Show HN: Palworld Breeding Calculator – Breeding Tree and Combination Visualizer

1 points by droidHZ 5 months ago · 0 comments · 2 min read

Hi HN!

I’m an indie dev who got hooked on Palworld’s breeding system and built a tool to make planning less painful:

What it does

Forward calc: Pick two parents → instantly see the child.

Reverse lookup: Enter a target Pal → list all valid parent pairs.

Shortest-step planner: I model breeding as a graph and run a shortest‑path algorithm (Dijkstra/BFS variant) to find the minimal number of breeding steps from what you already own to the target.

Breeding tree visualizer: Expand/collapse an interactive tree of combos to understand the route at a glance.

Combination browser: Search/filter all possible parent-child sets.

Tech bits

Next.js + static JSON data (scraped/cleaned from public sources), deployed on Vercel/Cloudflare.

Precomputed indices for fast reverse lookups; client-side memoization and caching.

Graph layer treats each Pal as a node; edges represent “(A,B) → C” relationships. Since that’s technically a hyperedge, I flatten it into a weighted graph so a shortest-path algorithm can run efficiently.

No trackers/popups; just a single AdSense slot (feedback welcome on this).

What I’d love feedback on

UX: Is the flow from “I have X and want Y” smooth enough?

Performance/mobile: Any obvious bottlenecks?

Data correctness: Spot inaccuracies or missing combos?

Link: https://www.palworldbreedingcalculator.org/

Thanks for reading! I’ll be around to answer questions and ship fixes quickly.

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