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Proxelar vs Fiddler Classic: catalog facts
Proxelar	Fiddler Classic
Free Free and open source under the MIT licence.	Free Free for eligible non-commercial use; commercial use points to the paid Fiddler…
Windows, Command line	Windows
Handles HTTP, HTTPS and WebSocket traffic Replay and rewrite of requests, not just inspection	Captures and decrypts HTTPS traffic for inspection Lets you modify requests and responses
HTTPS interception requires trusting a local certificate Command-line focused rather than a full desktop GUI	Licensed only for eligible non-commercial use Windows only
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	License: Proprietary
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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