Is there an Online-Convert alternative that does not upload my files?

Yes. This audio converter runs entirely inside your browser, so the file never leaves your device. You can confirm it by loading the page, disconnecting from the internet, and converting a file anyway.

Audio between common formats. It does not handle video, documents, archives or ebooks. For that much wider range of file types, Online-Convert is the better fit.

Is there a daily limit?

No. There is no daily conversion cap and no account gate. Large files are slower because the work happens on your own device rather than on a server, so very long recordings will take a moment.

Does it cost anything?

No. There is no paid tier, no account and no daily quota. It is free to use as much as you like.

What audio formats are supported?

You can convert out to MP3, WAV, M4A or OGG, and most common audio files are accepted as input. Pick the file and choose the format you want out. For other kinds of conversion, browse the full catalogue of tools .

An Online-Convert alternative that keeps files on your device

Convert audio between formats in your browser. Free, no account, nothing uploaded.

Audio

Drop an audio or video file here or click to browse

or paste from clipboard (Ctrl+V) · MP3, WAV, M4A, OGG, and video files

Files stay in your browser. Nothing is uploaded.

Output format

Bitrate

Higher bitrates sound better and make larger files.

How it compares to Online-Convert

Feature	Online-Convert	Super Boring Tools
Where it runs	Uploaded to their servers	In your browser
Files leave your device	Yes, every file is uploaded	Never
Audio conversion	Yes	Yes
Video, document and archive formats	Yes	No
Import from cloud storage	Yes	No
Free daily conversion limit	Capped	None
Account required	For more conversions	Never
Price	Free tier, then paid	Free, no tiers
Everything else you might need	Conversion only	A whole catalogue of tools

When to use Online-Convert instead

You need to convert video, documents or archives

Online-Convert handles a very wide range of file types. We convert audio and a few others, so for anything outside that they are the tool to reach for.

You want cloud imports and conversion presets

It pulls files straight from cloud storage and offers device-specific presets that we do not. If that fits your workflow, they earn the upload.

Frequently asked questions

Is there an Online-Convert alternative that does not upload my files?: Yes. This audio converter runs entirely inside your browser, so the file never leaves your device. You can confirm it by loading the page, disconnecting from the internet, and converting a file anyway.
What can it convert?: Audio between common formats. It does not handle video, documents, archives or ebooks. For that much wider range of file types, Online-Convert is the better fit.
Is there a daily limit?: No. There is no daily conversion cap and no account gate. Large files are slower because the work happens on your own device rather than on a server, so very long recordings will take a moment.
Does it cost anything?: No. There is no paid tier, no account and no daily quota. It is free to use as much as you like.
What audio formats are supported?: You can convert out to MP3, WAV, M4A or OGG, and most common audio files are accepted as input. Pick the file and choose the format you want out. For other kinds of conversion, browse the full catalogue of tools.