When to use this tool
Verify that a Base64 round trip preserves a Unicode text sample. Encode the UTF-8 bytes and immediately decode the same alphabet back into text.
Example
Use “Try example” to load this public sample and its settings, then run it.
Input
Hello 数据
Result
Hello 数据
How the result is produced
Conventions and limitations
Successful round-trip text is not encryption. For arbitrary binary input compare exported bytes, since a text preview can hide non-printable byte differences.
How to use this page
- Paste your input or open a local file.
- Adjust tool options if needed, then choose Run tool.
- Copy the result or download the original output bytes.
Inputs and results are not added to the public catalogue or saved in the URL. Processing happens in your browser; HTTP Request and DNS over HTTPS send the requests you explicitly run. Files up to 128 MiB can be opened; decompression and image tools may have smaller processing limits. Large results have a shortened preview. Text and HTML downloads use UTF-8; binary downloads preserve output bytes. Pasted text follows browser newline handling; open a file when exact input bytes matter.