Free Tools & Solutions
The tools, models, and writeups published here are completely free to use.
I provide them to share practical solutions, enable hands-on problem solving, and inspire a first-principles approach to hardware, software, and systems. Whether you are looking for an immediate fix, a lightweight utility, or a foundation to build and innovate upon, these resources are here to help you solve real problems.
PureField: Flatten XFA Forms, Show Field Names and Make Dark PDFs Print-Friendly
Open the XFA forms Chrome, Edge and Preview can't, flatten any fillable PDF, print every field's name on a form, or turn a dark PDF into a toner-saving black-on-white copy. Runs in your browser; nothing is uploaded.
Read →2D Rapid Layout Tool for Flooring/Tiling
A highly-intuitive, rapid, lightweight application that allows you to draw out surfaces in minutes and experiment with different alignments and arrangements of tiles.
Read →WiFi Garage Door Opener, With Real HTTPS and a Proper App
A WiFi- and Bluetooth-controlled garage door opener with a real HTTPS implementation on the ESP32 itself, no companion computer required.
Read →Fridge Mullion Hinge Retrofit
A 3D printable replacement for broken mullion hinge tabs on certain French Door refrigerators.
Read →Keurig Boiler Fix
Fix your existing heater/boiler in a reliable way for the cost of six machine screws, washers, and nuts.
Read →Get It Right the First Time — An AI Recipe Rewriter Prompt
A prompt that restructures messy recipes into a clean, shop-and-cook-friendly format.
Read →No-Caulk Tiling Method for Showers and Tub Surrounds
No caulking, no cracking, no mold, no leaking, and your shower still looks like new 10 years later.
Read →Software-Based Speaker Switch for Any Old 5.1 Receiver
Remap channels with free Linux tools to add premium functionality to any 5.1 receiver with a digital input.
Read →Support Public Utility
If any of these tools or writeups saved you time, solved a problem, or helped you avoid spending money on expensive replacements, consider making a voluntary payment to support future development and open documentation.