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Paste a module, a script or a snippet and get it back the way Prettier would write it — including quote style and semicolons, if you have opinions. Runs in a worker on your device; your code never leaves the tab.
The engine downloads once, then stays ready for the rest of your visit.
Paste code, or open a file.
Paste into the editor or open a file — everything you add stays in this tab, and you see exactly what the tool will work on before anything runs.
Your browser does all the work locally. Nothing is uploaded — what you paste never leaves this tab, so there’s nothing for anyone to store, scan, or leak.
Take the result to your clipboard or save it as a file. Close the tab and nothing of what you pasted remains.