This paper provides an extensive overview of implementing a 6T SRAM cell in NGSpice, an open-source mixed-level/mixed-signal electronic circuit simulator. The 6T SRAM cell, employing six transistors to store a single bit of data, offers rapid read and write operations, suitable for high-performance applications. The implementation initiates with the schematic design of the 6T SRAM cell in NGSpice, where six transistors are interconnected in a cross-coupled latch configuration. Following this, a symbol for the cell is created to ease integration into larger circuits and test benches. Parameters such as transistor dimensions, supply voltage, and technology-specific characteristics are precisely defined to model the cell's behavior in NGSpice accurately. To validate the 6T SRAM cell, a series of simulations are conducted. In this detailed analysis, we focus on the practical aspects of implementing the 6T SRAM cell, emphasizing the advantage of its six-transistor structure for high-speed read/write operations and efficient data storage within the cell.