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AI coding tools

Refraction

Refactor, document and test code

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Tags Freemium AI tools Developer tools AI coding AI code assistant AI code review

What Refraction is

Refraction is a code generation tool for developers. You paste a block of code, choose a language or framework, and it generates refactored code, documentation or unit tests.

The site states coverage across many languages.

What you can do with it

Refactor a pasted block
Generate documentation for it
Create unit tests
Compare alternative implementations

Who it is for

Developers working across languages
Learners studying refactored output
Teams speeding up routine code work

What to watch out for

Generated tests and refactors need review and execution before use
Pasting proprietary code into a hosted tool means sharing it; check the terms
Language coverage does not imply equal quality across all of them
Confirm current plan limits

Pros & cons

✓ What we like

Very broad language coverage
Three common tasks in one tool
Simple workflow

! What to watch out for

Output needs review
Proprietary code sharing to consider
Quality varies by language

FAQ

What does it do?

Refactors code, generates documentation and creates unit tests from a pasted block.

Which languages are supported?

The site lists a large number across mainstream and legacy languages.

Can output be used directly?

Run and review it first; generated tests and refactors can be wrong.

Last reviewed: 2026-09-17

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