Haketilo Documentation

This is the documentation of Haketilo, a tool that facilitates viewing of websites while having their original JavaScript replaced by user-provided scripts. Haketilo combines the functionalities of content blocker and user script manager. It can be used with its script repository, Hydrilla 🌿.

One of Haketilo's aims is to address the issues raised in "The JavaScript trap". It is being developed with hope that it will make more user-controlled "Web" browsing possible.

Haketilo exists as an HTTP proxy and a browser extension. The latest release of Haketilo proxy is version 3.0-beta1. It incorporates the popular mitmproxy tool and should work with any web browser that supports HTTPs proxies.

Haketilo browser extension is currently in maintenance mode and is not going to have new features added. Its latest release is version 2.0.1. WebExtension platforms supported by this version are Mozilla-based browsers (Firefox/IceCat 60 and newer) and (Ungoogled) Chromium (versions 90 and newer; older might also work but are untested).

Wiki sections


You might want to make an account to be able to contribute through this issue tracker. You can also e-mail koszko@koszko.org to express interest in participating.

For information about markup used by this documentation, see Markdown on RedMine.


This wiki is Copyright 2021, 2022 Wojtek Kosior and Jahoti. It is a free cultural work made available under:

You are free to choose which of the above licenses to use.

I, Wojtek Kosior, thereby promise not to sue for violation of this wiki's license. Although I request that you do not make use this wiki's contents in a proprietary work, I am not going to enforce this in court.


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This project was funded through the NGI0 Discovery Fund, a fund established by NLnet with financial support from the European Commission's Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement N° 825322.