curlhub.sh  —  CLI-first developer utilities
Zero-setup tools you curl straight from the terminal.

Generators
  /uuid      RFC 4122 v4 UUID.
  /pass      High-entropy password / API key / token. CLI: server-side CSPRNG over TLS; web: client-side. Never logged. (https)

Utilities
  /qr        ANSI/UTF-8 QR code from ?data. Nothing stored server-side; use HTTPS or pipe stdin for sensitive payloads (a ?data= value appears in request URLs).

Encoding
  /b64       Base64 encode / decode. (https)
  /hash      MD5 / SHA-1 / SHA-256 / SHA-512 of input. (https)

Developer
  /json      Validate + prettify + colorize JSON. (https)
  /jwt       Decode & pretty-print JWT header/payload. No verify; token never logged. (https)
  /status    Explain an HTTP status code + troubleshooting.
  /cron      Translate a cron expression to English + next run times.
  /ua        Parse the User-Agent you sent (browser / OS / engine / device).
  /headers   Echo the request headers you sent (+ the edge view). Your own request, not a remote audit.
  /hook      Webhook inspector: mint a temp endpoint, inspect incoming HTTP. (https)

Text & Logs
  /md        Render Markdown to colorized ANSI (safe, bounded parser). (https)
  /p         Pastebin: pipe text/logs to a short URL (plaintext in terminal, highlighted on web). (https)

Network
  /cidr      Subnet / CIDR math: range, netmask, broadcast, host count.
  /ip        Your public IP (thin). Geo/ASN live at worldip.io.
  /whois     Domain registration / registrar / dates (public OSINT; rate-limited + cached).

Security
  /ssl       Decode a PEM certificate or CSR you paste (expiry, issuer, SANs, key). No outbound connection. (https)

File Transfer
  /u         Ephemeral file drop (<=100 MB). ANSI QR; auto-purge after 1 download or TTL. (https)

Docs
  /man       Community CLI cheat-sheet wiki (read-only over CLI).

Family
  /port      Port scan of your own IP → hands off to qsa.sh.
  /scan      Vulnerability / threat scan of your IP → hands off to qsa.sh.
  /urlscan   Multi-egress URL scan → hands off to whack.sh.

Details: curl curlhub.sh/help/<tool>   ·   Spec: curl curlhub.sh/spec
Family:  qsa.sh (audit your IP) · whack.sh (scan a URL) · worldip.io (IP intel)