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Software · head to head

DeepSource vs Bun

DeepSource logo

DeepSource

Software

Automated code review and AI-powered code fixes for engineering teams.

From
Free
Rated
-
Full reviewWebsite
Bun logo

Bun

Software

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

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: DeepSource open Source plan caps at 1,000 reviewed pull requests and 1,000 formatting runs per month.; Bun linux requires kernel 5.6 or higher (5.1 minimum but with compatibility issues); older systems not supported

Where they differ

Only the attributes on which DeepSource and Bun actually diverge.

Attributes where DeepSource and Bun differ
AttributeDeepSourceBun
Pricing modelfreemiumopen-source
Platformsweb, apimacOS, Windows, Linux, FreeBSD, Android

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 DeepSource

  • Automated pull request review
  • AI-powered autofix
  • Automated code formatting
  • Monorepo support
  • API and webhooks
  • Bring-your-own-key AI

Only in Bun

Nothing recorded that DeepSource does not also cover.

What people use each for

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

DeepSource

  • Automating pull request code review for engineering teamsnot Bun
  • Auto-fixing detected code issues with AInot Bun
  • Enforcing code formatting standards automaticallynot Bun
  • Scanning large monorepos for quality issuesnot Bun
  • Running self-hosted AI review in regulated environmentsnot Bun

Bun

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

Where each one falls short

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

DeepSource

  • Open Source plan caps at 1,000 reviewed pull requests and 1,000 formatting runs per month.
  • AI Review beyond the included credit is billed per 10K lines of code, which can add unpredictable cost.
  • Self-hosted deployment and BYOK AI are Enterprise-only features.
  • Enterprise pricing is not published and requires contacting sales.

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

Pricing, plan by plan

DeepSource

Free
  • Open SourceFree
    • Free for public repositories
    • 1,000 pull requests reviewed/month
    • 1,000 automated formatting runs/month
  • Team$24/month
    • Unlimited repositories and pull request reviews
    • $100 annual AI Review credit per user
    • Monorepo support
  • Enterprise$undefined/month
    • Self-hosted deployment
    • Bring-your-own-key AI Review
    • SSO

Bun

Free

No published plan breakdown. See the Bun review.

Which should you pick?

Choose DeepSource if

  • You need automated pull request review.
  • You want to start without paying.
  • You work on web, api.
  • You also want ai-powered autofix.
DeepSource review

Choose Bun if

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

Questions people ask

Is DeepSource or Bun better?
Neither clearly leads. DeepSource starts at Free and Bun at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, DeepSource or Bun?
DeepSource starts at Free and Bun at Free.
Does DeepSource or Bun run on more platforms?
DeepSource runs on web, api. Bun runs on macOS, Windows, Linux, FreeBSD, Android.
Can I use DeepSource for free?
Both have a free tier, so you can try either at no cost before committing.
What is DeepSource best used for?
DeepSource is most often used for automating pull request code review for engineering teams, auto-fixing detected code issues with ai, enforcing code formatting standards automatically, scanning large monorepos for quality issues. Of those, automating pull request code review for engineering teams and auto-fixing detected code issues with ai are not what Bun is typically brought in for.
What can DeepSource do that Bun cannot?
DeepSource covers Automated pull request review, AI-powered autofix, Automated code formatting, Monorepo support.

Answered from the vendors’ own pages

DeepSource: What does DeepSource cost?

The Open Source plan is free for public repos; Team is $24 per user/month billed yearly with a $100 annual AI Review credit; Enterprise is custom-priced with self-hosted options.

Source
DeepSource: Is there a free plan, and what are its limits?

Yes, the free Open Source plan covers public repositories with 1,000 pull requests reviewed per month and 1,000 automated formatting runs per month.

Source
DeepSource: How is AI Review usage metered?

Team plans include a $100 annual AI Review credit per user, with additional usage billed at Standard ($8/10K LOC) or Advanced ($15/10K LOC) tiers.

Source
DeepSource: Can I change or cancel my plan?

Yes, subscriptions can be downgraded or canceled at any time.

Source
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