2026-05-22 · 5 min read · Rahul Chitturi
- flashman
- privacy
Flashman started from a simple frustration: pasting a JWT into a random online decoder and wondering where the token went. For side projects that is annoying. For automotive calibration data or healthcare integrations it is unacceptable.
No upload by default
Tool logic runs in JavaScript on your device. We do not operate a backend that ingests your JSON, tokens, or MATLAB exports. That architectural choice limits what we can build—but it is the right default for trust.
Sustainable through ads
Free tools need hosting and maintenance. We use optional, consent-gated advertising rather than selling data or adding paywalls to basic utilities.
What is next
More guides, more tools, better search—and always the same privacy model. If a feature requires a server, we will say so loudly before you paste anything.