PPK to PEM Converter — Use PuTTY Keys on Mac, Linux & OpenSSH (Online) | ArrayKit
Got a PuTTY .ppk private key that won't work on Mac, Linux, or with OpenSSH? This
quick guide shows how to convert a .ppk key to an OpenSSH / PEM key (and back) in
seconds with the ArrayKit PPK ↔ PEM Converter — right in your browser, no PuTTYgen
required.
🔗 Try it now: https://arraykit.com/ppk-to-pem-conve...
Why you need it:
PuTTY uses its own .ppk format, but OpenSSH, cloud servers, scp, Git and Ansible
expect an OpenSSH or PEM key. This tool converts between them instantly — RSA and
Ed25519, both directions.
In this video:
✔ Why .ppk keys don't work outside PuTTY
✔ Paste a .ppk key — the format is auto-detected
✔ Convert to OpenSSH or PKCS#8 PEM
✔ Copy or download your key
✔ Convert PEM / OpenSSH back to .ppk for PuTTY, WinSCP & FileZilla
⏱ Chapters:
0:00 The problem: .ppk doesn't work everywhere
0:38 Paste your .ppk key (auto-detected)
0:55 Choose OpenSSH or PKCS#8
1:06 Your converted key — copy or download
1:24 Bonus: convert PEM back to .ppk
1:37 Privacy-first, in your browser
1:48 Explore ArrayKit's 80+ tools
🔒 Privacy-first: your private key is never uploaded — conversion runs entirely in
your browser with the Web Crypto API.
🧰 About ArrayKit:
ArrayKit is a collection of 80+ developer tools — JSON, PDF, encoding, security,
formatters, text, date/time and more. Explore them all at https://arraykit.com
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