Raise code quality across your whole org

Basalt gives large engineering teams one consistent way to validate code across sprawling repositories, tools, and workflows.

no card required  ·  21-day pilot
fig 1. org-wide review mesh
over 7,400+ teams ship with Basalt
QuillstackAverlyRetort NIVARABrixelslateway PulsemapFernlight
LoomwireJettisonOpsline CAMBERKILNsandpiper PortsideMeridian

One validation layer for the whole codebase

Basalt catches more defects because it both reads and runs your code.

Contextual PR review

Reviews every pull request with your full codebase in context, so real defects surface before the merge.

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sandbox

Generated test runs

Writes and executes tests in an isolated sandbox to catch runtime defects and edge cases that review alone misses.

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[ Security ]

Security built for the enterprise

SOC 2, with governance controls in the box.

Read the security brief
01

Cloud or self-hosted

Run Basalt in our cloud, or deploy the whole stack inside your own environment.

02

Decide where your code lives

Keep code and review infrastructure aligned with your security and data residency requirements.

03

Controls that scale with you

SOC 2 compliance, SSO, and audit trails for secure deployment across every team.

Review that adapts to every team

Basalt lets teams define review configuration from the org level down to the individual developer, so every team gets review tuned to its own standards.

Learn more

Comment types

Select the comment types to include in PR review
Syntax
Style
Logic
Strictness level lowmediumhigh
kestrel

Comment types

Select the comment types to include in PR review
Syntax
Style
Logic
Strictness level lowmediumhigh
marlin
ways Basalt adapts to your team
api/ .basalt/ config.json rules.md
01

.basalt/

Scope review settings, rules, and context to the directories each team owns.

4 guide files found 8 rule files found 1 agent file found
02

auto-indexed rules

Picks up the rule files and agent instructions already sitting in your repo for richer review context.

1 new learning
03

learning

Adapts to the feedback your reviewers leave and personalises reviews over time.

04

full codebase context

Complete context across your codebase, and across the repositories next to it.

“We’ve tried more review tools than I can count. Basalt outperforms every one of them by a mile. Honestly the only AI reviewer that doesn’t get in my way.”
Portrait — photo by Thanh Xuan Nguyen Ly on Pexels
CTO @ Brixel
Priya Rangarajan
View the Brixel case study
[ Independence ]

Independent by design

Basalt stays independent of any model, editor, or coding agent, so you are never locked into one ecosystem.

Learn why it matters
ways Basalt plugs into your workflow
01

Tight agent integrations

Launch the coding agent of your choice in one click, carrying the Basalt comment, full context, and the suggested fix.

02

Basalt MCP

Read review comments, apply fixes, and manage coding patterns straight from your agent.

03

Editor plugins

View and resolve review comments without leaving the editor you already work in.

04

Model agnostic

Basalt routes to the strongest available models at any moment, so reviews never go stale.

See what Basalt catches.

See examples
2.4B lines reviewed / month
860K PRs reviewed / month
PR #4522quillstack/coreresource_leak

Temp directory leaks on an early exception before try/finally

PR #10846averly/averly-apisecurity

Access control bypass via ambiguous model name collision

PR #10847brixel/ledgerdata_integrity

Seeding creates duplicate null-named providers on every restart

PR #10849pulsemap/edgelogic

Missing prefix breaks OAuth in multi-tenant deployments

PR #57714fernlight/coreconcurrency

Race condition returns stale experiment results after a date update

PR #4450slateway/simlogic

Field name mismatch silences the child-span reconciliation path

7,400+ teams on Basalt
412K issues addressed / month

Ready to raise the floor on every review?

FAQ

Can Basalt be deployed on-prem?

Yes. Basalt can run fully on-prem for enterprise customers with strict data privacy or compliance requirements. To scope a deployment, talk to our team. Basalt is also SOC 2 Type II, HIPAA, and GDPR compliant.

Which source hosts do you support?

Basalt connects to the major hosted and self-managed Git providers, including self-hosted instances behind your VPN.

How does Basalt handle very large codebases?

Repositories are indexed incrementally and reviewed against a graph of the surrounding code, so review latency stays flat as the monorepo grows.

How do we begin an evaluation?

Most teams start with a 21-day pilot on two or three active repositories, then compare defect catch rate against their current review process.

Which programming languages does Basalt support?

Every widely used server, web, and systems language, plus infrastructure and configuration formats such as Terraform, SQL, and YAML.

Can’t find your answer here? Contact us.