Mergers
Audio Joiner
Join multiple audio files from any supported format into a single file. Choose your output format and reorder files before joining.
Output
🔒 Your audio files are processed locally in your browser and are never uploaded to any server.
How to use
- 1.Choose output format — Select MP3, WAV or OGG as your output.
- 2.Add files — Drop multiple audio files or click to browse. Mix and match formats.
- 3.Reorder — Use ▲ / ▼ to arrange files in playback order.
- 4.Join and download — Click "Join" and download the merged file.
Features
Supports MP3, WAV, FLAC, M4A, OGG, Opus input
Output to MP3, WAV or OGG
Reorderable file list
Shows duration and size per file
Total duration summary
100% browser-based — no upload
Supported formats
MP3WAVFLACM4AOGGOpusAACWebM
FAQ
Can I mix different audio formats?
Yes. You can upload MP3, WAV, FLAC, M4A and OGG files in the same batch. All files are decoded and re-encoded to your chosen output format.
Does the order of files matter?
Yes. Files are joined in the order shown in the list. Use the ▲ / ▼ buttons to rearrange them before joining.
What is the difference between Audio Joiner and MP3 Merger?
The Audio Joiner supports multiple input formats and lets you choose the output format. The MP3 Merger is dedicated to MP3-only input and output.