Base64 Encode / Decode
Base64 encode and decode online free. Convert text to Base64 and back instantly. URL-safe encoding, no upload, secure browser-based tool.
Drop a file or browse
How to Use Base64 Encode Decode
- Select the mode tab: Encode or Decode.
- For encoding, enter text or upload a file, then click "Encode to Base64". For decoding, paste a Base64 string and click "Decode".
- Copy the result or download the decoded file using the provided buttons.
Features
- Encode & Decode convert text or files to Base64 and back.
- File Support encode any file type (images, documents, binaries) to Base64.
- URL-Safe Option encode data for safe transmission in URLs.
- Copy & Download easily copy results to clipboard or download decoded files.
Why Use Our Base64 Tool
Base64 encoding is essential for embedding binary data in JSON, XML, HTML data URIs, and email attachments. Our browser-based tool handles both encoding and decoding without any server interaction, making it ideal for developers who need quick, secure conversions. With support for both text and file inputs, plus a "Decode as File" option, you have full flexibility for any use case.
FAQs
What is Base64 used for?
Base64 is used to encode binary data into ASCII text for safe transmission over media designed for text. Common uses include data URIs in HTML/CSS, email attachments (MIME), storing binary data in JSON, and embedding images in web pages.
Is Base64 encryption?
No, Base64 is an encoding scheme, not encryption. It converts binary data to text format for safe transport but provides no security. Do not use Base64 to protect sensitive data use proper encryption algorithms instead.
Can I encode large files?
Yes, the tool handles files in your browser. Performance depends on your device's memory. For very large files (100MB+), the encoding may take a few seconds as everything processes locally.