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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.

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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

Listen to EFF researcher @Maassive discuss newly signed California privacy laws on @kpbsmidday, live at 12:20pm PT

Oct 13 @ 11:46am

EFF is attending ICANN 54 to protect the interests of users. Our take on privacy and domain name registration:

Oct 13 @ 11:19am

Your voice can make a difference. Tell @POTUS to stand up for your right to security.

Oct 13 @ 11:03am
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