The following organizations are generally regarded as reputable fact-checking organizations focused on U.S. national news:

• Politifact
• Factcheck.org
• Washington Post Fact Checker
• Snopes
• Truth be Told
• NPR Fact-Check
• Lie Detector (Univision, Spanish language)
• Hoax Slayer

Respected specialty sites cover niche areas such as climate or celebrities. Here are a few examples:

• Climate Feedback
• SciCheck
• Quote Investigator

There are many fact-checking sites outside the U.S. Here is a small sample:

• FactsCan (Canada)
• TrudeauMetre (Canada)
• El Polígrafo (Mexico)
• The Hound (Mexico)
• Guardian Reality Check (UK)
• BBC Reality Check (UK)
• Channel 4 Fact Check (UK)
• Full Fact (UK)