Is the ELI5 tool free?

Yes — get simple explanations for free on this page.

"Explain Like I’m Five" — explaining a complex topic in the simplest possible terms, usually with an everyday analogy instead of jargon.

What topics can it explain?

Anything — quantum physics, mortgages, blockchain, photosynthesis, the electoral system. If it can be understood, it can be simplified.

Is the simple version still accurate?

It trades precision for graspability — the honest simplification that gives you the right mental model. For expert-level nuance, ask follow-ups that add detail back.

FreeNo sign-up needed

Explain Like I'm Five

Explain a complex or obscure topic in the simplest of terms

Example

Dion Lee's inspiration comes from a variety of sources, including art, architecture, and culture. He is especially inspired by the culture and artwork of Aboriginal Australians. He often takes concepts from these sources and reimagines them through his own creative expression. For example, he has taken elements from Aboriginal art and used them to create sculptural silhouettes in his collections. He also draws inspiration from his own personal experiences.

A real result from this tool. Yours will be based on what you type.

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Supports 40+ languages
Runs on leading AI models
3.4M+ people have signed up

Trusted by teams at companies and universities like

How to use the Explain Like I'm Five

Try it now

01
Fill in a few details
Tell the tool what you need. Short answers work fine.
- Topic
02
Click Generate
Your result appears in seconds, right next to your inputs.
03
Copy, tweak, repeat
Copy what you like, or change your inputs and try again. Sign up free to save your results.

Who it’s for. And what they make with it.

Complex Topics, Simply
Get quantum computing, inflation or blockchain explained the way you’d explain it to a curious five-year-old.
Parents Fielding Questions
"Why is the sky blue?" answered at the right level, with the right analogy.
Teachers and Tutors
Find the simple analogy that makes a hard concept click for struggling students.
Writers and Presenters
Test whether you truly understand something: can it survive the ELI5 treatment?

Explain Like I'm Five examples. Real results, made with this tool.

OUTPUT
User experience is how a person feels when using a product, such as a website or an app. It includes everything from how easy it is to use the product, to how pleasurable it is to use.

Questions, answered.

Something else on your mind? Ask our assistant, it replies in seconds.

Is the ELI5 tool free?
Yes — get simple explanations for free on this page.
What does ELI5 mean?
"Explain Like I’m Five" — explaining a complex topic in the simplest possible terms, usually with an everyday analogy instead of jargon.
What topics can it explain?
Anything — quantum physics, mortgages, blockchain, photosynthesis, the electoral system. If it can be understood, it can be simplified.
Is the simple version still accurate?
It trades precision for graspability — the honest simplification that gives you the right mental model. For expert-level nuance, ask follow-ups that add detail back.