OpenPreview
Coming soonA quiet workspace for Markdown, JSON, and text. Read documents, inspect structure, compare changes in a split view, and save edits when you choose.
Harry Chen
I build small, private-by-default apps for iPhone and Mac. Focused tools with local processing at their core. Each app’s privacy page explains its permissions and any optional connections.
Apps
Shotsort
Coming soonFind any screenshot by what's written in it. Shotsort reads the text in every screenshot on your iPhone, sorts them into eight categories, and makes the whole pile searchable — without a single image leaving the device.
A disk-cleanup app for Mac
In developmentShows you exactly what it is about to delete — what each item is, how big it is, how long since you last touched it, and what breaks if it goes. Open source when it ships.
Contact
The fastest way to reach me is email. I read every message.
Email
For help with a specific app, the support page for that app has answers to the common questions first — but email always works.
Code lives at github.com/Harry-Chen-Dev.