🎚️

مفت Audio Speed Changer

Speed up or slow down audio with the pitch preserved (great for podcasts) or shifted. Export as MP3. Runs entirely in your browser, no upload.

فائل سائز کی کوئی حد نہیںفائلیں نجی رہتی ہیںلاگ ان کی ضرورت نہیںہمیشہ کے لیے مفت

فائلیں یہاں ڈراپ کریں یا براؤز کے لیے کلک کریں

MP3, WAV, FLAC, OGG, AAC, M4A, Audio فائل سائز کی کوئی حد نہیں

فائلیں براؤز کریں

آپ کی فائلیں کبھی آپ کے ڈیوائس سے نہیں نکلتیں۔ تمام پروسیسنگ آپ کے براؤزر میں مقامی طور پر ہوتی ہے۔

Speed up or slow down audio — keep the natural pitch (great for podcasts and audiobooks) or shift the pitch. Runs entirely in your browser.

Optimize for your platform

یہ کیسے کام کرتا ہے

Changing audio speed can either keep the pitch natural (so a sped-up voice doesn't sound like a chipmunk) or shift it (the classic record speed-up). This does both with FFmpeg in your browser.

  1. 1
    FFmpeg.wasm loads once
    The WebAssembly build downloads on first use and is cached afterwards.
  2. 2
    You pick a speed and pitch mode
    From 0.5× to 3×, with "keep natural pitch" on or off. The file stays in your browser.
  3. 3
    FFmpeg re-times the audio
    Natural-pitch mode uses chained atempo filters (time-stretch); pitch-shift mode uses asetrate (speeds and pitches together).
  4. 4
    Download the MP3
    The result is encoded to MP3 and previewed with the built-in player.

Speed up a podcast or audiobook, or make a "slowed + reverb"/"nightcore" edit, entirely on your device — nothing is uploaded.

ہمارا کیوں؟

Completely free — no hidden costs, ever
No account, email, or login required
Files stay on your device — processing happens in your browser
Works on any device — phone, tablet, desktop
No watermarks on any output
Browser memory limits may apply for very large files

متعلقہ آلات

کیا یہ آلہ مددگار تھا؟

اکثر پوچھے جانے والے سوالات