Effervescent tablet manufacturing research aims to combine citric acid and tartric acid as a source of acid in an effort to obtain the most optimal concentration in the formula and can practically be consumed in the form of effervescent tablets. Randomized Group Design (RAK) with one variable, namely the ratio of citric acid (1.91%, 1.95%, 1.99%) and tartaric acid (23.59%, 23.55%, 23.51%). The results showed that the ratio of citric acid and tartric acid affects the water content, vitamin C, total dissolved solids, hardness, soluble time, uniformity of weight, color, and taste of effervescent tablets dry strawberry fruit extract and dried aloe vera extract. The best treatment was an a3b3 sample with a moisture content of 2.73%, vitamin C content of 497.26 grams, total dissolved solids of 7.30 brix, hardness of 5.47 kg/cm3, a soluble time of 3.34 minutes, a weight uniformity coefficient of variance (CV) 4.74%, a color of 2.01, and a taste of 2.06. Antioxidant results show a ratio of citric acid 1.99% and tartric acid 23.51% resulting in active antioxidant activity of 82,78 ppm.