Audio Merger & Joiner

About the Audio Merger & Joiner

Add as many MP3, WAV, M4A, OGG or FLAC files as you like, reorder them, then join them into a single continuous WAV. Insert silence between tracks, crossfade one clip into the next and normalise the peaks so every part sits at the same level — all rendered offline in your browser.

Keyboard shortcuts

• Copy the main outputCtrl / ⌘ + Shift + C
• Download the resultCtrl / ⌘ + S
• Share this toolCtrl / ⌘ + Shift + S
• Reset the inputsAlt + R
• Open the tool search paletteCtrl / ⌘ + K

Frequently asked questions

Read more

• How to edit videos and enhance audio completely offline in your browser

  Trim on a visual timeline, reframe for Reels or YouTube, grade colour, add text and music, then clean up voice recordings with EQ, loudness normalisation and ID3 tags — without uploading a single file.

• Converting audio in the browser: bitrates, sample rates and when lossless matters

  MP3, M4A, OGG, WAV and FLAC each have a job. Here is how to pick one, what bitrate to use, and how ffmpeg.wasm converts files without an upload.

• Preview before you export: why audio tools need a play button

  Scrubbing, in/out handles and instant playback turn guesswork into precision when you trim or join audio in the browser.

• MP3, WAV, FLAC, M4A and OGG: which audio format to use when

  A practical guide to lossy vs lossless, bit depth, sample rate and why browser tools tend to hand you a WAV at the end.

• How to trim and join audio files without installing anything

  Cut a clip, fade it in, join several tracks with a crossfade and export a WAV — using nothing but the Web Audio API in your browser.