MostlyPCB
Mostly automated. Fully reviewed.

Tell us what you’re connecting.
We’ll mail you the board.

MostlyPCB makes custom circuit boards: you describe what you need, automation drafts the design, an engineer checks it and signs off, and we mail you a real board.

Describe your board
US-based serversUS-citizen reviewersEngineer sign-off on every board

Simple and medium boards. Name your parts and what it’s for. We design, route and check it, an engineer signs off, and it ships to your door.

Try
delivered

How it works

Three steps: tell us about it, approve the design, and get the board in the mail.

01DescribeTell us the parts and what it’s for.We reply by email.
02Approve the designSee the reviewed board and the price.
03Open your mailboxBuilt, assembled, shipped.
Pricing

One price, delivered. Shown before you pay.

Choose a bare board you solder yourself, a board that is ready to use, or a custom quote for harder boards.

Bare boards

What’s included in Bare boards
Routed, checked, engineer-reviewedFabbed and shippedKiCad files includedYou solder the parts

Ready to use

Most people
What’s included in Ready to use
Everything in bare boardsParts sourced and assembledInspected at the fabPlug it in when it lands

Needs a human

Custom quote
What’s included in Needs a human
High-speed, BGA or dense boardsAn engineer scopes it with youQuote before any work starts
Request a quote