Qodo Bug Scanner — v2
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Bug scanner // live Built by Qodo · est. 2023

Is AI shipping bugs into your repo?

Free agentic code review. We scan your last 10 merged PRs and surface the bugs that slipped through — race conditions, N+1 loops, broken contracts. Results in 10–30 minutes.

1,000+ repos · scanned · free
>_
Public repo
Free · 10–30 min · no data retained
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Scan a private repo Fill 3 fields · instructions to your inbox
Security & architecture →
/ 01 — how it works

The second pair of eyes your PRs never got.

No setup. No tokens. Paste a repo, get a prioritized list of bugs in your last 10 merged PRs — ranked by severity, backed by Qodo's agentic reviewer.

/ 01

Agentic review,
not another linter.

Qodo's reviewer ingests full-repo context, chases state across files, and compares patterns against 100+ open-source benchmarks. Style nits don't ship. Real bug classes do.

441function commitBeforeMutationEffects(fiber) {
442  if (fiber.flags & Snapshot) { /* state read */ } race condition
443  const current = fiber.alternate;
444  commitBeforeMutationLifeCycles(current, fiber); // mutates on next tick
445}
/ 02

Find hidden
bugs.

Issues that slipped past human reviewers and shipped to production — now sitting quietly until they page you at 2am.

/ 03

Get a health
score.

Per-repo grade vs. 100+ benchmarks. Projected annual bug count. Severity distribution. One glance tells you if your review process is leaking.

/ 02 — the math

Industry average
vs. with Qodo.

Measured across 100 open-source repos in 10 languages. Same analyzer running on your repo in the next 30 minutes.

/ benchmark
0
Open-source repos analyzed across 10 languages — Python, TS, Go, Rust, Java, Ruby, C++, PHP, Swift, Kotlin.
/ industry average
1.4
Issues per merged PR — bugs that cleared human code review and shipped anyway. Found retroactively.
/ with qodo
85%
Fewer issues reach production when Qodo reviews every PR before merge. Not after. Before.
/ 03 — what you get

Scan results,
exactly like this.

A grade, a gauge, a prioritized list of findings with file paths and line numbers. No fluff. Open it in a tab, triage in a standup.

// Issues surfaced
17 issues
4 critical 9 important 4 minor
10 PRs scanned · 1.7 issues / PR
Critical
Race condition in concurrent state update
packages/react-reconciler/ReactFiberWorkLoop.js:442
Important
N+1 query pattern in dashboard loader
src/dashboard/DashboardLoader.ts:88
Important
Sort comparator violates negative/zero/positive contract
lib/utils/sortByPriority.ts:23
Minor
Potential null deref on user.profile.name
apps/web/components/AvatarCard.tsx:17
View real sample reports

Ready to find what your
reviewers missed?

Free · takes 10–30 minutes · no install
/ 05 — questions

Frequently asked.

Short, honest answers. No sales pitch, no marketing filler.

What does this code review tool actually scan?+
It runs Qodo's agentic reviewer across your 10 most recent merged PRs, flagging issues like N+1 query patterns, race conditions in concurrent state updates, sort comparators that violate the negative/zero/positive contract, and database connections used before initialization. Real bug classes, not style warnings.
How is this different from a linter or static analysis tool?+
Linters work on syntax and local scope. This tool uses full repo context to catch bugs that require understanding state flow, cross-file interactions, and runtime behavior. The sort comparator that ships clean through ESLint because the syntax is valid. The N+1 loop that only appears when a UI component mounts. That's the gap.
How can I trust these aren't false positives?+
Each bug type in the underlying research was validated against a subsequent fix PR in the same repo. A human developer wrote a fix, which confirms the issue was real. The median time between the bug merging and the fix landing was 16 days. The mean was 46.
How does the code review tool work?+
Public repos can be scanned directly by entering your owner/repo and clicking Scan. For private repos, fill out the request form with your work email and repository details and we'll reach out with access instructions. The tool is free for the first 1,000 scans across both public and private repos.
What does the scanner report include?+
A prioritized list of issues by severity (critical vs. important), file paths and line numbers for each finding, an industry comparison against 90 scanned repos, and a projected annual bug estimate.
How is the free scanner different from the paid Qodo product?+
This scanner runs a one-time analysis on your last 10 PRs with no account, no setup, and no ongoing integration. The paid Qodo product reviews every PR as it opens, uses full codebase context and PR memory across your entire history, enforces team-specific rules, and integrates directly via Qodo's Git Plugin. The scanner shows you what's already shipped. Qodo stops it before it does.
How do I interpret the results, and what are the next steps?+
The report scores your repo based on bug severity and frequency, compared against 100+ open-source repos we've analyzed. Each finding includes a file path, line number, and description of the bug class so your team can triage immediately. If your repo scores a C or below, or if you're seeing critical findings in merged PRs, that's a signal your current review process has a structural gap. From there: you can fix the flagged issues directly using the line references in the report, try Qodo free to get the same analysis running on every PR going forward, or reach out if you're working at enterprise scale and need full codebase context, rules enforcement, and Git integration.

Scan a private repo

Enter your details and we'll email a secure invite. One command via terminal, authorize read-only access, scan starts automatically.

Token encrypted · deleted after scan Results in 10–30 min Nothing to install

Check your email for the invite code.