Convert any plain text string to its Base64 representation instantly. Useful for embedding data in JSON, HTML, or API payloads.
Paste any Base64-encoded string and decode it back to human-readable text with one click.
Correctly handles Unicode and UTF-8 characters including emojis, Chinese, Arabic, and other non-ASCII text.
Upload a file and encode it as Base64 — useful for embedding images or documents in data URIs or API calls.
Base64 is an encoding scheme that converts binary or text data into a string of ASCII characters. It is commonly used in emails, JWTs, data URIs, and API authentication.
No. Base64 is encoding, not encryption. Anyone can decode a Base64 string without a key. Do not use it to secure sensitive data.
JWTs use Base64url encoding (a URL-safe variant of Base64) to encode the header and payload, making them compact and safe to transmit in URLs and HTTP headers.