Audio Converter | Convert MP3, WAV, FLAC, AAC & More Free

Upload audio files

Drop or click to add one or more audio files

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How to use Audio Converter

1
Upload one or more MP3, WAV, AAC, OGG, FLAC, or M4A files.
2
Choose the output format for each file, or apply one format to the full batch.
3
Optionally open Advanced options to choose a codec, adjust volume, add fades, reverse, or trim the audio.
4
Select Convert; one result downloads directly and multiple results download as a ZIP archive.

What Else You Can Do

Format-aware codec selection.
Volume adjustment from 0% to 300%.
Fade in, fade out, reverse, and precise trim controls.
Batch conversion with automatic ZIP packaging.

Convert Audio Files Online; MP3, WAV, FLAC, AAC, OGG and M4A

Convert MP3, WAV, AAC, OGG, FLAC and M4A with trim, volume, fade, reverse and codec controls. Use the controls shown on the page, process the selected file or files, and download the result.

Set per-file formats, volume from 0% to 300%, fades, reverse, trim and format-compatible codecs. FLAC, ALAC and compatible copy modes provide lossless choices when the source and settings allow it. Upload multiple files and batch-process them for free, with no sign-up or ToolSpice watermark.

Frequently Asked Questions

Which audio formats can I convert?

The tool accepts and produces MP3, WAV, AAC, OGG, FLAC, and M4A files. Available codec choices automatically change with the selected output format.

Can I convert several audio files together?

Yes. Add up to 20 files to a batch. When more than one file is processed, the converted results are returned in one ZIP archive.

What does the Auto codec option do?

Auto selects the recommended, widely compatible encoder for the output container, such as MP3 LAME for MP3, PCM for WAV, AAC for M4A, Vorbis for OGG, or FLAC for FLAC.

Can I make the audio louder?

Yes. Volume can be set from 0% to 300%. A setting of 100% keeps the original level, 200% doubles it, and 50% halves it. Very high settings can cause clipping if the source is already loud.

Can I trim or reverse an audio file?

Yes. Enter exact start and end timestamps to keep one section, enable reverse to play it backwards, and optionally add a short fade at either end.

Are uploaded audio files kept?

No. Files are stored temporarily for processing and removed after the download response is completed.