Base64 Encoder / Decoder
Convert text to Base64 or decode Base64 back to text. Supports standard and URL-safe alphabets.
Base64 Encoder / Decoder
Both actions use the same boxes: Input → Output. Encode writes Base64 to Output. Decode writes plain text to Output.
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How it works
Encoding uses UTF-8 bytes. Decoding rejects invalid Base64. Processing stays on your device.
How to use
Paste text and click Encode, or paste Base64 and click Decode. Use URL-safe when working with tokens in URLs.
Frequently Asked Questions
Is my text uploaded?+
No. Encoding and decoding run entirely in your browser.
What is URL-safe Base64?+
URL-safe Base64 replaces + with - and / with _, and often omits = padding, so values are safer inside URLs and query strings.
Related searches
Common searches related to Base64 Encoder / Decoder.
- Base64 encode
- Base64 decode
- Base64 encoder decoder
- URL safe Base64
- Encode text to Base64
- Decode Base64 to text