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# Practical Toolbox

## Download Tools

- Sci-Hub: A revolutionary site aiming to break knowledge barriers, greeted by the goddess Elbakyan.
- Library Genesis: A website for downloading e-books.
- Z-library: An e-book download site (works better under Tor, link).
- Z-ePub: ePub e-book download site.
- PDF Drive: A PDF e-book search engine.
- MagazineLib: A site for downloading PDF e-magazines.
- BitDownloader: YouTube video downloader.
- qBittorrent: A BitTorrent client.
- uTorrent: Another BitTorrent client.
- National Standard Information Public Service Platform: Official platform for querying and downloading various standards.
- Standard Knowledge Service System: Search and read the standards you need.
- MSDN, I Tell You: A site for downloading Windows OS images and other software.

## Design Tools

- excalidraw: A hand-drawn style drawing tool, great for creating diagrams in course reports or PPTs.
- tldraw: A drawing tool suitable for flowcharts, architecture diagrams, etc.
- draw.io: A powerful and concise online drawing website, supports flowcharts, UML diagrams, architecture diagrams, prototypes, etc., with export options for Onedrive, Google Drive, Github, and offline client availability.
- origamiway: Step-by-step origami tutorials.
- thingiverse: Includes various 2D/3D design resources, with STL files ready for 3D printing.
- iconfont: The largest icon and illustration library in China, useful for development or drawing system architecture diagrams.
- turbosquid: A platform to purchase various models.
- flaticon: A site to download free and high-quality icons.
- Standard Map Service System: Official standard map downloads.
- PlantUML: Quickly write UML diagrams using code.

## Programming Related

- sqlfiddle: An easy-to-use online SQL Playground.
- sqlzoo: Practice SQL statements online.
- godbolt: A convenient compiler exploration tool. Write some C/C++ code, choose a compiler, and observe the specific assembly code generated.
- explainshell: Struggling with the meaning of a shell command? Try this site!
- regex101: A regex debugging site supporting various programming language standards.
- typingtom: Typing practice/speed test site for programmers.
- wrk: Website stress testing tool.
- gbmb: Data unit conversion tool.
- tools: A collection of online tools.
- github1s: Read GitHub code online with a web-based VS Code.
- visualgo: Algorithm visualization website.
- DataStructureVisual: Data structure visualization website.
- Data Structure Visualizations: Visualization website for data structures and algorithms.
- learngitbranching: Visualize learning git.
- UnicodeCharacter: Unicode character set website.
- cyrilex: A site for testing and visualizing regular expressions, supporting various programming language standards.
- mockium: Platform for generating test data.

## Learning Websites

- HFS: Various software tutorials.
- Shadertoy: Write various shaders.
- comments-for-awesome-courses: Reviews of open courses from prestigious universities.
- codetop: Corporate problem bank.
- cs-video-courses: List of computer science courses with video lectures.
- bootlin: Read Linux source code online.
- ecust-CourseShare: East China Normal University graduate course strategy sharing project.
- REKCARC-TSC-UHT: Tsinghua University computer science course strategy.
- seu-master: Southeast University graduate course materials.
- Runoob: Brief tutorials on computer-related knowledge.
- FreeBSD From Entry to Run Away: A Chinese tutorial on FreeBSD.
- MDN Web Docs: MDN's beginner's guide to web development.
- Hello Algorithm: A quick introductory tutorial on data structures and algorithms with animations, runnable examples, and Q&A.

## Encyclopedic/Dictionarial Websites

- os-wiki: An encyclopedia of operating system technology resources.
- FreeBSD Documentation: Official FreeBSD documentation.
- Python3 Documentation: Official Chinese documentation for Python3.
- C++ Reference: C++ reference manual.
- OI Wiki: An integrated site for programming competition knowledge.
- CTF Wiki: An integrated site for knowledge and tools related to cybersecurity competitions.
- Microsoft Learn: Microsoft's official learning platform, containing most Microsoft product documentation.
- Arch Wiki: Wiki written for Arch Linux, containing a lot of Linux-related knowledge.
- Qt Wiki: Official Qt Wiki.
- OpenCV Chinese Documentation: Community version of OpenCV's Chinese documentation.
- npm Docs: Official npm documentation.
- developer-roadmap: provides roadmaps, guides and other educational content to help guide developers in picking up a path and guide their learnings.

## Communication Platforms

- GitHub: Many open-source projects' hosting platform, also a major communication platform for many open-source projects, where issues can solve many problems.
- StackExchange: A programming community composed of 181 Q&A communities (including Stack Overflow).
- StackOverflow: An IT technical Q&A site related to programming.
- Gitee: A code hosting platform similar to GitHub, where you can find solutions to common questions in the issues of corresponding projects.
- Zhihu: A Q&A community similar to Quora, where you can ask questions, with some answers containing computer knowledge.
- Cnblogs: A knowledge-sharing community for developers, containing blogs on common questions. Accuracy is not guaranteed, please use with caution.
- CSDN: Contains blogs on common questions. Accuracy is not guaranteed, please use with caution.

## Miscellaneous

- tophub: A collection of trending news headlines (aggregating from Zhihu, Weibo, Baidu, WeChat, etc.).
- feedly: A famous RSS feed reader.
- speedtest: An online network speed testing website.
- public-apis: A collective list of free APIs for development.
- numberempire: A tool for calculating derivatives of functions.
- sustech-application: Southern University of Science and Technology experience sharing website.
- vim-adventures: An online game based on vim keyboard shortcuts.
- vimsnake: Play the snake game using vim commands.
- keybr: A website for learning touch typing.
- Awesome C++: A curated list of awesome C/C++ frameworks, libraries, resources.
- HelloGitHub: Shares interesting and beginner-friendly open-source projects on GitHub.
- Synergy: A set of keyboard and mouse controls for multiple computers

2026-01-21