Tools & Applications on Manuj Guptahttps://manujg.com/tools/Recent content in Tools & Applications on Manuj GuptaManuj Guptahttps://manujg.com/images/social-cover.pnghttps://manujg.com/images/social-cover.pngHugoen-usSun, 22 Mar 2026 00:00:00 +0000Passport Photo Editorhttps://manujg.com/tools/passport-photo-editor/Sun, 22 Mar 2026 00:00:00 +0000https://manujg.com/tools/passport-photo-editor/Free, 100% browser-based passport photo editor. Crop, adjust, and print to any international standard — no uploads, no cost, completely private.ADC Digital Twin & Metering Labhttps://manujg.com/tools/stm32h7-adc-simulator/Tue, 10 Mar 2026 00:00:00 +0000https://manujg.com/tools/stm32h7-adc-simulator/High-precision STM32H7 ADC simulator with harmonic distortion and CSV export.