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Various utility tools and convenience features
轻松合并、拆分和操作PDF文件
比较两个文本的差异
生成文件的MD5、SHA1、SHA256哈希值
字幕格式间转换（SRT、VTT、ASS）
Boost productivity with the Pomodoro Technique timer
用于会议计划的世界时钟和时区转换器