Developer utilities.
A small bundle of the conversions you reach for every day: Unix timestamp to ISO date, Base64 encode and decode, a UUID v4 generator and an E.164 phone-number validator. Everything runs locally — nothing leaves your device.
A Unix timestamp is the number of seconds since 1 January 1970 UTC. Conversions are shown in UTC and update as you type — no automatic "now" is inserted.
The short answer
What do these developer utilities do?
They cover four small jobs that come up constantly when working with APIs and messaging: turning a Unix timestamp into a human-readable UTC date and back, encoding or decoding Base64, generating a collision-resistant UUID v4 for idempotency keys or record IDs, and checking that a phone number is valid E.164 before you submit it.
Seconds since 1970-01-01 UTC, converted to and from ISO 8601.
Reversible text encoding for moving data through text-only channels — not encryption.
128-bit identifier with 122 random bits from a secure source.
ITU international number format: + country code and national number, up to 15 digits.
Frequently asked questions
What is a Unix timestamp?
A Unix timestamp is the number of seconds that have elapsed since 1 January 1970 at 00:00:00 UTC, the Unix epoch. It is a compact, timezone-independent way to represent an instant, which is why APIs and databases use it. This tool converts it to and from an ISO 8601 date string in UTC.
Is Base64 encoding the same as encryption?
No. Base64 is a reversible encoding that represents binary or text data using 64 printable ASCII characters. Anyone can decode it, so it provides no confidentiality — it is used to move data safely through text-only channels, not to protect secrets.
What is a UUID v4 and is it unique?
A UUID v4 is a 128-bit identifier with 122 random bits, generated here with the browser's cryptographically secure random source. Collisions are astronomically unlikely, so v4 UUIDs are treated as globally unique identifiers for records, requests and idempotency keys.
What is E.164 phone number format?
E.164 is the ITU standard for international phone numbers: a leading plus sign, a country calling code and the national number, with no spaces or punctuation, up to 15 digits total — for example +14155550123. Messaging APIs expect destinations in E.164 so numbers route correctly worldwide.
Do these utilities send my data anywhere?
No. Every conversion runs in your browser with JavaScript. Timestamps, text, Base64 payloads, generated UUIDs and phone numbers are processed locally and never transmitted to BroadNet or any server.
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