Doppler

Judgement

What it is

Developer tool

What it does

Central store for app secrets and environment variables that syncs them into local dev, CI and cloud platforms.

Adopt it when

A development team wants to stop passing .env files around and sync secrets to many platforms easily.

Watch out

Secrets live with a third-party SaaS vendor, and per-user pricing applies on team plans.

Ready for

Production-ready

Runs as

Cloud service and command line

What the license allows

Closed source: you use it under the maker's terms and cannot change or resell the code.

Judged on 2026-11-03 from the maker's description and Wikipedia. The license and age lines are worked out directly.

Open-source alternatives to Doppler

1. 1
   SOPS getsops

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2. 2
   OpenBao openbao

   OpenBao is a software solution to manage, store, and distribute sensitive data including secrets, certificates, and keys.

   Complete system Production-ready You need Vault-style secrets management but want to avoid HashiCorp's BSL license.

   ★ 8.8k MPL-2.0 Go Active, pushed today
3. 3
   Dotenvx dotenvx

   a secure dotenv—from the creator of `dotenv`

   Developer tool Production-ready Your team shares .env files and wants them encrypted in the repo without adopting a secrets server.

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4. 4
   Git-secret sobolevn

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   Developer tool Usable A small team wants a few secret files in Git and already uses GPG.

   ★ 4.1k MIT Shell Active, pushed 35 days ago
5. 5
   Secretspec cachix

   A declarative interface for every secret provider.

   Developer tool Experimental You want one declaration of required secrets that works across developer machines and CI with different backends.

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6. 6
   Pwd.sh drduh

   Manage secrets with Bash and GnuPG symmetric encryption

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   ★ 1.6k MIT Shell Active, pushed 15 days ago
7. 7
   WrongSecrets OWASP

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8. 8
   Berglas GoogleCloudPlatform

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   Developer tool Production-ready You run workloads on Google Cloud and want a simple way to load secrets into Cloud Run or GKE apps.

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9. 9
   FreeIPA freeipa

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10. 10
    Kingfisher mongodb

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Every alternative to Doppler

Other commercial secrets managers

1. 1
   HashiCorp Vault Enterprise HashiCorp

   Building block Production-ready A large organisation needs central secrets management across many teams and clouds, with compliance features.

   Commercial
2. 2
   AWS Secrets Manager Amazon Web Services

   AWS Secrets Manager allows you to rotate, manage, and retrieve database credentials, API keys, and other secrets through their lifecycle.

   Building block Production-ready Your workloads run on AWS and you want secrets managed with IAM rather than another vendor.

   Commercial
3. 3
   1Password Secrets Automation AgileBits

   Securely store, manage, automate, and share secrets for your applications and infrastructure where and when you need them. 1Password secrets management has you covered.

   Developer tool Production-ready Your company already uses 1Password and wants infrastructure secrets in the same place as staff passwords.

   Commercial

Under it

Every program, Doppler included, runs on a microchip.

How compilers were built, back to punched paper tape