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EFF's software development and technology research projects aim to improve the rights of free expression, security, and privacy on the internet.

  • HTTPS Everywhere is a Firefox extension that makes Firefox use HTTPS to the greatest extent possible
  • The SSL Observatory is a view of the state of HTTPS deployment in the IPv4 address space
  • Switzerland detects violations of network neutrality
  • Panopticlick shows how easy it is to uniquely identify browsers
  • Privacy Badger blocks spying ads and invisible trackers.
  • Write to your representatives with democracy.io

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NSA Spying

EFF is leading the fight against the NSA's illegal mass surveillance program. Learn more about what the program is, how it works, and what you can do.

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Depende de los legisladores el rechazo al #TPP https://www.eff.org/es/deepli...

Feb 5 @ 8:04pm

Laura Poitras and her EFF lawyers stand with previously classified surveillance docs now on display at the Whitney

Feb 5 @ 11:55am

Activists say Twitter is 'leaving them in the dark' over state-sponsored attack claims: http://www.theguardian.com/te...

Feb 5 @ 10:46am
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