1T-WS₂ is known for its higher hydrogen evolution reaction (HER) performance than 2H-WS₂. However, the lack of thermodynamic stability and absence of large-scale synthesis procedures kept 1T-WS₂ significantly ignored to date. In this report, for the first time, we have fabricated 1T-WS₂ in 3D-dendritic nanostructures over flexible carbon cloth (CC) following doping and intercalation of Fe and P (1T-Fe/P-WS₂@CC). The HER and OER activities of 1T-Fe/P-WS₂@CC outperform state-of-the-art electrocatalysts, demonstrating a low overpotential (η_HER =116 mV, η_OER =267 mV @ 10 mA cm⁻²), small Tafel slope (HER =65 mV dec^-1, OER =70.1 mV dec^-1), and significant durability. The 1T-Fe/P-WS₂@CC (+,−) alkaline elctrolyzer also shows exceptional high performance, required only 1.53 V cell voltage at the current density of 10 mA cm⁻². Overall, this work opens up a new dimension for simple and scalable fabrication of highly efficient and low-cost electrocatalyst based on WS₂.