Most free audio trimmers only let you cut once. MP3 Studio lets you mark multiple sections to remove — all at once, with 2000× precision zoom so you can trim to the exact millisecond. Everything runs in your browser. Your audio never leaves your device — no server upload, no account, no file size limit. Works with MP3, WAV, M4A, FLAC, OGG and more. Preview your edits before you export.