UtilFoundryDEV TOOLS

Certificate Decoder

Read the block type, byte length and structure of a PEM certificate without uploading it.

  • 100% Free
  • No account required
  • Runs in your browser
  • No data is uploaded
Local saving paused

Private to this browser, not a cloud backup. Saves expire 7 days after the last save. Avoid saving sensitive data on shared devices.

Local saving is disabled for this sensitive tool. Use sanitized test data and clear the editor when finished.

Saved Certificate Decoder workspaces

Saved only on this device. Clearing browser data removes your workspaces. Expired saves are removed when this app next checks storage.

No saved workspaces for this tool yet.

No settings needed
PEM to Certificate details

Input

Paste or edit your PEM, then click “Run tool”.

Type, paste or drop a file
PEM
Ln 1, Col 1Spaces: 2UTF-81.2 KB

Output

Certificate details (read-only).

Read-only
Text
Ln 1, Col 1Spaces: 2UTF-80 bytes
Ready when you arePaste your input, then press Run tool or ⌘ ↵