Local processing
Free Audio Converter Online
Convert, trim, fade and normalize audio locally in your browser.
Private Browser-Based Processing
KivLoft processes the audio you choose in your browser. The file is decoded, edited and exported on your device; it is not uploaded to a KivLoft server for conversion. That is useful for draft voice lines, unreleased game audio and client material that should not leave your workstation. Your browser may ask for permission to save multiple downloads, but the completed file is created locally.
Start with WAV, MP3, OGG, Opus, M4A/AAC or FLAC when the current browser can decode the file. WAV and MP3 exports are built in, and FLAC export runs through a local browser encoder. OGG and Opus choices appear only when the browser exposes the required encoding support, so the tool does not claim a format is available when it is not. Keep the original source file: conversion creates a new download and never overwrites the file you selected.
For a dependable export, begin with the shortest useful source range and choose the channel mode deliberately. Mono can suit a compact UI cue, while stereo may matter for music, ambience or positional effects. Preserve the original sample rate when it already suits the target, or choose 22.05 kHz, 44.1 kHz or 48 kHz for a specific delivery need. The preview uses the same edited audio buffer that the export uses, so it is the right place to catch an unwanted fade, a clipped ending or a selection that is too short.
Audio Converter for Game Developers
Convert sound effects, music and voice recordings into formats supported by Godot, Unity, Unreal Engine and web games. A practical workflow starts with a clean source, then exports a delivery copy for the target project. For example, keep a WAV master for edits, make an OGG copy for a game-audio pipeline that accepts it, or create an MP3 delivery file when broad player support is the priority.
The editor is useful before import as well as after it. Trim silence from the beginning and end of a UI sound, select only a line of dialogue, add a short fade to prevent a click, or normalize a batch of raw effects to a controlled peak. These edits prepare the file; they do not replace mixing and loudness decisions inside the game engine. Test the exported file in the actual project because import settings, looping and platform support still matter.
Adjust quality and bitrate
MP3 bitrate is selectable from 128 to 320 kbps. Higher bitrate generally keeps more detail and creates a larger file; lower bitrate can save space but may make artifacts more audible. Choose it from a listening test with the real effect, voice line or music track. WAV and FLAC are lossless output choices, while OGG and Opus use the browser's available codec settings.
Preview before downloading
Use Preview selection before export to hear the selected range with its fades, gain, channel mode and normalization settings. This is especially helpful for loops and short effects, where a few milliseconds can change the result. When it sounds right, download the finished file directly from the browser.
About this tool
Free browser audio converter for MP3, WAV, OGG and FLAC files. Trim, fade, normalize and export audio locally without uploading it.
What you can do
- Convert WAV to MP3, MP3 to WAV, MP3 to FLAC or FLAC to WAV with local browser processing.
- Open WAV, MP3, OGG, Opus, M4A/AAC and FLAC files when your browser can decode them.
- Export WAV, MP3 and lossless FLAC on every supported browser; OGG and Opus exports appear when browser encoding is available.
- Trim a selection, add fades, normalize volume and choose MP3 bitrate before download.
How to use it
- 1Choose an audio file from your device.
- 2Set the selection, fades, normalization and export format.
- 3Preview the result, then download the finished audio file.
Frequently asked questions
Is this audio converter free?
Yes. The tool is free to use in your browser.
Are my audio files uploaded to a server?
No. The selected file is processed locally in your browser.
How do I convert MP3 to OGG?
Choose an MP3 file, select Ogg Vorbis when your browser offers it, then export the result.
Which audio format is best for Godot?
Use the format that fits your Godot import and platform settings; WAV is useful as a source and OGG is a common compressed delivery choice.
Does converting audio reduce quality?
Lossy exports such as MP3 can reduce quality. WAV and FLAC output avoid additional lossy compression.
Can I trim audio before converting it?
Yes. Set the start and end of the selected range before exporting.
What is the difference between WAV, MP3 and OGG?
WAV is uncompressed, MP3 is widely supported lossy audio, and OGG is a compressed format commonly used in game workflows.
What is the maximum supported file size?
The local tool limit is 100 MB per selected audio file.