NPM Package Name Validator
Checks lowercase letters, URL-safe characters, length, scoped package format, leading dots or underscores,…
What the NPM Package Name Validator does
Checks lowercase letters, URL-safe characters, length, scoped package format, leading dots or underscores, spaces, and common Node core module names. Adjust the controls and the preview updates immediately, so you can dial in exactly what you want and copy the result straight into your project — no build step and no account.
One thing to keep in mind: It does not call the npm registry. It only validates the shape of the name you type.
Private and in your browser
Everything runs locally in your browser. Your input is never uploaded, so the tool stays fast and works offline, and the copy and download buttons always use the current result shown in the output panel.
Frequently Asked Questions
What does the NPM Package Name Validator do?
Checks lowercase letters, URL-safe characters, length, scoped package format, leading dots or underscores, spaces, and common Node core module names.
What should I keep in mind?
It does not call the npm registry. It only validates the shape of the name you type
Does it upload my input?
No. The NPM Package Name Validator runs entirely in your browser — your input is never uploaded, and it keeps working offline once the page has loaded.
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