diff --git a/custom/conf/app.example.ini b/custom/conf/app.example.ini
index 8e63ceee12..2162ed5a87 100644
--- a/custom/conf/app.example.ini
+++ b/custom/conf/app.example.ini
@@ -2555,9 +2555,8 @@ LEVEL = Info
 ; [actions]
 ;; Enable/Disable actions capabilities
 ;ENABLED = false
-;;
-;; Default address to get action plugins, e.g. the default value means downloading from "https://gitea.com/actions/checkout" for "uses: actions/checkout@v3"
-;DEFAULT_ACTIONS_URL = https://gitea.com
+;; Default address to get action plugins, e.g. the default value means downloading from "https://code.forgejo.org/actions/checkout" for "uses: actions/checkout@v3"
+;DEFAULT_ACTIONS_URL = https://code.forgejo.org
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
diff --git a/modules/setting/actions.go b/modules/setting/actions.go
index 1c8075cd6c..ad09a93d8f 100644
--- a/modules/setting/actions.go
+++ b/modules/setting/actions.go
@@ -5,6 +5,7 @@ package setting
 
 import (
 	"fmt"
+	"strings"
 )
 
 // Actions settings
@@ -13,13 +14,32 @@ var (
 		LogStorage        *Storage // how the created logs should be stored
 		ArtifactStorage   *Storage // how the created artifacts should be stored
 		Enabled           bool
-		DefaultActionsURL string `ini:"DEFAULT_ACTIONS_URL"`
+		DefaultActionsURL defaultActionsURL `ini:"DEFAULT_ACTIONS_URL"`
 	}{
 		Enabled:           false,
-		DefaultActionsURL: "https://gitea.com",
+		DefaultActionsURL: defaultActionsURLForgejo,
 	}
 )
 
+type defaultActionsURL string
+
+func (url defaultActionsURL) URL() string {
+	switch url {
+	case defaultActionsURLGitHub:
+		return "https://github.com"
+	case defaultActionsURLSelf:
+		return strings.TrimSuffix(AppURL, "/")
+	default:
+		return string(url)
+	}
+}
+
+const (
+	defaultActionsURLForgejo = "https://code.forgejo.org"
+	defaultActionsURLGitHub  = "github" // https://github.com
+	defaultActionsURLSelf    = "self"   // the root URL of the self-hosted instance
+)
+
 func loadActionsFrom(rootCfg ConfigProvider) error {
 	sec := rootCfg.Section("actions")
 	err := sec.MapTo(&Actions)
diff --git a/modules/setting/actions_test.go b/modules/setting/actions_test.go
index a1cc8fe333..01f5bf74a5 100644
--- a/modules/setting/actions_test.go
+++ b/modules/setting/actions_test.go
@@ -8,6 +8,7 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func Test_getStorageInheritNameSectionTypeForActions(t *testing.T) {
@@ -95,3 +96,63 @@ STORAGE_TYPE = minio
 	assert.EqualValues(t, "local", Actions.ArtifactStorage.Type)
 	assert.EqualValues(t, "actions_artifacts", filepath.Base(Actions.ArtifactStorage.Path))
 }
+
+func Test_getDefaultActionsURLForActions(t *testing.T) {
+	oldActions := Actions
+	oldAppURL := AppURL
+	defer func() {
+		Actions = oldActions
+		AppURL = oldAppURL
+	}()
+
+	AppURL = "http://test_get_default_actions_url_for_actions:3000/"
+
+	tests := []struct {
+		name    string
+		iniStr  string
+		wantURL string
+	}{
+		{
+			name: "default",
+			iniStr: `
+[actions]
+`,
+			wantURL: "https://code.forgejo.org",
+		},
+		{
+			name: "github",
+			iniStr: `
+[actions]
+DEFAULT_ACTIONS_URL = github
+`,
+			wantURL: "https://github.com",
+		},
+		{
+			name: "self",
+			iniStr: `
+[actions]
+DEFAULT_ACTIONS_URL = self
+`,
+			wantURL: "http://test_get_default_actions_url_for_actions:3000",
+		},
+		{
+			name: "custom urls",
+			iniStr: `
+[actions]
+DEFAULT_ACTIONS_URL = https://example.com
+`,
+			wantURL: "https://example.com",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cfg, err := NewConfigProviderFromData(tt.iniStr)
+			require.NoError(t, err)
+			if !assert.NoError(t, loadActionsFrom(cfg)) {
+				return
+			}
+			assert.EqualValues(t, tt.wantURL, Actions.DefaultActionsURL.URL())
+		})
+	}
+}
diff --git a/routers/api/actions/runner/utils.go b/routers/api/actions/runner/utils.go
index 13d5fea27b..e95df7a00f 100644
--- a/routers/api/actions/runner/utils.go
+++ b/routers/api/actions/runner/utils.go
@@ -184,7 +184,7 @@ func generateTaskContext(t *actions_model.ActionTask) *structpb.Struct {
 		"workspace":         "",                                                   // string, The default working directory on the runner for steps, and the default location of your repository when using the checkout action.
 
 		// additional contexts
-		"gitea_default_actions_url": setting.Actions.DefaultActionsURL,
+		"gitea_default_actions_url": setting.Actions.DefaultActionsURL.URL(),
 	})
 	if err != nil {
 		log.Error("structpb.NewStruct failed: %v", err)