A neighborhood software shop · Est. 2025
Mendelsohn Labs is a one-person studio aiming to bring the ethics and care you expect from a local small business to an industry dominated by mega corporations. I produce bespoke, small-scale projects that treat users with intention and respect.
Tools that fight for working people.
39 calculators and plain-language guides — paychecks, medical bills, eviction responses, debt, and more. All client-side. No accounts, no tracking, nothing ever leaves your device.
A distraction-free reader for chord sheets.
A browser extension that cleans up Ultimate Guitar, E-Chords, Cifra Club, and more. Transpose to any key, auto-scroll hands-free, six color themes, a vertical or paged layout. Works on desktop, and on Firefox for Android.
In progress
Simple, browser-based tabletop gaming with friends. Join code session management. Modular game-agnostic architecture for easy expansion.
Twenty-one games wired up · online rooms under active construction
In progress
A shopping app that helps you achieve your style goals while spending less. Template based outfit system uses what you already have, so you don't waste money on new clothes you don't need.
iOS and Android app in private testing · stylebook and smart picks under active construction
In progress
Web-based sheet music toolkit for choirs, barbershop quartets, and a cappella groups. Transcribe and generate learning tracks from any sheet music PDF.
Engine in development · open source
I'm Andrew Mendelsohn, a software engineer in Seattle. My goal is to build software at a smaller, more human scale — projects one person can make well and stand behind.
For now, my work is funded by donations. If something here has saved you time, money, or a headache, a tip on Ko-fi helps me keep the next project on the workbench moving.
Support me on Ko-fiOpen to outside work — contract, full-time, or volunteer.