diff --git a/archive/r/ruby/base64-encode-decode.rb b/archive/r/ruby/base64-encode-decode.rb
new file mode 100644
index 000000000..f70131c5a
--- /dev/null
+++ b/archive/r/ruby/base64-encode-decode.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require "base64"
+
+USAGE = "Usage: please provide a mode and a string to encode/decode"
+
+mode, input = ARGV
+
+abort(USAGE) if mode.nil? || input.nil? || input.strip.empty?
+
+case mode
+when "encode"
+  puts Base64.strict_encode64(input)
+
+when "decode"
+  begin
+    puts Base64.strict_decode64(input)
+  rescue
+    abort(USAGE)
+  end
+
+else
+  abort(USAGE)
+end