About Crossly

Crossly builds free, single-purpose calculators for people dealing with cross-border life — importing a parcel, counting visa days, converting grades, or planning a trip abroad.

Each tool runs entirely in your browser. We don't require an account and we don't upload your inputs to a server. Where a tool relies on official rules (tax thresholds, visa windows), we show the rule and link its source so you can verify it.

Who makes this

Crossly is an independent project built and maintained by a solo developer. We focus on doing a handful of calculators really well, keeping them free, and showing the rules and sources behind every estimate so you can check our work.

How we keep it free

We show advertising and, on some pages, affiliate links to relevant services (such as shipping forwarders or travel insurance). These never change the result a calculator gives you.

Contact

Questions or corrections: get in touch.