Founder of Hindsight · Building since 2025 · Türkiye
I build browser extensions that make debugging and testing faster, without sending your data anywhere. No backend, no signup, no telemetry.
DevTools you didn't open.
A Chrome and Firefox extension that passively records network requests, console errors, user actions and screenshots in the background. When something breaks, scrub back through what just happened and share a complete bug report as a single HTML replay file anyone can open.
Support & feedback: hindsight@osmanunal.com
View, copy, paste and clear Local Storage, Session Storage and cookies per page, all as JSON.
Turkish-locale test data in one click: TCKN, IBAN, credit cards, addresses and coherent personas, generated locally.
Every product here was built end to end with Claude.
From the first idea and product spec to architecture, code, tests, store listings and this website, I work with Claude and Claude Code as my development partner. It's how one developer ships and maintains several production extensions.
I'm Osman Ünal, founder of Hindsight and a software developer based in Türkiye. I shipped my first browser extension, StorageNinja, in July 2025, followed by Data Helper in January 2026 and Hindsight in May 2026. I build them solo and bootstrapped, and publish them as open source.
My rule for every product: your data stays on your machine unless you choose to share it.
Hindsight support: hindsight@osmanunal.com