Free Online Audio Tools — Trim, Convert, Merge & Edit Audio

EzyIMG's audio tools let you edit, convert, and process audio files entirely in your browser using FFmpeg WebAssembly. Trim MP3 files without re-encoding, convert between any major audio format, boost or reduce volume, merge multiple audio tracks, or add a background music layer to a video. No software to install, no account required, and your audio files never leave your device.

The Audio Converter is the most versatile tool in this set, supporting conversion between MP3, WAV, FLAC, OGG Vorbis, M4A, AAC, and OPUS. Each format has a specific use case: MP3 is the most universally compatible format for music and podcasts; WAV and FLAC are lossless formats ideal for archiving and professional audio editing workflows; OGG and OPUS are open-source formats optimized for streaming and web audio. Converting between them takes seconds in any modern browser without installing a codec pack or audio editor.

The Add Audio to Video tool is particularly useful for content creators who record video and audio separately — for example, a screencast recording with no microphone audio, or a video that needs a background music track added. Upload the video and audio file, choose whether to replace the existing audio track or mix them, and download the result. Like all EzyIMG tools, this runs entirely in your browser: your video and audio files never leave your device, making it safe for confidential meeting recordings, personal videos, and proprietary content.

Audio EditorTrim audio clips, change speed, adjust volume — all in one editor.Add Audio to VideoAdd or replace a background music track or voice-over in any video.Change VolumeBoost, reduce or mute audio and video file volume with a slider.Audio CutTrim audio files by setting precise start and end times.Merge AudioJoin multiple audio files sequentially or mix them simultaneously.Audio ConverterConvert between MP3, WAV, FLAC, OGG, M4A, AAC and OPUS formats.

Why Use EzyIMG for Audio Tasks?

  • Files never leave your device. All audio processing runs in your browser using FFmpeg WebAssembly. No audio file is uploaded to any server — this is especially important for private recordings, interviews, and confidential audio content.
  • No account required. All 6 audio tools are available without registration or sign-in. No usage limits or free tier restrictions.
  • No watermark on any output. Every audio file you process is downloaded without any EzyIMG branding or added audio signature.
  • Works on any device. EzyIMG audio tools run in any modern browser on desktop and mobile — no audio codec or software installation required.

Related Guides