- RequestBin - https://requestbin.com/
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- Postman - https://www.postman.com/
- BurpSuite - https://portswigger.net/burp/communitydownload
- CyberChef - https://gchq.github.io/CyberChef/
- dCode cipher identifier - https://www.dcode.fr/cipher-identifier
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- Code Beautify - https://codebeautify.org/