Free Online Base64 Encoder & Decoder Tool | Encode & Decode Text/File

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This free online tool allows you to quickly encode and decode Base64 data directly in your browser. Base64 encoding is commonly used to transmit binary data over text-based protocols such as HTTP, embed images in HTML/CSS as data URIs, or store complex data in JSON. Simply type or paste your text, upload a file, and click Encode or Decode. The result appears instantly and can be copied with one click. Since all processing happens locally in your browser, your data never leaves your device — making it ideal for handling sensitive information. Whether you are a developer working with APIs, a security researcher analyzing encoded payloads, or simply need to convert data between formats, this tool is fast, reliable, and completely free.