| Charles | HTTP Debugger Pro | OPC HTTP Gateway | Fiddler | |
| 5.0.1.3 | 1.2 | 2.0.0.914 | 5.0.20242.10753 Clas | |
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| Trialware | Shareware | Shareware | Trialware | Licence |
| FREE | $49.95 | $50.00 | $6.00 | Price |
| 69.10 MB | 1.83 MB | 4.63 MB | 141.00 MB | File size |
| May 15, 2025 | Aug 30, 2007 | Sep 14, 2020 | Jan 20, 2026 | Update |
| 77 | 102 | 75 | 69 | Downloads |
| Windows 11, Windows 10 64 bit, Windows 8 64 bit, Windows 7 64 bit | Windows XP, Windows 2000, Windows 2003, Windows Tablet PC Edition 2005, Windows Media Center Edition 2005, Windows Vista, Windows Vista | Win2000, Windows XP, Windows 7 x32, Windows 7 x64, Windows 8, Windows 10, WinServer, WinOther, Windows Vista, Windows Vista x64 | Windows Server 2025, Windows 11, Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows 10 32/64 bit | OS |
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