diff --git a/url/encoding.go b/url/encoding.go
new file mode 100644
index 0000000..48023d7
--- /dev/null
+++ b/url/encoding.go
@@ -0,0 +1,10 @@
+package urlutil
+
+import (
+	"github.com/projectdiscovery/utils/env"
+)
+
+// SpaceEncoding determines how spaces are encoded in URLs via external environment variable:
+// - When empty (""), spaces are encoded as "+"
+// - When set to "percent", spaces are encoded as "%20"
+var SpaceEncoding = env.GetEnvOrDefault("SPACE_ENCODING", "")
diff --git a/url/rawparam.go b/url/rawparam.go
index 741715e..9007daf 100644
--- a/url/rawparam.go
+++ b/url/rawparam.go
@@ -175,9 +175,15 @@ func URLEncodeWithEscapes(data string, charset ...rune) string {
 			buff.WriteRune('%')
 			buff.WriteString(getasciihex(r)) // 2 digit hex
 		case r == ' ':
-			// prefer using + when space
-			buff.WriteRune('+')
-			// case
+			// use configuration to determine space encoding
+			switch SpaceEncoding {
+			case "percent":
+				buff.WriteRune('%')
+				buff.WriteRune('2')
+				buff.WriteRune('0')
+			default:
+				buff.WriteRune('+')
+			}
 		case r < rune(127):
 			if _, ok := mustescape[r]; ok {
 				// reserved char must escape