Small, sharp tools
that are probably fine.
An independent software lab building focused apps for developers and everyday computer people. No sign-ups, no bloat, no drama.
Things we've shipped
WindowsSysInfo Pro
Free Windows diagnostics with developer tools. Ranks what's actually slowing your PC down and tells you what to try.
- Slowdown diagnosis
- Dev & network doctor
- MIT licensed
Web · Windows · AndroidFileDrop
Move files between devices with a six-digit code. No account, nothing to install on the web, files deleted after transfer.
- No sign-up
- Cross-platform
- Auto-delete
Web · CLI · Open sourceWeb Scanner
Map every publicly discoverable subdomain and URL of a website — from passive recon to a full crawl.
- Passive / standard / full
- Source labeling
- MIT licensed
Software should solve the problem,
not become one.
Probably Fine Labs builds focused tools for everyday annoyances — a slow PC, a file stuck on the wrong device, a website you need to understand. Each one does its job without accounts, trackers or upsells.
The lab brings these products under one roof so they can share what works, grow together and keep getting better.
More about the labNo sign-up walls
If it can work without an account, it does.
Do one thing well
Focused tools over feature soup.
Your data stays yours
Local-first, no telemetry, privacy by default.
Got an idea, bug, or hello?
Feedback shapes what we build next.