Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used for encoding data that needs to be transmitted over media designed to deal with text.
Base64 encoding converts 3 bytes of binary data into 4 ASCII characters, making it safe for transmission over protocols that might not handle binary data correctly.
Base64 turns binary data into plain ASCII text so it can travel safely through systems built for text, such as embedding images in CSS or HTML, JSON payloads, email attachments, and data URLs.
No. All encoding and decoding happens in your browser. Your text, files, and images never leave your device, so even sensitive content stays private.
Yes. You can encode and decode text as well as files and images (up to a 10MB limit), with image preview support so you can confirm the result visually.
No. Base64 is an encoding, not encryption. Anyone can decode it back to the original, so never treat it as a way to protect secrets; use real encryption for that.
Yes. The tool handles UTF-8, so accented letters, non-Latin scripts, and emoji encode and decode correctly without corruption.