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1200+ 款免费工具 · 每天上新

免费在线工具,让您的
日常任务更简单。

转换、生成、计算、格式化 — 数百款小巧、快速、注重隐私的工具,直接在您的浏览器中运行。无需安装,无需账户,完全免费。

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1200+ 款工具 · 6 个分类

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11 tools · 5 steps
Debug an API request

A request is failing and the error message isn't telling you why. These eleven tools take you from rebuilding the call by hand to reading the response, decoding the token and reproducing the whole thing — all in your browser, nothing uploaded.

14 tools · 4 steps
Work with PDF files

Fourteen tools covering the whole lifecycle — get things into a PDF, rearrange and clean up the pages, lock or unlock it, then get the content back out into Word, Excel, PowerPoint or images. All processed in your browser, so contracts and statements never leave your machine.

18 tools · curated set
Encoding & security toolkit

Eighteen tools for the things people mix up daily — encoding versus encryption, which hash belongs on a password, and what an HMAC is actually for. Everything runs in your browser, so nothing you paste is uploaded.

11 tools · curated set
Everyday productivity toolkit

Eleven tools for the two-minute tasks that break your focus — scheduling across time zones, sharing a link as a QR code, working out a date, splitting a bill, writing down something you'll need in ten minutes. No account, no app to install.

12 tools · 4 steps
Work with JSON data

You've been handed a blob of JSON — an API response, a config file, a sample payload — and you need to trust its shape. These twelve tools take you from making it readable, through finding what's actually inside it and giving it real types, to reshaping it into whatever comes next. Everything runs in your browser, so nothing you paste is uploaded.

6 tools · 3 steps
Build a QR code that scans

A QR code for a menu, a business card, a flyer or a product has to survive being branded and being printed small — two things that quietly break scanning. These six tools take you from getting the payload right, through adding a logo without exceeding the error-correction budget, to proving the finished code still reads at its real physical size.

9 tools · 4 steps
Get an image ready for the web

You have a raw image — a phone photo, a screenshot, a design export — and it isn't ready to ship: wrong format, far too heavy, carrying metadata that shouldn't be public, and served as one giant file to every device. These eight tools take it from that state to a responsive, privacy-clean asset, all in your browser.

13 tools · curated set
Clean up text before you publish

Thirteen tools for the mess in pasted text — line endings from the wrong OS, an unknown encoding, two versions you can't tell apart, inconsistent casing, and lengths that don't match where the text is going. Everything runs in your browser, so nothing you paste is uploaded.

Build Your Own ToolBetaBuilder plan

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Describe what you want in plain English and we'll generate a private tool for your account — no code required. Included with the Builder plan.

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小而精的工具

免费使用

每款基于浏览器的工具都完全免费,无付费墙。部分 AI 工具需要免费账户,通过 API 或 MCP 调用任意工具则始终消耗额度。

大多数工具无需注册

打开工具,几秒钟内即可开始使用。只有少数 AI 工具需要您先登录。

从设计上保护隐私

大多数工具直接在您的浏览器中运行。您的文件和文本永远不会离开您的设备。

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工具轻量、功能单一,专为即时给出结果而打造。

把收藏保存到 Kit

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把工具串成一条流程

让一个工具的输出直接流入下一个工具 — 打造可重复使用的流程,无需在多个标签页间来回复制粘贴。

适配您的工作方式

随处可用的每一款工具

通过 REST 调用工具,通过 MCP 连接 AI 智能体,或通过浏览器扩展保存为键盘快捷方式。

开发者 API

每款工具都有一个 REST 端点,配有自动生成的请求 / 响应模式 — 外加完整的 OpenAPI 3.1 规范。

POST /v1/tool/caesar-cipher
{ "inputText": "Hello", "shift": "13" }

{ "outputs": { "output": "Uryyb" } }

MCP 服务器

将每款工具连接到 Claude、AI 智能体以及兼容 MCP 的客户端 — 相同的逻辑,无需胶水代码。您的智能体会自行搜索目录,并在消耗额度前请求您的确认。

"mcpServers": {
  "iotools": { "type": "http", "url": "https://mcp.iotools.cloud/mcp" }
}
1200+ tools available to your agent
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只需一行 HTML,即可将任意工具添加到您的网站。完全响应式,自动适应容器大小,并始终保持最新。

<iframe
  src="https://iotools.cloud/embed/json-formatter/"
  width="100%" height="520"
></iframe>

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在任意标签页中搜索全部工具 — 无需先返回 iotools.cloud。

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自动化平台

不懂代码?没关系。

在 n8n、Zapier、Make 或您已经在使用的工作流平台中运行任意工具 — 相同的密钥,相同的额度,相同的目录。

n8n

n8n 集成

在 n8n 工作流中运行任意工具 — 一个社区节点,六种操作,由同一套 API 提供支持。

使用指南
Zapier

Zapier 集成

在一个 Zap 中运行任意工具 — 一个触发器,一个搜索,两个动作,由同一套 API 提供支持。

Make

Make 集成

在 Make 场景中运行任意工具 — 一个连接,六个模块,由同一套 API 提供支持。

只提供您需要的,不多添一分冗余。

收藏 iotools.cloud,把 1200+ 款实用工具保存在同一个标签页里。