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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

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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.

Follow EFF

Celebrate the 4th by giving to EFF! We're fighting to stop mass surveillance in the US and worldwide. https://eff.org/EFF25

Jul 4 @ 5:36pm

A deep dive into XKEYSCORE, one of the NSA's creepiest spying tools: https://eff.org/r.c6hp

Jul 3 @ 3:12pm

Come to EFF HQ on July 8 for a book talk with author of "Geek Heresy: Rescuing Social Change from the Cult of Tech" https://eff.org/r.i3fv

Jul 2 @ 4:57pm
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