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Charles vs PacketProxy: catalog facts
Charles	PacketProxy
Paid Commercial software with licences sold on the official site.	Free Free and open source under the Apache 2.0 licence.
Windows, macOS, Linux	macOS
Shows full HTTP and HTTPS requests, responses and headers Works as a reverse proxy as well as a monitor	Intercepts protocols beyond HTTP Actively maintained, with recent commits
Paid licence required HTTPS inspection needs certificate setup on the client	No packaged releases on GitHub Requires a Java environment
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.