CabinFit
A web app that brings hundreds of airline baggage rules into one place. Travellers enter their bag dimensions and instantly see whether it fits.


Before a flight, travellers are left asking one simple question: will my bag fit? Personal-item and carry-on limits differ across airlines. CabinFit brings those limits into one database, lets travellers enter their dimensions, and gives them an immediate answer without requiring an account.
I designed and built CabinFit independently from the ground up, including the data model, interface, and full-stack implementation.
The product revolves around a single decision: does the bag fit? Airline selection, dimension entry, and the result form one direct, account-free flow. Links to official sources and a visible last-checked date make the underlying information easier to trust.
I built a baggage-rules database covering hundreds of airlines. The comparison engine checks all six possible bag rotations, supports airline and category queries, and is structured around official sources so rules can be reviewed and kept current.
AI accelerated the collection and structuring of airline rules and helped me explore interface alternatives. That left more time for the core challenge: making the dimension-comparison logic dependable.
Travellers can now find out whether their bag fits before reaching the gate—free, without an account, across hundreds of airlines.
One measurement. Six orientations.
Airlines and bag brands do not always list dimensions in the same order. CabinFit takes one measurement, compares the bag in all six possible orientations, and only then returns a result.
Read the methodOne input
The traveller enters the packed outside dimensions once.
Six comparisons
The system tries the same bag in every axis order.
Careful result
Instead of a guarantee, it shows the dimensional match, source, and date.
What the product shows
Scope verified from the published interface, sitemap, and page source. No estimated traffic or conversion figures are included.
- 83English airline-detail routes published in the sitemap.
- 6 waysPossible axis orders documented on the methodology page.
- 6 languagesLanguage alternatives published for the same product in the sitemap.
CabinFit
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If the thinking behind this project feels close to what you need, tell me about your idea. We can make the first step clear together.


