Certificate CSR Generator & Format Converter
Generate CSRs, convert between PEM/DER/PFX/P7B formats, and verify certificate chains - 100% client-side
What Certificate CSR Generator & Format Converter does
A concise, technical tool for generating X.509 certificates and CSRs, designed for developers and system administrators who need precise control over certificate parameters without the complexity of full-featured GUI tools or paid commercial suites. The interface prioritizes functional efficiency over aesthetic polish, offering a streamlined workflow for certificate generation and conversion tasks.
How to use the Inventive HQ Certificate CSR Generator & Format Converter
- 1
Select the desired output format (PEM, DER, or PKCS#12) from the dropdown menu
- 2
Configure key size and algorithm preferences (RSA, RSA-PSS, or EC)
- 3
Optionally specify custom key sizes or extensions
- 4
Generate the certificate or CSR with a single click
Best for
Developers, system administrators, and security professionals who need to generate CSRs, test certificates, or manage certificate chains without leaving their browser environment.
Limitations
- No built-in key storage - generated keys are lost if the page is refreshed
- No persistent storage; all data is lost when the browser tab closes
- Limited to standard RSA key sizes and common curve options
Certificate CSR Generator & Format Converter FAQ
- Can I use this tool offline?
- Yes, the tool runs entirely in your browser. No data is sent to external servers.
- Can I generate private keys for code signing or code signing certificates?
- Yes, the generator supports creating certificates for code signing purposes, including code signing certificates for software distribution.
- What key sizes are supported?
- The generator supports standard key sizes including 2048-bit, 2048-bit, and 4096-bit RSA keys, as well as EC keys using P-256, P-256, and other standard curves.