Nebula — AI Code Review
AI-Powered Code Review

Review code at the
speed of thought.

Nebula reads every pull request with deep semantic understanding — catching bugs, security flaws, and performance regressions before they reach production. Your team ships faster, with fewer incidents.

Trusted by engineering teams at
VercelLinearSupabaseRetoolPlanetScale
Features

Everything a senior reviewer
would catch — automated.

Nebula combines static analysis, LLM reasoning, and your team's historical patterns to surface issues that matter.

🔍

Semantic bug detection

Beyond syntax and linting — Nebula understands intent. It traces data flow across functions, identifies null-path violations, race conditions, and logic errors that traditional linters miss entirely.

🛡

Security analysis

Detects injection vectors, secret leaks, and OWASP Top 10 vulnerabilities with context-aware severity scoring.

Performance regression

Flags N+1 queries, unnecessary re-renders, and algorithmic complexity changes by diffing against your baseline.

Review in 12 seconds

Median time from PR open to full review report. No queues, no cold starts. Nebula runs in parallel across your repo.

12s
median · p50
🧠

Team memory

Learns your codebase conventions and past review decisions.

🔧

Auto-fix PRs

One-click fixes pushed as suggested changes in your PR.

Workflow

From push to reviewed
in four steps.

Nebula slots into your existing GitHub, GitLab, or Bitbucket flow. No new tools to learn.

01

Push a branch

Open a PR as usual. Nebula listens via webhook — no CLI, no config.

02

Deep analysis

Nebula parses the diff, builds a semantic graph, and cross-references your codebase.

03

Inline review

Comments appear as line-level annotations with severity, explanation, and suggested fix.

04

Merge with confidence

A summary check appears on the PR. Apply fixes, resolve threads, and ship.

Impact

Numbers that compound.

87%
of bugs caught before merge
12s
median review time
4.2M+
PRs reviewed monthly
63%
less time in code review
Pricing

Simple, per-developer pricing.

Start free. Scale when you're ready. No hidden fees.

Starter
$0
/forever
For solo devs and small experiments.
  • 500 PR reviews / month
  • 1 repository
  • Bug & security detection
  • Team memory
  • Auto-fix PRs
Enterprise
Custom
 
For organizations with scale.
  • Everything in Pro
  • Self-hosted / VPC deployment
  • SSO, SAML, audit logs
  • Custom model fine-tuning
  • Dedicated support & SLA
≡ hart

Hosted on hart

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