Hi HN, I’m the developer of Devly. I built this because I was tired of "context-switching" every time I needed to format a JSON file or decode a JWT.

The Problem: Most tools for these tasks are web-based. I didn't like the latency of opening a browser tab, and more importantly, I hated pasting sensitive data (like API keys or internal JWTs) into random "formatter" sites I didn't trust.

The Solution: I built a native macOS app in SwiftUI that runs 100% locally. No data leaves your machine. It’s tiny (14MB), lives in your menu bar, and opens instantly.

Features:

50+ tools: JSON/YAML/CSV formatting, JWT decoding, Hashing, Regex, etc.

Native & Fast: Built in SwiftUI—no Electron, no RAM bloat.

Offline-first: Works anywhere without an internet connection.

One-time purchase: I’m not a fan of subscriptions, so it’s just $4.99.

I just released v1.1.2 which adds standalone windows, and I’m currently working on a Raycast extension. I’d love to hear your feedback or any tool requests!