UUID Studio

UUID Studio

Timestamp Converter

Unix ↔ ISO ↔ local time.

  • 🔒 No data stored or uploaded
  • ⚡ 100% client-side
  • 🆓 Free, no account
Click Convert when ready

Override only when Auto cannot parse your paste. Changing this loads a matching sample into Input — click Convert to run. Use Load sample to cycle every format example.

All conversions

Read-only representations of the same 16 bytes. Every textual form is listed here, not in “Prefer format”.

Paste two values: if both sides are valid JSON, a structural diff appears; otherwise UUID / bytes are compared when both decode to the same format.

A
B

Create or edit JSON here (syntax colors), then format, validate, or convert - same as MongoDB $binary UUID blobs on the Convert tab once detected.

New document

Hash, HMAC, AES-GCM/CBC + RSA-OAEP, codecs, JWT decoding, UUID v4, and secure random - all client-side. JWTs use Base64URL (three segments), not a single MIME Base64 block - use Decode JWT below, not raw Base64 decode.

Examples

  • Unix seconds 
    1700000000

About Timestamp Converter

Unix timestamps come in seconds or milliseconds depending on which API you're looking at, and mixing the two up silently produces a date decades in the wrong direction.

Paste an epoch value (seconds or milliseconds) or an ISO-8601 string and convert between them, with relative time included - handy for quickly sanity-checking whether a timestamp in a log or database row is actually 'just now' or from 1970.