Convert Unix seconds, milliseconds, microseconds, nanoseconds and date strings into ISO, UTC, local time, timezone views and batch CSV.

Generate UUID v4 and UUID v7 values locally, validate identifiers, inspect version and variant bits, export batches and understand collision ...

Generate MD5 legacy checksums, SHA hashes, file digests and HMAC values locally, compare expected checksums and understand safe hashing use.

Encode URL components, decode URLs, parse query parameters, detect tracking fields, inspect nested redirects and copy clean URLs for debugging.

Encode and decode Base64 locally, handle Base64URL and padding, inspect bytes, read small files, generate data URIs and review security ...

Format JSON locally, validate syntax, query nested values, explore paths, compare payloads, inspect structure and copy or download the output ...

Run a reverse DNS lookup for an IP address or hostname, inspect PTR records, check forward match consistency and understand ...

Look up WHOIS data for a domain, parse registrar, expiry date, nameservers, status codes, DNSSEC, renewal risk and DNS context.

Check TCP ports for a host or public IP, use service profiles, read exposure notes, review common ports and copy ...

Run repeated website status checks, compare final responses with first-response headers and redirect path, and build an availability report for ...