1Cherry BlossomOur product
Best for: The one worth paying for: footprints from real part data, checked on a real board
A full schematic and PCB editor in the browser with an AI agent, Sakura, built in. Describe the board in plain English and Sakura finds real parts, draws and tidies the schematic, then asks before it places and routes the PCB. Edit anything by hand, then export Gerbers, an editable KiCad project, a BOM, pick-and-place, STEP or open Circuit JSON.
Platform
Browser, nothing to install
Pricing
The Free plan is the full editor, by hand, with no AI. Pro adds the AI for $20 a month, with 4M AI credits and 600 AI actions a day. Ultra is $140 a month with 32M credits and the frontier models. Usage past the allowance is $5 per 1M credits, only if you turn it on. There is no API key to connect and no per-seat licence.
2KiCad libraries
Best for: KiCad users who want footprints that ship with the tool
The official symbol, footprint and 3D model libraries, community contributed and hosted on GitLab, and included with the KiCad installer. Licensed CC-BY-SA 4.0 with an exception that frees designs made with them from the licence.
Platform
KiCad (files readable by other tools that import KiCad)
3SnapMagic Search (SnapEDA)
Best for: A specific part in almost any ECAD format
Free symbols, footprints and 3D models for what it lists as 10 million parts, for 20+ design tools including Altium, KiCad, Eagle, OrCAD, PADS and Fusion. Its site describes automated manufacturability checks on footprints.
Platform
Browser download, 20+ ECAD formats
Pricing
Free for designers; paid credits for custom parts made to order
4Ultra Librarian
Best for: The widest spread of CAD formats
Free symbols, footprints and 3D models, which it describes as over 16 million verified parts, in over 30 CAD formats including Altium, Cadence, KiCad, OrCAD, PADS, Pulsonix and Quadcept.
Platform
Browser download, 30+ CAD formats
Pricing
Free downloads with registration; paid librarian services
5SamacSys (Component Search Engine)
Best for: Free parts, with a paid custom-part service behind them
Free symbols, footprints and 3D models for millions of components from Supplyframe's SamacSys, with direct downloads into Altium, KiCad, Cadence, PADS, Zuken and more. A paid librarian service builds IPC-compliant parts to spec.
Platform
Browser download into the major ECAD tools
Pricing
Free for engineers; paid custom part service
6EasyEDA library
Best for: EasyEDA users building at JLCPCB
EasyEDA's site describes millions of free component libraries with symbols, footprints and 3D models, tied to the LCSC parts catalogue.
Platform
EasyEDA (browser and desktop)