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Accesser vs GreenTunnel: catalog facts
Accesser	GreenTunnel
Free Free and open source under the GPL 3.0.	Free Free and open source under the MIT licence.
Windows	Windows, macOS, Linux, Command line
Restores access to sites blocked by SNI connection resets Editable rules file for choosing which sites it handles	Works around DPI-based website blocking Desktop app and command-line tool
Only addresses SNI RST blocking, not other forms of censorship Much of the documentation is in Chinese	Does not hide your IP address like a VPN or Tor Effectiveness depends on how a given ISP filters traffic
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: MIT
No account needed	No account needed
Not stated if it 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.