OpsToolbox is a collection of small, fast, browser-based utilities for the people who keep servers running: system administrators, DevOps and SRE engineers, network admins, and anyone else who lives in a terminal. It exists because the tools we all reach for dozens of times a week (a subnet calculator here, a Base64 decoder there) are scattered across slow, ad-choked sites that process your input on their servers.
Our principles
Everything runs locally. Every tool on this site is client-side JavaScript. The text, tokens and configs you paste are processed in your browser tab and never transmitted anywhere. You can verify this at any time with your browser's developer tools.
No accounts, no paywalls. The site is free and supported by advertising. Ads are clearly separated from tool interfaces and never interfere with functionality.
Practical over exhaustive. Each tool page includes a short write-up focused on the real-world usage and gotchas (the things that actually cause tickets) rather than encyclopedic theory.
Accuracy
The tools are tested against standard vectors (hash test vectors, RFC examples, known subnet math), but they are provided as-is: always sanity-check output before using it in production, and see our terms of use. Spotted a bug or want a tool added? Tell us. Bug reports are genuinely appreciated and usually fixed quickly.