diff --git a/docs/必学工具/tools.en.md b/docs/必学工具/tools.en.md
index 7fe62cf..a2bad83 100644
--- a/docs/必学工具/tools.en.md
+++ b/docs/必学工具/tools.en.md
@@ -45,6 +45,8 @@
 - [Data Structure Visualizations](https://www.cs.usfca.edu/~galles/visualization/Algorithms.html): Visualization website for data structures and algorithms.
 - [learngitbranching](https://learngitbranching.js.org/?locale=zh_CN): Visualize learning git.
 - [UnicodeCharacter](https://unicode-table.com/en/): Unicode character set website.
+- [cyrilex](https://extendsclass.com/regex-tester.html): A site for testing and visualizing regular expressions, supporting various programming language standards.
+- [mockium](https://softwium.com/mockium/): Platform for generating test data.
 
 ## Learning Websites
 
@@ -97,4 +99,4 @@
 - [vimsnake](https://vimsnake.com/): Play the snake game using vim commands.
 - [keybr](https://www.keybr.com/): A website for learning touch typing.
 - [Awesome C++](https://cpp.libhunt.com/): A curated list of awesome C/C++ frameworks, libraries, resources.
-- [HelloGitHub](https://hellogithub.com/): Shares interesting and beginner-friendly open-source projects on GitHub.
\ No newline at end of file
+- [HelloGitHub](https://hellogithub.com/): Shares interesting and beginner-friendly open-source projects on GitHub.
diff --git a/docs/必学工具/tools.md b/docs/必学工具/tools.md
index 19c84f5..e3fe4b6 100644
--- a/docs/必学工具/tools.md
+++ b/docs/必学工具/tools.md
@@ -45,6 +45,8 @@
 - [Data Structure Visualizations](https://www.cs.usfca.edu/~galles/visualization/Algorithms.html): 数据结构与算法的可视化网站。
 - [learngitbranching](https://learngitbranching.js.org/?locale=zh_CN): 可视化学习 git。
 - [UnicodeCharacter](https://unicode-table.com/en/): Unicode 字符集网站。
+- [cyrilex](https://extendsclass.com/regex-tester.html): 一个用于测试和可视化正则表达式的网站，支持各种编程语言标准。
+- [mockium](https://softwium.com/mockium/): 生成测试数据的平台。
 
 ## 学习网站