Two vat polymerization techniques were evaluated to print innovative hydrogel scaffolds for tissue engineering, from aqueous photo-crosslinkable formulations based on methacrylated carboxymethylcellulose (mCMC). A first formulation containing 2 wt% mCMC with a methacrylation degree (DM) of 34 % and lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP) as photoinitiator was specifically developed for Digital Light Processing (DLP). Considering their viscoelastic properties measured by shear rheology, the DLP-printed hydrogels were proposed for soft tissue repair. Interestingly, the swelling ratio and shape of the printed hydrogels were found to be preserved when immersed in a physiological environment. While DLP-printed hydrogels demonstrated impressive Xand Y-resolutions (85 µm), they were limited in producing hollow objects in the Z direction. To address this limitation, the 3D printing of complex mCMC hydrogels through Two-Photon Polymerization (TPP) was investigated for the first time, using a second formulation composed of 4 wt% mCMC (DM = 50 %). 3D scaffolds with cavities of 30 µm were successfully printed with a resolution of 10 µm, paving the way for the design of scaffolds with controlled and precise structures, for soft tissue engineering.