Expands version ranges like ^1.2.3, ~1.2 and 1.x into plain lower/upper bounds, and checks whether two ranges share any version.

How to use it

1. Paste a range (e.g. ^1.2.3, ~1.2, >=1 <2, 1.x || 2.x)
2. Read the expanded bounds — shown as "1.2.3 or later, below 2.0.0"
3. Enter a version to see whether it falls inside the range
4. Enter two ranges to see whether they share any version — if not, the package gets installed twice

Common questions

Does ^0.2.3 accept 0.3.0?

No. The 0.x rule is different: ^0.2.3 means 0.2.3 or later, below 0.3.0. Remembering "^ accepts minor bumps" is wrong for 0.x — which is why this tool shows the bounds instead of asking you to remember.

Why does it matter if two ranges do not overlap?

The install still succeeds. But the same package gets installed twice, at two versions — you end up with two instances, and things like "same class but instanceof is false" start happening.

Is anything sent to a server?

No. Everything is computed in your browser.

Other tools

This tool page states where what you enter goes — see the badge above. All tools · KarmoLab · Who made this · Built with AI. View source