Free Online Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 back to text directly in your browser. DevSuite supports UTF-8 text and is useful when working with API values, data representations, authorization-related development tasks, and data URIs.
What is Base64?
Base64 is an encoding scheme that represents binary data as a sequence of ASCII characters. It is commonly used when binary or arbitrary bytes need to be represented safely in text-based formats. Base64 is encoding, not encryption, so encoded data should not be treated as secret.
How to encode Base64
Enter text in the editor and choose Encode. DevSuite converts the text to its UTF-8 byte representation and produces the corresponding Base64 string. This is useful when testing API payloads, headers, or other text representations.
How to decode Base64
Paste a Base64 string into the editor and choose Decode. The tool converts the encoded bytes back to UTF-8 text when the input represents valid UTF-8 data.
Base64 is not encryption
Anyone who has a Base64-encoded value can decode it. Do not use Base64 as a substitute for encryption, password hashing, or access control. Treat credentials, tokens, and other sensitive values according to the security requirements of the system that uses them.
Common Base64 use cases
- Testing text values used in APIs and development environments.
- Working with Base64-encoded JSON, configuration values, or data representations.
- Inspecting encoded values during debugging.
- Creating or inspecting Base64 data used in data URIs.
Does DevSuite upload my input?
The Base64 encoding and decoding operations run in your browser and the tool input is not uploaded to DevSuite servers. The website can still make separate requests for services such as analytics or advertising.