wrangler preview base-config secret commands manage shared Preview secrets

Introduced 2026-08-11 · score 0.97

HOW TO USE IT

When setting shared defaults for all of a Worker’s Previews, use `wrangler preview base-config secret` to put, delete, list, or bulk-manage secrets in the Preview base config. Use `list` to inspect configured secrets; the release note says values are masked.

WHY THIS HELPS

Set or inspect shared secret defaults for all Previews of a Worker.

REQUIREMENTS AND LIMITATIONS

• Version: 4.121.0
• <KEY> (required): Secret name accessible in the Worker; required by put and delete.
• [FILE]: File of key-value pairs to upload, in JSON or .env format; bulk can omit it and read from stdin only where the command docs say so. JSON null deletion is stated in the release note.
• --worker-name <WORKER>: Worker to target; defaults to the name in the local Wrangler config.
• --skip-confirmation: Skip the confirmation prompt for delete.
• --json: Return list output as JSON; default is false.

FIRST-PARTY EVIDENCE

• https://github.com/cloudflare/workers-sdk/releases/tag/wrangler%404.121.0
• https://developers.cloudflare.com/workers/wrangler/commands/workers/

Check the installed version and the source before using it. Entry JSON

Report a problem with this card