Scan the web. Find your next build.
扫描网络，发现你的下一个作品。
IdeaRadar is a Chrome extension that automatically scans demand signals from websites like Reddit, Hacker News, Product Hunt, Xiaohongshu, Jike, and more — then uses AI to help you identify the most worthwhile side projects to build.
- Auto-capture — Browse supported sites, signals collect automatically in the background
- Custom Sources — Add ANY website with CSS selector support for precise extraction
- Twitter / X Deep Monitor — Track keywords, hashtags, and specific users
- Multi-AI Support — OpenAI, DeepSeek, Gemini, Anthropic, Doubao, Grok
- AI Analysis — Auto-evaluate opportunity, difficulty, signal strength, and digging worth
- Side Panel — Filter, search, and export all signals in one place
- Daily Reminders — Never miss a scanning session
- One-Click Export — JSON export with full analysis data
- Bilingual UI — English & Chinese (简体中文)
- Privacy First — All data stays in your browser, no server, no tracking
| Type | Platforms |
|---|---|
| 🔴 Demand | Reddit (r/SideProject, r/somebodymakethis), Hacker News Ask, X/Twitter, Xiaohongshu, Jike |
| 🔵 Trend | Product Hunt daily, GitHub Trending, Exploding Topics |
| 🟡 Opportunity | Indie Hackers, Starter Story |
| ➕ Custom | Any website you configure |
- Download or clone this repo
- Open Chrome →
chrome://extensions/ - Enable Developer mode (toggle top-right)
- Click Load unpacked → select the project folder
- The radar icon appears in your toolbar
- Click the radar icon → Settings
- Select your AI provider and enter your API key
- All AI calls go directly from your browser to the provider — we never see your key or data
Screenshots coming soon. Feel free to submit a PR!
IdeaRadar 是一个 Chrome 浏览器扩展，自动扫描 Reddit、Hacker News、Product Hunt、小红书、即刻等平台的需求信号，并用 AI 帮你判断哪些 side project 最值得做。
- 自动捕获 — 浏览支持的平台时，信号在后台自动收集
- 自定义信号源 — 添加任意网站，支持 CSS 选择器精确提取
- Twitter / X 深度监控 — 追踪关键词、标签和特定用户
- 多 AI 支持 — OpenAI、DeepSeek、Gemini、Anthropic、豆包、Grok
- AI 智能分析 — 自动评估机会、难度、信号强度和深挖价值
- 侧边面板 — 过滤、搜索、导出，一站式管理
- 每日提醒 — 不错过任何扫描时机
- 一键导出 — JSON 格式导出所有信号和分析结果
- 中英双语 — 界面支持简体中文和英文切换
- 隐私优先 — 所有数据仅存在本地浏览器，无服务端，无追踪
| 类型 | 平台 |
|---|---|
| 🔴 需求信号 | Reddit (r/SideProject, r/somebodymakethis)、Hacker News Ask、X/Twitter、小红书、即刻 |
| 🔵 趋势信号 | Product Hunt 日榜、GitHub Trending、Exploding Topics |
| 🟡 机会信号 | Indie Hackers、Starter Story |
| ➕ 自定义 | 你配置的任何网站 |
- 下载或 clone 本仓库
- 打开 Chrome →
chrome://extensions/ - 右上角开启开发者模式
- 点击加载已解压的扩展程序 → 选择项目文件夹
- 工具栏出现雷达图标即安装成功
- 点击雷达图标 → 设置
- 选择 AI 提供商并填入你的 API Key
- 所有 AI 调用直接从你的浏览器发往提供商 — 我们不接触你的密钥和数据
截图待补充。欢迎提交 PR！
IdeaRadar/
├── manifest.json # MV3 config
├── background.js # Service worker: AI adapter, storage, alarms
├── popup.html / popup.js # Quick stats & actions
├── sidepanel.html / .js # Main signal browser & AI analysis
├── options.html / .js # Settings: AI, sources, general
├── lib/i18n.js # Bilingual engine (inline, zero-dependency)
├── content/ # Platform-specific scanners
│ ├── common.js # Shared utilities
│ ├── reddit.js
│ ├── hackernews.js
│ ├── producthunt.js
│ ├── github.js
│ ├── x-twitter.js
│ ├── xiaohongshu.js # 小红书 SPA support
│ ├── jike.js # 即刻 SPA support
│ └── universal.js # Custom source scanner (<all_urls>)
├── _locales/ # Chrome i18n manifest strings
└── icons/ # Brand icons
- Pure vanilla JS, no build step, no framework
- ~3,300 LOC total
- Zero backend — all data in
chrome.storage.local - Bring-your-own API key — AI calls go directly to your chosen provider
See PRIVACY.md.
TL;DR: We do NOT collect any data. Everything stays in your browser.
Inspired by the AGI Hunt article 《找到那件最值得做的事》 — the idea that the best side projects come from scanning real demand signals across the internet.
MIT License — see LICENSE.
Issues and PRs welcome! Ideas for contribution:
- Add support for more platforms
- Improve AI analysis prompts
- Better UI/UX for the side panel
- Real screenshots for the README