Online Audio Tools
Trim, merge, compress, convert and normalize your audio right from your browser — on any device. Fast, free, and completely private.
All audio tools
Pick a task and get a result in seconds.
Trim Audio
Cut a clip to a start and end point on the waveform — in your browser.
Merge Audio
Join multiple tracks into one, with an optional crossfade.
Compress Audio
Shrink file size by lowering the bitrate to MP3 or AAC.
Convert Audio
Convert between MP3, WAV, AAC, OGG and FLAC.
Normalize Audio
Even out loudness to a streaming, podcast or broadcast target.
Fade In / Out
Add smooth fades to the start and end of a track.
Change Speed
Speed up or slow down without changing pitch.
Adjust Volume
Boost or reduce the overall loudness by decibels.
How to edit audio online
Four steps, no account required.
Pick a tool
Choose trim, merge, compress, convert or normalize — each a focused, single-purpose page.
Drop your audio
Drag a file onto the upload zone. It loads straight into your browser — no upload wait.
Adjust & process
Set your options and let FFmpeg.wasm do the work locally, usually in seconds.
Download
Grab your result instantly, then jump to a related tool if you need one more edit.
Frequently asked questions
No. Every audio tool runs entirely in your browser using FFmpeg.wasm. Your file is read into memory on your own device and never leaves it — the only network call is an anonymous usage counter.
Yes. Because processing happens on your device, there's no server cost, so the core tools are free. A Premium plan adds larger files, batch jobs and a server-side fallback.
MP3, WAV, AAC, OGG and FLAC are supported for input, with MP3, WAV, AAC, OGG and FLAC available as output depending on the tool.
On the free tier the limit is around 200MB. Audio is far lighter than video for in-browser processing, so most jobs finish in seconds.
No account is needed for single-file jobs. Signing up (free) adds job history and removes the watermark on basic tools.
Ready to edit your audio?
Free to use, private by design, and ready in your browser right now.
Get started