Browser-only collection
Date & Number Tools
Translate machine-friendly numeric values into readable representations and catch common unit mistakes without using a server-side converter.
Included utilities
1 focused tool
Why local-first
Useful results without a remote processing service
Convert Unix timestamps between epoch seconds, milliseconds, UTC, ISO 8601, and local date formats in your browser. Input remains in the current tab, and every included utility states its boundaries before you rely on the output.
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