Spoold is a free, privacy-first developer toolbox that automatically detects what you paste (JSON, HTML, JWT, curl, etc.) and suggests the right tool. No sign-up required.

Is Spoold free to use?

Yes, Spoold is completely free to use. All tools work client-side in your browser with no data sent to servers.

Is my data safe with Spoold?

Absolutely. All processing happens in your browser. We don't store or transmit your data. Shared links use client-side encryption.

What tools are available?

Spoold includes JSON formatter, JSON diff, HTML preview, JWT decoder, time converter, CSV viewer, URL inspector, QR code generator/scanner, regex tester, Markdown preview, and curl converter.

Can I use keyboard shortcuts?

Yes! Press Cmd/Ctrl+K to search, or use shortcuts like 'jj' for JSON, 'hh' for HTML, 'tt' for Time converter, and more.

Unix Timestamp Converter

Enter timestamp or date

Accepts: Unix timestamp (s/ms), ISO 8601, RFC 2822, or any parseable date string

Timezone

● Current Time

Unix (s)

1766751744

Unix (ms)

1766751744254

ISO 8601

2025-12-26T12:22:24.254Z

⏰

Time Converter

Enter a Unix timestamp or date string to convert between formats and timezones.