The process of making biodiesel from non-food oils, specifically Jatropha and Karanja oils, is explained in this research article. Methanol and potassium hydroxide were used as catalysts in a two-step process. Jatropha oil was found to have a higher biodiesel yield than Karanja oil. Additionally, the biodiesel's properties were examined and found to be within the ASTM standards' range. The study came to the conclusion that non-edible oils like Jatropha and Karanja oils are a good source for making biodiesel and could be used as an alternative to fossil fuels. The potential utilization of biodiesel produced from oils that are not edible as an alternative fuel for diesel engines. The consequences of this study can be helpful for policymakers, analysts, and partners keen on advancing the utilization of sustainable power sources and lessening reliance on petroleum products