Config Converter
Source on GitHub

Convert .env, Azure App Settings & appsettings.json

Paste or upload, pick the output format, copy or download. The tedious : ↔ __ separator dance and nested object flattening — handled.

Your config never leaves this page.

Everything runs in JavaScript in your browser. There is no server, no API, no telemetry, no analytics. After this page loads, zero network requests fire — . Secrets stay where they belong: on your machine.

No uploads No tracking Open source

Input

Format

Output

Format

Verify it yourself

  1. Open your browser's DevTools (F12 or Ctrl+Shift+I / Cmd+Opt+I).
  2. Switch to the Network tab and clear it.
  3. Paste a config above and click Convert.
  4. You'll see zero new network requests fire.

Want extra assurance? Go offline (Network tab → "Offline", or disconnect WiFi) and try again. The page keeps working — that's only possible because nothing is being sent.