Mozilla Observatory

Tools and services for implementing end-to-end encryption, database protection, IoT security, and more in your digital solution. Free for applications with up to 250 users. ⬆️ Back to Top

Secure Enterprise-grade platform for managing environment variables and secrets. Free tier includes up to 3 applications and 150 secrets per project.

Daily SSL/TLS certificate monitoring: expiry alerts (30/7/1 day), chain and OCSP revocation checks, and certificate transparency issuance history. Free forever for 5 domains, no credit card.

Public record of automated open-source repository audits: security posture, maintainability, dependency health, and malicious-package checks, with a versioned methodology and grade badges. Free tier: full access to all published reports, automatic coverage of repositories above the public-interest t

Open source platform that lets you manage developer secrets across your team and infrastructure: everywhere from local development to staging/production 3rd-party services. Free for up to 5 developers.

REST API for fetching the information on the breaches.

Scan your Django site for security flaws with this free, automated checkup tool. Forked from the Pony Checkup site.

A simple, intuitive web app for analyzing and decoding/encoding data without dealing with complex tools or programming languages. Like a Swiss army knife of cryptography & encryption. All features are free to use, with no limit. Open source if you wish to self-host.