Browser-based developer utilities

Format JSON and convert timestamps without sending data away.

A compact workspace for everyday JSON cleanup and Unix time conversion. Processing runs locally in your browser.

JSON formatter

JSON Tools

Ready

Input

0 bytes 1 line 0 depth

Unix time converter

Unix timestamp ISO 8601 date

UTC -

Local time -

Seconds -

Milliseconds -

Quick reference

{"id": 101, "enabled": true}

[{"name": "alpha"}, {"name": "beta"}]

1797206400

2026-12-14T00:00:00.000Z