Bitbucket and GitHub both host Git repositories, and the Git part is identical — same commands, same protocol, same objects. The choice is about everything wrapped around the repository: which CI you inherit, which issue tracker your team already uses, and how much ecosystem you get for free.
Comparisons of these two tend to relitigate features that were decided years ago. Bitbucket dropped Mercurial in 2020; GitHub added private repositories to the free tier in 2019. Most of what is still repeated online is stale. Here is what actually separates them now.
Table of contents
- The thing that decides it for most teams
- Where GitHub is clearly ahead
- Where Bitbucket is clearly ahead
- CI, which is where most of the daily difference lives
- What is genuinely the same
- Migration, and how much it actually costs
- The recommendation, stated plainly
- How this fits the rest of the stack
- FAQ
The thing that decides it for most teams
Are you already running Jira? If yes, Bitbucket is the path of least resistance, and that is not a small consideration.
The integration is genuinely deep rather than a linked issue number: branches created from a Jira ticket, commits and pull requests surfacing on the ticket, deployment status flowing back, and issue transitions driven by commit messages. It works because both products come from the same company and share an identity system.
GitHub integrates with Jira too, and it is a good integration built on webhooks and an app. It is not the same as one product.
If you are not on Jira, this reason evaporates entirely, and GitHub’s ecosystem advantage becomes the dominant factor.
Where GitHub is clearly ahead
- Ecosystem. GitHub Actions has a marketplace of thousands of prebuilt actions. Nearly every tool you might integrate ships a GitHub action first and everything else later, if at all.
- Open source gravity. If your code is public, this is not close. Discovery, contribution, stars, and the entire social layer live on GitHub.
- Third-party tooling. Every code scanner, dependency bot, and deployment platform supports GitHub. Many support Bitbucket as a second-tier target.
- Recruiting and onboarding. New developers know the interface and the workflow. That is a real cost saving on a growing team.
- Codespaces and Copilot are more mature than the equivalents, whether or not you want them.
The ecosystem point compounds in a way that is easy to underestimate. Every integration that exists for GitHub and not for Bitbucket is a small tax, and they add up over years.
Where Bitbucket is clearly ahead
- Atlassian integration, as above. Deep and genuinely useful if you live in Jira and Confluence.
- Pipelines configuration is simpler. One
bitbucket-pipelines.yml, a straightforward mental model, and no reusable-workflow layer to learn. For a small team this is a feature. - Pricing at the top end. Bitbucket’s premium tiers are generally cheaper than the equivalent GitHub Enterprise plans, which matters at scale.
- Required merge checks are built in rather than assembled from branch protection rules and status checks.
- Data Center self-hosting for organisations with hard residency requirements, though GitHub Enterprise Server covers this too.
The Pipelines simplicity is underrated. GitHub Actions is more powerful and correspondingly easier to build something nobody on the team fully understands. A CI configuration that fits on one screen has real value.
CI, which is where most of the daily difference lives
Both give you CI in the same place as the code, and both charge by build minutes. The syntax differs more than the capability.
# bitbucket-pipelines.yml
image: node:20
pipelines:
default:
- step:
name: Test
caches:
- node
script:
- npm ci
- npm test
branches:
main:
- step:
name: Build and deploy
deployment: production
script:
- npm ci
- npm run build# .github/workflows/ci.yml
name: CI
on: [push, pull_request]
jobs:
test:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- uses: actions/setup-node@v4
with:
node-version: 20
cache: npm
- run: npm ci
- run: npm testGitHub Actions wins on breadth — matrix builds across versions and platforms, reusable workflows, a marketplace, and self-hosted runners. Bitbucket Pipelines wins on there being less to learn.
Watch the build-minute pricing on both. It is the line item that surprises teams, particularly with matrix builds that multiply minute consumption faster than anyone estimated. Both bill more for larger runners, and both let you self-host runners to avoid it.
What is genuinely the same
Worth stating clearly, because comparison articles imply differences that do not exist.
- Git itself. Identical. Your commands, hooks, and history do not care.
- Pull requests / merge requests. Both do inline comments, review approvals, draft state, and merge strategies including squash and rebase.
- Branch protection. Both enforce required reviews, required status checks, and restrictions on who can push.
- Private repositories on free tiers. Both. This was a differentiator in 2018 and has not been one since.
- Webhooks and REST APIs. Both comprehensive.
- SSO, SAML, audit logs on paid tiers. Both.
If a comparison tells you one of these is a differentiator, it was written some years ago.
Migration, and how much it actually costs
The repository part is trivial, which surprises people who have been putting it off.
# Full history, all branches and tags
git clone --mirror https://bitbucket.org/team/repo.git
cd repo.git
git remote set-url --push origin https://github.com/org/repo.git
git push --mirror
# Then update every working copy
git remote set-url origin https://github.com/org/repo.gitThat takes minutes. What takes weeks is everything else:
- CI configuration has to be rewritten. There is no automatic translation between the two formats.
- Pull request history does not transfer. Review discussions stay behind unless you export them via API.
- Webhooks and integrations need reconnecting one at a time.
- Deploy keys and access tokens must be reissued everywhere they are used.
- Documentation and internal links pointing at the old host will break.
Budget for the CI rewrite specifically, because it is the one that blocks deploys if it goes wrong. Run both in parallel for a sprint rather than cutting over on a Friday.
One thing that does not have to be part of the migration is your deployment. RunxBuild deploys from a Git repository with build logs, a live route, and rollback to the previous deploy — so which host the repository lives on is a detail rather than a coupling. The GitHub deployment documentation covers how commits map to deploys.
The recommendation, stated plainly
Default to GitHub. The ecosystem advantage is real, it compounds, and every tool you will want to add supports it first. For open source it is not a decision at all.
Choose Bitbucket if you are meaningfully invested in Atlassian. If your team’s work genuinely lives in Jira, the integration is worth more than the ecosystem gap, and the simpler CI is a bonus for a small team.
Do not migrate an existing setup without a specific reason. The repository move is easy and everything around it is not. The other one is slightly nicer does not pay for a fortnight of toolchain work.
And keep the deployment path decoupled from the choice. A team whose deploys are wired so tightly to one host that moving means rebuilding the pipeline has made a decision it did not mean to make.
How this fits the rest of the stack
Both host Git identically; you are choosing an ecosystem. Take GitHub unless Jira is central to how your team works, in which case Bitbucket’s integration earns its place. Whichever you pick, keep deployment decoupled so the choice stays reversible. If you are setting up deploys from a repository and want the build minutes and runtime as separate line items, the RunxBuild hosting calculator shows them apart.
Useful related references:
- Undo Commit on GitHub: What You Can Do in the Browser and What Needs the Terminal
- actions/setup-node: The GitHub Actions Node Setup That Does Not Fight Your Deploy
- Auto Deploy an App From GitHub on RunxBuild
- Deploying from GitHub on RunxBuild
FAQ
Is Bitbucket or GitHub better for private repositories?
Both offer unlimited private repositories on their free tiers. This was a genuine differentiator before 2019 and is not one now — decide on ecosystem and integrations instead.
Which has better CI, Bitbucket Pipelines or GitHub Actions?
GitHub Actions is more capable, with matrix builds, reusable workflows, and a large marketplace. Bitbucket Pipelines is simpler to configure and understand. For a small team the simplicity can be worth more than the power.
How hard is it to migrate from Bitbucket to GitHub?
The repository takes minutes with git clone —mirror and git push —mirror. The work is everything else: rewriting CI configuration, reconnecting integrations, reissuing deploy keys, and accepting that pull request history stays behind.
Does Bitbucket still support Mercurial?
No. Bitbucket removed Mercurial support in 2020 and is Git-only, so any comparison citing Mercurial as a differentiator is out of date.
Should I use Bitbucket if my team uses Jira?
It is the strongest argument for Bitbucket. Branches, commits, pull requests, and deployment status flow into Jira tickets natively because both products share an identity system. GitHub’s Jira integration is good but is built on an app rather than being one product.