Format JSX code with consistent indentation, proper spacing, and React best practices. Transform messy component code into readable, maintainable JSX.
A JSX formatter fixes indentation, spacing, quote style, comma style, plus small layout choices across a React component.
Use this page as a JSX beautifier when a diff looks noisy, a review blocks on style, or a teammate pasted JSX from a chat.
This tool targets day to day React editing. It also works as a react formatter, a jsx code formatter, plus a react jsx formatter for mixed markup plus JavaScript.
If you search for jsx prettier behavior, this page aims for the same outcome: consistent output, fewer debates, faster reviews.
Formatting does not repair broken JSX. If your input has an unclosed tag, an invalid spread, or a missing brace, output will fail or look wrong.
Use the Validate button first when you suspect a typo. Fix the first error, then format again.
Most formatting problems come from uneven indentation, mixed quote styles, plus copy paste from different editors.
Here is a realistic example from a React button component. The input mixes quote styles, props alignment, plus inline conditional output.
export default function Btn({label, onClick, disabled}){return <button className={"btn "+(disabled? "is-disabled":"")} onClick={onClick} disabled={disabled}>{label}</button>}export default function Btn({ label, onClick, disabled }) {return (<button
className={'btn ' + (disabled ? 'is-disabled' : '')}
onClick={onClick}
disabled={disabled}
>{label}
</button>);}Notice what the JSX formatter did. It normalized indentation, broke a long tag into readable lines, plus made string quoting consistent.
Formatting works best when the toggles match the project style. Otherwise every save creates a new diff.
Most React repos use 2 spaces. Some codebases use 4. Tabs often cause mixed indentation in copied snippets.
Single quotes reduce escaping in JSX attribute strings. Double quotes match HTML conventions. Pick one style for the whole project.
Trailing commas help diffs in multi line objects, arrays, plus prop lists. They also reduce merge conflicts in busy files.
Some teams keep semicolons for clarity. Others drop them. Match ESLint rules to avoid a style war in PR review.
Parentheses around a single parameter avoid refactors later. For example, changing x => into (x, i) => stays consistent.
If you work across multiple code styles, keep this jsx beautifier open next to your editor. Use the settings panel to switch quickly.
Formatting is not a linter. It will not enforce hook rules, fix imports, or refactor logic.
It will not validate React runtime behavior. A formatted component can still throw at runtime due to missing props, invalid state, or bad side effects.
For bigger transforms, use a dedicated build pipeline. For example, the Babel Formatter helps with preset transforms.
JSX often lives next to TypeScript, GraphQL queries, plus MDX docs. Keeping every file consistent reduces review time.
Practical answers for formatting JSX in React projects, plus common pitfalls that cause broken output.
Paste a complete component or a complete JSX block. Partial fragments work, but missing braces or tags often fail validation.
Validation checks syntax, not style intent. Output changes based on options like quotes, trailing commas, plus arrow function parentheses. If the output differs from your repo, adjust settings to match your lint rules.
Both modes exist. Format produces readable output with indentation. Minify compresses JSX for sharing a short snippet. Avoid minified JSX in source control.
JSX with TypeScript syntax often formats well, but complex type expressions vary by parser rules. If you hit a failure, run the <a href="https://toolexe.com/formatter/typescript-beautifier">TypeScript Beautifier</a> first, then return here for JSX style.
Formatting changes whitespace plus layout, not logic. Still, a malformed input block can produce different grouping after formatting. Validate first, then scan the output around nested ternaries or chained logical operators.
This page formats inside your browser session. Avoid pasting secrets either way, especially API keys, tokens, or private customer data.
