免费的跨平台下载工具，支持 BT 和断点续传，界面简洁无广告。
aria2 is a lightweight multi-protocol & multi-source command-line download utility. It supports HTTP/HTTPS, FTP, SFTP, BitTorrent and Metalink. aria2 can be manipulated via built-in JSON-RPC and XML-RPC interfaces.
- https://github.com/mayswind/AriaNg a modern web frontend making aria2 easier to use.
- https://github.com/agalwood/Motrix A full-featured download manager.
- https://github.com/imfile-io/imfile-desktop/ fork 自 Motrix ，解决了 Motrix 更新维护缓慢的问题
IINA 是由国人使用 Swift 开发的本地多媒体播放器，开源免费，界面简洁运行流畅，支持绝大部分常见音视频编码格式。IINA 支持画中画播放，自动搜索字幕和视频截图和预览。
FreeMind is a premier free mind-mapping software written in Java.
老牌开源免费的思维导图工具，其导图格式被很多第三方思维导图工具支持。
在状态栏显示进程上传下载速度
金融许可证
保险许可证
保险专业中介许可证
在线训练真题、(听力)、查词、单词本、练习进度、答案，一步搞定
无须打印，台式电脑、笔记本、平板电脑和手机都可以使用
历年考研英语
大学英语六级
历年英语专八
大学英语四级
Office, Windows etc.
Penc is yet another window manager app for macOS. Instead of complicated keyboard shortcuts, Penc is designed for trackpad usage.
Firefox uses a number of compressed files that can't be read without decompression. These tools will decompress files users commonly need to access for one reason or another.
UTM is a full featured system emulator and virtual machine host for iOS and macOS. It is based off of QEMU. In short, it allows you to run Windows, Linux, and more on your Mac, iPhone, and iPad.
UTM employs Apple's Hypervisor virtualization framework to run ARM64 operating systems on Apple Silicon at near native speeds. On Intel Macs, x86/x64 operating system can be virtualized. In addition, lower performance emulation is available to run x86/x64 on Apple Silicon as well as ARM64 on Intel.
Stay是一个开源的iOS Safari浏览器插件，主要功能：
广告拦截
阻止应用跳转
自动展开文本STEP file viewers
The following table lists available STEP geometry viewing applications. The intent of this list is only informational, to provide potential users with a guide to STEP viewing applications on the market.
工信部推出的官方服务，查看个人名下登记了多少张电话卡。
MacOS 应用，可以对系统播放的声音（比如浏览器、视频播放器、音乐播放器）进行语音识别，然后实时生成字幕。