SSL Certificate Converter
Convert SSL certificates to various formats
Features
Supports four certificate formats
Convert between PEM, DER, P7B, and PFX
Bundle intermediate certificates too
Add up to two intermediate certificates to build a certificate chain
Generate a PFX with a private key
Create a PFX file that bundles the private key and certificate
Conversion completes in the browser
Process entirely on your device without uploading files
How to use
Choose input and output formats
Specify the source and target from the input format and output format dropdowns
Select the certificate file
Select the certificate file, and add the private key or intermediate certificates as needed
Enter the PFX password
When PFX is involved, enter the encryption password in the password field
Press the convert button to run
Press the convert button to convert in the browser and generate the result
Download the converted result
Save the converted certificate file from the download button
Use cases
Install a certificate on a server
Convert to the PEM format required by Apache or Nginx and install it
Use in a Windows environment
Convert the certificate and private key into a bundled PFX format and install it on IIS
Apply to a Java environment
Convert the certificate to the DER format handled by the Java platform
Migrate to another server
Convert a certificate exported from the current server to the destination's format
Basic Knowledge
Difference Between PEM and DER
PEM is a text format certificate format that begins with "-----BEGIN CERTIFICATE-----" and is the most widely used. DER stores the same content in binary format and is mainly used in Java-based and Windows-based systems.
What is PFX (PKCS#12)?
PFX is a format that combines a certificate, private key, and intermediate certificate into a single file and protects it with a password. It is used for installation on IIS and for certificate portability and backup.
Safety and privacy
Runs entirely in your browser
Your input data is processed only within your browser and is never sent externally.
Processing only in your browser
certificate format conversion is processed entirely within your browser, and input data is not sent to any server.
Communications encrypted with HTTPS
Page loading is also encrypted by TLS, and content cannot be read by third parties.
No transmission to third parties
Input content is not sent to external services such as ad networks or trackers.
No automatic saving of results
the certificate and private key and input suggestions are not stored on the server.
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RAKKOTOOLS is free to use!
Available free of charge for individuals and corporations, commercial and non-commercial use alike.No prior permission or usage application is required. Feel free to use it in various situations.
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Can be used for commercial purposes such as research, calculation, processing, and conversion in business and production.
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If using in streaming and videos
Link to RAKKOTOOLS in the description, or Mention or display that you are using RAKKOTOOLS in the stream or video.
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Usage guidelinesYou are free to use it for normal purposes. However, use for purposes that violate laws, infringe on third-party rights, impose significant load on the service, or otherwise interfere with service operation is prohibited.
We do not guarantee the accuracy or completeness of information and calculation results obtained from each tool.
This notice is a translation of the original Japanese text. If there is any discrepancy between the translation and the original, the Japanese original takes precedence.