Audio Compressor
Compress audio file size
Click or drag audio file here
MP3, WAV, OGG, FLAC, WebM, M4A
What Is an Audio Compressor?
An audio compressor reduces the file size of audio recordings by lowering the bitrate or re-encoding the file, making it easier to store, share, and stream. Whether you have a podcast episode that is too large to email, a music file eating up storage, or a voice memo that needs to be trimmed down, Tooliva's free online audio compressor shrinks your files without requiring any software installation.
Why Use Tooliva's Online Audio Compressor?
Large audio files slow down website loads, eat into cloud storage, and fail email attachment limits. Tooliva's audio compressor processes files directly in your browser using the Web Audio API, so your recordings are never uploaded to a server. There is no sign-up, no watermark, and no file-size restriction. You get smaller audio files in seconds with complete privacy.
How to Compress Audio Online
- Upload your audio file by dragging it into the tool or clicking to browse.
- Adjust the target bitrate or quality settings to control the compression level.
- Click Compress, compare the file sizes, and download the compressed audio.
Key Features
- Browser-based compression — no downloads, no sign-up, works on any device
- Adjustable quality — control the trade-off between file size and audio quality
- WAV format output — clean, uncompressed output for further editing
- File-size comparison — see exact savings before downloading
- Private by design — your audio never leaves your browser
Common Use Cases
Podcasters compress episodes to meet platform upload limits on Spotify and Apple Podcasts. Musicians shrink demo tracks for sharing with collaborators. Journalists reduce interview recordings for faster email delivery. Teachers compress lecture recordings for LMS uploads with file-size caps. Voice-over artists prepare smaller preview files for client review.
Frequently Asked Questions
Q: What audio formats are supported?
Tooliva supports WAV, MP3, OGG, and M4A input formats. The compressed output is available as a WAV file for maximum compatibility.
Q: Will compression reduce audio quality?
Some quality reduction is possible depending on the compression level you choose. At moderate settings, the difference is barely noticeable for speech and casual listening.
Q: Is my audio uploaded to a server?
No. All processing happens in your browser using the Web Audio API. Your recordings never leave your device.
Q: What is the maximum file size?
Since processing is client-side, the limit depends on your browser and device memory. Typical podcast and music files work without issues.