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.

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.

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.

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.

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.
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.

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.

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