Base64 Converter
Encode text to Base64 or decode Base64 back to UTF-8 text in your browser. Standard and URL-safe variants — nothing is uploaded.
FAQ
Base64 converter questions
Is Base64 encryption?
No. Base64 only represents binary data as text. It is reversible without a key. Use real encryption when you need confidentiality.
Does this use OpenAI?
No. Encoding and decoding are fixed algorithms that run in your browser. There is no AI step and nothing is sent to OpenAI for this tool.
What is URL-safe Base64?
URL-safe Base64 replaces + and / with - and _ and often omits padding. Use it when the string will appear in URLs or filenames.
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