// the find
DevToys-app/DevToys
A Swiss Army knife for developers.
DevToys is a native desktop app (Windows/Mac/Linux) with 30+ small developer utilities — JWT decoding, JSON formatting, regex testing, hash generation, etc. — all running locally with no network calls. Version 2.0 was a near-complete rewrite that added cross-platform support via a custom Blazor Hybrid UI layer and a proper extension API. It's for developers who are tired of pasting sensitive tokens into random web tools.
The extension API is the real story here — DevToys.Api is a proper MEF-based plugin contract with typed UI components, CLI tool interfaces, and sandbox file abstractions, meaning third-party tools aren't second-class citizens. Smart Detection (auto-selecting the right tool from clipboard content) is a genuinely useful quality-of-life feature that most similar apps skip. Cross-platform in 2.0 is real: separate .sln files per platform suggest they're actually testing each target, not just hoping WinUI abstracts away. Localization coverage is serious — 40+ language files with a Crowdin integration.
The Blazor Hybrid UI layer is a bet that hasn't fully paid off — WinUI 3 on Windows still has rough edges, and running a browser engine to render desktop UI adds overhead and limits native feel on Mac and Linux. The README is nearly empty for a 31k-star project; there's no architecture overview, no 'how to build', and documentation lives on an external site that may or may not stay current. The extension ecosystem is nascent — the API surface is there but the community tooling (discoverability, a registry, versioning) is thin. Last meaningful push was February 2026, which is a long gap for an actively-used tool.