Build a PC Online
PlanMyPC is a free PC part picker and system builder. Pick a CPU, motherboard, memory, graphics card, storage, case and power supply, and it checks CPU socket, memory type and slots, GPU length, cooler height, case form factor and PSU wattage as you go. No account needed; share any build as a link.
Updated
System Builder
Choose your parts, check compatibility, and see each part’s price at the store we link.
Start from a Template
Pick a preset build for your use case and budget, then customize it to your liking.
As an Amazon Associate, PlanMyPC earns from qualifying purchases. We may also earn from other stores linked here. How we make money
Core Components
| Component | Selection | Price | Actions |
|---|---|---|---|
CPU / Processor | |||
CPU Cooler | |||
Motherboard | |||
Memory | |||
Storage | |||
Video Card | |||
Case | |||
Power Supply | |||
Operating System | |||
Peripherals
| Component | Selection | Price | Actions |
|---|---|---|---|
Monitor | |||
Keyboard | |||
Mouse | |||
Headset | |||
Speakers | |||
Webcam | |||
Case Fan | |||
Networking | |||
Optical Drive | |||
Gaming Setup & Accessories
| Component | Selection | Price | Actions |
|---|---|---|---|
Gaming Chair | |||
Desk | |||
Mousepad | |||
Microphone | |||
Stream Deck | |||
Capture Card | |||
VR Headset | |||
Controller | |||
Lighting | |||
UPS | |||
External Storage | |||
Audio Interface | |||
Sim Racing | |||
Cable Management | |||
About the PlanMyPC PC builder
PlanMyPC is a free online PC part picker and system builder. Choose a CPU, motherboard, memory, graphics card, storage, case, and power supply, and we automatically check that your parts work together, estimate your system’s power draw, and total up prices as you go.
Whether you’re building your first gaming PC, upgrading an existing rig, or planning a high-end workstation, the builder keeps your parts list compatible and within budget from start to finish.
How the PC builder works
Add parts by category and let PlanMyPC handle the hard part. Here’s what you get with every build:
Compatibility checking
Every part you add is checked against the rest of your build in real time — CPU socket, RAM type, GPU clearance, and PSU headroom — so you catch conflicts before you buy.
Wattage estimation
As you pick components, PlanMyPC keeps a running estimate of total system power draw and warns you when your chosen power supply would run above 80% of its rating.
Running price total
See a price for each part from the retailers we track and a running total for the whole build, so you can stay on budget as you go.
Works for any build
From a budget office PC to a 4K gaming rig or a workstation, start from scratch or a template and customize every component to fit your needs.
Prefer guidance? Try the AI Build Advisor for a recommended parts list, or browse community builds for inspiration.
Want to know what the builder is checking? Read will these PC parts work together for the eight compatibility checks explained one by one.
Already have a parts list? Run it through the PC build compatibility checker, or see how we compare as a free PCPartPicker alternative.
Link straight to a ready-made build
Put a parts list in the link and the builder opens with those parts in it — for a forum reply, a chat message or an AI assistant’s answer. Separate the parts with a vertical bar:
https://planmypc.com/build?list=Ryzen 7 9800X3D|RTX 5070|B850|32GB DDR5-6000|2TB NVMe|850W
- Use up to 20 parts per link. A category prefix such as
cpu:,gpu:orpsu:is optional; add one when a name could be more than one kind of part. - Chip and spec names (“RTX 5070”, “850W”) open one matching model, preferring one we have a price for, that you can swap in the table. A full product name opens that product.
- Add
x2after a part for two of it, for example2TB NVMe x2. - If your builder already has parts, it asks before replacing them. Parts we can’t match are listed with a catalogue search.
Try it: 1440p gaming build or 1080p budget build.
Not sure where to start?
Start from a guide, a game, or a budget, then open the parts list in the builder above and change whatever you like.
PC part compatibility: common questions
- What is a PC build compatibility checker?
- A PC build compatibility checker validates that the parts in a build work together before you buy them — CPU socket vs motherboard, RAM type and speed, GPU length vs case clearance, cooler height, and power-supply wattage. PlanMyPC runs these checks free, in the browser, as you add each part.
- How do I check if my PC parts are compatible?
- Add every part to a builder and let it check them as a set. Five checks matter: CPU socket matches the motherboard, RAM generation matches the board, the GPU fits the case length, the cooler fits under the side panel, and the PSU covers total draw with headroom. PlanMyPC does all five.
- Is PlanMyPC's PC builder free?
- Yes. The PlanMyPC system builder is completely free with no account required, no subscription, and no premium tier. You can pick parts, run compatibility checks, estimate wattage, see part prices, and share a build permalink at no cost.
- What power supply wattage do I need for my build?
- Size the PSU to total system draw plus roughly 30% headroom — a mid-range gaming build with one GPU typically lands between 650W and 850W. PlanMyPC adds up the estimated draw of the parts you have selected and warns when your chosen PSU would run above 80% of its rating.
- Do I need to install anything to use the PC builder?
- No. PlanMyPC runs entirely in the web browser on desktop and mobile. There is nothing to download or install, and no sign-up is required to build a parts list or run compatibility checks.