Two-file workflow
Join an intro and recording, or consecutive interview clips.
VoysumPrivate browser tool
Audio Merger
Select two recordings, place the second after the first, and download one combined MP3.
No uploadNo accountFree to use
✓ Runs locally in your browser
↥Choose or drop a fileaudio/*, .mp3, .wav, .m4a, .webm · up to 500 MB
🔒 Your media file is never uploaded to Voysum.
Private by default
Useful conversion without giving up your file.
Format handling
Inputs can use different supported audio formats.
Browser-only merge
Neither source file is uploaded.
Common questions
Audio Merger FAQ
How local browser processing works and what to expect.
Can the two files have different formats?
Yes. Both inputs are decoded before being joined and encoded as MP3.
Does the second file start immediately?
Yes. It is placed directly after the first file without an inserted gap.
Keep working
Related free tools
Free browser tool
Video Merger
Join two compatible MP4 videos locally without uploading them.
Open tool →Free browser toolVideo to Audio Extractor
Extract audio from video locally in your browser. Your file is never uploaded.
Open tool →Free browser toolMP4 to MP3 Converter
Convert MP4 video to MP3 locally in your browser with no file upload.
Open tool →Turn your audio into a searchable transcript.
Voysum can transcribe the converted recording and create subtitle files.
Transcribe audio