What is Certificate Decoder?

Certificate Decoder is a free online inspector. Decode and inspect X.509 certificates. People also call it a ssl certificate decoder. It is part of AyeTab.

Is this Certificate Decoder free?

Yes. Certificate Decoder on AyeTab is free to use. There is no signup, no usage cap in the product, and no watermark on the output.

Does my data leave the browser when I use Certificate Decoder?

No. Certificate Decoder runs locally in your browser. Input is not uploaded to AyeTab servers, which is why it also works as a private / offline tool after the page loads.

Do I need to install anything to use Certificate Decoder?

No install is required for the web version. Open this page and use Certificate Decoder in Chrome, Firefox, Edge, or Safari. The AyeTab extension offers the same tools on a new tab if you prefer that.