Free Cognitive Distortion Checker

Paste a negative or anxious thought. This tool flags which of the 10 CBT "thinking traps" you may be using — and suggests how to reframe each one.

100% free · no signup · saves to your browser
📖 New: How to Do a CBT Thought Record — complete step-by-step guide with worked example →

Write exactly what goes through your mind. Example: "I made one mistake on the report, I'm a complete failure, I'll never get promoted."

→ Open the full 7-step CBT Thought Record tool
Go deeper: a complete thought record with emotions, evidence for/against, and before/after intensity ratings. Also free.

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Note: This checker uses keyword-pattern matching to flag likely distortions. It's a self-reflection starting point, not a clinical diagnosis. If you're struggling, please consult a licensed therapist or a crisis line (988 in the US).

What are cognitive distortions?

Cognitive distortions are habitual, biased ways of thinking that cognitive behavioral therapy (CBT) identifies as patterns which fuel anxiety, depression, and low self-esteem. Psychologist David Burns popularized 10 of them in his book Feeling Good. Learning to spot them is the first step of CBT — the second is challenging and reframing them, which this tool helps you practice.

The 10 cognitive distortions

1. All-or-Nothing Thinking

You see things in black-and-white categories. If a situation falls short of perfect, you see it as a total failure. Keywords: "always", "never", "complete failure", "perfect".

2. Overgeneralization

You view a single negative event as a never-ending pattern. Keywords: "always", "never", "every time", "nobody", "everyone".

3. Mental Filter

You pick out a single negative detail and dwell on it exclusively, so your vision of reality becomes darkened. Often shows up as many negative words with no positives.

4. Disqualifying the Positive

You reject positive experiences by insisting they "don't count". Keywords: "doesn't count", "doesn't matter", "just lucky", "but".

5. Jumping to Conclusions (Mind Reading)

You arbitrarily conclude someone is reacting negatively without evidence. Keywords: "they think", "he thinks", "she thinks", "probably thinks".

6. Fortune Telling

You predict things will turn out badly. Keywords: "going to fail", "will go wrong", "never work", "disaster", "doomed".

7. Magnification / Catastrophizing

You exaggerate the importance of problems. Keywords: "terrible", "awful", "horrible", "disaster", "ruined", "end of the world".

8. Emotional Reasoning

You assume your emotions reflect objective reality: "I feel it, therefore it must be true." Keywords: "I feel... so I must", "I feel guilty so".

9. Should Statements

You try to motivate yourself with "shoulds" and "musts", creating guilt and pressure. Keywords: "should", "must", "have to", "ought to".

10. Labeling

You attach a negative label to yourself instead of describing the action. Keywords: "I'm a [failure/loser/idiot]", "he's a [jerk]".

11. Personalization

You blame yourself for events not entirely under your control. Keywords: "my fault", "because of me", "I caused".

How to use this checker

Frequently asked questions

Is this a diagnosis?

No. It's a pattern-matching helper for self-reflection. A therapist can help you interpret patterns in context.

Does it save my data anywhere?

Only in your browser's localStorage. No server, no account, no tracking of your thoughts.

How is this different from the thought record tool?

This is a quick "which trap is this?" check. The thought record is the full 7-step CBT exercise with emotions, evidence, and intensity ratings.

→ Printable CBT Thought Record Template
Print the classic 7-column worksheet, or fill it in online and save to browser.
→ CBT Exercises & Worksheets (Full List)
Browse all 10 CBT techniques with step-by-step instructions and when-to-use guidance.
CBT for Anxiety: Complete Guide
The 6 core CBT techniques for anxiety + a free interactive 5-4-3-2-1 grounding exercise.