Convert text to Base64 and back, turn any file or image into Base64 or a data URL, or rebuild the original file from a Base64 string.
Your files never leave your device
Base64 makes data about 33% larger and does not protect it: anyone can decode it. Use it to transport data, not to hide it. Spaces and line breaks in pasted Base64 are ignored automatically.
A way of writing binary data with 64 safe text characters, used in emails, JSON, data URLs and APIs. It is an encoding, not encryption.
Yes. Text is encoded as UTF-8, so any language decodes back exactly.
A variant that uses - and _ instead of + and / and drops the = padding, so the result can be used in links and file names.
Base64 with a prefix such as data:image/png;base64, that lets you embed an image or file directly in HTML or CSS.
Open the Base64 → file tab and paste the string. The file type is detected automatically, images are previewed, and you can download the file.
No. Encoding and decoding happen on your device only.