  The Future Circular Collider (FCC) is a post-LHC project aiming at direct and
indirect searches for physics beyond the SM in a new 100 km tunnel at CERN. In
addition, the FCC-ee offers unique possibilities for high-precision studies of
the strong interaction in the clean environment provided by $e^{+}e^{-}$
collisions, thanks to its broad span of center-of-mass energies ranging from
the Z pole to the top-pair threshold, and its huge integrated luminosities
yielding $10^{12}$ and $10^8$ jets from Z and W bosons decays, respectively, as
well as $10^5$ pure gluon jets from Higgs boson decays. In this contribution,
we will summarize studies on the impact the FCC-ee will have on our knowledge
of the strong force including: (i) QCD coupling extractions with per-mille
uncertainties, (ii) parton radiation and parton-to-hadron fragmentation
functions, (iii) jet properties (ligh-quark-gluon discrimination, $e^{+}e^{-}$
event shapes and multijet rates, jet substructure, etc.), (iv) heavy-quark jets
(dead cone effect, charm-bottom separation, gluon $\rightarrow c\bar{c}$,
$b\bar{b}$ splitting, etc.); and (v) non-perturbative QCD phenomena (color
reconnection, baryon and strangeness production, Bose-Einstein and Fermi-Dirac
final-state correlations, etc.).
