I built Devly because I got tired of opening browser tabs every time I needed to format JSON, decode a JWT, or test a regex. The problem wasn't that tools didn't exist it was that they all required leaving what I was doing.
Devly lives in your menu bar. One click, pick your tool, get your result, done. No network requests ever — everything runs locally using Apple's native frameworks like CryptoKit and Foundation. Zero third-party dependencies.
What's included: - Encoding: Base64, URL, HTML, JWT, Unicode, Morse, ROT13 - Hashing: MD5, SHA family, HMAC, bcrypt, UUID generator - Formats: JSON (+ JSONPath), YAML, XML, CSV, SQL, TOML - Web: Color converter, CSS/JS minifier, Markdown preview - Text: Regex tester, diff tool, timestamp converter
The hardest technical challenge was getting all 50+ tools to work within Apple's App Sandbox without sacrificing functionality. I ended up building a ToolProtocol pattern that each tool conforms to which kept things clean and extensible.
Built in pure SwiftUI, macOS 13+, $4.99 one-time.
Would love feedback from this community.