JSONC can stand in for TOML config files

2026-10-04·#cloudflare·#wrangler·

JSONC is JSON that allows comments (and usually trailing commas). That covers the main reason people reach for TOML in config files: notes next to the settings.

Wrangler reads wrangler.jsonc in place of wrangler.toml:

{
  // the Worker's name
  "name": "my-worker",
  "compatibility_date": "2026-10-01"
}

And you keep the same JSON tooling and editor support.