diff --git a/arrutil/arrutil.go b/arrutil/arrutil.go
index 70ce087d5..583435696 100644
--- a/arrutil/arrutil.go
+++ b/arrutil/arrutil.go
@@ -2,82 +2,9 @@
 package arrutil
 
 import (
-	"strings"
-
-	"github.com/gookit/goutil/comdef"
 	"github.com/gookit/goutil/mathutil"
 )
 
-// StringsRemove value form a string slice
-func StringsRemove(ss []string, s string) []string {
-	return StringsFilter(ss, func(el string) bool {
-		return s != el
-	})
-}
-
-// StringsFilter given strings, default will filter emtpy string.
-//
-// Usage:
-//
-//	// output: [a, b]
-//	ss := arrutil.StringsFilter([]string{"a", "", "b", ""})
-func StringsFilter(ss []string, filter ...comdef.StringMatchFunc) []string {
-	var fn comdef.StringMatchFunc
-	if len(filter) > 0 && filter[0] != nil {
-		fn = filter[0]
-	} else {
-		fn = func(s string) bool {
-			return s != ""
-		}
-	}
-
-	ns := make([]string, 0, len(ss))
-	for _, s := range ss {
-		if fn(s) {
-			ns = append(ns, s)
-		}
-	}
-	return ns
-}
-
-// StringsMap handle each string item, map to new strings
-func StringsMap(ss []string, mapFn func(s string) string) []string {
-	ns := make([]string, 0, len(ss))
-	for _, s := range ss {
-		ns = append(ns, mapFn(s))
-	}
-	return ns
-}
-
-// TrimStrings trim string slice item.
-//
-// Usage:
-//
-//	// output: [a, b, c]
-//	ss := arrutil.TrimStrings([]string{",a", "b.", ",.c,"}, ",.")
-func TrimStrings(ss []string, cutSet ...string) []string {
-	cutSetLn := len(cutSet)
-	hasCutSet := cutSetLn > 0 && cutSet[0] != ""
-
-	var trimSet string
-	if hasCutSet {
-		trimSet = cutSet[0]
-	}
-	if cutSetLn > 1 {
-		trimSet = strings.Join(cutSet, "")
-	}
-
-	ns := make([]string, 0, len(ss))
-	for _, str := range ss {
-		if hasCutSet {
-			ns = append(ns, strings.Trim(str, trimSet))
-		} else {
-			ns = append(ns, strings.TrimSpace(str))
-		}
-	}
-	return ns
-}
-
 // GetRandomOne get random element from an array/slice
 func GetRandomOne[T any](arr []T) T { return RandomOne(arr) }
 
diff --git a/arrutil/arrutil_test.go b/arrutil/arrutil_test.go
index 57465f7b2..3c235cfd0 100644
--- a/arrutil/arrutil_test.go
+++ b/arrutil/arrutil_test.go
@@ -1,50 +1,12 @@
 package arrutil_test
 
 import (
-	"fmt"
 	"testing"
 
 	"github.com/gookit/goutil/arrutil"
 	"github.com/gookit/goutil/testutil/assert"
 )
 
-func TestStringsRemove(t *testing.T) {
-	ss := []string{"a", "b", "c"}
-	ns := arrutil.StringsRemove(ss, "b")
-
-	assert.Contains(t, ns, "a")
-	assert.NotContains(t, ns, "b")
-	assert.Len(t, ns, 2)
-}
-
-func TestStringsFilter(t *testing.T) {
-	is := assert.New(t)
-
-	ss := arrutil.StringsFilter([]string{"a", "", "b", ""})
-	is.Eq([]string{"a", "b"}, ss)
-}
-
-func TestStringsMap(t *testing.T) {
-	is := assert.New(t)
-
-	ss := arrutil.StringsMap([]string{"a", "b", "c"}, func(s string) string {
-		return s + "1"
-	})
-	is.Eq([]string{"a1", "b1", "c1"}, ss)
-}
-
-func TestTrimStrings(t *testing.T) {
-	is := assert.New(t)
-
-	// TrimStrings
-	ss := arrutil.TrimStrings([]string{" a", "b ", " c "})
-	is.Eq("[a b c]", fmt.Sprint(ss))
-	ss = arrutil.TrimStrings([]string{",a", "b.", ",.c,"}, ",.")
-	is.Eq("[a b c]", fmt.Sprint(ss))
-	ss = arrutil.TrimStrings([]string{",a", "b.", ",.c,"}, ",", ".")
-	is.Eq("[a b c]", fmt.Sprint(ss))
-}
-
 func TestGetRandomOne(t *testing.T) {
 	is := assert.New(t)
 	// int slice
diff --git a/arrutil/strings.go b/arrutil/strings.go
index ef3fa6cfd..55968a41f 100644
--- a/arrutil/strings.go
+++ b/arrutil/strings.go
@@ -1,6 +1,11 @@
 package arrutil
 
-import "strconv"
+import (
+	"strconv"
+	"strings"
+
+	"github.com/gookit/goutil/comdef"
+)
 
 // StringsToAnys convert []string to []any
 func StringsToAnys(ss []string) []any {
@@ -39,3 +44,94 @@ func StringsTryInts(ss []string) (ints []int, err error) {
 	}
 	return
 }
+
+// StringsUnique unique string slice
+func StringsUnique(ss []string) []string {
+	var unique []string
+	for _, s := range ss {
+		if !StringsContains(unique, s) {
+			unique = append(unique, s)
+		}
+	}
+	return unique
+}
+
+// StringsContains check string slice contains string
+func StringsContains(ss []string, s string) bool {
+	for _, v := range ss {
+		if v == s {
+			return true
+		}
+	}
+	return false
+}
+
+// StringsRemove value form a string slice
+func StringsRemove(ss []string, s string) []string {
+	return StringsFilter(ss, func(el string) bool {
+		return s != el
+	})
+}
+
+// StringsFilter given strings, default will filter emtpy string.
+//
+// Usage:
+//
+//	// output: [a, b]
+//	ss := arrutil.StringsFilter([]string{"a", "", "b", ""})
+func StringsFilter(ss []string, filter ...comdef.StringMatchFunc) []string {
+	var fn comdef.StringMatchFunc
+	if len(filter) > 0 && filter[0] != nil {
+		fn = filter[0]
+	} else {
+		fn = func(s string) bool {
+			return s != ""
+		}
+	}
+
+	ns := make([]string, 0, len(ss))
+	for _, s := range ss {
+		if fn(s) {
+			ns = append(ns, s)
+		}
+	}
+	return ns
+}
+
+// StringsMap handle each string item, map to new strings
+func StringsMap(ss []string, mapFn func(s string) string) []string {
+	ns := make([]string, 0, len(ss))
+	for _, s := range ss {
+		ns = append(ns, mapFn(s))
+	}
+	return ns
+}
+
+// TrimStrings trim string slice item.
+//
+// Usage:
+//
+//	// output: [a, b, c]
+//	ss := arrutil.TrimStrings([]string{",a", "b.", ",.c,"}, ",.")
+func TrimStrings(ss []string, cutSet ...string) []string {
+	cutSetLn := len(cutSet)
+	hasCutSet := cutSetLn > 0 && cutSet[0] != ""
+
+	var trimSet string
+	if hasCutSet {
+		trimSet = cutSet[0]
+	}
+	if cutSetLn > 1 {
+		trimSet = strings.Join(cutSet, "")
+	}
+
+	ns := make([]string, 0, len(ss))
+	for _, str := range ss {
+		if hasCutSet {
+			ns = append(ns, strings.Trim(str, trimSet))
+		} else {
+			ns = append(ns, strings.TrimSpace(str))
+		}
+	}
+	return ns
+}
diff --git a/arrutil/strings_test.go b/arrutil/strings_test.go
index 20db707f1..9dff3384b 100644
--- a/arrutil/strings_test.go
+++ b/arrutil/strings_test.go
@@ -29,3 +29,40 @@ func TestStringsToInts(t *testing.T) {
 	is.Eq("[]int{1, 2}", fmt.Sprintf("%#v", ints))
 	is.Nil(arrutil.StringsAsInts([]string{"abc"}))
 }
+
+func TestStringsRemove(t *testing.T) {
+	ss := []string{"a", "b", "c"}
+	ns := arrutil.StringsRemove(ss, "b")
+
+	assert.Contains(t, ns, "a")
+	assert.NotContains(t, ns, "b")
+	assert.Len(t, ns, 2)
+}
+
+func TestStringsFilter(t *testing.T) {
+	is := assert.New(t)
+
+	ss := arrutil.StringsFilter([]string{"a", "", "b", ""})
+	is.Eq([]string{"a", "b"}, ss)
+}
+
+func TestStringsMap(t *testing.T) {
+	is := assert.New(t)
+
+	ss := arrutil.StringsMap([]string{"a", "b", "c"}, func(s string) string {
+		return s + "1"
+	})
+	is.Eq([]string{"a1", "b1", "c1"}, ss)
+}
+
+func TestTrimStrings(t *testing.T) {
+	is := assert.New(t)
+
+	// TrimStrings
+	ss := arrutil.TrimStrings([]string{" a", "b ", " c "})
+	is.Eq("[a b c]", fmt.Sprint(ss))
+	ss = arrutil.TrimStrings([]string{",a", "b.", ",.c,"}, ",.")
+	is.Eq("[a b c]", fmt.Sprint(ss))
+	ss = arrutil.TrimStrings([]string{",a", "b.", ",.c,"}, ",", ".")
+	is.Eq("[a b c]", fmt.Sprint(ss))
+}
diff --git a/encodes/hashutil/hashutil_test.go b/encodes/hashutil/hashutil_test.go
index ef4a0fdc7..e88aab183 100644
--- a/encodes/hashutil/hashutil_test.go
+++ b/encodes/hashutil/hashutil_test.go
@@ -3,7 +3,7 @@ package hashutil_test
 import (
 	"testing"
 
-	"github.com/gookit/goutil/encodx/hashutil"
+	"github.com/gookit/goutil/encodes/hashutil"
 	"github.com/gookit/goutil/testutil/assert"
 )
 
diff --git a/strutil/random.go b/strutil/random.go
index 56410baf0..7a00141ad 100644
--- a/strutil/random.go
+++ b/strutil/random.go
@@ -5,6 +5,7 @@ import (
 	"time"
 
 	"github.com/gookit/goutil/byteutil"
+	"github.com/gookit/goutil/encodes"
 )
 
 // some consts string chars