Cognitive Biases, Heuristics & Fallacies

What it does

This is a ongoing project, creating curated, searchable list of (currently) 160 or so cognitive biases, heuristics and fallacies. It simplifies finding and understand how people's brains can go wrong, to help you conduct better research and analysis.

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  My Cognitive Bias2019 · ▲110

  A cognitive bias explained every time you open a new tab

• 
  Pocket Biases2019 · ▲251

  Every cognitive bias in your pocket.

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  Start Here: Web Development - The Cognitive Biases of the Brain & How to Pitch Yourself2016 · ▲67

  A Q&A where we point out biases in each question and the fix

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  Brainiac2021 · kickstartsidehustle.com · ▲646

  Database of 150 cognitive biases that control our decisions

• AS
  A Set of Dice That Follows the Gambler's Fallacy2017 · github.com · ▲523
• 
  Cognitive Biases2025 · metalhatscats.com · ▲10

  Cognitive Biases: Think better

• 
  Browzer▲432

  Put your technical content on autopilot

  Growth · 19d ago · trybrowzer.com

• 
  WorldMap.lol▲197

  Put your startup on the map. Literally.

  Growth · 19d ago · worldmap.lol

• RS
  Redbean – Single-file distributable web server▲1,998

  Life & fun · 2021 · justine.lol

• CT
  Can’t afford Bloomberg Terminal? No prob, I built the next best thing▲1,422

  Dev tools · 2021 · github.com

• 
  Ray.so▲1,064

  Create beautiful images of your code

  Dev tools · 2021 · ray.so

• 
  June 1.0▲851

  Instant analytics reports built on top of Segment

  Growth · 2021 · june.so

• 
  Contra▲798

  A new kind of professional network

  Commerce · 2021 · contra.com

• 
  Deep Nostalgia™▲767

  Animate your family photos

  AI · 2021 · myheritage.com