Base64 Encoder
Securely encode text/images to Base64 or decode Base64 to text. Features real-time conversion, file support, and 100% client-side privacy. No server uploads.
Never use Base64 for storing passwords! It provides no security.
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Secure & Private Client-Side
This tool runs entirely in your browser. No data is sent to any server, ensuring your information remains private and secure.
About Base64 Encoder
Securely encode text/images to Base64 or decode Base64 to text. Features real-time conversion, file support, and 100% client-side privacy. No server uploads.
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Frequently Asked Questions
What is Base64? expand_more
Base64 is a way to represent binary data using only safe, printable ASCII characters.
Is Base64 secure? expand_more
No! Base64 is an encoding scheme, not encryption. It can be easily decoded by anyone.
Can I use this for passwords? expand_more
Never use Base64 for passwords. Read our blog post to learn why hashing is the correct approach.
Can I encode images in Base64? expand_more
Yes! While this [Base64 Encoder](/tools/base64-encoder/) focuses on text, images can be encoded to Base64 and embedded in HTML or CSS as data URIs.
What is the difference between Base64 and Base32? expand_more
Base64 uses 64 characters (A-Z, a-z, 0-9, +, /) while Base32 uses only 32 characters (A-Z, 2-7). Base64 is more efficient for binary data transmission.
Why does my encoded Base64 end with =? expand_more
The = character is padding used to make Base64 output a multiple of 4 characters. It ensures correct decoding when the original data length isn't a multiple of 3 bytes.
Can I use Base64 in email? expand_more
Yes! Base64 is commonly used in email for binary attachments like images or documents. The email client decodes it back to binary format automatically.
How do I decode Base64 in JavaScript? expand_more
Use the atob() function: const decoded = atob(base64String);. Our [Base64 Encoder](/tools/base64-encoder/) tool lets you test this quickly without writing code.
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Common Use Cases
- Encoding: Convert binary data or text to ASCII string format.
- Decoding: Restore original data from Base64 strings.
- Privacy: All processing happens 100% locally in your browser.
- Debugging: Quickly decode headers, tokens, or other Base64 snippets.