diff --git a/Cargo.lock b/Cargo.lock
index 88be6502ef..16de5320c6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2024,6 +2024,7 @@ dependencies = [
  "percent-encoding",
  "portpicker",
  "redis",
+ "regex",
  "reqwest 0.12.28",
  "russh",
  "rust_decimal",
diff --git a/apps/desktop/src/components/layout/SqlFilePanel.vue b/apps/desktop/src/components/layout/SqlFilePanel.vue
index 1b63966d02..d8ec428d13 100644
--- a/apps/desktop/src/components/layout/SqlFilePanel.vue
+++ b/apps/desktop/src/components/layout/SqlFilePanel.vue
@@ -1,10 +1,11 @@
 <script setup lang="ts">
 import { ref, computed, onMounted } from "vue";
 import { useI18n } from "vue-i18n";
-import { FolderOpen, FileCode, FolderClosed, ChevronRight, ChevronDown, X, Trash2, RefreshCw, FolderSearch, Copy, Play, ChevronsUpDown, ChevronsDownUp, FilePlus, Pencil } from "@lucide/vue";
+import { FolderOpen, FileCode, FolderClosed, ChevronRight, ChevronDown, X, Trash2, RefreshCw, FolderSearch, Copy, Play, ChevronsUpDown, ChevronsDownUp, Settings, FilePlus, Pencil } from "@lucide/vue";
 import { Button } from "@/components/ui/button";
-import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from "@/components/ui/dialog";
 import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import { Dialog, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle } from "@/components/ui/dialog";
 import LightTooltip from "@/components/ui/LightTooltip.vue";
 import CustomContextMenu, { type ContextMenuItem } from "@/components/ui/CustomContextMenu.vue";
 import { useQueryStore } from "@/stores/queryStore";
@@ -17,7 +18,7 @@ import { forgetExternalSqlFileTarget, moveExternalSqlFileTarget, resolveExternal
 import { externalSqlFileOpenErrorMessage, formatSqlFileSize, isExternalSqlFileTooLargeError } from "@/lib/sql/sqlFileOpen";
 import * as api from "@/lib/backend/api";
 import type { SqlFileEntry } from "@/lib/backend/api";
-import { getSqlFileFolderPaths, saveSqlFileFolderPaths, notifySqlFileFoldersChanged } from "@/lib/sqlFile/sqlFileFolders";
+import { getSqlFileFilter, getSqlFileFolderPaths, saveSqlFileFilter, saveSqlFileFolderPaths, notifySqlFileFoldersChanged } from "@/lib/sqlFile/sqlFileFolders";
 import { orderedListRangeAnchorIndex, orderedListSelectionIntent, type OrderedListSelectionItem } from "@/lib/selection/orderedListSelection";
 
 const emit = defineEmits<{
@@ -38,6 +39,9 @@ interface FolderState {
 }
 
 const folders = ref<FolderState[]>([]);
+const filterSettingsOpen = ref(false);
+const fileFilterDraft = ref(getSqlFileFilter());
+const fileFilterRegexExample = ".*[.](sql|sh|py)$";
 
 // Right-click target. `kind` discriminates between a folder header, a tree
 // directory entry, and a tree file entry. `folderPath` is the owning top-level
@@ -112,12 +116,12 @@ async function addFolder(folderPath: string) {
 // Re-scan a single top-level folder and replace its entries. Mutated via the
 // reactive proxy (folders.value[idx]) so Vue tracks the change — see the note
 // in addFolder above.
-async function loadFolderEntries(folderPath: string) {
+async function loadFolderEntries(folderPath: string): Promise<string | null> {
   const idx = folders.value.findIndex((f) => f.path === folderPath);
-  if (idx === -1) return;
+  if (idx === -1) return null;
   folders.value[idx].loading = true;
   try {
-    const entries = await api.listSqlFilesInFolder(folderPath);
+    const entries = await api.listSqlFilesInFolder(folderPath, getSqlFileFilter());
     const target = folders.value.findIndex((f) => f.path === folderPath);
     if (target !== -1) {
       folders.value[target].entries = entries;
@@ -132,13 +136,16 @@ async function loadFolderEntries(folderPath: string) {
       folders.value[target].expanded = nextExpanded;
     }
   } catch (e: any) {
-    toast(t("sqlFileTree.loadFailed", { message: e?.message || String(e) }), 5000);
+    const message = e?.message || String(e);
+    toast(t("sqlFileTree.loadFailed", { message }), 5000);
+    return message;
   } finally {
     const target = folders.value.findIndex((f) => f.path === folderPath);
     if (target !== -1) {
       folders.value[target].loading = false;
     }
   }
+  return null;
 }
 
 function collectPaths(entries: SqlFileEntry[], into: Set<string>) {
@@ -160,6 +167,24 @@ async function refreshAll() {
   toast(t("sqlFileTree.refreshed"), 1500);
 }
 
+async function saveFileFilter() {
+  const previousFilter = getSqlFileFilter();
+  saveSqlFileFilter(fileFilterDraft.value);
+  const errors = await Promise.all(folders.value.map((f) => loadFolderEntries(f.path)));
+  // An unparsable pattern must not survive in localStorage: it would fail
+  // every later refresh and silently empty Quick Open until it is fixed.
+  const invalidFilter = errors.find((message) => message?.startsWith("Invalid file filter"));
+  if (invalidFilter) {
+    saveSqlFileFilter(previousFilter);
+    await Promise.all(folders.value.map((f) => loadFolderEntries(f.path)));
+    toast(t("sqlFileTree.filterInvalid", { message: invalidFilter }), 5000);
+    return;
+  }
+  filterSettingsOpen.value = false;
+  notifySqlFileFoldersChanged();
+  toast(t("sqlFileTree.refreshed"), 1500);
+}
+
 async function reloadFolderAfterMutation(folderPath: string) {
   await loadFolderEntries(folderPath);
   notifySqlFileFoldersChanged();
@@ -507,6 +532,19 @@ function clearContextTarget() {
     <div class="h-9 flex items-center gap-1 px-2 border-b shrink-0 bg-muted/20">
       <span class="text-[13px] font-medium">{{ t("sqlFileTree.title") }}</span>
       <span class="flex-1" />
+      <LightTooltip :text="t('sqlFileTree.filterSettings')" side="bottom" :delay="0" :close-delay="0" nowrap>
+        <Button
+          variant="ghost"
+          size="icon"
+          class="h-5 w-5"
+          @click="
+            fileFilterDraft = getSqlFileFilter();
+            filterSettingsOpen = true;
+          "
+        >
+          <Settings class="h-3 w-3" />
+        </Button>
+      </LightTooltip>
       <LightTooltip v-if="folders.length > 0" :text="t('sqlFileTree.refreshAll')" side="bottom" :delay="0" :close-delay="0" nowrap>
         <Button variant="ghost" size="icon" class="h-5 w-5" @click="refreshAll">
           <RefreshCw class="h-3 w-3" />
@@ -649,6 +687,23 @@ function clearContextTarget() {
       </template>
     </CustomContextMenu>
 
+    <Dialog v-model:open="filterSettingsOpen">
+      <DialogContent class="sm:max-w-md">
+        <DialogHeader>
+          <DialogTitle>{{ t("sqlFileTree.filterSettings") }}</DialogTitle>
+        </DialogHeader>
+        <div class="grid gap-2 py-2">
+          <Label for="sql-file-filter">{{ t("sqlFileTree.fileFilter") }}</Label>
+          <Input id="sql-file-filter" v-model="fileFilterDraft" :placeholder="t('sqlFileTree.fileFilterPlaceholder')" @keydown.enter="saveFileFilter" />
+          <p class="text-xs text-muted-foreground">{{ t("sqlFileTree.fileFilterHint", { regex: fileFilterRegexExample }) }}</p>
+        </div>
+        <DialogFooter>
+          <Button type="button" variant="outline" @click="filterSettingsOpen = false">{{ t("common.cancel") }}</Button>
+          <Button type="button" @click="saveFileFilter">{{ t("common.save") }}</Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+
     <Dialog :open="showCreateDialog" @update:open="(open) => (showCreateDialog = open)">
       <DialogContent class="sm:max-w-[380px]">
         <DialogHeader>
diff --git a/apps/desktop/src/components/layout/__tests__/SqlFilePanel.spec.ts b/apps/desktop/src/components/layout/__tests__/SqlFilePanel.spec.ts
index cbcecf66d9..d8c8a69ed9 100644
--- a/apps/desktop/src/components/layout/__tests__/SqlFilePanel.spec.ts
+++ b/apps/desktop/src/components/layout/__tests__/SqlFilePanel.spec.ts
@@ -46,3 +46,16 @@ describe("SqlFilePanel directory actions", () => {
     expect(panelSource).toContain('@click.stop="openCreateDialog(folder.path, entry.path)"');
   });
 });
+
+describe("SqlFilePanel file filter", () => {
+  it("restores the previous filter when the backend rejects the saved pattern", () => {
+    expect(panelSource).toContain('message?.startsWith("Invalid file filter")');
+    expect(panelSource).toContain("saveSqlFileFilter(previousFilter)");
+    expect(panelSource).toContain('t("sqlFileTree.filterInvalid"');
+  });
+
+  it("renders the translated filter placeholder", () => {
+    expect(panelSource).toContain("t('sqlFileTree.fileFilterPlaceholder')");
+    expect(panelSource).not.toContain("const fileFilterPlaceholder =");
+  });
+});
diff --git a/apps/desktop/src/composables/__tests__/useQuickOpen.spec.ts b/apps/desktop/src/composables/__tests__/useQuickOpen.spec.ts
index 212627ba45..fb7c12220a 100644
--- a/apps/desktop/src/composables/__tests__/useQuickOpen.spec.ts
+++ b/apps/desktop/src/composables/__tests__/useQuickOpen.spec.ts
@@ -2,7 +2,7 @@ import { nextTick } from "vue";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { matchQuickOpenText, useQuickOpen } from "@/composables/useQuickOpen";
 import * as api from "@/lib/backend/api";
-import { getSqlFileFolderPaths, sqlFileFoldersVersion } from "@/lib/sqlFile/sqlFileFolders";
+import { getSqlFileFilter, getSqlFileFolderPaths, sqlFileFoldersVersion } from "@/lib/sqlFile/sqlFileFolders";
 import { useConnectionStore } from "@/stores/connectionStore";
 import { useSavedSqlStore } from "@/stores/savedSqlStore";
 
@@ -22,6 +22,7 @@ vi.mock("@/lib/backend/api", () => ({
 vi.mock("@/lib/sqlFile/sqlFileFolders", async () => {
   const { ref } = await import("vue");
   return {
+    getSqlFileFilter: vi.fn(() => "*.sql"),
     getSqlFileFolderPaths: vi.fn(),
     sqlFileFoldersVersion: ref(0),
   };
@@ -68,7 +69,7 @@ describe("useQuickOpen", () => {
 
       const { filteredItems, loadExternalSqlFiles, setQuery } = useQuickOpen();
       const initialLoad = loadExternalSqlFiles();
-      expect(api.listSqlFilesInFolder).toHaveBeenCalledWith("/old");
+      expect(api.listSqlFilesInFolder).toHaveBeenCalledWith("/old", getSqlFileFilter());
 
       sqlFileFoldersVersion.value++;
       await nextTick();
@@ -76,7 +77,7 @@ describe("useQuickOpen", () => {
       await initialLoad;
 
       expect(api.listSqlFilesInFolder).toHaveBeenCalledTimes(2);
-      expect(api.listSqlFilesInFolder).toHaveBeenLastCalledWith("/new");
+      expect(api.listSqlFilesInFolder).toHaveBeenLastCalledWith("/new", getSqlFileFilter());
       setQuery(".sql");
       expect(filteredItems.value.map((item) => item.label)).toContain("new.sql");
       expect(filteredItems.value.map((item) => item.label)).not.toContain("old.sql");
diff --git a/apps/desktop/src/composables/useQuickOpen.ts b/apps/desktop/src/composables/useQuickOpen.ts
index 9f63059ad5..bff2ccaff8 100644
--- a/apps/desktop/src/composables/useQuickOpen.ts
+++ b/apps/desktop/src/composables/useQuickOpen.ts
@@ -6,7 +6,7 @@ import { useConnectionStore } from "@/stores/connectionStore";
 import { useSavedSqlStore } from "@/stores/savedSqlStore";
 import * as api from "@/lib/backend/api";
 import type { SqlFileEntry } from "@/lib/backend/api";
-import { getSqlFileFolderPaths, sqlFileFoldersVersion } from "@/lib/sqlFile/sqlFileFolders";
+import { getSqlFileFilter, getSqlFileFolderPaths, sqlFileFoldersVersion } from "@/lib/sqlFile/sqlFileFolders";
 import i18n from "@/i18n";
 
 const REMOTE_SEARCH_DEBOUNCE_MS = 180;
@@ -258,7 +258,7 @@ export function useQuickOpen() {
         const allEntries: Array<{ entry: SqlFileEntry; rootFolder: string }> = [];
         for (const folderPath of folderPaths) {
           try {
-            const entries = await api.listSqlFilesInFolder(folderPath);
+            const entries = await api.listSqlFilesInFolder(folderPath, getSqlFileFilter());
             const collected: SqlFileEntry[] = [];
             collectSqlFileEntries(entries, collected);
             const rootName = folderNameFromPath(folderPath);
diff --git a/apps/desktop/src/i18n/locales/en.ts b/apps/desktop/src/i18n/locales/en.ts
index aab115fa74..b578b68882 100644
--- a/apps/desktop/src/i18n/locales/en.ts
+++ b/apps/desktop/src/i18n/locales/en.ts
@@ -5815,6 +5815,11 @@ export default {
     deleteFailed: "Failed to delete SQL file: {message}",
     expandAll: "Expand all",
     collapseAll: "Collapse all",
+    filterSettings: "File Filter",
+    fileFilter: "File name filter",
+    fileFilterPlaceholder: "File name filter",
+    filterInvalid: "Invalid file filter, kept the previous one: {message}",
+    fileFilterHint: "Use a glob such as *.sql or *.sh, or a regular expression such as {regex}.",
   },
   diff: {
     progress: {
diff --git a/apps/desktop/src/i18n/locales/es.ts b/apps/desktop/src/i18n/locales/es.ts
index 678236a895..cfbb1da9cd 100644
--- a/apps/desktop/src/i18n/locales/es.ts
+++ b/apps/desktop/src/i18n/locales/es.ts
@@ -7421,6 +7421,11 @@ export default withEnglishFallback({
     deleteFailed: "No se pudo eliminar el archivo SQL: {message}",
     expandAll: "Expandir todo",
     collapseAll: "Contraer todo",
+    filterSettings: "Filtro de archivos",
+    fileFilter: "Filtro de nombre de archivo",
+    fileFilterPlaceholder: "Filtro de nombre de archivo",
+    filterInvalid: "Filtro de archivos no válido; se conserva el anterior: {message}",
+    fileFilterHint: "Use un comodín como *.sql o *.sh, o una expresión regular como {regex}.",
   },
   mqTopics: {
     title: "Administración de temas",
diff --git a/apps/desktop/src/i18n/locales/it.ts b/apps/desktop/src/i18n/locales/it.ts
index 5bbea0ffb0..76a13f1350 100644
--- a/apps/desktop/src/i18n/locales/it.ts
+++ b/apps/desktop/src/i18n/locales/it.ts
@@ -7422,6 +7422,11 @@ export default withEnglishFallback({
     deleteFailed: "Impossibile eliminare il file SQL: {message}",
     expandAll: "Espandi tutto",
     collapseAll: "Comprimi tutto",
+    filterSettings: "Filtro file",
+    fileFilter: "Filtro nome file",
+    fileFilterPlaceholder: "Filtro nome file",
+    filterInvalid: "Filtro file non valido; viene mantenuto il precedente: {message}",
+    fileFilterHint: "Usa un carattere jolly come *.sql o *.sh oppure un'espressione regolare come {regex}.",
   },
   mqTopics: {
     title: "Gestione topic",
diff --git a/apps/desktop/src/i18n/locales/ja.ts b/apps/desktop/src/i18n/locales/ja.ts
index d9a3a4e23e..44baac8c87 100644
--- a/apps/desktop/src/i18n/locales/ja.ts
+++ b/apps/desktop/src/i18n/locales/ja.ts
@@ -7473,6 +7473,11 @@ export default withEnglishFallback({
     deleteFailed: "SQLファイルを削除できませんでした: {message}",
     expandAll: "すべて展開",
     collapseAll: "すべて折りたたむ",
+    filterSettings: "ファイルフィルター",
+    fileFilter: "ファイル名フィルター",
+    fileFilterPlaceholder: "ファイル名フィルター",
+    filterInvalid: "ファイルフィルタが無効なため、以前の設定を維持しました：{message}",
+    fileFilterHint: "*.sql や *.sh のようなワイルドカード、または {regex} のような正規表現を使用できます。",
   },
   mqTopics: {
     title: "トピック管理",
diff --git a/apps/desktop/src/i18n/locales/ko.ts b/apps/desktop/src/i18n/locales/ko.ts
index ce036723c1..6d030768d6 100644
--- a/apps/desktop/src/i18n/locales/ko.ts
+++ b/apps/desktop/src/i18n/locales/ko.ts
@@ -5240,6 +5240,11 @@ export default withEnglishFallback({
     deleteFailed: "SQL 파일을 삭제하지 못했습니다: {message}",
     expandAll: "모두 펼치기",
     collapseAll: "모두 접기",
+    filterSettings: "파일 필터",
+    fileFilter: "파일 이름 필터",
+    fileFilterPlaceholder: "파일 이름 필터",
+    filterInvalid: "파일 필터가 잘못되어 이전 설정을 유지합니다: {message}",
+    fileFilterHint: "*.sql 또는 *.sh 같은 와일드카드나 {regex} 같은 정규식을 사용할 수 있습니다.",
   },
   diff: {
     progress: {
diff --git a/apps/desktop/src/i18n/locales/pt-BR.ts b/apps/desktop/src/i18n/locales/pt-BR.ts
index b168ba1fba..f993ac334d 100644
--- a/apps/desktop/src/i18n/locales/pt-BR.ts
+++ b/apps/desktop/src/i18n/locales/pt-BR.ts
@@ -7423,6 +7423,11 @@ export default withEnglishFallback({
     deleteFailed: "Falha ao excluir o arquivo SQL: {message}",
     expandAll: "Expandir todos",
     collapseAll: "Recolher todos",
+    filterSettings: "Filtro de arquivos",
+    fileFilter: "Filtro de nome de arquivo",
+    fileFilterPlaceholder: "Filtro de nome de arquivo",
+    filterInvalid: "Filtro de arquivo inválido; o anterior foi mantido: {message}",
+    fileFilterHint: "Use um curinga como *.sql ou *.sh, ou uma expressão regular como {regex}.",
   },
   mqTopics: {
     title: "Gerenciamento de tópicos",
diff --git a/apps/desktop/src/i18n/locales/zh-CN.ts b/apps/desktop/src/i18n/locales/zh-CN.ts
index 74961b69b8..e23be266f6 100644
--- a/apps/desktop/src/i18n/locales/zh-CN.ts
+++ b/apps/desktop/src/i18n/locales/zh-CN.ts
@@ -5799,6 +5799,11 @@ export default withEnglishFallback({
     deleteFailed: "删除 SQL 文件失败: {message}",
     expandAll: "全部展开",
     collapseAll: "全部折叠",
+    filterSettings: "文件过滤",
+    fileFilter: "文件名过滤规则",
+    fileFilterPlaceholder: "文件名过滤规则",
+    filterInvalid: "文件过滤规则无效，已保留原规则：{message}",
+    fileFilterHint: "支持通配符（如 *.sql、*.sh）或正则表达式（如 {regex}）。",
   },
   diff: {
     progress: {
diff --git a/apps/desktop/src/i18n/locales/zh-TW.ts b/apps/desktop/src/i18n/locales/zh-TW.ts
index 89740360f0..344b93850a 100644
--- a/apps/desktop/src/i18n/locales/zh-TW.ts
+++ b/apps/desktop/src/i18n/locales/zh-TW.ts
@@ -7411,6 +7411,11 @@ export default withEnglishFallback({
     deleteFailed: "刪除 SQL 檔案失敗: {message}",
     expandAll: "全部展開",
     collapseAll: "全部摺疊",
+    filterSettings: "檔案篩選",
+    fileFilter: "檔案名稱篩選規則",
+    fileFilterPlaceholder: "檔案名稱篩選規則",
+    filterInvalid: "檔案篩選規則無效，已保留原規則：{message}",
+    fileFilterHint: "支援萬用字元（如 *.sql、*.sh）或正則表示式（如 {regex}）。",
   },
   mqTopics: {
     title: "主題管理",
diff --git a/apps/desktop/src/lib/backend/http.ts b/apps/desktop/src/lib/backend/http.ts
index 4515395771..38e99d9f2e 100644
--- a/apps/desktop/src/lib/backend/http.ts
+++ b/apps/desktop/src/lib/backend/http.ts
@@ -2223,7 +2223,7 @@ export interface SqlFileEntry {
   children: SqlFileEntry[];
 }
 
-export async function listSqlFilesInFolder(_folderPath: string): Promise<SqlFileEntry[]> {
+export async function listSqlFilesInFolder(_folderPath: string, _fileFilter?: string): Promise<SqlFileEntry[]> {
   throw new Error("Listing SQL files in a folder is only available in the desktop app");
 }
 
diff --git a/apps/desktop/src/lib/backend/tauri.ts b/apps/desktop/src/lib/backend/tauri.ts
index 89c97bdf95..7f58ac7fde 100644
--- a/apps/desktop/src/lib/backend/tauri.ts
+++ b/apps/desktop/src/lib/backend/tauri.ts
@@ -888,8 +888,8 @@ export interface SqlFileEntry {
   children: SqlFileEntry[];
 }
 
-export async function listSqlFilesInFolder(folderPath: string): Promise<SqlFileEntry[]> {
-  return invoke("list_sql_files_in_folder", { folderPath });
+export async function listSqlFilesInFolder(folderPath: string, fileFilter?: string): Promise<SqlFileEntry[]> {
+  return invoke("list_sql_files_in_folder", { folderPath, fileFilter });
 }
 
 export async function createSqlFileInFolder(rootPath: string, directoryPath: string, fileName: string): Promise<string> {
diff --git a/apps/desktop/src/lib/sqlFile/sqlFileFolders.ts b/apps/desktop/src/lib/sqlFile/sqlFileFolders.ts
index 5839eb15e0..65f8fae8eb 100644
--- a/apps/desktop/src/lib/sqlFile/sqlFileFolders.ts
+++ b/apps/desktop/src/lib/sqlFile/sqlFileFolders.ts
@@ -2,6 +2,8 @@ import { ref } from "vue";
 import { safeLocalStorageGet, safeLocalStorageSet } from "@/lib/backend/safeStorage";
 
 const STORAGE_KEY = "dbx-sql-file-folders";
+const FILTER_STORAGE_KEY = "dbx-sql-file-filter";
+export const DEFAULT_SQL_FILE_FILTER = "*.sql";
 
 /**
  * Shared reactive version counter — bumped whenever SQL file folder paths change.
@@ -22,6 +24,18 @@ export function getSqlFileFolderPaths(): string[] {
   }
 }
 
+/** Read the file-name filter used by the external SQL file browser. */
+export function getSqlFileFilter(): string {
+  const filter = safeLocalStorageGet(FILTER_STORAGE_KEY)?.trim();
+  return filter || DEFAULT_SQL_FILE_FILTER;
+}
+
+/** Persist the file-name filter and invalidate cached external file listings. */
+export function saveSqlFileFilter(filter: string): void {
+  safeLocalStorageSet(FILTER_STORAGE_KEY, filter.trim() || DEFAULT_SQL_FILE_FILTER);
+  sqlFileFoldersVersion.value++;
+}
+
 /** Persist folder paths to localStorage and notify subscribers. */
 export function saveSqlFileFolderPaths(paths: string[]): void {
   safeLocalStorageSet(STORAGE_KEY, JSON.stringify(paths));
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index c551697e29..fed9cb9e64 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -55,6 +55,7 @@ portpicker = "0.1.1"
 tiberius = { version = "0.12.3", default-features = false, features = ["tds73", "chrono", "rust_decimal", "rustls", "sql-browser-tokio"] }
 tokio-util = { version = "0.7", features = ["compat"] }
 reqwest = { version = "0.12", features = ["json", "stream"] }
+regex = "1"
 futures = "0.3"
 mongodb = { version = "3.2.5", features = ["socks5-proxy"] }
 percent-encoding = "2"
diff --git a/src-tauri/src/commands/list_sql_files.rs b/src-tauri/src/commands/list_sql_files.rs
index eedc3709d9..2b0dc58cf1 100644
--- a/src-tauri/src/commands/list_sql_files.rs
+++ b/src-tauri/src/commands/list_sql_files.rs
@@ -1,8 +1,10 @@
+use regex::Regex;
 use serde::Serialize;
 use std::collections::HashSet;
 use std::path::{Path, PathBuf};
 
 const MAX_SCAN_DEPTH: usize = 10;
+const DEFAULT_FILE_FILTER: &str = "*.sql";
 
 /// Directories that are never interesting for SQL file browsing but are huge
 /// (often tens of thousands of entries), which makes a recursive scan take
@@ -91,7 +93,50 @@ fn is_pruned_dir(name: &str) -> bool {
     PRUNED_DIRS.iter().any(|d| name.eq_ignore_ascii_case(d))
 }
 
-fn scan_sql_files(dir: &Path, depth: usize, visited: &mut HashSet<String>) -> Vec<SqlFileEntry> {
+fn glob_to_regex(glob: &str) -> String {
+    let mut pattern = String::from("(?i)^");
+    for character in glob.chars() {
+        match character {
+            '*' => pattern.push_str(".*"),
+            '?' => pattern.push('.'),
+            _ => pattern.push_str(&regex::escape(&character.to_string())),
+        }
+    }
+    pattern.push('$');
+    pattern
+}
+
+fn is_glob_filter(file_filter: &str) -> bool {
+    let characters: Vec<char> = file_filter.chars().collect();
+    if !characters.contains(&'*') && !characters.contains(&'?') {
+        return false;
+    }
+    for (index, character) in characters.iter().enumerate() {
+        if matches!(character, '\\' | '(' | ')' | '[' | ']' | '{' | '}' | '^' | '$' | '|' | '+') {
+            return false;
+        }
+        // A wildcard directly after `.` is a regex quantifier (`.*`, `.?`),
+        // not a glob wildcard: `.*sql` must stay a regex while `*.sql` is a glob.
+        if matches!(character, '*' | '?') && index > 0 && characters[index - 1] == '.' {
+            return false;
+        }
+    }
+    true
+}
+
+fn compile_file_filter(file_filter: &str) -> Result<Regex, String> {
+    let file_filter = file_filter.trim();
+    let pattern = if file_filter.is_empty() {
+        glob_to_regex(DEFAULT_FILE_FILTER)
+    } else if is_glob_filter(file_filter) {
+        glob_to_regex(file_filter)
+    } else {
+        file_filter.to_string()
+    };
+    Regex::new(&pattern).map_err(|error| format!("Invalid file filter regular expression: {error}"))
+}
+
+fn scan_sql_files(dir: &Path, depth: usize, visited: &mut HashSet<String>, file_filter: &Regex) -> Vec<SqlFileEntry> {
     if depth > MAX_SCAN_DEPTH {
         return vec![];
     }
@@ -127,13 +172,11 @@ fn scan_sql_files(dir: &Path, depth: usize, visited: &mut HashSet<String>) -> Ve
             if is_pruned_dir(&name) {
                 continue;
             }
-            let children = scan_sql_files(&path, depth + 1, visited);
+            let children = scan_sql_files(&path, depth + 1, visited, file_filter);
             if !children.is_empty() {
                 entries.push(SqlFileEntry { name, path: path.to_string_lossy().to_string(), is_dir: true, children });
             }
-        } else if file_type.is_file()
-            && path.extension().and_then(|e| e.to_str()).map(|e| e.eq_ignore_ascii_case("sql")).unwrap_or(false)
-        {
+        } else if file_type.is_file() && file_filter.is_match(&name) {
             entries.push(SqlFileEntry {
                 name,
                 path: path.to_string_lossy().to_string(),
@@ -155,8 +198,12 @@ fn scan_sql_files(dir: &Path, depth: usize, visited: &mut HashSet<String>) -> Ve
 }
 
 #[tauri::command]
-pub async fn list_sql_files_in_folder(folder_path: String) -> Result<Vec<SqlFileEntry>, String> {
+pub async fn list_sql_files_in_folder(
+    folder_path: String,
+    file_filter: Option<String>,
+) -> Result<Vec<SqlFileEntry>, String> {
     let path = Path::new(&folder_path).to_path_buf();
+    let file_filter = compile_file_filter(file_filter.as_deref().unwrap_or(DEFAULT_FILE_FILTER))?;
     // Filesystem scanning is blocking work; run it on a thread pool so the
     // Tauri main thread (and thus the webview) does not freeze while large
     // folders are being walked.
@@ -165,7 +212,7 @@ pub async fn list_sql_files_in_folder(folder_path: String) -> Result<Vec<SqlFile
             return Err(format!("Path is not a directory: {}", folder_path));
         }
         let mut visited = HashSet::new();
-        Ok(scan_sql_files(&path, 0, &mut visited))
+        Ok(scan_sql_files(&path, 0, &mut visited, &file_filter))
     })
     .await
     .map_err(|e| format!("Failed to scan folder: {e}"))?
@@ -257,7 +304,8 @@ mod tests {
         std::fs::write(idea.join("workspace.sql"), "SELECT 3;").unwrap();
 
         let mut visited = HashSet::new();
-        let entries = scan_sql_files(&root, 0, &mut visited);
+        let filter = compile_file_filter(DEFAULT_FILE_FILTER).unwrap();
+        let entries = scan_sql_files(&root, 0, &mut visited, &filter);
         let mut names = Vec::new();
         collect_file_names(&entries, &mut names);
         names.sort();
@@ -266,6 +314,53 @@ mod tests {
         std::fs::remove_dir_all(root).unwrap();
     }
 
+    #[test]
+    fn scan_sql_files_accepts_user_regular_expressions() {
+        let root = std::env::temp_dir().join(format!("dbx-file-folder-scan-{}", uuid::Uuid::new_v4()));
+        std::fs::create_dir_all(&root).unwrap();
+        std::fs::write(root.join("query.sql"), "SELECT 1;").unwrap();
+        std::fs::write(root.join("script.sh"), "echo hello").unwrap();
+        std::fs::write(root.join("tool.py"), "print('hello')").unwrap();
+
+        let mut visited = HashSet::new();
+        let filter = compile_file_filter(r"\.(sql|sh|py)$").unwrap();
+        let entries = scan_sql_files(&root, 0, &mut visited, &filter);
+        let mut names = Vec::new();
+        collect_file_names(&entries, &mut names);
+        names.sort();
+
+        assert_eq!(names, vec!["query.sql", "script.sh", "tool.py"]);
+        std::fs::remove_dir_all(root).unwrap();
+    }
+
+    #[test]
+    fn compile_file_filter_accepts_glob_patterns() {
+        let filter = compile_file_filter("*.sh").unwrap();
+
+        assert!(filter.is_match("script.sh"));
+        assert!(filter.is_match("SCRIPT.SH"));
+        assert!(!filter.is_match("script.py"));
+    }
+
+    #[test]
+    fn compile_file_filter_keeps_dot_prefixed_wildcards_as_regex() {
+        // `.*sql` is a regex ("anything ending in sql"), not a glob that would
+        // match only literal dots before "sql".
+        let filter = compile_file_filter(".*sql").unwrap();
+
+        assert!(filter.is_match("notes.sql"));
+        assert!(filter.is_match("mysql-dump.txt"));
+        assert!(!filter.is_match("readme.txt"));
+    }
+
+    #[test]
+    fn compile_file_filter_accepts_question_mark_globs() {
+        let filter = compile_file_filter("file?.sql").unwrap();
+
+        assert!(filter.is_match("file1.sql"));
+        assert!(!filter.is_match("file12.sql"));
+    }
+
     #[test]
     fn validates_single_sql_file_names() {
         assert_eq!(validate_sql_file_name("query.sql").unwrap(), "query.sql");