CertTool vs DevGear

If you want to know a little bit about a X.509 certificate CertTool has you covered. Just select a file in PEM or DER format that contains the certificate and it will show you some details. And if you just want to share the certificate to the app, you can do that as well.

DevGear is your all-in-one toolkit for everyday development tasks. Stop switching between browser tabs, bookmarks, and scattered utilities — everything you need is right here, fast and offline. 14 Essential Developer Tools: Base64 — Encode and decode text instantly Base64 Image — Convert images to Base64 strings and back UUID — Generate and validate UUIDs (v1, v4, v5) JSON — Format, validate, and beautify JSON RegExp Tester — Build and test regular expressions with live match highlighting URL Encoder/Decoder — Encode and decode URL-safe strings YAML ↔ JSON — Convert between YAML and JSON formats JWT Debugger — Inspect and decode JSON Web Tokens Unix Time — Convert between Unix timestamps and human-readable dates Hash Generator — Generate MD5, SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512 hashes String Case Converter — Transform text between camelCase, snake_case, PascalCase, kebab-case, and more Cron Parser — Parse and understand cron expressions in plain English Lorem Ipsum — Generate placeholder text for your designs and prototypes Backslash Escape — Escape and unescape special characters in strings Why DevGear? Works entirely offline — no data ever leaves your device Clean, minimal interface built for speed Keyboard-friendly navigation Instant search across all tools