Base64 Encoder
Encode UTF-8 text as Base64 locally for API tests and development workflows.
Free browser tool
No Matrix computer needed
✓ No account or card
✓ Use the result right away
✓ Task-specific limits below
Workspace
Use base64 encoder
Runs in this browser tab
Result
How to use it
Paste text and encode its UTF-8 bytes to a Base64 string ready to copy.
Try this example
Hello, Matrix OS!
What to check
Base64 is an encoding, not encryption; it does not protect secrets.
Review the result before using it in a published page, application, or agent configuration.
Quick answers
Frequently asked questions
Does Base64 encoding make text confidential?
No. Base64 is a reversible representation of bytes, not encryption. Do not use it to protect passwords, tokens, or private documents.
Which text encoding is used before Base64?
Matrix encodes the input as UTF-8 bytes, then converts those bytes to Base64. That preserves ordinary multilingual text for compatible decoders.
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