diff --git a/internal/dlcache/dlcache.go b/internal/dlcache/dlcache.go
new file mode 100644
index 0000000..c62e471
--- /dev/null
+++ b/internal/dlcache/dlcache.go
@@ -0,0 +1,61 @@
+package dlcache
+
+import (
+	"encoding/hex"
+	"io"
+	"os"
+	"path/filepath"
+
+	"crypto/sha1"
+
+	"go.arsenm.dev/lure/internal/config"
+)
+
+var BasePath = filepath.Join(config.CacheDir, "dl")
+
+func New(id string) (string, error) {
+	h, err := hashID(id)
+	if err != nil {
+		return "", err
+	}
+	itemPath := filepath.Join(BasePath, h)
+
+	fi, err := os.Stat(itemPath)
+	if err == nil || (fi != nil && !fi.IsDir()) {
+		err = os.RemoveAll(itemPath)
+		if err != nil {
+			return "", err
+		}
+	}
+
+	err = os.MkdirAll(itemPath, 0o755)
+	if err != nil {
+		return "", err
+	}
+
+	return itemPath, nil
+}
+
+func Get(id string) (string, bool) {
+	h, err := hashID(id)
+	if err != nil {
+		return "", false
+	}
+	itemPath := filepath.Join(BasePath, h)
+
+	_, err = os.Stat(itemPath)
+	if err != nil {
+		return "", false
+	}
+
+	return itemPath, true
+}
+
+func hashID(id string) (string, error) {
+	h := sha1.New()
+	_, err := io.WriteString(h, id)
+	if err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(h.Sum(nil)), nil
+}
diff --git a/internal/dlcache/dlcache_test.go b/internal/dlcache/dlcache_test.go
new file mode 100644
index 0000000..c5ff087
--- /dev/null
+++ b/internal/dlcache/dlcache_test.go
@@ -0,0 +1,56 @@
+package dlcache_test
+
+import (
+	"crypto/sha1"
+	"encoding/hex"
+	"io"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"go.arsenm.dev/lure/internal/dlcache"
+)
+
+func init() {
+	dir, err := os.MkdirTemp("/tmp", "lure-dlcache-test.*")
+	if err != nil {
+		panic(err)
+	}
+	dlcache.BasePath = dir
+}
+
+func TestNew(t *testing.T) {
+	const id = "https://example.com"
+	dir, err := dlcache.New(id)
+	if err != nil {
+		t.Errorf("Expected no error, got %s", err)
+	}
+
+	exp := filepath.Join(dlcache.BasePath, sha1sum(id))
+	if dir != exp {
+		t.Errorf("Expected %s, got %s", exp, dir)
+	}
+
+	fi, err := os.Stat(dir)
+	if err != nil {
+		t.Errorf("stat: expected no error, got %s", err)
+	}
+
+	if !fi.IsDir() {
+		t.Errorf("Expected cache item to be a directory")
+	}
+
+	dir2, ok := dlcache.Get(id)
+	if !ok {
+		t.Errorf("Expected Get() to return valid value")
+	}
+	if dir2 != dir {
+		t.Errorf("Expected %s from Get(), got %s", dir, dir2)
+	}
+}
+
+func sha1sum(id string) string {
+	h := sha1.New()
+	_, _ = io.WriteString(h, id)
+	return hex.EncodeToString(h.Sum(nil))
+}