Gratis Audio Joiner
Merge multiple audio files into one, in any order, with optional crossfade. Export as MP3, M4A, or WAV. Runs entirely in your browser — no upload.
Slip filer her, eller klik for at gennemse
MP3, WAV, FLAC, OGG, AAC, M4A, Audio ingen filstørrelsesbegrænsning
Du kan slippe flere filer på én gang
Dine filer forlader aldrig din enhed. Al behandling sker lokalt i din browser.
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Sådan fungerer det
Stitching audio files together normally means an upload to an ad-heavy site. This merges them with the real FFmpeg engine running in your browser.
- 1FFmpeg.wasm loads onceThe WebAssembly build of FFmpeg (~30 MB) downloads on first use and is cached afterwards.
- 2You add and order your filesDrop in multiple audio files and arrange them with the up/down controls. Nothing is uploaded.
- 3FFmpeg concatenates themThe tracks are joined in order — back-to-back, or with a smooth crossfade between each — using FFmpeg's concat/acrossfade filters, all on your CPU.
- 4Download the merged fileThe result is encoded once to MP3, M4A, or WAV and offered for download.
No upload, no queue, no watermark. Combine podcast segments, voice memos, or music privately — your audio never leaves your device.
Hvorfor bruge vores?
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