Free Base64 Encoder and Decoder
Encode or decode Base64 — plain text or files. UTF-8 safe. Everything runs locally in your browser.
Click to choose a file or drag one here to encode it to Base64
Frequently Asked Questions
What is Base64 encoding used for?
Base64 converts binary data into plain ASCII text so it can travel through systems that only handle text — embedding images in CSS or HTML, sending attachments in email, storing binary blobs in JSON, or passing data in URLs.
Is Base64 encryption?
No. Base64 is an encoding, not encryption — anyone can decode it instantly. Never use Base64 to protect passwords or sensitive data.
Does this tool handle emoji and non-English characters?
Yes. Text is encoded as UTF-8 before Base64 conversion, so emoji, accented characters, and non-Latin scripts round-trip correctly.
Are my files uploaded anywhere?
No. Files are read and encoded entirely inside your browser using the FileReader API. Nothing is sent to a server.