How WeldForge compares.

Honest, vendor-by-vendor break-downs. We credit each platform where it is stronger than WeldForge, show real list prices, and tell you up front when we are not the right answer.

How we keep these honest Competitor pricing is re-checked against each vendor's own pricing page and dated on the comparison itself — last pass 14 September 2026. Where a vendor now beats us, the page says so plainly rather than quietly keeping an old number that flattered us. If you find one that is out of date, tell us: hello@weldforge.org.

Cost-driven comparison

WeldForge vs Auth0

Monthly bills at 1k / 10k / 25k / 50k / 250k MAU, feature matrix, 5-step migration guide. Auth0's free tier now reaches 25 000 MAU, so below that line they are cheaper than our hosted tiers and we say so — the comparison that matters is B2B, and what the free tier leaves out.

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TCO-driven comparison

WeldForge vs Keycloak

Both are free to self-host — so this one is about total cost of ownership, what's included in the box, and whether the managed-cloud option is worth it.

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Price-driven comparison

WeldForge vs FusionAuth

FusionAuth wins on flat-rate pricing at scale — we say so up front. This page is about when the extra built-ins (SAML IdP emphasis, PKI, POPIA residency, scoped API keys, HMAC webhooks) justify paying more.

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Scope-driven comparison

WeldForge vs Clerk

Clerk owns the drop-in React auth space, and with 50 000 retained users included it wins on hosted price until roughly 250 000. WeldForge is for the moment your first enterprise buyer asks for SAML SSO and SCIM provisioning without a per-connection fee — or when self-host becomes a hard requirement.

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Want a quick cost answer without reading? The interactive cost calculator lets you move a slider to your MAU count and see monthly bills on WeldForge, Auth0, Clerk and FusionAuth side by side. URL-shareable.