diff --git a/.gitignore b/.gitignore
index 937e8d8..c60f928 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,6 @@
 dist
 template.json
 .idea
-test
\ No newline at end of file
+test
+sub2sing-box.json
+config.json
\ No newline at end of file
diff --git a/api/handler/convert.go b/api/handler/convert.go
index 8e7d970..5fbdaf9 100644
--- a/api/handler/convert.go
+++ b/api/handler/convert.go
@@ -2,8 +2,8 @@ package handler
 
 import (
 	"encoding/json"
-	"sub2sing-box/api/model"
 	"sub2sing-box/common"
+	"sub2sing-box/model"
 	"sub2sing-box/util"
 
 	"github.com/gin-gonic/gin"
diff --git a/cmd/convert.go b/cmd/convert.go
index 9bf8bf1..35a1ae7 100644
--- a/cmd/convert.go
+++ b/cmd/convert.go
@@ -1,35 +1,42 @@
 package cmd
 
 import (
+	"encoding/json"
 	"fmt"
 	"os"
+	"path/filepath"
 	"sub2sing-box/common"
+	"sub2sing-box/model"
 
 	"github.com/spf13/cobra"
 )
 
-var subscriptions []string
-var proxies []string
-var template string
-var output string
-var delete string
-var rename map[string]string
-var group bool
-var groupType string
-var sortKey string
-var sortType string
+var (
+	subscriptions []string
+	proxies       []string
+	template      string
+	output        string
+	delete        string
+	rename        map[string]string
+	group         bool
+	groupType     string
+	sortKey       string
+	sortType      string
+	config        string
+)
 
 func init() {
-	convertCmd.Flags().StringSliceVarP(&subscriptions, "subscription", "s", []string{}, "subscription urls")
-	convertCmd.Flags().StringSliceVarP(&proxies, "proxy", "p", []string{}, "common proxies")
+	convertCmd.Flags().StringSliceVarP(&subscriptions, "subscription", "s", nil, "subscription URLs")
+	convertCmd.Flags().StringSliceVarP(&proxies, "proxy", "p", nil, "common proxies")
 	convertCmd.Flags().StringVarP(&template, "template", "t", "", "template file path")
 	convertCmd.Flags().StringVarP(&output, "output", "o", "", "output file path")
 	convertCmd.Flags().StringVarP(&delete, "delete", "d", "", "delete proxy with regex")
-	convertCmd.Flags().StringToStringVarP(&rename, "rename", "r", map[string]string{}, "rename proxy with regex")
+	convertCmd.Flags().StringToStringVarP(&rename, "rename", "r", nil, "rename proxy with regex")
 	convertCmd.Flags().BoolVarP(&group, "group", "g", false, "group proxies by country")
 	convertCmd.Flags().StringVarP(&groupType, "group-type", "G", "selector", "group type, selector or urltest")
 	convertCmd.Flags().StringVarP(&sortKey, "sort", "S", "tag", "sort key, tag or num")
 	convertCmd.Flags().StringVarP(&sortType, "sort-type", "T", "asc", "sort type, asc or desc")
+	convertCmd.Flags().StringVarP(&config, "config", "c", "", "config file path")
 	RootCmd.AddCommand(convertCmd)
 }
 
@@ -37,32 +44,95 @@ var convertCmd = &cobra.Command{
 	Use:   "convert",
 	Long:  "Convert common proxy to sing-box proxy",
 	Short: "Convert common proxy to sing-box proxy",
-	Run: func(cmd *cobra.Command, args []string) {
-		result := ""
-		var err error
-		result, err = common.Convert(
-			subscriptions,
-			proxies,
-			template,
-			delete,
-			rename,
-			group,
-			groupType,
-			sortKey,
-			sortType,
-		)
+	Run:   convertRun,
+}
+
+func convertRun(cmd *cobra.Command, args []string) {
+	loadConfig()
+	result, err := common.Convert(
+		subscriptions,
+		proxies,
+		template,
+		delete,
+		rename,
+		group,
+		groupType,
+		sortKey,
+		sortType,
+	)
+	if err != nil {
+		fmt.Println("Conversion error:", err)
+		return
+	}
+	if output != "" {
+		err = os.WriteFile(output, []byte(result), 0666)
 		if err != nil {
-			fmt.Println(err)
+			fmt.Println("Error writing to file:", err)
 			return
 		}
-		if output != "" {
-			err = os.WriteFile(output, []byte(result), 0666)
-			if err != nil {
-				fmt.Println(err)
+		fmt.Println("Config has been saved in:", output)
+	} else {
+		fmt.Println(result)
+	}
+}
+
+func loadConfig() {
+	if config == "" {
+		if wd, err := os.Getwd(); err == nil {
+			config = filepath.Join(wd, "sub2sing-box.json")
+			if _, err := os.Stat(config); os.IsNotExist(err) {
 				return
 			}
 		} else {
-			fmt.Println(string(result))
+			fmt.Println("Error getting working directory:", err)
+			return
 		}
-	},
+	}
+
+	bytes, err := os.ReadFile(config)
+	if err != nil {
+		fmt.Println("Error reading config file:", err)
+		return
+	}
+
+	var cfg model.ConvertRequest
+	if err := json.Unmarshal(bytes, &cfg); err != nil {
+		fmt.Println("Error parsing config JSON:", err)
+		return
+	}
+
+	mergeConfig(cfg)
+}
+
+func mergeConfig(cfg model.ConvertRequest) {
+	if len(subscriptions) == 0 {
+		subscriptions = cfg.Subscriptions
+	}
+	if len(proxies) == 0 {
+		proxies = cfg.Proxies
+	}
+	if template == "" {
+		template = cfg.Template
+	}
+	if delete == "" {
+		delete = cfg.Delete
+	}
+	if len(rename) == 0 {
+		rename = cfg.Rename
+	}
+	if !group {
+		group = cfg.Group
+	}
+	if groupType == "" {
+		groupType = cfg.GroupType
+	}
+	if sortKey == "" {
+		sortKey = cfg.SortKey
+	}
+	if sortType == "" {
+		sortType = cfg.SortType
+	}
+	if output == "" {
+		output = cfg.Output
+	}
 }
diff --git a/common/convert.go b/common/convert.go
index d243dfe..b763c89 100644
--- a/common/convert.go
+++ b/common/convert.go
@@ -176,8 +176,9 @@ func MergeTemplate(outbounds []model.Outbound, template string) (string, error)
 		}
 	} else {
 		if !strings.Contains(template, string(filepath.Separator)) {
-			if _, err := os.Stat(template); os.IsNotExist(err) {
-				template = filepath.Join("templates", template)
+			path := filepath.Join("templates", template)
+			if _, err := os.Stat(path); err == nil {
+				template = path
 			}
 		}
 		config, err = ReadTemplate(template)
diff --git a/api/model/convert.go b/model/convert.go
similarity index 92%
rename from api/model/convert.go
rename to model/convert.go
index 58e51fe..081ccce 100644
--- a/api/model/convert.go
+++ b/model/convert.go
@@ -10,4 +10,5 @@ type ConvertRequest struct {
 	GroupType     string            `form:"group-type" json:"group-type"`
 	SortKey       string            `form:"sort" json:"sort"`
 	SortType      string            `form:"sort-type" json:"sort-type"`
+	Output        string            `json:"output"`
 }
diff --git a/templates/tun-fakeip.json b/templates/tun-fakeip.json
index d5f57e5..a4a4047 100644
--- a/templates/tun-fakeip.json
+++ b/templates/tun-fakeip.json
@@ -191,9 +191,7 @@
       "sniff_override_destination": true,
       "strict_route": true,
       "type": "tun",
-      "stack": "mixed",
-      "inet4_route_exclude_address": ["100.64.0.0/10"],
-      "inet6_route_exclude_address": ["fd7a:115c:a1e0::/48"]
+      "stack": "mixed"
     }
   ],
   "outbounds": [
diff --git a/util/fetch.go b/util/fetch.go
index c2cd15c..89f9eb1 100644
--- a/util/fetch.go
+++ b/util/fetch.go
@@ -8,13 +8,15 @@ import (
 func Fetch(url string, maxRetryTimes int) (string, error) {
 	retryTime := 0
 	var err error
+	var resp *http.Response
 	for retryTime < maxRetryTimes {
-		resp, err := http.Get(url)
+		resp, err = http.Get(url)
 		if err != nil {
 			retryTime++
 			continue
 		}
-		data, err := io.ReadAll(resp.Body)
+		var data []byte
+		data, err = io.ReadAll(resp.Body)
 		if err != nil {
 			retryTime++
 			continue