px;
+    margin-bottom: 16px;
+
+    & .label {
+      font-size: var(--font-sm);
+      color: var(--color-foreground);
+
+      & span {
+        color: var(--color-foreground-subtle);
+      }
+    }
+
+    & .input {
+      display: block;
+      height: 40px;
+      padding: 0 8px;
+      color: var(--color-foreground);
+      background-color: var(--color-neutral-50);
+      border: 1px solid var(--color-neutral-200);
+      border-radius: 4px;
+      outline: none;
+
+      &:focus-visible {
+        outline: 2px solid var(--color-neutral-400);
+        outline-offset: 2px;
+      }
+    }
+  }
+
+  & .buttons {
+    display: flex;
+    column-gap: 8px;
+    align-items: center;
+    justify-content: flex-end;
+
+    & button {
+      display: flex;
+      align-items: center;
+      justify-content: center;
+      height: 40px;
+      padding: 0 16px;
+      font-size: var(--font-sm);
+      font-weight: 500;
+      color: var(--color-foreground);
+      cursor: pointer;
+      background-color: var(--color-neutral-200);
+      border: none;
+      border-radius: 4px;
+      outline: none;
+
+      &:focus-visible {
+        outline: 2px solid var(--color-neutral-400);
+        outline-offset: 2px;
+      }
+
+      &.primary {
+        color: var(--color-neutral-100);
+        background-color: var(--color-neutral-950);
+      }
+    }
+  }
+}
diff --git a/src/components/tools/pomodoro/setting/setting.tsx b/src/components/tools/pomodoro/setting/setting.tsx
new file mode 100644
index 0000000..8db1a93
--- /dev/null
+++ b/src/components/tools/pomodoro/setting/setting.tsx
@@ -0,0 +1,110 @@
+import { useEffect, useState } from 'react';
+
+import { Modal } from '@/components/modal';
+
+import styles from './setting.module.css';
+
+interface SettingProps {
+  onChange: (newTimes: Record<string, number>) => void;
+  onClose: () => void;
+  show: boolean;
+  times: Record<string, number>;
+}
+
+export function Setting({ onChange, onClose, show, times }: SettingProps) {
+  const [values, setValues] = useState<Record<string, number | string>>(times);
+
+  useEffect(() => {
+    if (show) setValues(times);
+  }, [times, show]);
+
+  const handleChange = (id: string) => (value: number | string) => {
+    setValues(prev => ({
+      ...prev,
+      [id]: typeof value === 'number' ? value * 60 : '',
+    }));
+  };
+
+  const handleSubmit = (e: React.FormEvent<HTMLFormElement>) => {
+    e.preventDefault();
+
+    const newValues: Record<string, number> = {};
+
+    Object.keys(values).forEach(name => {
+      newValues[name] =
+        typeof values[name] === 'number' ? values[name] : times[name];
+    });
+
+    onChange(newValues);
+  };
+
+  const handleCancel = (e: React.MouseEvent<HTMLButtonElement, MouseEvent>) => {
+    e.preventDefault();
+
+    onClose();
+  };
+
+  return (
+    <Modal lockBody={false} show={show} onClose={onClose}>
+      <h2 className={styles.title}>Change Times</h2>
+
+      <form className={styles.form} onSubmit={handleSubmit}>
+        <Field
+          id="pomodoro"
+          label="Pomodoro"
+          value={values.pomodoro}
+          onChange={handleChange('pomodoro')}
+        />
+        <Field
+          id="short"
+          label="Short Break"
+          value={values.short}
+          onChange={handleChange('short')}
+        />
+        <Field
+          id="long"
+          label="Long Break"
+          value={values.long}
+          onChange={handleChange('long')}
+        />
+
+        <div className={styles.buttons}>
+          <button type="button" onClick={handleCancel}>
+            Cancel
+          </button>
+          <button className={styles.primary} type="submit">
+            Save
+          </button>
+        </div>
+      </form>
+    </Modal>
+  );
+}
+
+interface FieldProps {
+  id: string;
+  label: string;
+  onChange: (value: number | string) => void;
+  value: number | string;
+}
+
+function Field({ id, label, onChange, value }: FieldProps) {
+  return (
+    <div className={styles.field}>
+      <label className={styles.label} htmlFor={id}>
+        {label} <span>(minutes)</span>
+      </label>
+      <input
+        className={styles.input}
+        max={120}
+        min={1}
+        required
+        type="number"
+        value={typeof value === 'number' ? value / 60 : ''}
+        onChange={e => {
+          onChange(e.target.value === '' ? '' : Number(e.target.value));
+        }}
+      />
+    </div>
+  );
+}
diff --git a/src/components/tools/pomodoro/tabs/index.ts b/src/components/tools/pomodoro/tabs/index.ts
new file mode 100644
index 0000000..81aabb7
--- /dev/null
+++ b/src/components/tools/pomodoro/tabs/index.ts
@@ -0,0 +1 @@
+export { Tabs } from './tabs';
diff --git a/src/components/tools/pomodoro/tabs/tabs.module.css b/src/components/tools/pomodoro/tabs/tabs.module.css
new file mode 100644
index 0000000..222164c
--- /dev/null
+++ b/src/components/tools/pomodoro/tabs/tabs.module.css
@@ -0,0 +1,43 @@
+.tabs {
+  display: flex;
+  column-gap: 4px;
+  align-items: center;
+  padding: 4px;
+  margin: 8px 0;
+  background-color: var(--color-neutral-50);
+  border: 1px solid var(--color-neutral-200);
+  border-radius: 8px;
+
+  & .tab {
+    display: flex;
+    flex-grow: 1;
+    align-items: center;
+    justify-content: center;
+    height: 45px;
+    font-size: var(--font-sm);
+    color: var(--color-foreground-subtle);
+    cursor: pointer;
+    background-color: transparent;
+    border: 1px solid transparent;
+    border-radius: 4px;
+    outline: none;
+    transition: 0.2s;
+
+    &:focus-visible {
+      outline: 2px solid var(--color-neutral-400);
+      outline-offset: 2px;
+    }
+
+    &.selected {
+      color: var(--color-foreground);
+      background-color: var(--color-neutral-200);
+      border-color: var(--color-neutral-300);
+    }
+
+    &:not(.selected):hover,
+    &:not(.selected):focus-visible {
+      color: var(--color-foreground);
+      background-color: var(--color-neutral-100);
+    }
+  }
+}
diff --git a/src/components/tools/pomodoro/tabs/tabs.tsx b/src/components/tools/pomodoro/tabs/tabs.tsx
new file mode 100644
index 0000000..728bc5e
--- /dev/null
+++ b/src/components/tools/pomodoro/tabs/tabs.tsx
@@ -0,0 +1,25 @@
+import { cn } from '@/helpers/styles';
+
+import styles from './tabs.module.css';
+
+interface TabsProps {
+  onSelect: (id: string) => void;
+  selectedTab: string;
+  tabs: Array<{ id: string; label: string }>;
+}
+
+export function Tabs({ onSelect, selectedTab, tabs }: TabsProps) {
+  return (
+    <div className={styles.tabs}>
+      {tabs.map(tab => (
+        <button
+          className={cn(styles.tab, selectedTab === tab.id && styles.selected)}
+          key={tab.id}
+          onClick={() => onSelect(tab.id)}
+        >
+          {tab.label}
+        </button>
+      ))}
+    </div>
+  );
+}
diff --git a/src/pages/tools/breathing-exercises.astro b/src/pages/tools/breathing-exercises.astro
new file mode 100644
index 0000000..9331e92
--- /dev/null
+++ b/src/pages/tools/breathing-exercises.astro
@@ -0,0 +1,24 @@
+---
+import Layout from '@/layouts/layout.astro';
+
+import Donate from '@/components/donate.astro';
+import Hero from '@/components/tools/hero.astro';
+import { BreathingExercises as Breathing } from '@/components/tools/breathing';
+import Footer from '@/components/footer.astro';
+import About from '@/components/tools/about.astro';
+import Source from '@/components/source.astro';
+---
+
+<Layout title="Breathing Exercises Tool — Moodist">
+  <Donate />
+  <Hero
+    desc="Simple breathing exercises to relax."
+    title="Breathing Exercises"
+  />
+  <Breathing client:load />
+  <About
+    text="Experience calm and focus with our simple breathing exercise tool. Designed to guide your breath, it helps reduce stress, enhance relaxation, and improve mindfulness in just a few minutes a day."
+  />
+  <Source />
+  <Footer />
+</Layout>