MP3 → Base64
MP3 を Base64 にエンコードします。CSS にインライン化したり、JSON 設定や API テストに直接貼り付けたりするのに向いています。
AK
appkiro.comOutput works as a data:audio/mpeg;base64,... URL when prefix is on.
For pure-text payloads use the Text to Base64 tool, or recover an inline asset with Base64 to Image.
Encode an MP3 file into Base64. Keep the data: prefix enabled to drop the result into an audio tag, or turn it off for a raw payload suited to JSON fields or environment variables. The bytes are encoded as-is — no re-encoding happens.
Concatenate the result onto data:audio/mpeg;base64, and assign it to the src of an audio element to play short jingles inline without a separate network request.
No. Encoding runs locally in this tab — nothing is uploaded.
Browser memory is the cap; up to roughly 50 MB encodes comfortably. Long full-length tracks may strain the browser.
No. The bytes are encoded as-is. Compress the MP3 first if size matters.
audio/mpeg. Some servers report MP3 as audio/mp3; switch the data URL prefix manually if a player needs that exact value.