FPVBuilder is a free online FPV drone builder. Configure your drone part by part with electrical, mechanical and class-coherence checks. No signup. No paywall.
Start building Browse popular buildsThree personas: (1) beginners who never built a drone and need someone to validate parts are compatible; (2) intermediate pilots upgrading components without messing up stack mount or connector; (3) FPV stores who want to see how the community is building with their catalog. Works for all.
Frame, motors, ESC (or integrated ESC+FC stack), FC, VTX, camera, receiver (ELRS/Crossfire/TBS), battery, propellers, RX antenna and VTX antenna. Each part has technical specs (KV, stator size, voltage, mount pattern, etc.) cross-checked against the rest of the build.
Not a static catalog. Every change in the build triggers validation with 50+ rules: R0 (FC required), R1-R4 (mount patterns), R5-R10 (electrical), R12-R15 (camera/VTX), R21 (class coherence), R49-R58 (advanced: BEC, wire gauge, AUW vs EU class). All documented here.