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Base64 encode / decode
Encoding
Encode arbitrary text to base64 or decode base64 back to text. Standard and URL-safe variants. UTF-8 aware. All conversion happens in your browser.
Plain textBase64
Plain text
Base64
SGVsbG8sIHdvcmxkIQ==
Encoding uses TextEncoder (UTF-8) so emoji and non-ASCII characters round-trip cleanly. URL-safe variant uses - / _ instead of + / / and drops padding.