Here is a collection of standalone interactive tools, utilities, and applications I have built.
Type: Utility | Status: New
Free, browser-based passport photo editor. Crop to any international format (US, UK, India, Schengen & more), arrange print sheets, and download — all 100% privately in your browser.
Launch Editor →
Type: Engineering Tool | Status: New
An interactive simulator for STM32H7 ADC behavior, featuring harmonic distortion modeling and CSV data export for metrology testing.
Launch ADC Twin →
Type: Web Application | Status: MVP
A 100% client-side visualization tool for Adaptive AUTOSAR architectures.
Launch SysCanvas™ →
Type: Utility | Status: New
A local Python dashboard that pings three network hops simultaneously — Mesh Node, Router, and ISP — and logs which one is the culprit whenever a drop occurs. Built to catch micro-outages too short for a standard speed test to detect.
View on GitHub →
I got tired of paying for something that a browser can do perfectly well. So I vibe-coded this up — free for everyone, forever.
Everything runs locally in your browser. No photo ever leaves your device. No account. No subscription.
What it does: Crop to any international standard — US, UK, India (Passport, Visa, OCI), Schengen/EU, Japan, China, Australia, Canada, and more. Free sizing — enter exact dimensions in mm if your country’s requirements aren’t listed. Pan & zoom — drag the photo inside the crop frame to get the framing just right. Brightness & contrast — fine-tune the image before export. Print sheet layout — arrange multiple copies on standard paper sizes (4×6″, 5×7″, A4, Letter) with adjustable margins and gaps. Portrait & landscape — choose your print orientation. Download options — single photo or full print-ready sheet. Choose JPEG (recommended for passport submissions) or your original format. 100% private — all processing happens in your browser. Nothing is uploaded anywhere. → Launch the Passport Photo Editor
...
This tool models the behavior of a 16-bit SAR ADC integrated with a DMA controller. It is designed to help engineers validate metrology algorithms (like RMS or FFT) against quantization noise and harmonic interference.
Key Features: Harmonic Distortor: Inject 3rd and 5th harmonics to test THD resilience. Accuracy Class Check: Real-time compliance monitoring for Class 0.2, 0.5, and 1.0. Data Export: Generate synthetic 16-bit datasets for offline C/Python analysis. STM32H7 Metrology Lab: FFT & Delta Error Target Accuracy Class Class 0.2 (Utility) Class 0.5 (Industrial) Class 1.0 (Residential) Sample Rate: 4000 Hz ⚠️ METROLOGICAL GUARDRAIL: Below 10x oversampling. THD: 5% Export CSV DMA: READY WAVEFORM (1024-SAMPLE DMA) SPECTRUM (256-BIN WINDOW) TRUE RMS ERROR 0.00% DELTA ERROR (V) 0.000V INIT Looking for the technical deep-dive? Read the full analysis in the ADC Digital Twin Lab Post.
...