Doppler

Doppler is a secrets management platform that centralizes environment variables and API keys/credentials across every environment (dev, staging, production) and every service, replacing scattered .env files. It syncs secrets to CI/CD pipelines, cloud providers, and local development automatically, provides audit logs and access controls, and integrates with most major clouds and deployment platforms. Aimed at teams who've outgrown checking .env files into git (or copy-pasting secrets over Slack) but don't want the operational overhead of running their own Vault cluster.