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Software · head to head

Bun vs Ory

Bun logo

Bun

Software

JavaScript runtime, bundler, test runner and package manager unified in single toolchain

From
Free
Rated
-
Full reviewWebsite
Ory logo

Ory

Software

Open-source identity, authentication, and permissions infrastructure

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Bun linux requires kernel 5.6 or higher (5.1 minimum but with compatibility issues); older systems not supported; Ory production and Growth plans are billed annually ($770/year and $9,350/year), which is a larger upfront commitment than monthly-only competitors.

Where they differ

Only the attributes on which Bun and Ory actually diverge.

Attributes where Bun and Ory differ
AttributeBunOry
Pricing modelopen-sourceusage-based
PlatformsmacOS, Windows, Linux, FreeBSD, Androidweb, api

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Bun

Nothing recorded that Ory does not also cover.

Only in Ory

  • Authentication APIs
  • Permissions engine
  • Machine-to-machine tokens
  • B2B organizations
  • SAML SSO
  • Multi-region deployments

What people use each for

The jobs each tool is most often brought in to do.

Bun

  • High-performance JavaScript services prioritising startup time and memory efficiencynot Ory
  • Single-file executable deployment without Node runtime dependenciesnot Ory
  • Monorepo management with workspace supportnot Ory
  • Full-stack development with unified toolchainnot Ory
  • Systems programming and shell scripting with JavaScriptnot Ory

Ory

  • Adding self-hosted or cloud identity to a new productnot Bun
  • Implementing fine-grained permission checksnot Bun
  • Supporting B2B organizations and multi-tenancynot Bun
  • Building machine-to-machine authentication for microservicesnot Bun

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Bun

  • Linux requires kernel 5.6 or higher (5.1 minimum but with compatibility issues); older systems not supported
  • Native Node.js addons not supported directly; requires FFI workarounds for C libraries
  • Ecosystem less mature than Node.js; fewer third-party packages optimised for Bun
  • Windows support newer and less mature than Linux/macOS; occasional edge cases

Ory

  • Production and Growth plans are billed annually ($770/year and $9,350/year), which is a larger upfront commitment than monthly-only competitors.
  • SAML SSO and multi-region deployments are reserved for the custom-priced Enterprise tier.
  • Usage-based pricing across aDAU, M2M tokens, and permission checks makes cost estimation more complex than flat per-MAU billing.

Pricing, plan by plan

Bun

Free

No published plan breakdown. See the Bun review.

Ory

Free
  • DeveloperFree
    • Community support
    • No production environments
  • Production$64/month
    • $21 monthly credit included
    • 1 production environment
    • 3 staging environments
  • Growth$779/month
    • $255 monthly credit included
    • 2 production environments
    • B2B organizations (max 3)

Which should you pick?

Choose Bun if

  • You want to start without paying.
  • You work on macOS, Windows, Linux, FreeBSD, Android.
Bun review

Choose Ory if

  • You need authentication apis.
  • You want to start without paying.
  • You work on web, api.
  • You also want permissions engine.
Ory review

Questions people ask

Is Bun or Ory better?
Neither clearly leads. Bun starts at Free and Ory at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bun or Ory?
Bun starts at Free and Ory at Free.
Does Bun or Ory run on more platforms?
Bun runs on macOS, Windows, Linux, FreeBSD, Android. Ory runs on web, api.
Can I use Bun for free?
Both have a free tier, so you can try either at no cost before committing.
What is Bun best used for?
Bun is most often used for high-performance javascript services prioritising startup time and memory efficiency, single-file executable deployment without node runtime dependencies, monorepo management with workspace support, full-stack development with unified toolchain. Of those, high-performance javascript services prioritising startup time and memory efficiency and single-file executable deployment without node runtime dependencies are not what Ory is typically brought in for.
What can Bun do that Ory cannot?
Ory covers Authentication APIs, Permissions engine, Machine-to-machine tokens, B2B organizations.

Answered from the vendors’ own pages

Ory: What does Ory cost?

Ory has a free Developer tier, a Production plan at $770/year including a $21 monthly credit, a Growth plan at $9,350/year including a $255 monthly credit, and custom Enterprise pricing.

Source
Ory: How is usage metered?

Beyond the included credit, Ory charges per average daily active user (aDAU), per machine-to-machine token, and per permission check, with lower per-unit rates on the Growth plan.

Source
Ory: What payment methods are supported?

Ory accepts credit cards (Visa, MasterCard, Amex) and bank transfer, processed via Stripe.

Source
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