My Apply
My Apply

OONI: Open Observatory of Network Interference


OONI Probe is free and open source software designed to measure internet censorship and other forms of network interference.

The Open Observatory of Network Interference (OONI) is a free software project that aims to empower decentralized efforts in increasing transparency of internet censorship around the world.

To this end, OONI:

Since 2012, millions of OONI measurements have been collected from thousands of networks in more than 200 countries, shedding light on multiple cases of internet censorship around the world.

As of 2019, OONI publishes network measurements from around the world within minutes on OONI Explorer and the OONI API. It is therefore now possible to track global censorship events in near real-time.

Over the years, OTF support enabled OONI to create and improve its censorship measurement tools, expand its global coverage of censorship events, provide timely evidence and promote rapid response to emergent censorship events. OTF support also enabled OONI to create a global censorship measurement community.

Get the word out

Current project status

Just an idea (Pre-alpha)
It exists! (Alpha/Beta)
It's basically done (Release)
People use it (Production)

Funding to date

2012 $300,000 12 months
Internet Freedom Fund
2013 $45,000 12 months
Internet Freedom Fund
2016 $300,000 15 months
Internet Freedom Fund
2017 $41,070 5 months
Community Lab
2017 $300,000 12 months
Internet Freedom Fund
2018 $300,000 12 months
Internet Freedom Fund

Total Funding: $1,286,070

Addressed problems

  • Restrictive Internet filtering by technical methods (IP blocking, DNS filtering, TCP RST, DPI, etc.)
  • Blocking, filtering, or modification of political, social, and/or religious content (including apps)
  • Localized or nationwide communications shut down or throttling (Blackouts)
  • Repressive surveillance or monitoring of communication


  • Deploying technology
  • Technology development


  • General public

Region(s) archive

  • Global

Technology attributes

  • Application deployment
  • Desktop client
  • Mobile application (clientside)
  • Web application

We wrote about it

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