TypeScript Formatter
Formats TypeScript code with type-aware indentation, interface alignment, and consistent syntax structure for large codebases.
How to Use the TypeScript Formatter
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Frequently Asked Questions
What TypeScript syntax formats correctly?
Interfaces, type aliases, generics, enums, and decorators indent and space consistently. A 500-line component file formats in one pass — annotations align without touching type logic.
Does it change my types?
Never — formatting is whitespace and punctuation only. Type annotations, generics bounds, and assertions pass through byte-identical in meaning.
Tabs or spaces?
Both, configurable: 2-space (most TS projects), 4-space, or tabs. Match the repo's existing config to keep diffs clean.
Does TypeScript code leave the browser?
No — formatting runs locally in your browser. Code never leaves your device and no account is needed.
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Last updated October 2026