Doppler vs Keywhiz: What are the differences?

What is Doppler? Easily manage your env vars and secrets. Stop struggling with scattered environment variables, hacking together home-brewed tools, and avoiding access controls. Keep your team and servers in sync with Doppler.

What is Keywhiz? A system for distributing and managing secrets. Keywhiz is a secret management and distribution service that is now available for everyone. Keywhiz helps us with infrastructure secrets, including TLS certificates and keys, GPG keyrings, symmetric keys, database credentials, API tokens, and SSH keys for external services — and even some non-secrets like TLS trust stores. Automation with Keywhiz allows us to seamlessly distribute and generate the necessary secrets for our services, which provides a consistent and secure environment, and ultimately helps us ship faster.

Doppler and Keywhiz can be primarily classified as "Secrets Management" tools.

Some of the features offered by Doppler are:

• Quickly fetch your secrets wherever you develop and deploy
• Increase Productivity
• Deploy Everywhere

On the other hand, Keywhiz provides the following key features:

• Keywhiz Server provides JSON APIs for accessing and managing secrets. It is written in Java and based on Dropwizard.
• KeywhizFs is a FUSE-based file system, providing secrets as if they are files in a directory. Transparently, secrets are retrieved from a Keywhiz Server using mTLS with a client certificate.
• Presenting secrets as files makes Keywhiz compatible with nearly all software. Outside of Keywhiz administration, consumers of secrets only have to know how to read a file.

Keywhiz is an open source tool with 2.29K GitHub stars and 189 GitHub forks. Here's a link to Keywhiz's open source repository on GitHub.