What do I still need to buy?
Tell it what you already own, pick the tool you are considering, and it works out whether your packs can actually run it — including the tools that need two packs rather than one, which is the case most buying guides quietly skip.
Everything happens in your browser. Nothing you enter is sent to us or stored on a server — see privacy. Your list is kept in this page’s address, so you can bookmark it or send it to yourself.
1. What do you own?
Add kits, bare tools and packs. A kit is expanded into its exact contents, so you will not be told to buy something already in the box.
| Owned | Qty |
|---|
2. Which tool do you want to run?
3. The answer
Pick a target tool above.
How this decides
Compatibility answers are not computed here — they are read from the same reviewed, cited data the compatibility tables render, so this page cannot disagree with the rest of the site. What happens in your browser is only counting: expanding kits into their contents, adding up the packs that work, and subtracting.
Where a pack has no reviewed evidence for a tool, it is reported as unknown and left out of the count. It is never rounded up to “works”. Where a tool does not publish how many packs it needs, the page says so rather than assuming one. See methodology.