Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 strings back to text. Supports UTF-8 Unicode and URL-Safe modes.
How do I use Base64 Encoder / Decoder?
Select 'Encode to Base64' or 'Decode from Base64' mode.
Optionally enable 'URL-Safe Base64' for URL string compatibility.
Paste or type your content into the input box.
Copy the output or download it as a text file.
What features does Base64 Encoder / Decoder offer?
Full Unicode / UTF-8 text support without mangling non-ASCII characters
URL-Safe Base64 encoding option (- and _ replacements for + and /)
100% Client-Side execution — zero data sent to external servers
Instant live conversion with real-time character count
Frequently Asked Questions about Base64 Encoder / Decoder
Is my data private when using Base64 Encoder?
Yes. Base64 encoding and decoding runs 100% locally in your browser. No text or data is uploaded to remote servers.
What is URL-Safe Base64?
Standard Base64 uses + and / characters which break Web URLs. URL-Safe Base64 replaces + with - and / with _ to make the encoded string safe for use in query parameters and API tokens.
Can I use this to Base64 encode images or binary files?
This tool encodes text strings. For encoding images (PNG, JPEG, SVG) to Base64 Data URIs for use in HTML or CSS, use the Base64 Image Converter tool instead.
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