diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 45f8f2b..17355eb 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -14,14 +14,14 @@ jobs:
 
     steps:
 
-    - name: Set up Go 1.13
-      uses: actions/setup-go@v1
+    - name: Set up Go
+      uses: actions/setup-go@v5
       with:
-        go-version: 1.13
+        go-version: 1.22
       id: go
 
     - name: Check out code into the Go module directory
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Build
       run: |
@@ -38,7 +38,7 @@ jobs:
 
     - name: Publish
       if: startsWith(github.ref, 'refs/tags/')
-      uses: softprops/action-gh-release@v1
+      uses: softprops/action-gh-release@v2
       with:
         files: build/*.tar.gz
       env:
diff --git a/cmd/cmd_util.go b/cmd/cmd_util.go
index a78f1d5..8a2a786 100644
--- a/cmd/cmd_util.go
+++ b/cmd/cmd_util.go
@@ -41,3 +41,11 @@ func Contains(s []string, str string) bool {
 	}
 	return false
 }
+
+// CheckArg will check if an argument is empty and print error message
+func CheckArg(arg string, name string) {
+	if arg == "" {
+		fmt.Fprintf(os.Stderr, "%s is required\n", name)
+		os.Exit(1)
+	}
+}
diff --git a/cmd/extract.go b/cmd/extract.go
new file mode 100644
index 0000000..f5b9f37
--- /dev/null
+++ b/cmd/extract.go
@@ -0,0 +1,89 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/cheggaaa/pb/v3"
+	"github.com/mamezou-tech/sbgraph/pkg/file"
+	"github.com/mamezou-tech/sbgraph/pkg/types"
+	"github.com/spf13/cobra"
+)
+
+type pageSimple struct {
+	ID		string `json:"id"`
+	Title	string `json:"title"`
+	Lines	[]string `json:"lines"`
+}
+
+// extractCmd represents the extract command
+var extractCmd = &cobra.Command{
+	Use:   "extract",
+	Short: "Extract from downloaded JSON files",
+	Long: LongUsage(`Extract from downloaded JSON files that matches passed tag.
+
+  	sbgraph extract -t tagname -o outputdir`),
+	Run: func(cmd *cobra.Command, args []string) {
+		doExtract(cmd);
+	},
+}
+
+func init() {
+	extractCmd.PersistentFlags().StringP("tag", "t", "", "Extract pages with the specified tag.")
+	extractCmd.PersistentFlags().StringP("suffix", "s", "", "suffix for output directory")
+	rootCmd.AddCommand(extractCmd)
+}
+
+func doExtract(cmd *cobra.Command) {
+	projectName := config.CurrentProject
+	CheckProject(projectName)
+	tag, _ := cmd.PersistentFlags().GetString("tag")
+	suffix, _ := cmd.PersistentFlags().GetString("suffix")
+	CheckArg(tag, "tag");
+	CheckArg(suffix, "suffix");
+
+	fmt.Printf("Extract files : %s, tag : %s\n", projectName, tag)
+	var proj types.Project
+	err := proj.ReadFrom(projectName, config.WorkDir)
+	CheckErr(err)
+
+	bar := pb.StartNew(proj.Count)
+
+	outputDir := config.WorkDir + "/" + projectName + "-" + suffix
+	file.CreateDir(outputDir)
+	for _, idx := range proj.Pages {
+		var page types.Page
+		err := page.ReadFrom(projectName, idx.ID, config.WorkDir)
+		CheckErr(err)
+		result := containsTag(toLines(&page), tag)
+		if result {
+			var simplePage pageSimple
+			simplePage.ID = page.ID
+			simplePage.Title = page.Title
+			simplePage.Lines = toLines(&page)
+			data, _ := json.Marshal(simplePage)
+			err = file.WriteBytes(data, simplePage.ID+".json", outputDir)
+			CheckErr(err)
+		}
+		bar.Increment()
+	}
+	bar.Finish()
+}
+
+func toLines(page *types.Page) []string {
+	lines := []string{}
+	for _, line := range page.Lines {
+		lines = append(lines, line.Text)
+	}
+	return lines
+}
+
+func containsTag(lines []string, tag string) bool {
+	for _, line := range lines {
+		if strings.Contains(line, tag) {
+			return true
+		}
+	}
+	return false
+}
diff --git a/go.mod b/go.mod
index 7baa570..c0255c0 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/mamezou-tech/sbgraph
 
-go 1.13
+go 1.22
 
 require (
 	github.com/MakeNowJust/heredoc/v2 v2.0.1
@@ -10,3 +10,26 @@ require (
 	github.com/spf13/cobra v0.0.6
 	github.com/spf13/viper v1.6.2
 )
+
+require (
+	github.com/VividCortex/ewma v1.1.1 // indirect
+	github.com/fatih/color v1.7.0 // indirect
+	github.com/fsnotify/fsnotify v1.4.7 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/magiconair/properties v1.8.1 // indirect
+	github.com/mattn/go-colorable v0.1.2 // indirect
+	github.com/mattn/go-isatty v0.0.10 // indirect
+	github.com/mattn/go-runewidth v0.0.7 // indirect
+	github.com/mitchellh/mapstructure v1.1.2 // indirect
+	github.com/pelletier/go-toml v1.2.0 // indirect
+	github.com/spf13/afero v1.1.2 // indirect
+	github.com/spf13/cast v1.3.0 // indirect
+	github.com/spf13/jwalterweatherman v1.0.0 // indirect
+	github.com/spf13/pflag v1.0.3 // indirect
+	github.com/subosito/gotenv v1.2.0 // indirect
+	golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9 // indirect
+	golang.org/x/text v0.3.0 // indirect
+	gopkg.in/ini.v1 v1.51.0 // indirect
+	gopkg.in/yaml.v2 v2.2.4 // indirect
+)
diff --git a/go.sum b/go.sum
index 9febb93..8ccb13f 100644
--- a/go.sum
+++ b/go.sum
@@ -152,7 +152,6 @@ golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/pkg/types/page.go b/pkg/types/page.go
index f0f6ceb..a519448 100644
--- a/pkg/types/page.go
+++ b/pkg/types/page.go
@@ -19,7 +19,14 @@ type Page struct {
 	Collaborators []User   `json:"collaborators"`
 	Image         string   `json:"image"`
 	Tags          []string `json:"links"`
-	Related       struct {
+	Lines         []struct {
+		ID      string `json:"id"`
+		Text    string `json:"text"`
+		UserID  string `json:"userId"`
+		Created int32  `json:"created"`
+		Updated int32  `json:"updated"`
+	} `json:"lines"`
+	Related struct {
 		Links []struct {
 			ID    string `json:"id"`
 			Title string `json:"title"`