CodeSwissKnife 2.0 - Private developer tools for Mac, built for AI workflows

Stop pasting tokens and payloads into random websites. 48 offline developer tools fStop pasting tokens, payloads, certificates and internal data into random websites. CodeSwissKnife 2.0 brings 40+ developer tools to your Mac, with local-first processing, an MCP Inspector, and an AI Developer Library for organizing skills, agents, prompts and rules across Claude, Codex, Cursor and your projects. One-time purchase, no subscriptionor macOS, plus the AI Developer Library.

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Hi Product Hunt! I’m Otto, the developer behind CodeSwissKnife. I first built CodeSwissKnife because I was tired of searching for small developer utilities every time I needed to format JSON, decode a JWT, inspect a certificate, compare data, or convert something quickly. The bigger issue was privacy. These tools are often used with API payloads, tokens, logs, certificates, and internal project data, and I didn’t want to keep pasting that into random websites. I’d really appreciate your feedback, especially on this question: What developer task do you still solve with a random website because you haven’t found a good local tool for it yet?