diff --git a/README.md b/README.md
index 11a7169..ef8a722 100644
--- a/README.md
+++ b/README.md
@@ -13,8 +13,9 @@ This project uses [Wails](https://wails.io) to build a desktop application with
 ## Plugins
 
 Dequoter can be extended with new filters written in [UCL](https://ucl.lmika.dev).
-On startup, if the directory `$HOME/.config/dequoter/plugins` exists, every file ending in `.ucl`
-found in it (including subdirectories) is evaluated. Filters are defined with the `d:filter` builtin:
+On startup, Dequoter creates `$HOME/Library/Application Support/dev.lmika.dequoter/plugins` if needed,
+then evaluates every file ending in `.ucl` found in it (including subdirectories).
+Filters are defined with the `d:filter` builtin:
 
 ```
 d:filter "String: To Upper Case" { |in|
@@ -33,6 +34,8 @@ fail to load are skipped and reported in the status bar; the remaining files are
 
 After editing plugin files, choose File → Reload Plugins (Shift+Cmd+R) to rescan the directory without
 restarting. This discards the previous plugin filters and UCL interpreter state before loading the files again.
+Use File → Open Plugins in Finder or File → Open Plugins in Terminal to access the directory.
+If you have plugins in the old `$HOME/.config/dequoter/plugins` directory, move them to the new location.
 
 ## Download
 
@@ -52,4 +55,4 @@ The above copyright notice and this permission notice shall be included in all c
 THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 
 WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR 
 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 
-OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/app.go b/app.go
index 37d2bd1..8a467ef 100644
--- a/app.go
+++ b/app.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"log"
+	"os/exec"
 	"sort"
 	"strings"
 	"sync"
@@ -96,10 +97,11 @@ func (a *App) loadPluginsFrom(dir string) int {
 func (a *App) startup(ctx context.Context) {
 	a.baseCtx = ctx
 
-	dir, err := pluginDir()
+	dir, err := ensurePluginDir()
 	if err != nil {
-		log.Printf("cannot determine plugin directory: %v", err)
-		a.setUCLInst(newUCLInst(newPluginFilters()), nil)
+		plugins := newPluginFilters()
+		plugins.recordError(err)
+		a.setUCLInst(newUCLInst(plugins), plugins)
 		return
 	}
 	a.loadPluginsFrom(dir)
@@ -114,11 +116,11 @@ func (a *App) domReady(ctx context.Context) {
 // ReloadPlugins discards the current plugin filters and UCL interpreter, rescans the plugin
 // directory, and refreshes the command palette. Invoked from the File menu.
 func (a *App) ReloadPlugins() {
-	dir, err := pluginDir()
+	dir, err := ensurePluginDir()
 	if err != nil {
 		_, _, ctx := a.current()
 		runtime.EventsEmit(ctx, "set-statusbar-message", SetStatusbarMessage{
-			Message: fmt.Sprintf("Cannot determine plugin directory: %v", err),
+			Message: fmt.Sprintf("Cannot prepare plugin directory: %v", err),
 			Error:   true,
 		})
 		return
@@ -131,6 +133,21 @@ func (a *App) ReloadPlugins() {
 	a.reportPluginStatus(count, true)
 }
 
+// openPluginDir opens the plugin directory using the specified macOS application.
+func (a *App) openPluginDir(application string) {
+	dir, err := ensurePluginDir()
+	if err == nil {
+		err = exec.Command("/usr/bin/open", "-a", application, dir).Run()
+	}
+	if err != nil {
+		_, _, ctx := a.current()
+		runtime.EventsEmit(ctx, "set-statusbar-message", SetStatusbarMessage{
+			Message: fmt.Sprintf("Cannot open plugins in %s: %v", application, err),
+			Error:   true,
+		})
+	}
+}
+
 // reportPluginStatus shows plugin load errors in the status bar. If there are no errors and
 // reloaded is true, a confirmation message is shown instead.
 func (a *App) reportPluginStatus(filterCount int, reloaded bool) {
diff --git a/go.sum b/go.sum
index 94bf82c..f3643af 100644
--- a/go.sum
+++ b/go.sum
@@ -796,7 +796,5 @@ lmika.dev/pkg/modash v0.1.0/go.mod h1:8NDl/yR1eCCEhip9FJlVuMNXIeaztQ0Ks/tizExFcT
 lmika.dev/pkg/progdoc v0.0.0-20260207235039-984257fb414b h1:uarBEkpjAnpzO98btsA6ZDw9oGnJX8zSb8gZnCFl+6Y=
 lmika.dev/pkg/progdoc v0.0.0-20260207235039-984257fb414b/go.mod h1:GefQ+wxW6L0p2TfB4fzoP7ihOgEt5Lb/1qgXhruVHos=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
-ucl.lmika.dev v0.1.6 h1:cZocpR/IQcy9nvE8u+SSLY7/PE9fd1HIVWhZr/m+U5M=
-ucl.lmika.dev v0.1.6/go.mod h1:Hjl6Udph2yuOPcBSytz4SFJVt5MZbM5JyiSAyTMTbNU=
 ucl.lmika.dev v0.1.7 h1:3yfvWOhBnWpQIm4NhKrUBh5PajB1wzUWzoPPa8ltaVo=
 ucl.lmika.dev v0.1.7/go.mod h1:Hjl6Udph2yuOPcBSytz4SFJVt5MZbM5JyiSAyTMTbNU=
diff --git a/main.go b/main.go
index 73b5430..167c39f 100644
--- a/main.go
+++ b/main.go
@@ -40,6 +40,12 @@ func main() {
 	fileMenu.AddText("Reload Plugins", keys.Combo("r", keys.CmdOrCtrlKey, keys.ShiftKey), func(_ *menu.CallbackData) {
 		app.ReloadPlugins()
 	})
+	fileMenu.AddText("Open Plugins in Finder", nil, func(_ *menu.CallbackData) {
+		app.openPluginDir("Finder")
+	})
+	fileMenu.AddText("Open Plugins in Terminal", nil, func(_ *menu.CallbackData) {
+		app.openPluginDir("Terminal")
+	})
 	fileMenu.AddSeparator()
 	fileMenu.AddText("Quit", keys.CmdOrCtrl("q"), func(_ *menu.CallbackData) {
 		// `rt` is an alias of "github.com/wailsapp/wails/v2/pkg/runtime" to prevent collision with standard package
diff --git a/plugins.go b/plugins.go
index baaf476..036062e 100644
--- a/plugins.go
+++ b/plugins.go
@@ -173,13 +173,24 @@ func (p *PluginFilters) Errors() []error {
 	return p.errors
 }
 
-// pluginDir returns the plugin directory: $HOME/.config/dequoter/plugins
+// pluginDir returns the plugin directory under macOS Application Support.
 func pluginDir() (string, error) {
 	home, err := os.UserHomeDir()
 	if err != nil {
 		return "", err
 	}
-	return filepath.Join(home, ".config", "dequoter", "plugins"), nil
+	return filepath.Join(home, "Library", "Application Support", "dev.lmika.dequoter", "Plugins"), nil
+}
+
+func ensurePluginDir() (string, error) {
+	dir, err := pluginDir()
+	if err != nil {
+		return "", err
+	}
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return "", fmt.Errorf("create plugin directory: %w", err)
+	}
+	return dir, nil
 }
 
 var nonSlugChars = regexp.MustCompile(`[^a-z0-9]+`)