diff --git a/src/router/modules/demo.ts b/src/router/modules/demo.ts
index cce6d68..cb16983 100644
--- a/src/router/modules/demo.ts
+++ b/src/router/modules/demo.ts
@@ -134,6 +134,10 @@ const titleArr = [
         key: 'deletdNodeModules',
         title: '删除 node_modules 文件夹非常耗时解决办法',
     },
+    {
+        key: 'base64Tool',
+        title: 'base64编码解码工具',
+    },
 ];
 
 // @/views/demo/**/*.vue
diff --git a/src/views/demo/base64Tool.vue b/src/views/demo/base64Tool.vue
new file mode 100644
index 0000000..d50a6d2
--- /dev/null
+++ b/src/views/demo/base64Tool.vue
@@ -0,0 +1,364 @@
+<template>
+    <div class="base64-tool">
+        <div class="container">
+            <el-card
+                class="tool-card"
+                :body-style="{ padding: '0' }"
+            >
+                <div class="card-header">
+                    <h1 class="title">Base64编码/解码工具</h1>
+                    <p class="subtitle">使用btoa和atob进行Base64编码和解码</p>
+                </div>
+
+                <div class="card-body">
+                    <el-form
+                        :model="form"
+                        label-width="auto"
+                    >
+                        <el-form-item label="输入内容">
+                            <el-input
+                                v-model="form.input"
+                                type="textarea"
+                                :rows="5"
+                                placeholder="请输入需要编码或解码的内容"
+                                resize="none"
+                                class="input-textarea"
+                            ></el-input>
+                        </el-form-item>
+
+                        <div class="action-buttons">
+                            <el-button
+                                type="primary"
+                                @click="encode"
+                                :icon="DocumentAdd"
+                                class="action-btn"
+                            >
+                                编码
+                            </el-button>
+                            <el-button
+                                type="success"
+                                @click="decode"
+                                :icon="Document"
+                                class="action-btn"
+                            >
+                                解码
+                            </el-button>
+                            <el-button
+                                @click="clearAll"
+                                :icon="Delete"
+                                class="action-btn"
+                            >
+                                清空
+                            </el-button>
+                        </div>
+                    </el-form>
+
+                    <div class="result-area">
+                        <div class="result-header">
+                            <h3 class="result-title">结果</h3>
+                            <el-button
+                                class="copy-btn"
+                                type="info"
+                                :icon="CopyDocument"
+                                @click="copyResult"
+                                :disabled="!form.result"
+                                size="small"
+                            >
+                                复制结果
+                            </el-button>
+                        </div>
+                        <div class="result-box">
+                            <pre v-if="form.result">{{ form.result }}</pre>
+                            <p
+                                v-else
+                                class="placeholder"
+                            >
+                                编码/解码结果将显示在这里...
+                            </p>
+                        </div>
+                    </div>
+                </div>
+            </el-card>
+        </div>
+    </div>
+</template>
+
+<script setup>
+import { ref, reactive } from 'vue';
+import { ElMessage, ElMessageBox } from 'element-plus';
+import { DocumentAdd, Document, Delete, CopyDocument } from '@element-plus/icons-vue';
+
+// 响应式数据
+const form = reactive({
+    input: '',
+    result: '',
+});
+
+// 编码函数
+const encode = () => {
+    if (!form.input.trim()) {
+        ElMessage.warning('请输入需要编码的内容');
+        return;
+    }
+
+    try {
+        // 使用btoa(encodeURIComponent())进行编码
+        form.result = btoa(encodeURIComponent(form.input));
+        ElMessage.success('编码成功');
+    } catch (error) {
+        ElMessage.error('编码失败: ' + error.message);
+    }
+};
+
+// 解码函数
+const decode = () => {
+    if (!form.input.trim()) {
+        ElMessage.warning('请输入需要解码的内容');
+        return;
+    }
+
+    try {
+        // 使用decodeURIComponent(atob())进行解码
+        form.result = decodeURIComponent(atob(form.input));
+        ElMessage.success('解码成功');
+    } catch (error) {
+        ElMessage.error('解码失败: ' + error.message);
+    }
+};
+
+// 清空函数
+const clearAll = async () => {
+    if (form.input || form.result) {
+        try {
+            await ElMessageBox.confirm('确定要清空所有内容吗？', '提示', {
+                confirmButtonText: '确定',
+                cancelButtonText: '取消',
+                type: 'warning',
+            });
+            form.input = '';
+            form.result = '';
+            ElMessage.info('已清空所有内容');
+        } catch {
+            // 用户取消清空
+        }
+    } else {
+        ElMessage.info('内容已经是空的');
+    }
+};
+
+// 复制结果函数
+const copyResult = async () => {
+    if (!form.result) {
+        ElMessage.warning('没有可复制的内容');
+        return;
+    }
+
+    try {
+        await navigator.clipboard.writeText(form.result);
+        ElMessage.success('已复制到剪贴板');
+    } catch (err) {
+        // 降级方案
+        const textArea = document.createElement('textarea');
+        textArea.value = form.result;
+        document.body.appendChild(textArea);
+        textArea.select();
+        try {
+            document.execCommand('copy');
+            ElMessage.success('已复制到剪贴板');
+        } catch {
+            ElMessage.error('复制失败，请手动复制');
+        }
+        document.body.removeChild(textArea);
+    }
+};
+</script>
+
+<style lang="scss" scoped>
+.base64-tool {
+    min-height: 100vh;
+    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
+    display: flex;
+    justify-content: center;
+    align-items: center;
+    padding: 20px;
+
+    .container {
+        width: 100%;
+        max-width: 800px;
+
+        .tool-card {
+            border-radius: 12px;
+            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
+            transition: all 0.3s ease;
+            overflow: hidden;
+
+            &:hover {
+                box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
+            }
+
+            .card-header {
+                background: linear-gradient(135deg, #3494e6 0%, #ec6ead 100%);
+                color: white;
+                padding: 24px 30px;
+                text-align: center;
+
+                .title {
+                    margin: 0 0 8px 0;
+                    font-size: 1.8rem;
+                    font-weight: 600;
+                }
+
+                .subtitle {
+                    margin: 0;
+                    opacity: 0.9;
+                    font-size: 0.95rem;
+                }
+            }
+
+            .card-body {
+                padding: 30px;
+
+                .input-textarea {
+                    :deep(.el-textarea__inner) {
+                        font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+                        line-height: 1.5;
+                    }
+                }
+
+                .action-buttons {
+                    display: flex;
+                    gap: 12px;
+                    margin-top: 20px;
+                    flex-wrap: wrap;
+
+                    .action-btn {
+                        flex: 1;
+                        min-width: 120px;
+                    }
+                }
+
+                .result-area {
+                    margin-top: 30px;
+                    border-top: 1px solid #eaeaea;
+                    padding-top: 20px;
+
+                    .result-header {
+                        display: flex;
+                        justify-content: space-between;
+                        align-items: center;
+                        margin-bottom: 12px;
+
+                        .result-title {
+                            margin: 0;
+                            color: #2c3e50;
+                            font-size: 1.2rem;
+                        }
+
+                        .copy-btn {
+                            display: flex;
+                            align-items: center;
+                            gap: 6px;
+                        }
+                    }
+
+                    .result-box {
+                        background-color: #f8f9fa;
+                        border-radius: 8px;
+                        padding: 16px;
+                        min-height: 120px;
+                        border: 1px solid #eaeaea;
+                        word-break: break-all;
+                        white-space: pre-wrap;
+                        font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
+                        line-height: 1.5;
+
+                        .placeholder {
+                            margin: 0;
+                            color: #7f8c8d;
+                            text-align: center;
+                            line-height: 120px;
+                        }
+
+                        pre {
+                            margin: 0;
+                            white-space: pre-wrap;
+                            word-wrap: break-word;
+                        }
+                    }
+                }
+            }
+        }
+
+        .footer {
+            text-align: center;
+            margin-top: 24px;
+            color: #7f8c8d;
+            font-size: 0.875rem;
+
+            p {
+                margin: 0;
+            }
+        }
+    }
+}
+
+// 移动端适配
+@media (max-width: 768px) {
+    .base64-tool {
+        padding: 16px;
+
+        .container {
+            .tool-card {
+                .card-header {
+                    padding: 20px 24px;
+
+                    .title {
+                        font-size: 1.5rem;
+                    }
+
+                    .subtitle {
+                        font-size: 0.9rem;
+                    }
+                }
+
+                .card-body {
+                    padding: 24px;
+
+                    .action-buttons {
+                        flex-direction: column;
+
+                        .action-btn {
+                            width: 100%;
+                        }
+                    }
+
+                    .result-area {
+                        .result-header {
+                            flex-direction: column;
+                            gap: 12px;
+                            align-items: flex-start;
+
+                            .copy-btn {
+                                align-self: flex-end;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+// 超小屏幕适配
+@media (max-width: 480px) {
+    .base64-tool {
+        .container {
+            .tool-card {
+                .card-body {
+                    padding: 20px;
+                }
+            }
+        }
+    }
+}
+</style>
diff --git a/src/views/tool/nav/index.vue b/src/views/tool/nav/index.vue
index ad283da..2a95ca9 100644
--- a/src/views/tool/nav/index.vue
+++ b/src/views/tool/nav/index.vue
@@ -57,7 +57,7 @@
 
 <script setup>
 import { ref, computed } from 'vue';
-import { Search, Warning, Sunny, Moon, FullScreen, Printer, Picture, Switch, Microphone } from '@element-plus/icons-vue';
+import { Search, Warning, Sunny, Moon, FullScreen, Printer, Picture, Switch, Microphone, Paperclip } from '@element-plus/icons-vue';
 
 // 主题状态
 const isDarkTheme = ref(false);
@@ -77,6 +77,7 @@ const navItems = ref([
     { icon: Picture, name: '图片标注', url: '/#/demo/tuiImageEditor' },
     { icon: Switch, name: 'SCSS转换', url: '/#/demo/scssLiveTranslate' },
     { icon: Microphone, name: '录音', url: '/demoHtml/minihtml.html' },
+    { icon: Paperclip, name: 'base64编码解码', url: '/#/demo/base64Tool' },
 ]);
 
 // 计算属性：过滤后的导航项