◇Free
PEM block inspector
Inspect PEM labels and decoded byte counts without transmitting keys.
Inspect PEM labels and decoded byte counts without transmitting keys. Find matching BEGIN and END blocks and report each label with its decoded Base64 byte count. Multiple recognized PEM blocks can be inspected in one text input.
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: -----BEGIN TEST DATA----- YWJj -----END TEST DATA-----
Example result
[
{
"label": "TEST DATA",
"bytes": 3
}
]Limitations and details
This does not parse ASN.1, validate certificate chains or establish key correctness; unmatched or malformed blocks are not a full file audit.
Inputs and options
- Input
- Text
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.