CRT File — Open & Convert .crt Online
What Is a .crt File?
CRT (.crt) is a security file format. CRT is a security certificate file. Created by Various, this format is essential for security analysts.
How to Open .crt Files
Upload your .crt file to OpenAnyFile and instantly inspect and validate it in your browser. No software installation required. Works on Windows, macOS, Linux, iPhone, and Android.
Everything About CRT Files
Popular CRT Conversions
Frequently Asked Questions
What is a .crt file?
A .crt file is a security format called CRT. CRT is a security certificate file.
How do I open a .crt file without installing software?
Upload your .crt file to OpenAnyFile. Our browser-based tool instantly detects and displays it — no downloads needed.
What program creates .crt files?
.crt files are typically created by Various.
Can I convert .crt to another format?
Yes. OpenAnyFile converts .crt to PEM, DER, CER.
Is it safe to open .crt files online?
Yes. OpenAnyFile processes files in a secure, isolated environment. Files are automatically deleted and all transfers use HTTPS.
Can I open .crt on my phone?
Yes. OpenAnyFile works on all mobile browsers including iPhone and Android.