Hi HN,
I’ve always been frustrated by "utility" websites that force you to upload sensitive JSON, JWTs, or proprietary code to mystery servers just to format or decode them. Most of the top-ranked tools on Google are essentially data-collection honeypots for ads.
I built DevUtility Hub to be a professional-grade, browser-native workbench that operates on a Zero-Knowledge principle.
The Architecture:
150+ Professional Tools: From standard JSON/Base64 to 2026-frontier tools like the MCP Protocol Inspector, ZKP Privacy Playground, and Agentic Workflow Visualizers.
100% Client-Side: Everything runs in your browser via Wasm and local JS. If you disconnect your internet after the page loads, the tools still work.
The "Tool Pipeline" (Killer Feature): Copy-pasting between tabs is a productivity killer. We built a chaining system where you can pipe output from one tool (e.g., Base64 Decode) directly into another (e.g., JSON Formatter) without your data ever hitting the clipboard or a server.
Privacy Hardened: We use 15+ modern security headers and zero-tracking analytics. No signup, no accounts, just code.
Frontier Tools include:
MCP Inspector: Audit and debug Model Context Protocol servers.
ZKP Playground: Sandbox for ZK-SNARKs and privacy engineering.
AI Context Compressor: Reduce token costs for GPT-5/Claude 4 by stripping boilerplate programmatically.
Next.js 15 & React 19 Audit: Automated fixes for common hydration and async request errors.
I'd love to hear your thoughts on the "Pipeline" workflow and what other frontier tools you'd like to see added to the suite.
Cheers!
