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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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We're at #LISA16 this week! Come say hi at our member table in the expo hall Wednesday and Thursday. https://eff.org/event/eff-use...

Dec 6 @ 2:58pm

Ojos que no parpadean: El estado de la vigilancia en América Latina #IGF2016 https://www.eff.org/es/deepli...

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Librarians are among the first lines of defense when it comes to protecting privacy and freedom of expression. https://www.eff.org/deeplinks...

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