Encode text or decode Base64 strings — all processed in your browser.
base64
encode
decode
binary
text
image
Private by Design
All encoding/decoding is performed locally via your browser's memory. Even large image-to-base64 conversions never touch our servers.
Frequently Asked Questions
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is commonly used in web APIs, email attachments, and data storage.
Base64 ensures that binary data (like images, files, or encrypted bytes) can be safely transmitted through systems that only support text (e.g., HTTP headers, JSON, XML). However, it increases data size by ~33%, so it’s not ideal for large files.
No! Base64 is not encryption — it’s just encoding. Anyone can decode a Base64 string back to its original form. It provides no security or privacy. Never use Base64 to “hide” sensitive data.
Yes. Our encoder is optimized for UTF-8, ensuring that Chinese characters, Arabic, and emojis (😊) are handled correctly without corruption.
Absolutely. Following our 'Private by Design' philosophy, your strings and images stay in your browser. It's the safest way to handle encoded credentials.