When to use this tool
Inspect binary payloads carried in Base64 without interpreting the bytes as a number. Decode the alphabet first, then display the resulting bytes as hexadecimal.
Example
Use “Try example” to load this public sample and its settings, then run it.
Input
SGVsbG8sIHdvcmxkIQ==
Result
48 65 6c 6c 6f 2c 20 77 6f 72 6c 64 21
How the result is produced
Conventions and limitations
Hex preserves bytes, not character meaning. Check the Base64 alphabet and padding if a payload does not decode as expected.
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.