Are my files uploaded?

No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.

Is it free? Are there limits or watermarks?

Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.

Does it work offline?

Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

Home / Developer / Semver Calculator

Semver Calculator

Check versions against npm ranges like ^1.2 or ~2.0, compare, sort and bump semantic versions.

Free, no uploads, no sign-up. Runs 100% in your browser.

How Semver Calculator works

Versions are parsed by the Semantic Versioning 2.0 rules. Ranges use the npm syntax (caret, tilde, x, hyphen and ||) and are explained in plain words, and pre-releases only match when you allow them, like npm.

Input: Text. Output: Text.

How to use Semver Calculator

Type a version to see its parts and next versions.
Type a range to see if it matches.
Paste a list to sort it and find the highest match.

Tips

Everything is computed locally. Safe for tokens, keys and private data.
Use Ctrl/⌘ + K to jump between developer tools quickly.

Semver Calculator FAQ

Are my files uploaded?: No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.
Is it free? Are there limits or watermarks?: Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.
Does it work offline?: Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

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