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Base64URL converter
Encode UTF-8 text using URL-safe Base64 or decode it.
Encode UTF-8 text using URL-safe Base64 or decode it. Use URL-safe minus and underscore characters to represent UTF-8 bytes without output padding. Decode mode restores the alphabet and checks that the result is valid UTF-8 text.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Input: hello? Direction: encode
Example result
aGVsbG8_
Limitations and details
Base64URL is reversible encoding, not encryption; this tool handles text rather than downloading arbitrary binary files.
Inputs and options
- Input
- Text
- Direction
- Encode / Decode
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.