Mac app · Audio

SoundSwap app icon

SoundSwap

Quick audio conversion for Mac.

Convert audio formats in seconds. Drag in your audio, choose a format, and SoundSwap handles the rest — no account, no clutter.

MP3 · M4A · WAV · FLAC · OGG

Get SoundSwap See how it works
  • Secure & private
  • Fast local processing
  • No sign-up required
SoundSwap main window with a single audio file ready to convert

Simple & focused

Drop audio. Choose a format. Convert.

  1. Drop audio

    Drag a file onto the window or use Choose Files. With Plus: multiple files, a folder, or a ZIP.

  2. Choose your format

    Pick MP3, M4A, WAV, FLAC, or OGG — and where to save: Downloads, the source folder, or a custom folder.

  3. Convert

    Validated output with collision-safe naming. Start a fresh run anytime with Start Over or ⌘N.

Audio files ready to drop into SoundSwap for conversion

Fast local conversion

Audio is converted on your Mac. Nothing is uploaded to a cloud service.

Five formats, full cross-convert

Convert between MP3, M4A, WAV, FLAC, and OGG (Ogg Vorbis) in any direction.

Batch queue Plus

Process multiple files in one run with per-file progress and status.

Folder + ZIP intake Plus

Drop a folder or ZIP archive — SoundSwap scans for supported audio and builds your queue.

Your destination

Save to Downloads, the same folder as the source, or a custom folder you pick.

Quality controls

MP3 and OGG bitrate presets from 128 to 320 kbps. M4A, WAV, and FLAC stay lossless.

Built for the Mac

Native queue controls, ⌘Z undo for queue edits, and ⌘N to start a new conversion.

Light & dark

System, Light, or Dark appearance — plus optional reveal-in-Finder after conversion.

Optional unlock

Convert more at once.

Single-file conversion stays free. SoundSwap Plus is a one-time purchase — not a subscription — that unlocks batch workflows on your Mac.

Drop a group of files, a folder, or even a ZIP. SoundSwap finds the supported audio and builds the queue for you.

  • Batch audio conversion with a sequential conversion queue
  • Folder intake with recursive scanning for supported formats
  • ZIP archive intake — extract and scan for audio inside
  • Per-file progress, status, and queue management
  • Remove pending items; ⌘Z undo restores accidental removals
  • One output format and destination for the whole batch run
MP3, M4A, WAV, and FLAC audio format icons
SoundSwap Plus batch queue with multiple audio files

Supported formats

Any input to any output

MP3 · M4A · WAV · FLAC · OGG

Full cross-format support among these five types. Unsupported files are not silently imported.

Format In Out
MP3YesYes
M4AYesYes
WAVYesYes
FLACYesYes
OGGYesYes (Vorbis)

Requires macOS 14.0 or later · Mac (Apple Silicon or Intel)

Private by design

Your audio stays on your Mac.

Privacy policy

SoundSwap processes files locally. Your audio isn't uploaded to a conversion service — no analytics SDK, no tracking, no account required.

Help & feedback

Support

Email support

FAQs

Quick answers about formats, local conversion, SoundSwap Plus, and privacy.

Browse FAQs

Report a bug

Tell us what went wrong with a conversion, queue, or output file.

Report a bug

Request a feature

Share an idea for formats, batch workflows, or quality-of-life improvements.

Suggest a feature

Common questions

FAQs

Supported formats
Does SoundSwap upload my audio files?

No. SoundSwap converts the files you select on your Mac. Audio is not uploaded to MX Labs servers for processing.

Is batch conversion included for free?

Single-file conversion is free. Batch queues, folder intake, and ZIP archives are part of SoundSwap Plus — a one-time App Store purchase, not a subscription.

Which audio formats does SoundSwap support?

MP3, M4A, WAV, FLAC, and OGG (Ogg Vorbis) — any supported input can convert to any supported output.

How do I start a new conversion after finishing one?

Use the Start Over button in the header or press ⌘N (File → New Conversion). Your format, destination, and bitrate preferences stay put — only the current run is cleared.

Do I need an account?

No. SoundSwap works without signing in to an MX Labs account.

Where can I read the privacy policy?

See the SoundSwap section of the MX Labs Privacy Policy.

Troubleshooting

Report a bug

Clear reports help reproduce conversion issues faster. Include the details below, then email support.

Mac & build

  • Mac model e.g. MacBook Pro 14" M3
  • macOS version Apple menu → About This Mac
  • SoundSwap version SoundSwap → About SoundSwap

What went wrong

  • Input file & format Original filename and format (MP3, M4A, WAV, FLAC, OGG)
  • Expected output Format, folder, and naming you expected
  • What happened instead Failed conversion, wrong file, queue stuck, etc.
  • Steps to reproduce Numbered steps from opening SoundSwap if possible
Optional attachment A screenshot of the window or the problem file makes hard-to-reproduce issues much easier to fix.
Email a bug report

Request a feature

Ideas are welcome — especially new formats, batch workflow improvements, and export options. Not every request can be built, but clear feedback helps shape the roadmap.

Suggest a feature

Get in touch

Email support@mxlabs.app. Replies are usually sent as soon as practical. For privacy details, see the SoundSwap privacy section.

Email support

Independently developed by MX Labs. Replies may not be instant — thank you for your patience. Clear bug reports with your Mac model, macOS version, SoundSwap version, input/output formats, and steps to reproduce help the most.

Credits

Open source

Open Source & Licenses

SoundSwap is built with open-source audio technologies. MP3 conversion is powered in part by the LAME audio encoder.