  Strong gravitational lensing in galaxy clusters has become an essential tool
in astrophysics, allowing us to directly probe the dark matter distribution and
study magnified background sources. The precision and reliability of strong
lensing models rely heavily on the number and quality of multiple images of
background sources with spectroscopic redshifts. We present an updated strong
lensing model of the galaxy cluster MACS J0416.1-2403 with the largest sample
of multiple images with spectroscopic redshifts in a galaxy cluster field to
date. Furthermore, we aim to demonstrate the effectiveness of JWST particularly
its NIRISS camera, for strong lensing studies. We use the JWST 's NIRCam
imaging and NIRSpec and NIRISS spectroscopy from the CAnadian NIRISS Unbiased
Cluster Survey (CANUCS). The cluster mass model is constrained using Lenstool
software. Our new dataset, used for constraining the lens model, comprises 303
secure multiple images from 111 background sources and includes systems with
previously known MUSE redshift and systems for which we obtained spectroscopic
redshift for the first time using NIRISS and NIRSpec spectroscopy. The total
number of secure spectroscopic systems is >20% higher than in the previous
strong lensing studies of this cluster. The derived strong lensing model can
reproduce multiple images with the root-mean-square distance of 0.53''. We also
provide a full catalogue with 415 multiple images, including less reliable
candidates. We furthermore demonstrate the effectiveness of JWST particularly
NIRISS, for strong lensing studies. As NIRISS F115W, F150W, and F200W grism
spectroscopy captures at least two of the [OII] {\lambda}3727, [OIII]
{\lambda}{\lambda}4959, 5007, and H{\alpha} lines at 1<z<3 (a redshift range
particularly relevant for strong lensing studies) without target pre-selection,
it complements MUSE and NIRSpec observations extremely well.
