diff --git a/src/components/media/QuickToolsDialog.tsx b/src/components/media/QuickToolsDialog.tsx
new file mode 100644
index 0000000..20e67c4
--- /dev/null
+++ b/src/components/media/QuickToolsDialog.tsx
@@ -0,0 +1,306 @@
+import { useEffect, useRef, useState } from 'react'
+import { useTranslation } from 'react-i18next'
+import { Loader2, Download, Upload, Play } from 'lucide-react'
+import { toast } from 'sonner'
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogDescription,
+} from '@/components/ui/dialog'
+import { Button } from '@/components/ui/button'
+import { Label } from '@/components/ui/label'
+import { Input } from '@/components/ui/input'
+import { getFFmpeg, fetchFile, inferMime, run } from '@/lib/ffmpeg'
+import {
+  buildCompressArgs,
+  buildResizeArgs,
+  buildMuteArgs,
+  buildTransformArgs,
+  buildThumbnailArgs,
+  buildExtractAudioArgs,
+  buildLoudnormArgs,
+  buildConvertArgs,
+  buildGifPalettePassArgs,
+  buildGifRenderArgs,
+  type Transform,
+} from '@/lib/media-ops'
+
+/**
+ * Quick single-file operations — the former "operation tabs", folded into a
+ * dialog so the timeline editor stays the primary view. Operates on ONE file
+ * end-to-end (pick → run → download); never touches the timeline project.
+ * Reuses the unit-tested media-ops builders.
+ */
+
+type Op =
+  | 'compress'
+  | 'convert'
+  | 'gif'
+  | 'audio'
+  | 'loudnorm'
+  | 'resize'
+  | 'mute'
+  | 'rotate'
+  | 'frame'
+
+const OPS: Op[] = ['compress', 'convert', 'gif', 'audio', 'loudnorm', 'resize', 'mute', 'rotate', 'frame']
+
+type AudioCodec = 'libmp3lame' | 'aac' | 'flac' | 'pcm_s16le'
+const AUDIO_EXT: Record<AudioCodec, string> = { libmp3lame: 'mp3', aac: 'aac', flac: 'flac', pcm_s16le: 'wav' }
+
+const stripExt = (name: string) => name.replace(/\.[^./]+$/, '')
+const getExt = (name: string) => name.split('.').pop()?.toLowerCase() ?? 'bin'
+
+type Result = { url: string; filename: string; size: number } | null
+type Status = { kind: 'idle' } | { kind: 'loading' } | { kind: 'running'; progress: number }
+
+export function QuickToolsDialog({ open, onOpenChange }: { open: boolean; onOpenChange: (v: boolean) => void }) {
+  const { t } = useTranslation()
+  const [file, setFile] = useState<File | null>(null)
+  const [op, setOp] = useState<Op>('compress')
+  const [status, setStatus] = useState<Status>({ kind: 'idle' })
+  const [result, setResult] = useState<Result>(null)
+  const inputRef = useRef<HTMLInputElement>(null)
+
+  // Option state.
+  const [crf, setCrf] = useState(28)
+  const [convertTarget, setConvertTarget] = useState<'mp4' | 'webm' | 'mov' | 'mkv'>('mp4')
+  const [resizeWidth, setResizeWidth] = useState(1280)
+  const [audioCodec, setAudioCodec] = useState<AudioCodec>('libmp3lame')
+  const [transform, setTransform] = useState<Transform>('rotate90')
+  const [thumbSec, setThumbSec] = useState(0)
+
+  useEffect(() => {
+    return () => {
+      if (result) URL.revokeObjectURL(result.url)
+    }
+  }, [result])
+
+  const clearResult = () => {
+    setResult((r) => {
+      if (r) URL.revokeObjectURL(r.url)
+      return null
+    })
+  }
+
+  const busy = status.kind !== 'idle'
+
+  const runOp = async (fn: () => Promise<{ blob: Blob; filename: string }>) => {
+    if (!file) {
+      toast.error(t('media.quick.errPickFile'))
+      return
+    }
+    if (busy) return
+    clearResult()
+    setStatus({ kind: 'loading' })
+    try {
+      await getFFmpeg()
+      setStatus({ kind: 'running', progress: 0 })
+      const { blob, filename } = await fn()
+      setResult({ url: URL.createObjectURL(blob), filename, size: blob.size })
+      toast.success(t('media.processingDone'))
+    } catch (e) {
+      toast.error(e instanceof Error ? e.message : String(e), { duration: 8000 })
+    } finally {
+      setStatus({ kind: 'idle' })
+    }
+  }
+
+  const onProgress = (r: number) => setStatus({ kind: 'running', progress: r })
+
+  // Single-input/output op via the shared `run` helper.
+  const single = (build: (io: { input: string; output: string }) => string[], outExt: string, suffix: string) =>
+    runOp(async () => {
+      const input = `input.${getExt(file!.name)}`
+      const output = `out.${outExt}`
+      const { blob } = await run({
+        inputs: [{ name: input, data: file! }],
+        command: build({ input, output }),
+        outputName: output,
+        outputMime: inferMime(output),
+        onProgress,
+      })
+      return { blob, filename: `${stripExt(file!.name)}${suffix}.${outExt}` }
+    })
+
+  const handlers: Record<Op, () => void> = {
+    compress: () => single(({ input, output }) => buildCompressArgs({ input, output, crf, preset: 'medium' }), 'mp4', '_compressed'),
+    convert: () => single(({ input, output }) => buildConvertArgs({ input, output, target: convertTarget }), convertTarget, ''),
+    audio: () => single(({ input, output }) => buildExtractAudioArgs({ input, output, codec: audioCodec }), AUDIO_EXT[audioCodec], ''),
+    loudnorm: () => single(({ input, output }) => buildLoudnormArgs({ input, output }), 'm4a', '_normalized'),
+    resize: () => single(({ input, output }) => buildResizeArgs({ input, output, width: resizeWidth }), 'mp4', `_${resizeWidth}w`),
+    mute: () => single(({ input, output }) => buildMuteArgs({ input, output }), 'mp4', '_muted'),
+    rotate: () => single(({ input, output }) => buildTransformArgs({ input, output, transform }), 'mp4', `_${transform}`),
+    frame: () => single(({ input, output }) => buildThumbnailArgs({ input, output, atSec: thumbSec, width: 0 }), 'png', '_frame'),
+    gif: () =>
+      runOp(async () => {
+        const ff = await getFFmpeg()
+        const input = `input.${getExt(file!.name)}`
+        const palette = 'palette.png'
+        const output = 'out.gif'
+        try {
+          await ff.writeFile(input, await fetchFile(file!))
+          if ((await ff.exec(buildGifPalettePassArgs({ input, palette, fps: 12, width: 480 }))) !== 0)
+            throw new Error(t('media.errGif'))
+          if ((await ff.exec(buildGifRenderArgs({ input, palette, output, fps: 12, width: 480 }))) !== 0)
+            throw new Error(t('media.errGif'))
+          const data = await ff.readFile(output)
+          if (typeof data === 'string') throw new Error(t('media.errUnexpectedString'))
+          return { blob: new Blob([new Uint8Array(data)], { type: 'image/gif' }), filename: `${stripExt(file!.name)}.gif` }
+        } finally {
+          for (const n of [input, palette, output]) {
+            try {
+              await ff.deleteFile(n)
+            } catch {
+              /* ignore */
+            }
+          }
+        }
+      }),
+  }
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="max-w-2xl">
+        <DialogHeader>
+          <DialogTitle>{t('media.quick.title')}</DialogTitle>
+          <DialogDescription>{t('media.quick.description')}</DialogDescription>
+        </DialogHeader>
+
+        {/* File picker */}
+        <button
+          type="button"
+          onClick={() => inputRef.current?.click()}
+          className="flex items-center gap-2 rounded-md border border-dashed border-input px-3 py-2 text-sm text-muted-foreground hover:bg-accent/30"
+        >
+          <Upload className="h-4 w-4" />
+          {file ? <span className="font-mono text-foreground">{file.name}</span> : t('media.quick.pickFile')}
+        </button>
+        <input
+          ref={inputRef}
+          type="file"
+          accept="video/*,audio/*"
+          hidden
+          onChange={(e) => {
+            if (e.target.files?.[0]) {
+              setFile(e.target.files[0])
+              clearResult()
+            }
+            e.target.value = ''
+          }}
+        />
+
+        {/* Op selector */}
+        <div className="flex flex-wrap gap-1.5">
+          {OPS.map((o) => (
+            <button
+              key={o}
+              type="button"
+              onClick={() => setOp(o)}
+              className={`rounded-md border px-2.5 py-1 text-xs transition-colors ${
+                op === o ? 'border-foreground/40 bg-accent text-accent-foreground' : 'border-input text-muted-foreground hover:text-foreground'
+              }`}
+            >
+              {t(`media.quick.op.${o}`)}
+            </button>
+          ))}
+        </div>
+
+        {/* Per-op options */}
+        <div className="min-h-[2.25rem] text-sm">
+          {op === 'compress' && (
+            <Row label={t('media.crf')}>
+              <input type="range" min={18} max={34} value={crf} onChange={(e) => setCrf(Number(e.target.value))} className="w-40 accent-primary" />
+              <span className="w-6 font-mono text-xs">{crf}</span>
+            </Row>
+          )}
+          {op === 'convert' && (
+            <Row label={t('media.convertFormat')}>
+              <Seg value={convertTarget} onChange={setConvertTarget} options={[['mp4', 'MP4'], ['webm', 'WebM'], ['mov', 'MOV'], ['mkv', 'MKV']]} />
+            </Row>
+          )}
+          {op === 'resize' && (
+            <Row label={t('media.width')}>
+              <Seg value={String(resizeWidth)} onChange={(v) => setResizeWidth(Number(v))} options={[['640', '640'], ['1280', '1280'], ['1920', '1920']]} />
+            </Row>
+          )}
+          {op === 'audio' && (
+            <Row label={t('media.audioFormat')}>
+              <Seg value={audioCodec} onChange={(v) => setAudioCodec(v as AudioCodec)} options={[['libmp3lame', 'MP3'], ['aac', 'AAC'], ['flac', 'FLAC'], ['pcm_s16le', 'WAV']]} />
+            </Row>
+          )}
+          {op === 'rotate' && (
+            <Row label={t('media.transform')}>
+              <Seg
+                value={transform}
+                onChange={(v) => setTransform(v as Transform)}
+                options={[['rotate90', '⟳90°'], ['rotate180', '180°'], ['rotate270', '⟲90°'], ['flipH', t('media.flipH')], ['flipV', t('media.flipV')]]}
+              />
+            </Row>
+          )}
+          {op === 'frame' && (
+            <Row label={t('media.atSecond')}>
+              <Input type="number" min={0} step={0.5} value={thumbSec} onChange={(e) => setThumbSec(Math.max(0, Number(e.target.value)))} className="h-8 w-24 font-mono text-sm" />
+            </Row>
+          )}
+          {op === 'gif' && <p className="text-xs text-muted-foreground">{t('media.gifDescription')}</p>}
+          {op === 'mute' && <p className="text-xs text-muted-foreground">{t('media.quick.muteHint')}</p>}
+          {op === 'loudnorm' && <p className="text-xs text-muted-foreground">{t('media.quick.loudnormHint')}</p>}
+        </div>
+
+        <div className="flex items-center gap-3">
+          <Button onClick={handlers[op]} disabled={busy || !file}>
+            {busy ? <Loader2 className="mr-1 h-4 w-4 animate-spin" /> : <Play className="mr-1 h-4 w-4" />}
+            {t('media.quick.run')}
+          </Button>
+          {status.kind === 'running' && (
+            <div className="h-1.5 w-40 overflow-hidden rounded-full bg-muted">
+              <div className="h-full bg-primary transition-all" style={{ width: `${status.progress * 100}%` }} />
+            </div>
+          )}
+          {status.kind === 'loading' && <span className="text-xs text-muted-foreground">{t('media.loadingCore')}</span>}
+        </div>
+
+        {result && (
+          <a
+            href={result.url}
+            download={result.filename}
+            className="flex items-center gap-2 rounded-md border border-border bg-card/40 px-3 py-2 text-sm hover:bg-accent/30"
+          >
+            <Download className="h-4 w-4 text-primary" />
+            <span className="font-mono">{result.filename}</span>
+            <span className="ml-auto text-xs text-muted-foreground">{(result.size / 1024 / 1024).toFixed(2)} MB</span>
+          </a>
+        )}
+      </DialogContent>
+    </Dialog>
+  )
+}
+
+function Row({ label, children }: { label: string; children: React.ReactNode }) {
+  return (
+    <div className="flex items-center gap-3">
+      <Label className="text-xs text-muted-foreground">{label}</Label>
+      {children}
+    </div>
+  )
+}
+
+function Seg<T extends string>({ value, onChange, options }: { value: T; onChange: (v: T) => void; options: [T, string][] }) {
+  return (
+    <div className="flex flex-wrap rounded-md border border-input text-sm">
+      {options.map(([v, label]) => (
+        <button
+          key={v}
+          type="button"
+          onClick={() => onChange(v)}
+          className={`px-3 py-1 transition-colors ${value === v ? 'bg-accent text-accent-foreground' : 'text-muted-foreground hover:text-foreground'}`}
+        >
+          {label}
+        </button>
+      ))}
+    </div>
+  )
+}
diff --git a/src/i18n/en.json b/src/i18n/en.json
index 0924347..6c55ddc 100644
--- a/src/i18n/en.json
+++ b/src/i18n/en.json
@@ -2026,6 +2026,26 @@
       "exporting": "Exporting… {{percent}}%",
       "errNotMedia": "{{name}} is not an audio/video file.",
       "errEmpty": "Add a clip to the timeline first."
+    },
+    "quick": {
+      "title": "Quick tools",
+      "description": "One-shot operations on a single file — no timeline needed. Everything runs locally.",
+      "pickFile": "Choose an audio / video file…",
+      "run": "Run",
+      "errPickFile": "Choose a file first.",
+      "muteHint": "Remove the audio track (video copied, no re-encode where possible).",
+      "loudnormHint": "Normalize loudness to EBU R128 (−16 LUFS).",
+      "op": {
+        "compress": "Compress",
+        "convert": "Convert",
+        "gif": "GIF",
+        "audio": "Extract audio",
+        "loudnorm": "Loudnorm",
+        "resize": "Resize",
+        "mute": "Mute",
+        "rotate": "Rotate / Flip",
+        "frame": "Frame grab"
+      }
     }
   }
 }
diff --git a/src/i18n/zh-CN.json b/src/i18n/zh-CN.json
index 2b951c7..51cfd57 100644
--- a/src/i18n/zh-CN.json
+++ b/src/i18n/zh-CN.json
@@ -2026,6 +2026,26 @@
       "exporting": "导出中… {{percent}}%",
       "errNotMedia": "{{name}} 不是音视频文件。",
       "errEmpty": "请先往时间线添加一个片段。"
+    },
+    "quick": {
+      "title": "快速工具",
+      "description": "对单个文件的一次性操作 —— 不需要时间线。全部在本地完成。",
+      "pickFile": "选择一个音视频文件…",
+      "run": "运行",
+      "errPickFile": "请先选择一个文件。",
+      "muteHint": "去掉音轨（尽量直接复制视频、不重编码）。",
+      "loudnormHint": "把响度标准化到 EBU R128（−16 LUFS）。",
+      "op": {
+        "compress": "压缩",
+        "convert": "格式转换",
+        "gif": "转 GIF",
+        "audio": "提取音轨",
+        "loudnorm": "响度标准化",
+        "resize": "缩放",
+        "mute": "静音",
+        "rotate": "旋转 / 翻转",
+        "frame": "抽帧"
+      }
     }
   }
 }
diff --git a/src/pages/Media.tsx b/src/pages/Media.tsx
index 2674398..abc79f4 100644
--- a/src/pages/Media.tsx
+++ b/src/pages/Media.tsx
@@ -1,11 +1,12 @@
 import { useEffect, useMemo, useState } from 'react'
 import { useTranslation } from 'react-i18next'
-import { Loader2, Play, Pause, Download, Trash2, Plus, Film, Music, ZoomIn, ZoomOut } from 'lucide-react'
+import { Loader2, Play, Pause, Download, Trash2, Plus, Film, Music, ZoomIn, ZoomOut, Wand2 } from 'lucide-react'
 import { toast } from 'sonner'
 import { Button } from '@/components/ui/button'
 import { Label } from '@/components/ui/label'
 import { DropZone } from '@/components/media/DropZone'
 import { OutputView, type OutputResult } from '@/components/media/OutputView'
+import { QuickToolsDialog } from '@/components/media/QuickToolsDialog'
 import { useTimeline } from '@/components/media/timeline/useTimeline'
 import { useTimelinePlayer } from '@/components/media/timeline/useTimelinePlayer'
 import { Timeline } from '@/components/media/timeline/Timeline'
@@ -29,6 +30,7 @@ export function MediaPage() {
   const [exp, setExp] = useState<ExportState>({ kind: 'idle' })
   const [output, setOutput] = useState<OutputResult | null>(null)
   const [crf, setCrf] = useState(23)
+  const [quickOpen, setQuickOpen] = useState(false)
 
   useEffect(() => {
     return () => {
@@ -96,11 +98,19 @@ export function MediaPage() {
 
   return (
     <div className="mx-auto max-w-7xl px-8 py-12">
-      <header className="mb-6">
-        <h1 className="text-2xl font-semibold tracking-tight">{t('tools.media.name')}</h1>
-        <p className="mt-1 text-sm text-muted-foreground">{t('media.description')}</p>
+      <header className="mb-6 flex items-start justify-between gap-4">
+        <div>
+          <h1 className="text-2xl font-semibold tracking-tight">{t('tools.media.name')}</h1>
+          <p className="mt-1 text-sm text-muted-foreground">{t('media.description')}</p>
+        </div>
+        <Button size="sm" variant="outline" onClick={() => setQuickOpen(true)} className="shrink-0">
+          <Wand2 className="mr-1 h-4 w-4" />
+          {t('media.quick.title')}
+        </Button>
       </header>
 
+      <QuickToolsDialog open={quickOpen} onOpenChange={setQuickOpen} />
+
       {!hasContent ? (
         <DropZone onFiles={onFiles} />
       ) : (