Encode Unicode text to Base64 or decode it back.
Convert UTF-8 text into a Base64 representation for data transport, or inspect a Base64-encoded text value.
Convert a short Unicode string into Base64 when a development interface explicitly requires that encoding. Confirm whether the destination expects ordinary Base64, a URL-safe variation, or an entirely different format before using the result.
Decode a Base64 string to see its UTF-8 text contents. Only decode content you are authorized to inspect. The tool treats the result as text and does not execute it or interpret it as HTML.
Base64 is an encoding, not encryption. Anyone can decode it. Decoding is intended for valid UTF-8 text, not arbitrary binary files.
Hello
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Encoding turns the UTF-8 bytes into ordinary Base64 characters. Decoding that value returns the original five-character text.
Check that the input is ordinary Base64 and represents valid UTF-8 text. Arbitrary binary data or a URL-safe variant using different characters may not decode with this text-focused tool.
Base64 usually expands data rather than compressing it. Its purpose is representation and transport, not reducing size or concealing information.
A little clarity before you get started.
Yes. The tool encodes and decodes text using UTF-8.
No. Base64 is reversible without a password or secret key. Do not use it to protect private information or assume an encoded value is unreadable to others.
Yes. The tool converts text to UTF-8 bytes before encoding and decodes valid UTF-8 bytes back into text. This supports characters beyond the basic Latin alphabet.
This page is intended for text. Binary files encoded as Base64 are not necessarily valid UTF-8 and may be rejected. It does not create a binary file from arbitrary encoded input.
No. It produces standard Base64, which can contain plus signs, slashes, and padding. Some services require a URL-safe alphabet and different padding rules; check that service's specification.
No. This tool is free to use without signing in. An account lets you keep a list of favorite tools.
Yes, with a current browser. File support, download behavior, and available memory vary by device. For large documents and images, a computer is often more comfortable.