Base64 to Audio
Turn a Base64 string back into a playable audio file.
—Detected format
—File size
● Your audio is processed locally in your browser and never uploaded.
How it works
The decoder accepts a full data URI or bare Base64 (standard or URL-safe, with or without line breaks). The audio format is recognized from the file's first bytes — its “magic number” — rather than trusting the label, so the downloaded file gets the right extension.