Trust & Safety in the palm of your hand.

• Input & Inspect. It's really that simple.
Input a domain or IP address using the TLS Inspector app, or inspect any website from within your favourite browser using our Inspect Website extension.

• No Nonsense Results. "At a glance" has never been easier.
TLS Inspector will show you the entire issue chain for any website, and whether or not your device trusts that chain.

• Dive Deep. Details for days.
View important properties of any TLS certificate including fingerprints, dates, algorithms, and more.

• Stay Safe Online. No training required.
TLS Inspector makes it easy to detect and avoid man-in-the-middle attacks on unsafe networks by highlighting invalid and untrustworthy certificates.

• Right Place, Right Time. Inspect nearly anything from anywhere.
Easily access TLS Inspector from other apps, such as Safari, with the Show Certificates share sheet action.

TLS Inspector is free & libre open source software (FLOSS) with source code available on GitHub.

What’s New

Version 2.4.4

Thanks for using TLS Inspector!

• Fixed a crash during CRL parsing.
NOTE: this crash only occurred in the Show Certificate extension.
NOTE: this crash only occurred with large CRLs.
NOTE: note

Ratings and Reviews

4.8 out of 5
244 Ratings

244 Ratings

Its That End User Again ,

UPDATED: An invaluable asset for Users.

UPDATE: Still using this, app is continually updated and improved! Out of *all* the TLS related apps available on the App Store, this one blows the others away. The UI and functionality are unmatched. Share sheet integration, as well as stand alone capabilities, and direct ways to further examine the very chain or individual certs are perfect

This app helped me pin down (no pun intended) the shady certs that were behind the adware problem I have. This problem is so complicated that I’m still gathering data as proof to Apple because I guess they don’t get the whole certificate chain thing... or anything related to http.. or TLS (SSL). 😐 So thank you 🙏🏻 to the developers, you guys are doing important work of high quality. My only suggestion is maybe a beginners FAQ or general info page about SSL, Header definitions, etc.

Developer Response ,

Thank you for the kind words! I'm happy to hear you like the app. I've noted down your feedback on our Github page for tracking.

Mandhok ,

Should come with iOS

Great tool that everyone should have installed. Seriously, I don’t know why this isn’t baked into iOS. Everyone should be able to inspect certificates of the sites they visit, and this app adds the feature nicely. You don’t need to switch to the app, either. You can inspect certs of the sites you’re visiting from safari.

PnUy8vtn6wh3 ,

Awesome to begin with and awesome in continuing development

A very useful tool. Developer could have stopped working on it long ago but not only corrected and added things, but also applies updates when technology, methods, and practices change over time. Keep up the good work!

App Privacy

The developer, Ian Spence, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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