在線畫時序圖的網站：https://www.websequencediagrams.com/
該網站提供拖拉圖形和編寫腳本代碼2個方式來制作時序圖，同時提供多種顯示風格。
實例：
1、腳本代碼：
title Automated test data generation tool
parallel {
user->+tool: Open program
tool-->-user: Return login interface
user->+tool: Log in
tool->+DB: Connection request
DB-->-tool: Successful response
tool-->-user: Return the list of database tables
user->+tool: Select database tables
tool->+DB: Query request
DB-->-tool: Successful response
tool-->-user: Return data generation rule configuration interface
user-->+tool: Configuration rule and execution
tool-->+DB: Execution request
DB-->-tool:Successful response
tool-->-user: Return successful interface
}
2、自動生成的時序圖：
