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Encode and decode Base64 strings
Uses '-' and '_' instead of '+' and '/' for URL compatibility
Breaks output into lines for email/MIME compatibility
Drag & drop a text file here, or click to select
Supports: .txt, .json, .csv, .html, .xml (max 50MB)
Discover the powerful capabilities of our base64 encoder/decoder.
Encode text to Base64 or decode Base64 back to original text with instant results and error handling.
Support for standard Base64, URL-safe Base64, and MIME Base64 with line wrapping options.
Instant encoding and decoding as you type with live validation and error detection.
All processing happens locally in your browser - no data is sent to servers for maximum privacy.
Follow these steps to get started
Select whether you want to encode text to Base64 or decode Base64 to text.
Paste or type your text (for encoding) or Base64 string (for decoding) in the input area.
Choose between standard Base64, URL-safe Base64, or MIME Base64 with line wrapping.
View the converted result instantly with options to copy, download, or clear the output.
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Your feedback helps us improve the tool and provide a better experience for everyone.
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