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Base64 Encode & Decode
Encode text to Base64 or decode Base64 back to text with full Unicode support. All processing happens locally in your browser — no uploads.
Encode API tokens, data URIs, email attachments, or config values — and decode Base64 payloads during debugging — without pasting sensitive data into an online service.
How to use Base64 Encode & Decode
- Paste or type your text (or Base64 string) into the input area
- Click "Encode to Base64" to convert text into Base64
- Click "Decode from Base64" to convert Base64 back into text
- Copy the result from the output area with the Copy button