Combine Audio Files in 3 Steps
Select your tracks, set the order, and merge. The entire process happens locally in seconds.
Select Multiple Files
Click the drop zone or drag and drop several audio or video files at once. Mix MP3, WAV, AAC, FLAC, OGG, MP4, MKV, AVI and MOV freely.
Reorder Your Tracks
Each file appears in a list. Use the up ↑ and down ↓ buttons to arrange them in the exact sequence you want. Preview any track by clicking the play button.
Download Merged File
Click "Start Merge". MediaTailor converts each file to WAV, joins them seamlessly using FFmpeg concat, then encodes the final output as MP3.
Why Choose MediaTailor Merge?
Seamless, lossless concatenation with full format flexibility.
Drag-to-Reorder
Use the ↑↓ buttons to arrange files in any order before merging. Preview each track first to make sure the sequence is right.
Mix Audio & Video
Add a combination of MP3, WAV, MP4, MKV and other formats. MediaTailor automatically extracts audio from video files before joining.
No Gaps or Silence
FFmpeg concat joins audio end-to-end without adding any silence or crossfade. Perfect for audiobooks, DJ sets, and continuous music mixes.
Consistent Quality
MediaTailor normalizes all tracks to the same sample rate (44.1 kHz, stereo) before merging, ensuring a smooth and consistent output.
100% Private
All processing runs locally using FFmpeg WebAssembly. Your audio files never leave your browser — no server, no cloud, no data exposure.
Completely Free
No account, no subscription, no watermark, no file count limit. MediaTailor is free for everyone.
Works With All Major Audio & Video Formats
Add any combination of formats — MediaTailor handles the conversion automatically.
| Format | Type | Can Merge | Notes |
|---|---|---|---|
| MP3 | Audio | ✓ Yes | Direct support |
| WAV | Audio | ✓ Yes | Lossless, ideal source |
| AAC / M4A | Audio | ✓ Yes | Re-encoded to WAV then merged |
| FLAC | Audio | ✓ Yes | Lossless input |
| OGG / Opus | Audio | ✓ Yes | Converted before merging |
| MP4 | Video | ✓ Yes | Audio extracted automatically |
| MKV / AVI / MOV | Video | ✓ Yes | Audio extracted automatically |
Who Uses MediaTailor Merge?
Anyone who needs to combine multiple audio files quickly and cleanly.
Audiobook Creators
Join individual chapter recordings into a single continuous audiobook file without gaps or quality loss.
DJ & Mix Artists
Concatenate individual tracks in order to build a mix compilation or a gapless playlist export.
Podcast Editors
Merge separate interview segments, music beds, and ad spots into a final ready-to-publish episode.
Video Producers
Extract audio from multiple video clips and join them into a single audio file for further editing or publishing.
Frequently Asked Questions
Everything you need to know about merging audio files with MediaTailor.