diff --git a/frontend/src/App.css b/frontend/src/App.css
index 7043abd..ace719b 100644
--- a/frontend/src/App.css
+++ b/frontend/src/App.css
@@ -567,6 +567,47 @@
 .rule--pass .rule-icon { color: var(--green); }
 .rule--fail .rule-icon { color: #d1d5db; }
 
+/* ─── Password Toggle Button ────────────────────────────── */
+.password-input-wrapper {
+  position: relative;
+  width: 100%;
+}
+
+.password-input-wrapper .field-input {
+  padding-right: 42px; /* Ensure input text doesn't overlap the eye button */
+}
+
+.password-toggle-btn {
+  position: absolute;
+  right: 12px;
+  top: 50%;
+  transform: translateY(-50%);
+  background: none;
+  border: none;
+  padding: 4px;
+  cursor: pointer;
+  color: var(--text-muted);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transition: color 0.15s, opacity 0.15s;
+  border-radius: 4px;
+}
+
+.password-toggle-btn:hover:not(:disabled) {
+  color: var(--text);
+}
+
+.password-toggle-btn:focus-visible {
+  outline: 2px solid var(--green);
+  outline-offset: -2px;
+}
+
+.password-toggle-btn:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
 /* ─── Responsive ─────────────────────────────────────────── */
 @media (max-width: 600px) {
   .header        { padding: 20px 16px; }
diff --git a/frontend/src/pages/LoginPage.jsx b/frontend/src/pages/LoginPage.jsx
index e373db1..e62683c 100644
--- a/frontend/src/pages/LoginPage.jsx
+++ b/frontend/src/pages/LoginPage.jsx
@@ -7,6 +7,7 @@ const isValidEmail = (v) => /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(v.trim());
 export default function LoginPage() {
   const [email,    setEmail]    = useState('');
   const [password, setPassword] = useState('');
+  const [showPassword, setShowPassword] = useState(false);
   const [errors,   setErrors]   = useState({});
   const [apiError, setApiError] = useState('');
   const [loading,  setLoading]  = useState(false);
@@ -82,16 +83,39 @@ export default function LoginPage() {
 
           <div className="field-group">
             <label className="field-label" htmlFor="login-password">Password</label>
-            <input
-              id="login-password"
-              type="password"
-              className={`field-input ${errors.password ? 'field-input--err' : ''}`}
-              placeholder="Minimum 8 characters"
-              value={password}
-              onChange={(e) => { setPassword(e.target.value); clear('password'); }}
-              disabled={loading}
-              autoComplete="current-password"
-            />
+            <div className="password-input-wrapper">
+              <input
+                id="login-password"
+                type={showPassword ? 'text' : 'password'}
+                className={`field-input ${errors.password ? 'field-input--err' : ''}`}
+                placeholder="Minimum 8 characters"
+                value={password}
+                onChange={(e) => { setPassword(e.target.value); clear('password'); }}
+                disabled={loading}
+                autoComplete="current-password"
+              />
+              <button
+                type="button"
+                className="password-toggle-btn"
+                onClick={() => setShowPassword(!showPassword)}
+                disabled={loading}
+                aria-label={showPassword ? 'Hide password' : 'Show password'}
+              >
+                {showPassword ? (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M9.88 9.88a3 3 0 1 0 4.24 4.24"/>
+                    <path d="M10.73 5.08A10.43 10.43 0 0 1 12 5c7 0 10 7 10 7a13.16 13.16 0 0 1-1.67 2.68"/>
+                    <path d="M6.61 6.61A13.52 13.52 0 0 0 2 12s3 7 10 7a9.74 9.74 0 0 0 5.39-1.61"/>
+                    <line x1="2" y1="2" x2="22" y2="22"/>
+                  </svg>
+                ) : (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M2.062 12.348a1 1 0 0 1 0-.696 10.75 10.75 0 0 1 19.876 0 1 1 0 0 1 0 .696 10.75 10.75 0 0 1-19.876 0z"/>
+                    <circle cx="12" cy="12" r="3"/>
+                  </svg>
+                )}
+              </button>
+            </div>
             {errors.password && <p className="field-error">✗ {errors.password}</p>}
           </div>
 
diff --git a/frontend/src/pages/RegisterPage.jsx b/frontend/src/pages/RegisterPage.jsx
index aa4dd18..f2eea12 100644
--- a/frontend/src/pages/RegisterPage.jsx
+++ b/frontend/src/pages/RegisterPage.jsx
@@ -24,6 +24,8 @@ export default function RegisterPage() {
   const [email,    setEmail]    = useState('');
   const [password, setPassword] = useState('');
   const [confirm,  setConfirm]  = useState('');
+  const [showPassword, setShowPassword] = useState(false);
+  const [showConfirm, setShowConfirm] = useState(false);
   const [errors,   setErrors]   = useState({});
   const [apiError, setApiError] = useState('');
   const [loading,  setLoading]  = useState(false);
@@ -129,20 +131,43 @@ export default function RegisterPage() {
           {/* Password */}
           <div className="field-group">
             <label className="field-label" htmlFor="reg-password">Password</label>
-            <input
-              id="reg-password"
-              type="password"
-              className={`field-input ${errors.password ? 'field-input--err' : ''}`}
-              placeholder="Create a strong password"
-              value={password}
-              onChange={(e) => {
-                setPassword(e.target.value);
-                setTouched(p => ({ ...p, password: true }));
-                clear('password');
-              }}
-              disabled={loading}
-              autoComplete="new-password"
-            />
+            <div className="password-input-wrapper">
+              <input
+                id="reg-password"
+                type={showPassword ? 'text' : 'password'}
+                className={`field-input ${errors.password ? 'field-input--err' : ''}`}
+                placeholder="Create a strong password"
+                value={password}
+                onChange={(e) => {
+                  setPassword(e.target.value);
+                  setTouched(p => ({ ...p, password: true }));
+                  clear('password');
+                }}
+                disabled={loading}
+                autoComplete="new-password"
+              />
+              <button
+                type="button"
+                className="password-toggle-btn"
+                onClick={() => setShowPassword(!showPassword)}
+                disabled={loading}
+                aria-label={showPassword ? 'Hide password' : 'Show password'}
+              >
+                {showPassword ? (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M9.88 9.88a3 3 0 1 0 4.24 4.24"/>
+                    <path d="M10.73 5.08A10.43 10.43 0 0 1 12 5c7 0 10 7 10 7a13.16 13.16 0 0 1-1.67 2.68"/>
+                    <path d="M6.61 6.61A13.52 13.52 0 0 0 2 12s3 7 10 7a9.74 9.74 0 0 0 5.39-1.61"/>
+                    <line x1="2" y1="2" x2="22" y2="22"/>
+                  </svg>
+                ) : (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M2.062 12.348a1 1 0 0 1 0-.696 10.75 10.75 0 0 1 19.876 0 1 1 0 0 1 0 .696 10.75 10.75 0 0 1-19.876 0z"/>
+                    <circle cx="12" cy="12" r="3"/>
+                  </svg>
+                )}
+              </button>
+            </div>
             {errors.password && <p className="field-error">✗ {errors.password}</p>}
 
             {/* Strength bar — shown as soon as user starts typing */}
@@ -179,16 +204,39 @@ export default function RegisterPage() {
           {/* Confirm password */}
           <div className="field-group">
             <label className="field-label" htmlFor="reg-confirm">Confirm password</label>
-            <input
-              id="reg-confirm"
-              type="password"
-              className={`field-input ${errors.confirm ? 'field-input--err' : ''}`}
-              placeholder="Re-enter your password"
-              value={confirm}
-              onChange={(e) => { setConfirm(e.target.value); clear('confirm'); }}
-              disabled={loading}
-              autoComplete="new-password"
-            />
+            <div className="password-input-wrapper">
+              <input
+                id="reg-confirm"
+                type={showConfirm ? 'text' : 'password'}
+                className={`field-input ${errors.confirm ? 'field-input--err' : ''}`}
+                placeholder="Re-enter your password"
+                value={confirm}
+                onChange={(e) => { setConfirm(e.target.value); clear('confirm'); }}
+                disabled={loading}
+                autoComplete="new-password"
+              />
+              <button
+                type="button"
+                className="password-toggle-btn"
+                onClick={() => setShowConfirm(!showConfirm)}
+                disabled={loading}
+                aria-label={showConfirm ? 'Hide password' : 'Show password'}
+              >
+                {showConfirm ? (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M9.88 9.88a3 3 0 1 0 4.24 4.24"/>
+                    <path d="M10.73 5.08A10.43 10.43 0 0 1 12 5c7 0 10 7 10 7a13.16 13.16 0 0 1-1.67 2.68"/>
+                    <path d="M6.61 6.61A13.52 13.52 0 0 0 2 12s3 7 10 7a9.74 9.74 0 0 0 5.39-1.61"/>
+                    <line x1="2" y1="2" x2="22" y2="22"/>
+                  </svg>
+                ) : (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M2.062 12.348a1 1 0 0 1 0-.696 10.75 10.75 0 0 1 19.876 0 1 1 0 0 1 0 .696 10.75 10.75 0 0 1-19.876 0z"/>
+                    <circle cx="12" cy="12" r="3"/>
+                  </svg>
+                )}
+              </button>
+            </div>
             {errors.confirm && <p className="field-error">✗ {errors.confirm}</p>}
           </div>
 
diff --git a/todo-frontend/src/App.css b/todo-frontend/src/App.css
index 7043abd..ace719b 100644
--- a/todo-frontend/src/App.css
+++ b/todo-frontend/src/App.css
@@ -567,6 +567,47 @@
 .rule--pass .rule-icon { color: var(--green); }
 .rule--fail .rule-icon { color: #d1d5db; }
 
+/* ─── Password Toggle Button ────────────────────────────── */
+.password-input-wrapper {
+  position: relative;
+  width: 100%;
+}
+
+.password-input-wrapper .field-input {
+  padding-right: 42px; /* Ensure input text doesn't overlap the eye button */
+}
+
+.password-toggle-btn {
+  position: absolute;
+  right: 12px;
+  top: 50%;
+  transform: translateY(-50%);
+  background: none;
+  border: none;
+  padding: 4px;
+  cursor: pointer;
+  color: var(--text-muted);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  transition: color 0.15s, opacity 0.15s;
+  border-radius: 4px;
+}
+
+.password-toggle-btn:hover:not(:disabled) {
+  color: var(--text);
+}
+
+.password-toggle-btn:focus-visible {
+  outline: 2px solid var(--green);
+  outline-offset: -2px;
+}
+
+.password-toggle-btn:disabled {
+  opacity: 0.5;
+  cursor: not-allowed;
+}
+
 /* ─── Responsive ─────────────────────────────────────────── */
 @media (max-width: 600px) {
   .header        { padding: 20px 16px; }
diff --git a/todo-frontend/src/pages/LoginPage.jsx b/todo-frontend/src/pages/LoginPage.jsx
index ccbaf7b..921331b 100644
--- a/todo-frontend/src/pages/LoginPage.jsx
+++ b/todo-frontend/src/pages/LoginPage.jsx
@@ -7,6 +7,7 @@ const isValidEmail = (v) => /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(v.trim());
 export default function LoginPage() {
   const [email,    setEmail]    = useState('');
   const [password, setPassword] = useState('');
+  const [showPassword, setShowPassword] = useState(false);
   const [errors,   setErrors]   = useState({});
   const [apiError, setApiError] = useState('');
   const [loading,  setLoading]  = useState(false);
@@ -82,16 +83,39 @@ export default function LoginPage() {
 
           <div className="field-group">
             <label className="field-label" htmlFor="login-password">Password</label>
-            <input
-              id="login-password"
-              type="password"
-              className={`field-input ${errors.password ? 'field-input--err' : ''}`}
-              placeholder="Minimum 8 characters"
-              value={password}
-              onChange={(e) => { setPassword(e.target.value); clear('password'); }}
-              disabled={loading}
-              autoComplete="current-password"
-            />
+            <div className="password-input-wrapper">
+              <input
+                id="login-password"
+                type={showPassword ? 'text' : 'password'}
+                className={`field-input ${errors.password ? 'field-input--err' : ''}`}
+                placeholder="Minimum 8 characters"
+                value={password}
+                onChange={(e) => { setPassword(e.target.value); clear('password'); }}
+                disabled={loading}
+                autoComplete="current-password"
+              />
+              <button
+                type="button"
+                className="password-toggle-btn"
+                onClick={() => setShowPassword(!showPassword)}
+                disabled={loading}
+                aria-label={showPassword ? 'Hide password' : 'Show password'}
+              >
+                {showPassword ? (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M9.88 9.88a3 3 0 1 0 4.24 4.24"/>
+                    <path d="M10.73 5.08A10.43 10.43 0 0 1 12 5c7 0 10 7 10 7a13.16 13.16 0 0 1-1.67 2.68"/>
+                    <path d="M6.61 6.61A13.52 13.52 0 0 0 2 12s3 7 10 7a9.74 9.74 0 0 0 5.39-1.61"/>
+                    <line x1="2" y1="2" x2="22" y2="22"/>
+                  </svg>
+                ) : (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M2.062 12.348a1 1 0 0 1 0-.696 10.75 10.75 0 0 1 19.876 0 1 1 0 0 1 0 .696 10.75 10.75 0 0 1-19.876 0z"/>
+                    <circle cx="12" cy="12" r="3"/>
+                  </svg>
+                )}
+              </button>
+            </div>
             {errors.password && <p className="field-error">✗ {errors.password}</p>}
           </div>
 
diff --git a/todo-frontend/src/pages/RegisterPage.jsx b/todo-frontend/src/pages/RegisterPage.jsx
index ddb36df..1a59027 100644
--- a/todo-frontend/src/pages/RegisterPage.jsx
+++ b/todo-frontend/src/pages/RegisterPage.jsx
@@ -24,6 +24,8 @@ export default function RegisterPage() {
   const [email,    setEmail]    = useState('');
   const [password, setPassword] = useState('');
   const [confirm,  setConfirm]  = useState('');
+  const [showPassword, setShowPassword] = useState(false);
+  const [showConfirm, setShowConfirm] = useState(false);
   const [errors,   setErrors]   = useState({});
   const [apiError, setApiError] = useState('');
   const [loading,  setLoading]  = useState(false);
@@ -129,20 +131,43 @@ export default function RegisterPage() {
           {/* Password */}
           <div className="field-group">
             <label className="field-label" htmlFor="reg-password">Password</label>
-            <input
-              id="reg-password"
-              type="password"
-              className={`field-input ${errors.password ? 'field-input--err' : ''}`}
-              placeholder="Create a strong password"
-              value={password}
-              onChange={(e) => {
-                setPassword(e.target.value);
-                setTouched(p => ({ ...p, password: true }));
-                clear('password');
-              }}
-              disabled={loading}
-              autoComplete="new-password"
-            />
+            <div className="password-input-wrapper">
+              <input
+                id="reg-password"
+                type={showPassword ? 'text' : 'password'}
+                className={`field-input ${errors.password ? 'field-input--err' : ''}`}
+                placeholder="Create a strong password"
+                value={password}
+                onChange={(e) => {
+                  setPassword(e.target.value);
+                  setTouched(p => ({ ...p, password: true }));
+                  clear('password');
+                }}
+                disabled={loading}
+                autoComplete="new-password"
+              />
+              <button
+                type="button"
+                className="password-toggle-btn"
+                onClick={() => setShowPassword(!showPassword)}
+                disabled={loading}
+                aria-label={showPassword ? 'Hide password' : 'Show password'}
+              >
+                {showPassword ? (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M9.88 9.88a3 3 0 1 0 4.24 4.24"/>
+                    <path d="M10.73 5.08A10.43 10.43 0 0 1 12 5c7 0 10 7 10 7a13.16 13.16 0 0 1-1.67 2.68"/>
+                    <path d="M6.61 6.61A13.52 13.52 0 0 0 2 12s3 7 10 7a9.74 9.74 0 0 0 5.39-1.61"/>
+                    <line x1="2" y1="2" x2="22" y2="22"/>
+                  </svg>
+                ) : (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M2.062 12.348a1 1 0 0 1 0-.696 10.75 10.75 0 0 1 19.876 0 1 1 0 0 1 0 .696 10.75 10.75 0 0 1-19.876 0z"/>
+                    <circle cx="12" cy="12" r="3"/>
+                  </svg>
+                )}
+              </button>
+            </div>
             {errors.password && <p className="field-error">✗ {errors.password}</p>}
 
             {/* Strength bar — shown as soon as user starts typing */}
@@ -179,16 +204,39 @@ export default function RegisterPage() {
           {/* Confirm password */}
           <div className="field-group">
             <label className="field-label" htmlFor="reg-confirm">Confirm password</label>
-            <input
-              id="reg-confirm"
-              type="password"
-              className={`field-input ${errors.confirm ? 'field-input--err' : ''}`}
-              placeholder="Re-enter your password"
-              value={confirm}
-              onChange={(e) => { setConfirm(e.target.value); clear('confirm'); }}
-              disabled={loading}
-              autoComplete="new-password"
-            />
+            <div className="password-input-wrapper">
+              <input
+                id="reg-confirm"
+                type={showConfirm ? 'text' : 'password'}
+                className={`field-input ${errors.confirm ? 'field-input--err' : ''}`}
+                placeholder="Re-enter your password"
+                value={confirm}
+                onChange={(e) => { setConfirm(e.target.value); clear('confirm'); }}
+                disabled={loading}
+                autoComplete="new-password"
+              />
+              <button
+                type="button"
+                className="password-toggle-btn"
+                onClick={() => setShowConfirm(!showConfirm)}
+                disabled={loading}
+                aria-label={showConfirm ? 'Hide password' : 'Show password'}
+              >
+                {showConfirm ? (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M9.88 9.88a3 3 0 1 0 4.24 4.24"/>
+                    <path d="M10.73 5.08A10.43 10.43 0 0 1 12 5c7 0 10 7 10 7a13.16 13.16 0 0 1-1.67 2.68"/>
+                    <path d="M6.61 6.61A13.52 13.52 0 0 0 2 12s3 7 10 7a9.74 9.74 0 0 0 5.39-1.61"/>
+                    <line x1="2" y1="2" x2="22" y2="22"/>
+                  </svg>
+                ) : (
+                  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                    <path d="M2.062 12.348a1 1 0 0 1 0-.696 10.75 10.75 0 0 1 19.876 0 1 1 0 0 1 0 .696 10.75 10.75 0 0 1-19.876 0z"/>
+                    <circle cx="12" cy="12" r="3"/>
+                  </svg>
+                )}
+              </button>
+            </div>
             {errors.confirm && <p className="field-error">✗ {errors.confirm}</p>}
           </div>