Convert text to Base64 encoding or decode Base64 back to original text. Supports UTF-8 and binary data.
Result will appear here...Type or paste text to encode, or Base64 to decode.
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Use Base64 Encode/Decode when embedding images directly in CSS or HTML data URIs, transmitting binary data through text-only protocols, or debugging encoded strings in API payloads. It is essential when working with JWT tokens, email MIME encoding, or passing binary data in JSON. Web developers frequently use it to inline small images and fonts to reduce HTTP requests.
Base64 is a binary-to-text encoding scheme that converts binary data into a set of 64 ASCII characters (A-Z, a-z, 0-9, +, /). It is commonly used to embed binary data like images in HTML/CSS, transmit data in JSON or XML, and encode email attachments. The encoding increases data size by approximately 33%.
No, Base64 is purely an encoding method, not encryption. It provides no security whatsoever as anyone can decode it instantly without a key. Never use Base64 to protect sensitive data — use proper encryption algorithms like AES instead. Base64 is designed for data transport, not confidentiality.
URL-safe Base64 replaces the standard + and / characters with - and _ respectively, making the encoded string safe to use in URLs and filenames without additional percent-encoding. It also optionally omits the padding = characters. This variant is commonly used in JWT tokens and URL query parameters.
Read our complete guide on how to use Base64 Encode/Decode effectively.