{
  "base64": "encode/decode text, mode=encode|decode",
  "hash": "sha256|sha1|md5|sha512 of text",
  "slug": "url-safe slug of text",
  "uuid": "fresh uuid v4",
  "timestamp": "epoch<->ISO8601 converter: text=epoch|ISO|'now' (default now), out=iso|epoch",
  "urlencode": "percent-encode/decode text, mode=encode|decode",
  "tools": "this list"
}