Best smallstep alternatives in 2026
8 direct alternatives to smallstep, compared on pricing, features, and best-for use cases. Pick the right replacement without the marketing fluff.
LCCurated by Louis Corneloup · UpdatedWhy people consider alternatives to smallstep
Smallstep provides automated certificate management. Zero-trust security infrastructure-certificates and identity for modern security. The automation handles certificates. The zero-trust enables security. Teams most often switch away when one of these starts to bite:
- •Pricing at scale as usage or premium tiers add up.
- •Missing integrations with the rest of your stack.
- •Performance or scale limits as your needs grow.
- •A specific feature gap you have hit in security.
The 8 alternatives below cover the same core job (security) with different trade-offs. Ranked by real-signal score: G2 and Capterra ratings, media mentions, and editor review. No paid placement.
8 alternatives to smallstep
Ranked by real-signal composite (rankingScore + community + reviews) and direct relevance to smallstep.
- 1
Firebase Authentication
FreemiumHigher rated by usersBackend authentication by Google
Direct alternative4.7(771)Compare smallstep vs Firebase Authentication → - 2
Auth0
FreemiumHigher rated by usersIdentity platform for developers
Direct alternative4.4(388)Compare smallstep vs Auth0 → - 3
Ory
FreemiumHigher rated by usersOpen-source identity infrastructure
Direct alternative4.5(33)Compare smallstep vs Ory → - 4
Zitadel
FreemiumOpen-source identity management
Direct alternativeCompare smallstep vs Zitadel → - 5
Hanko
FreemiumOpen-source authentication with passkeys
Direct alternativeCompare smallstep vs Hanko → - 6
Azure
PaidHigher rated by usersMicrosoft's cloud, essential for enterprises running Windows
Direct alternative4.4(97,447)Compare smallstep vs Azure → - 7
Proton
FreemiumHigher rated by usersTake control of your digital life with end-to-end encrypted communication, storage, and browsing.
Direct alternative4.7(32,118)Compare smallstep vs Proton → - 8
TeamViewer
FreemiumHigher rated by usersThe platform for the digital workplace, enabling seamless remote access, support, and IT management.
Direct alternative4.6(15,579)Compare smallstep vs TeamViewer →
Frequently asked questions
What is the best alternative to smallstep?
Based on real-signal scoring (G2 and Capterra ratings, media mentions, and editorial review), the top alternatives to smallstep are Firebase Authentication, Auth0, Ory. Each solves the same core job with different trade-offs on pricing, features, and integrations.
Is there a free alternative to smallstep?
Yes. Firebase Authentication is one of the freemium alternatives to smallstep listed here (Backend authentication by Google). Other freemium options are flagged in the list below.
Why do people look for smallstep alternatives?
Common reasons teams switch away from smallstep: pricing that scales aggressively, missing integrations with the rest of their stack, performance or scale limits, or a specific feature gap in security. The alternatives on this page solve the same core problem with different trade-offs.
Side-by-side comparisons
In-depth comparison pages for smallstep versus each alternative.
Still considering smallstep?
See the full review, pricing breakdown, and community feedback before you decide.