SSL Converter

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SSL Certificate Converter
Convert SSL/TLS certificates between PEM, DER (binary) and PKCS#7 (P7B), or export a human-readable TEXT dump. Paste or upload — nothing leaves your browser until you click Convert.
Input Certificate
From format
convert to
To format
Click to upload or drag & drop a certificate
.pem .crt .cer .der .p7b .p7c
Or paste certificate
Running OpenSSL conversion…
Supported paths: PEM ↔ DER, PEM → PKCS7, PKCS7 → PEM, PEM → TEXT, DER → TEXT, PKCS7 → TEXT. Paste a public certificate only — private keys are not required and are not accepted.
Converted Output
Pick From and To formats, load a certificate, hit Convert
Output
—
Format
—
Size
—
Common Name
Uses local OpenSSL via api/ssl-convert-api.php. Validate production certs with your CA or openssl x509 -text.

How to use SSL Converter

Free online SSL Converter tool. Convert files and data instantly in your browser — fast, private, no signup required.

What is the SSL Converter?

The SSL Converter is a free online tool designed to help you get things done quickly and efficiently. It runs entirely in your browser — no software to download, no account to create.

How to Use

  1. Enter your input — paste text, upload a file, or fill in the required fields.
  2. Run the tool — click the action button to process your input.
  3. Get results — copy or download the output with one click.

Key Features

  • 100% free — no hidden fees, no watermarks, no usage limits.
  • Private & secure — processing happens locally in your browser when possible.
  • Lightning fast — get results in seconds, not minutes.
  • Works everywhere — compatible with desktop, tablet, and mobile browsers.
  • No signup required — start using the tool immediately, no account needed.

Tips for Best Results

  • Double-check your input for accuracy before running the tool.
  • Bookmark this page for quick access next time.
  • Share this free tool with friends and colleagues who might find it useful.

Frequently Asked Questions

Is this tool really free?

Yes, the SSL Converter is completely free to use with no hidden charges or premium tiers for basic usage.

Do I need to create an account?

No signup required. You can use the tool immediately without creating an account or providing any personal information.

Is my data safe?

Yes. Whenever possible, processing happens entirely in your browser, meaning your files and data never leave your device.

Frequently Asked Questions

What is the SSL Converter?

The SSL Converter is a free online conversion tool that lets you convert files and data between formats without installing any software. Everything runs in your browser for privacy and speed.

Is the SSL Converter free to use?

Yes, the SSL Converter is completely free to use. There are no hidden fees, no premium tiers for basic usage, and no watermarks on your results.

How do I use the SSL Converter?

Upload or paste your input, select options if needed, and click convert. Your result will be ready in seconds.

Are my files safe and private?

Yes. Your files are processed entirely in your browser and never uploaded to a server. Your data stays private and secure at all times.

Does the SSL Converter work on mobile?

Yes, the SSL Converter works on all modern browsers including desktop, tablet, and mobile devices. No app installation is required — just open your browser and start using the tool.