Json compression escape tool, online Json compression and formatting

1. Implement online compression of Json strings. Compressing Json can reduce the traffic consumed during the transmission process and improve the transmission speed.

2. The Json compression and escape function is also very commonly used. Some Json has been escaped. You can use this tool to remove the escape and format the Json.

3. When formatting Json, make sure that Json has not been escaped before. The escaped Json will not be formatted. You need to remove the escape first.