A dictionary that grows as you use it一本靠用长大的词典
Only the words you care about只收你在意的词

Hit any word, and AI writes a structured entry on the spot —遇到任何词,AI 现场写一条结构化词条 —— not a pile of links, but one piece of knowledge that's yours不是给你一堆链接,是给你一条属于你的知识。

⬇  Download for Windows⬇  下载 Windows 版 📱  Get it on mobile📱  手机安装
v0.1.0 · 3.96 MB · Windows 10 or later · Freev0.1.0 · 3.96 MB · Windows 10 及以上 · 免费
or just try it in your browser或者直接在浏览器里试用
It isn't a search engine. It's a dictionary that grows.它不是搜索引擎,是一本会长大的词典
A search engine is a stream — search a hundred times, and the hundred-and-first still starts from zero.搜索引擎是水流 —— 你搜一百次,第一百零一次还是从零开始。
Lexi is a reservoir — generate once, and that entry is yours for good.Lexi 是水库 —— 生成一次,这个词条就永久是你的。
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Write on sight遇词即写

No more sifting through ten pages yourself. AI fills a fixed template — definition, plain explanation, examples, when to use it — ready to go.不用翻十个网页自己提炼。AI 按固定模板生成「定义 / 通俗解释 / 案例 / 适用场景」,直接能用。

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Only your words只收你的词

A general dictionary covers what everyone needs. Lexi keeps the jargon of your industry, the acronyms your boss uses, the concepts in that article you just read.通用词典收大众需要知道的;Lexi 收你行业里的黑话、你老板说的缩写、你读到的那篇文章里的概念。

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Thicker every week越用越厚

Open it three months later and it's a map of what you learned. Export to Markdown or JSON — the data lives on your own machine.三个月后打开,它是你这段时间的知识地图。可以导出 Markdown / JSON,数据存在你自己电脑上。

📄 Paste an article📄 粘贴一篇文章AI picks out the terms worth keeping. Tick the ones you want and generate them in one batch.AI 自动找出里面值得收录的术语,你勾选后批量生成 —— 一次建一批。
🌐 Bilingual by design🌐 中英双版Generate in English, translate to Chinese in one click. Both versions are kept — switch any time.英文界面下生成的内容,一键翻译成中文;两个版本同时保留,随时切换。
See what it looks like看一眼它长什么样
Every entry follows the same structure: definition, plain explanation, examples, when to use it, commonly confused with — not an off-the-cuff AI reply.每条词条都是固定结构:定义、通俗解释、案例、适用场景、易混淆 —— 不是一段随便的 AI 输出
Lexi desktop interface
Download下载
Data stays on your machine — nothing is uploaded. Share one sync code between desktop and phone and they stay in step.数据存在本机,不上传服务器。电脑和手机共用一个「同步码」即可互通。
✓ Completely free✓ 完全免费 ✓ No sign-up✓ 无需注册 ✓ Data on your computer✓ 数据在你电脑上 ✓ Export Markdown / JSON✓ 可导出 Markdown / JSON
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Windows desktopWindows 桌面版

v0.1.0 · 3.96 MB · updated 2026-10-08v0.1.0 · 3.96 MB · 更新于 2026-10-08
⬇  Download installer⬇  下载安装包
Requires Windows 10 / 11 (64-bit)系统要求:Windows 10 / 11(64 位)
Stored in a local SQLite database, exportable any time数据保存在本机 SQLite 数据库,可随时导出
macOS in developmentmacOS 版本开发中

Phone / tablet手机 / 平板

No app store · scan and go无需应用商店 · 扫码即用
Scan to open the mobile version
  1. Scan the code, or open in your browser手机扫码,或浏览器打开 lexi.bimon.net/app
  2. Tap Share → Add to Home Screen点「分享 → 添加到主屏幕」
    On Android Chrome: menu → Install appAndroid Chrome 是「菜单 → 安装应用」
  3. Then open it from the home screen icon —之后从主屏幕图标打开,no address bar没有地址栏, just like a native app,和原生 App 一样
Already on desktop? Generate a已装桌面版?在设置里生成sync code同步码 in Settings, enter it on your phone, and both sides share one dictionary.,手机上输入同一个码,两边就是同一本词典。
Frequently asked常见问题
Does it cost anything?要钱吗?

It's free, with a daily free quota (roughly 100 entries). If you use it heavily, add your own API key in Settings and run on your own quota.免费。每天有一定的免费额度(约够建 100 条词条)。如果你用得多,可以在设置里填入自己的 API Key,走你自己的额度。

How is this different from ChatGPT?和 ChatGPT 有什么区别?

ChatGPT gives you an answer; close the tab and it's gone. Lexi turns the answer into a structured, searchable, exportable entry that syncs to your phone — an asset, not a conversation.ChatGPT 给你一次答案,关掉就没了。Lexi 把答案变成一条结构化、可检索、可导出、能同步到手机的词条 —— 它是资产,不是对话。

Where is my data?我的数据在哪?

In a SQLite database on your own computer. Only if you turn on sync does it upload, encrypted, to your own sync space.在你自己电脑上的 SQLite 数据库里。开启同步后,才会加密上传到你自己的同步空间。

Is there a Mac version?支持 Mac 吗?

Not yet — it's in progress. Mobile works today (add the web version to your home screen).暂不支持,在做。手机端现在就能用(网页版加到主屏幕)。

Do you collect my entries?会收录我的词条内容吗?

No. We don't read your entries and we don't analyse their content.不会。我们不读取你的词条内容,也不做任何内容分析。