Get audio from video & convert clips
Pull sound out of a video, make a shareable GIF, or trim an audio file — without uploading large media to a server.
By goal
- Save a video's soundtrack as MP3 → Video to MP3
- Turn a short clip into a GIF → MP4 to GIF
- Trim, cut or fade an audio file → MP3 Editor
Notes
These run in the browser using WebAssembly/Web Audio. Large videos take longer because all the work happens on your own device — but nothing is uploaded, and there is no file-size account limit.
Related guides
All task guides · Multimedia category · Knowledge pack root
想直接算一次？開啟工具 全程瀏覽器本地運算，資料不上傳
機器可讀原始檔（供 AI 檢索）：/okf/guides/audio-and-video.md