General marketplace
Lectronz
Independent makers selling circuit boards, electronics, DIY kits, modules and niche devices. The closest thing to a broad storefront for the open-hardware ecosystem.
lectronz.comSupply directory & sourcing guide
Where to buy
the thing.
Open hardware is fragmented by design: one project sells a kit, another publishes a BOM and expects you to source everything, and a third has a vendor network of printed parts and electronics. This is the map of who actually supplies what.
Marketplaces
Start with the ecosystem
Seven places that shorten the searchCurated developer hardware
Crowd Supply
Developer hardware, experimental electronics, open computers, FPGA boards and test equipment. Listings may be in stock, on preorder, or still in development.
crowdsupply.comPrinted robotics parts
CyberFab3D
Printed parts for open-source robotics projects — arms, quadrupeds, drones and humanoids — for builders without a 3D printer.
cyberfab3d.comRobotics kits
ForgeMotion Labs
Packages multivendor bills of materials into complete robotics kits, including SO-101 follower and leader arms, electronics kits and replacement components.
forgemotionlabs.comKits + print packs
RobotEd
Complete robot kits, electronics-only packages and printed structural parts. The catalog includes the SO-101 arm, LeKiwi mobile base and other open robotics builds.
roboted.chDesign discovery
OpenHardware.io
Discover and share open hardware designs, find fabrication resources and connect with makers. More collaboration platform than turnkey kit store.
openhardware.ioScience hardware
Open Science Shop
A vendor directory for open-source microscopes, printed parts, electronics and complete scientific-instrument kits, aimed at laboratories and field work.
openscienceshop.orgNo affiliation or referral fees. Marketplaces change their catalogs, and a listing does not guarantee that a kit is in stock or that the design files are complete.
Also worth a tab: Robotheca for open robot designs with licenses, parts and buildability notes, and OpenArmory for arms, hands, humanoids and teleoperation rigs.
Distributors
Fill the gaps
When no project kit existsMost BOMs eventually send you to a component distributor. These are the usual stops for dev boards, sensors, connectors, passives, motors and tools — not project-specific kit stores.
Someone sells the build
Complete or partial kits, assembled hardware, or project-specific parts. The fastest route, but confirm what is included: printed parts, fasteners, wire and tools are often extra.
- Check the revision and bill of materials against the project docs.
- Ask whether printed parts are included or sold separately.
- Verify stock before planning a weekend build.
You source the build
Designs, CAD or schematics are published, but the parts are yours to find. Expect to reconcile substitutes, minimum order quantities and shipping across several suppliers.
- Start from the project's own BOM revision, not a blog post.
- Price the fasteners, wire and printed parts — they add up.
- Use the BOM matcher to spot gaps before ordering.
It depends on the vendor
The software is open, but hardware openness varies by product or manufacturer. A board may have published schematics while the airframe or enclosure does not.
- Check the specific board revision, not just the ecosystem.
- Prefer vendors that publish design files and pinouts.
- Assume replacement parts may be proprietary until proven otherwise.
Pre-build checklist
Six checks,
one fewer dead end.
A published design is not the same as a purchasable product. Run these checks before you order anything.
License note: check the exact hardware license before selling machines or derivative parts. Some designs, such as the LowRider CNC, use non-commercial terms.
- 1License
Open software does not imply open hardware. Check the design files, not just the firmware repository.
- 2Complete BOM
Does it include printed parts, fasteners, connectors, wire and the tools you will need?
- 3Printed parts
Do you have a printer, or is there a print service or kit vendor that supplies the structural parts?
- 4Revision
Match the BOM to the exact revision in the build guide. Community remixes drift quickly.
- 5Support surface
An active forum, a revision history and a few recent builds are worth more than a star count.
- 6Safety and local rules
Mains power, LiPo packs, lasers and radio equipment all carry rules. Build within them.
Back to discovery
Pick a project
with a real route.
The field index marks every entry as Kit, BOM or Mixed, so you know what you are getting into before falling for the render.
Already have the list?
Paste the BOM and check it against the parts index before you start opening supplier tabs.