CRT to PEM converter
To convert CRT to PEM, drop your CRT file in the box below. It converts straight away; press Download to save the PEM. It all happens in your browser, so your file stays on your device.
Convert to
Converted on this device, never uploaded
What changes
| CRT to PEM | What happens |
|---|---|
| Binary .crt | Written as PEM |
| PEM .crt | The certificates again, leaf first, without the text OpenSSL adds around them |
| Chain | Ordered by who signed whom |
| Facts | Open the file in the viewer to see names, dates and fingerprints before you convert |
How to convert CRT to PEM
- Add your CRT. Drop the file in the box, or click to choose it. It becomes PEM straight away.
- Check the result. Look at the preview and the size. The defaults are right for most files.
- Download. Press Download to save the PEM.
Why PEM
Get a clean PEM file from a .crt: binary certificates become PEM text, and PEM bundles come back leaf first with any text around them removed.
Questions
Often, but not always: the extension says nothing about the inside. Either kind converts here.
No. PEM and DER are two wrappings of the same bytes: the fingerprints, signature and dates stay exactly the same.
No. The file is read and converted in your browser, so it stays on your device.
No. The conversion happens right in your browser, so your file stays on your device. There is no account to make, either.