We make online political ads more transparent

…with tools for individuals, data for researchers and journalists, and advocacy for better policy from platforms, regulators and governments.

What we do

Browser Extension

Tracking ad trends


Understanding social media

Policy and analysis


Featured tools and projects

Our Browser Extension


  • Tracks the spending, messaging and targeting of 75,000+ political advertisers
  • Shows trends and leaderboards to monitor change over time
  • Dig down into presidential races, referendums and local campaigns
  • Try it out

Understanding social media

  • Allows researchers to run ecologically valid experimental studies with real content on real social media interfaces
  • Learn how users react to re-ranking, labelling, literacy interventions and exposure to different types of content
  • For quantitative and qualitative study
  • Learn more

Policy and analysis

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