Batch convert audio with adjustable bitrate, WAV and AIFF output controls, source-setting retention, and file-size estimates in your browser.
Drop an audio or MP4 file here to convert, or import from:
An online audio converter changes an audio file from one format to another so it works with the player, editor, device, or publishing workflow you need.
This converter supports batch processing, format-specific output controls, compatible source-parameter retention, and size estimates before encoding. Files selected from your device are processed locally in the browser.
Convert one file or process up to 10 files sequentially, then download each result or collect the batch in a ZIP archive.
Set MP3, AAC, and OGG bitrate, or configure WAV and AIFF sample rate, bit depth, and mono or stereo output.
Retain detected bitrate, sample rate, bit depth, and channel count where the selected output supports them.
Preview the expected size of one file or a complete batch before starting browser-based encoding.
Choose the output based on compatibility, file size, and whether your next step needs compressed or lossless audio.
Use Single File or Batch Convert, add supported media, and let the converter detect each source format and technical parameters.
Select the output, adjust bitrate or PCM details, or retain compatible source settings. Review the size estimate before encoding.
Start sequential local processing, preview a single result, or download batch files individually or together as a ZIP.
Search results for exact format pairs favor dedicated workflows because the reason for converting changes with each source and output.
Make Apple recordings, podcasts, and music easier to play on older devices, car stereos, and apps that expect MP3.
Compress large uncompressed recordings and masters into smaller files for sharing, publishing, and portable playback.
Create an uncompressed working file for a DAW, editor, transcription tool, dataset, or WAV-only delivery requirement.
Turn game, web, and compatible voice-note audio into a format with broader consumer-device support.
Keep a lossless FLAC archive while making a smaller bitrate-controlled MP3 copy for phones, cars, and everyday listening.
Prepare an M4A recording for editing, mastering, transcription, or production software that prefers PCM WAV.
No format is best for every job. Use compressed formats for distribution and lossless or uncompressed formats for masters and editing.
| Format | Quality and size | Best for |
|---|---|---|
| MP3 | Lossy, small | Universal playback, sharing, websites, cars, and older devices |
| WAV | Uncompressed, large | Editing, DAWs, mastering, transcription, and production handoff |
| M4A | Usually AAC, small | Apple devices, mobile playback, podcasts, and compact music files |
| ALAC | Lossless, medium to large | Apple Music libraries, Apple devices, and lossless archiving |
| FLAC | Lossless, medium to large | Archiving, high-quality music libraries, and future conversion |
| OGG | Lossy, small | Games, web projects, Linux, and open-source workflows |
| AAC | Lossy, small | Streaming, mobile devices, and online video workflows |
| AIFF | Uncompressed, large | Apple-based production, DAWs, and studio interchange |
| WMA | Usually lossy, small | Legacy Windows libraries and older compatible players |
| Opus | Lossy, very small | Voice messages, conferencing, browser recordings, and streaming |
| AMR | Lossy narrowband speech, very small | Legacy phone recordings, voicemail, and telephony archives |
Converting a lossy source such as MP3, AAC, M4A, OGG, Opus, or most WMA files to WAV or FLAC does not restore audio detail already removed by compression.
You can import MP3, WAV, M4A, FLAC, OGG, AAC, AIFF, WMA, Opus, AMR, and MP4. Audio outputs are MP3, WAV, M4A, ALAC, FLAC, OGG, AAC, AIFF, WMA, Opus, and AMR.
MP3 has the broadest compatibility. M4A and AAC are efficient choices for modern and Apple devices, while OGG and Opus work especially well in web, game, messaging, and open-source workflows.
WAV and AIFF are widely accepted uncompressed editing formats. FLAC is useful for lossless storage, but some older editors and hardware work more reliably with WAV.
No converter can recreate detail that a lossy source has already discarded. Converting a high-quality lossless source to another lossless format can preserve its decoded audio, while converting to MP3, AAC, M4A, OGG, Opus, WMA, or AMR introduces lossy compression.
The conversion does not remove more detail when stored as WAV or FLAC, but it also cannot restore information already lost in the MP3. The new file will usually be larger without sounding better.
Files selected from your device are processed locally in the browser. Files imported through a link, Dropbox, or Google Drive first use that provider and the configured import service.
Single files are limited to 200 MB and a batch is limited to 10 files or 500 MB total. Processing still depends on available browser memory, so large batches are more reliable on desktop.
Yes. Batch Convert accepts up to 10 files, processes them sequentially to reduce browser memory pressure, and provides individual downloads plus a ZIP archive.
Yes. Choose from common bitrate presets or keep the detected source bitrate when it is compatible with the selected output.
Yes. Set sample rate, bit depth, and mono or stereo channels, or keep compatible parameters detected from each source file.
It is a planning estimate based on detected duration and current settings. Lossless compression and content complexity can make the final size differ from the estimate.
No. The converter can process supported audio files that the browser decoder can read, but it cannot remove DRM or convert protected subscription downloads.
No. The converter runs in a modern browser and does not require an account, desktop installation, or watermark.
Convert MP3, WAV, M4A, FLAC, OGG, AAC, AIFF, WMA, Opus, and AMR, with optional MP4 audio input and ALAC output.
Convert MP4, MOV, AVI, MKV, WEBM, FLV, or WMV entirely in your browser.
Detect monophonic pitch, clean up timing, transpose notes, preview the result, and export a standard MIDI file.
