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Software · head to head

Bun vs TeamCity

Bun logo

Bun

Software

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

From
Free
Rated
-
Full reviewWebsite
TeamCity logo

TeamCity

Software

JetBrains continuous integration and delivery server

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; TeamCity detailed pricing requires visiting a calculator and isn't transparent on the main pricing page.

Where they differ

Only the attributes on which Bun and TeamCity actually diverge.

Attributes where Bun and TeamCity differ
AttributeBunTeamCity
Pricing modelopen-sourcefreemium
PlatformsmacOS, Windows, Linux, FreeBSD, Androidweb, windows, mac, linux, 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 TeamCity does not also cover.

Only in TeamCity

  • Build Chains
  • Parallel Test Execution
  • VCS Integration
  • Build History & Analytics
  • Docker & Kubernetes Support
  • Access Control

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 TeamCity
  • Single-file executable deployment without Node runtime dependenciesnot TeamCity
  • Monorepo management with workspace supportnot TeamCity
  • Full-stack development with unified toolchainnot TeamCity
  • Systems programming and shell scripting with JavaScriptnot TeamCity

TeamCity

  • Running build and test pipelines for enterprise software teamsnot Bun
  • Self-hosting CI/CD infrastructure behind a firewallnot Bun
  • Coordinating multi-stage build chains with dependenciesnot Bun
  • Scaling build capacity with additional agentsnot 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

TeamCity

  • Detailed pricing requires visiting a calculator and isn't transparent on the main pricing page.
  • Self-hosted setup and agent management require more operational overhead than fully managed CI/CD services.
  • Additional build agents and users are priced incrementally, which can add up for larger teams.
  • The UI and configuration model have a steeper learning curve compared to YAML-first CI tools.

Pricing, plan by plan

Bun

Free

No published plan breakdown. See the Bun review.

TeamCity

Free
  • Free TierFree
    • Includes 3 build agents
    • 100 build configurations
    • On-premises or Cloud
  • TeamCity Cloud / On-Premises$undefined/month
    • Priced per additional build agent
    • Additional users on Cloud plans
    • Enterprise support options

Which should you pick?

Choose Bun if

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

Choose TeamCity if

  • You need build chains.
  • You want to start without paying.
  • You work on web, windows, mac, linux, api.
  • You also want parallel test execution.
TeamCity review

Questions people ask

Is Bun or TeamCity better?
Neither clearly leads. Bun starts at Free and TeamCity at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bun or TeamCity?
Bun starts at Free and TeamCity at Free.
Does Bun or TeamCity run on more platforms?
Bun runs on macOS, Windows, Linux, FreeBSD, Android. TeamCity runs on web, windows, mac, linux, 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 TeamCity is typically brought in for.
What can Bun do that TeamCity cannot?
TeamCity covers Build Chains, Parallel Test Execution, VCS Integration, Build History & Analytics.
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Related pages

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