Infisical vs Teller

Infisical is an identity security platform for managing application secrets, certificates, and privileged access across cloud, on-prem, and AI infrastructure. Secrets Management centralizes credentials for syncing, rotation, and auditing across environments and workloads, with role-based access scoped by environment, path, and identity. Secrets can be rotated on a schedule or issued as short-lived credentials. Certificate Management handles private certificate authorities and automates certificate issuance, renewal, and revocation. Privileged Access provides short-lived identity-based sessions with auditing, while Agent Proxy keeps real secrets at the proxy and gives agents placeholders, with requests logged. Infisical lists integrations including AWS, Azure Key Vault, GitHub, GitLab, Datadog, OpenAI, and PostgreSQL. It can be used as Infisical Cloud or self-hosted. A free plan is available; paid plans start at $20 a month billed annually. The free certificate plan is limited to 10 active certificates, up to 5 SANs per certificate, and no wildcard SANs.

Teller is a free, Apache-2.0 open-source secret manager for developers working with secrets during development, testing, and app builds. It connects to vaults, key stores, and cloud services for personal environments or team workflows. Named integrations include HashiCorp Vault, AWS Secrets Manager, Google Secret Manager, HashiCorp Consul, AWS SSM, dotenv, etcd, and an in-memory store. The `teller run` command can start a subprocess with fetched variables, while `teller env` can provide a Docker `--env-file`. Teller can scan code for secrets and return exit code 1 in CI when run with `--error-if-found`. It can also redact secrets from process output, logs, live log tails, and files. Provider mappings can specify a root path, mapping ID, and key renames; configuration templates can use environment variables. The project offers release binaries and source installation with `cargo install --path .`. Write operations are available only through providers that support them.