Base64 Encoder & Decoder for UTF-8 Text
Convert text to Base64 or decode Base64 back to readable UTF-8 text for API examples, config snippets, and data cleanup.
Try a common Base64 task
A Base64 encoder turns text into a transport-safe character string.
A Base64 decoder reverses that encoding when the original content is UTF-8 text.
Use text values
This page is designed for UTF-8 text snippets, not large binary files.
Do not treat it as security
Base64 is reversible encoding, so decoded content is not protected.
The encoder converts UTF-8 text into bytes, then represents those bytes as Base64 characters.
The decoder reverses the process and reports invalid Base64 input when the browser cannot decode it.
Base64 is useful for transport and embedding, but it does not hide or protect the original content.
Do not treat Base64 output as a password, secret token, or secure storage format.
Example
Encode a short JSON snippet before pasting it into an API example or test fixture field.
Assumption
Decoded output is interpreted as UTF-8 text, which matches most modern web and API workflows.
Limitation
This text tool is not designed for large binary files or sensitive secrets.
API examples
Encode short payloads or decode example values while reading API docs.
Config fields
Check text values that a system expects in Base64 form.
Debugging
Decode pasted values from logs, headers, or local test output.
Documentation
Create safe example strings for tutorials, tickets, and README snippets.
Base64 encode text
Convert a UTF-8 string into Base64 for examples, payload fields, and local fixtures.
Base64 decode text
Turn a pasted Base64 value back into readable UTF-8 when it represents text data.
UTF-8 Base64 decoder
Check whether decoded output is valid text before pasting it into docs or issue notes.
Base64 is not encryption
Confirm whether an encoded value is just transport-safe text rather than protected data.
Is Base64 secure?
No. Base64 is reversible encoding. Use encryption when you need confidentiality.
Can I decode Base64 from an API response?
Yes, if the value represents UTF-8 text. Binary file data may not display usefully in this text-focused tool.
Why does decoded text sometimes look broken?
The original bytes may not be UTF-8 text, or the Base64 input may be incomplete.
Does this tool need a backend?
No. It uses browser encoding and decoding APIs.
Suggested workflow
Encoded data inspection path
Decode text-safe data, format structured output, and fingerprint exact strings when debugging.