PartPlanner vs PCPartPicker: which one do you need?

If you have built a PC in the last decade, you have used PCPartPicker or something like it. It is the default first stop: pick your parts, watch it flag the ones that will not work together, and let it hunt down the cheapest price. It is very good at that, and this post is not an argument that it is not.

It is an argument that “which is better, PartPlanner or PCPartPicker” is the wrong question, because the two tools barely overlap. One helps you find the cheapest place to buy a new build. The other helps you run everything around the parts you own: planning builds, tracking what they cost, and selling them. Ask which job you are actually doing, and the answer falls out on its own.

What is PCPartPicker best at?

Researching and buying a new build. That is its home turf and it owns it.

Retailer pricing. Its pricing integrations watch a long list of shops, keep a history so you can see whether today’s price is actually a deal, and will alert you when a part drops. If your question is “where do I buy this new part for the least money”, it is a strong answer, and a genuinely useful thing to have open alongside PartPlanner when a build needs new parts.

Community. This is the part that is easy to undervalue. PCPartPicker is a place to share a build, browse what other people have put together, copy a part list, and talk parts and builds in the forums. That social layer, other builders looking over your plan and swapping ideas, is something a spreadsheet or an inventory tool does not give you, and it is a real reason people keep going back.

Compatibility checking. Drop parts into a list and it flags the CPU that does not fit the socket, the cooler that fouls the RAM, the power supply that is short on connectors. It does this well. It is worth knowing that PartPlanner checks compatibility too when you plan a build, so this is shared ground rather than a reason to pick one over the other.

Notice what these have in common. They are forward-looking, about new parts from retailers, and built around one build at a time. That is not a criticism. It is the shape of the problem PCPartPicker set out to solve, and it solves it about as well as it can be solved.

Where does PCPartPicker stop?

At the point where you stop planning a purchase and start owning inventory.

PCPartPicker has no real concept of a part you already own. It does not know that you bought a dead office PC for cheap, pulled a working graphics card and a RAM kit out of it, and now have those sitting on a shelf waiting to go into something else. It cannot split the price you paid for that whole machine across the parts it became, so it cannot tell you what the graphics card actually cost you. And it has nothing to say about the other half of a flip, the selling: what a part sold for, what the fees took, whether the machine made money in the end.

None of that is a flaw. You would not fault a hammer for not driving screws. PCPartPicker is a build-planning tool, and inventory, cost basis, part-out math and profit are simply not build planning. They are the running of a small operation, and that is a different tool.

The moment you feel this wall is specific and recognisable. It is when you have three machines in progress, a shelf of pulled parts, and no clean answer to “which card came out of which PC, what did it cost me, and where is it now”. A part list cannot hold that. A spreadsheet can, right up until parts start moving between builds and the spreadsheet quietly stops telling the truth.

What is PartPlanner for, then?

Exactly that shelf, and everything around it.

PartPlanner starts from the thing you own, not the thing you are about to buy. You capture a part or a whole machine with its cost, condition, specs and photos. When you break a bought PC down, you allocate its purchase price across the parts it became, so every part carries a real cost basis instead of a guess. You plan builds from stock you actually have, with a compatibility check so you know the parts fit, watch each part move from available to assigned to sold, and track builds from planned to listed to sold without the two records crossing. When something sells, the sale ties back to what it cost, so profit is a number you look up rather than reconstruct on a Sunday night.

That is the work PCPartPicker never set out to touch, and it is the same work whether you are a hobbyist keeping years of parts and builds straight, a repair or refurb workshop running many machines at once, or a flipper who lives or dies on margin. The questions are identical: what do I own, what did it cost, and where did it go. Deciding whether to part out or sell whole, knowing what a finished build really cost once you count the new power supply, seeing which kinds of machines return the most for the effort: all of that needs a record of what you own, paid, and sold, and that record is what PartPlanner is.

So which one is right for you?

Match the tool to what you are doing, not to which is “better”.

You are…	Reach for
Building one PC for yourself from new parts	PCPartPicker. Spec it, price it, buy it for the least money. PartPlanner is more than you need for a one-off.
Chasing the cheapest new price on parts	PCPartPicker. Strong retailer pricing integrations, plus a community to check your plan against.
A hobbyist keeping years of parts and builds straight	PartPlanner. Inventory and build planning in one place, so nothing gets lost on a shelf.
A repair or refurb workshop running many machines	PartPlanner. Track every part, build and cost across the whole bench.
Buying, breaking down and reselling machines	PartPlanner. Cost basis, part-out math and profit are its entire reason to exist.
Trying to know if your work is actually making money	PartPlanner. PCPartPicker has no way to answer this.

If you build one machine a year, this whole post has an easy answer: use PCPartPicker and enjoy it. It is the right tool and PartPlanner would be overkill.

Can you use both?

Plenty of people do, and they sit together well.

When a build needs new parts, PCPartPicker is a strong companion: lean on its retailer pricing to find them cheaply, and on its community to sanity-check the plan against what other builders have done. Then the part itself, what it cost, which build it went into and what it eventually sold for, lives in PartPlanner alongside everything else you own. Think of PCPartPicker as where you research and buy a new part, and PartPlanner as where that part lives for the rest of its time with you, tracked from the moment it arrives to the moment it sells.

The short version

PCPartPicker is where you go to price and shop a single new build. It is excellent at it, and if that is all you are doing, stop reading and go use it.

PartPlanner is where you go once PCs become a repeating thing rather than a one-off, whether you are a hobbyist, a workshop or a flipper: parts, builds, costs and sales in one place, so the whole operation is something you can measure instead of something you hope is working. Different jobs, not a contest, and knowing which job you are doing is the whole answer.