Epochsy (Epoch Converter)

About

Epochsy is a lightweight epoch timestamp tool built for developers. It lives in your toolbar as a simple popup — no new tabs, no clutter, no distractions.

WHAT IT DOES

• Convert — Paste an epoch (seconds or milliseconds) or a date string. Auto-detects the format and instantly shows local time, UTC, epoch seconds, and epoch milliseconds.

• Live Clock — See the current Unix timestamp updating in real time. Seconds, milliseconds, local, and UTC — all at a glance.

• Bounds — Pick a date and period (Day, Month, or Year) to get the exact start and end timestamps. Great for API queries, log filtering, and database ranges.

• Duration — Enter a number of seconds to break it down into years, months, days, hours, minutes, and seconds.

• Info — Quick reference on what epoch time is and why it's used.

WHY EPOCHSY?

→ Popup-only — never opens a new browser tab like other converters
→ Zero permissions — no access to your tabs, history, or data
→ Fully offline — no network requests, ever
→ One-click copy on every value
→ Auto dark mode
→ Remembers your last used mode
→ Keyboard navigable

Built with vanilla JavaScript, no frameworks, ~11KB total. Fast, private, and focused.

Perfect for backend engineers, frontend developers, QA testers, DevOps, and anyone who works with Unix timestamps daily.