Base64 Encode
Encode text or strings to Base64 instantly and for free.
This tool runs entirely in your browser. Your files are never uploaded to a server.
Paste any text, JSON, or string and convert it to Base64 in one click. Everything runs locally in your browser — nothing is uploaded to a server, so your data stays private. Useful for encoding data URIs, API payloads, auth headers, and config values.
Frequently Asked Questions
- What does this Base64 encoder do?
- It converts any text or string you enter into its Base64-encoded representation, which is a common format for safely transmitting binary-like data as text.
- How do I use it?
- Type or paste your text into the input box and the Base64 output appears instantly — just copy it and use it wherever you need.
- Is my data safe when I use this tool?
- Yes, the encoding happens entirely in your browser using client-side JavaScript. Nothing you type is ever sent to a server, and the tool is completely free to use.