Free audio tools that run in your browser
Files are processed on your device, never uploaded. No sign-up and no size limits.
Audio Converter
Convert between MP3, WAV, FLAC, M4A and OGG.
Compress Audio
Shrink music files by adjusting quality.
MP3 Cutter
Trim any part of a song into a ringtone or clip.
About EazyAudio
What it means to run a converter in the browser
Most online audio converters work by uploading your file to their servers. That is where the size caps, the daily conversion limits and the queues at busy times come from. It also means handing a recorded meeting, a phone call or a personal voice memo to a machine you know nothing about.
EazyAudio downloads the conversion engine — a WebAssembly build of FFmpeg — into your browser and runs it there. Your file never leaves the device, so there is no upload wait, no size ceiling and no queue. The trade-offs are honest ones: the engine has to be fetched once, and conversion speed depends on your hardware rather than a server's.
What people use it for
Format conversion is the common case: turning an iPhone voice memo (M4A) into an MP3 a car stereo will play, expanding an MP3 to lossless WAV for editing, or making a portable copy from a FLAC archive. Dedicated pages exist for each pairing so you can land directly on the one you need.
Beyond that there is compression — lowering the bitrate to shrink a file — and trimming, which keeps only the section you want. Trimming is mostly used for making ringtones and for pulling the useful part out of a long recording. Extracting the audio track from a video file works the same way.
What happens to the audio quality
Going from lossless (WAV, FLAC) to a lossy format (MP3, AAC, OGG) discards some detail permanently. At 192kbps and above the result is hard to distinguish from the original in ordinary listening, but if there is any chance you will edit the file later, keep the original.
Converting between two lossy formats — MP3 to OGG, for example — compresses the audio a second time, and the losses accumulate. Avoid round trips; go from the original straight to the format you need. Moving between lossless formats (WAV and FLAC) can be repeated indefinitely with no change at all.
Frequently asked questions
- Are my files uploaded to a server?
- No. Everything runs inside the browser. Open your developer tools, watch the Network tab while you work, and you will see no request carrying your file.
- Why is the first conversion slow?
- That is the audio engine being downloaded into your browser. Once it is cached, later conversions start immediately. The download is the engine itself and has nothing to do with your audio file.
- Are there size or usage limits?
- No server limits. Processing uses your device's memory, though, so a very long file can exhaust what the browser has. There is no sign-up, no payment, no conversion cap and no watermark.
- Does it work on a phone?
- Yes, though phones have less memory, so long files can fail, and switching away to another app for a while may cause the browser to suspend the work. For long recordings a computer is more reliable.