Semgrep Alternative: AI That Finds Logic Flaws Without Writing Rules | Nurbak

SEMGREP ALTERNATIVE

A Semgrep alternative that finds flaws without writing rules

Semgrep is a powerful rule-based engine: you can write your own rules and run them anywhere. Nurbak takes a different angle: its own self-hosted AI model reasons over your code to find logic and authorization issues like IDOR or missing auth, with no rules to write or maintain.

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We never store your code. We only write when you ask for a fix PR.

No rules to write

Nurbak reads your code the way a reviewer would, following data across files to find IDOR, missing auth, JWT flaws, SSRF or SQL injection, with file and line.

Your code stays off third-party AI

The analysis runs on Nurbak's self-hosted model on ephemeral infrastructure, not on OpenAI or Anthropic, with a hash-chained audit trail.

More than code in one scan

Dependency CVEs from OSV, secrets in git history, and GitHub Actions, Docker, Terraform and Kubernetes misconfigurations.

Fix PRs with a regression test

One click opens a pull request with the fix and a security test that keeps the bug from coming back.

Semgrep vs Nurbak at a glance

A factual summary based on the information Semgrep publishes on its website (September 2026). Products and plans change, so check semgrep.dev for current details.

AspectSemgrepNurbak
Main focusAppSec platform with Semgrep Code (SAST), Semgrep Supply Chain (SCA) and Semgrep Secrets, plus an open source Community EditionThe security of your repo: your own code, dependencies, secrets and CI and IaC configuration
How code is analyzedRule-based static analysis with 3000+ open source rules and support for custom rules. Semgrep also offers Multimodal, which it describes as combining static analysis and AI reasoningNurbak's own AI model reasons over the code across files, with no rules to write
Where the code is analyzedVaries by product and setup. See their siteNurbak's self-hosted model on ephemeral infrastructure, not sent to OpenAI or Anthropic
Dependencies (SCA)Semgrep Supply Chain, with reachability analysisKnown CVEs from the OSV database
SecretsSemgrep SecretsHardcoded secrets in the code and secrets in git history
FixesAI-assisted triage and autofix, per Semgrep's siteOne-click pull request with the fix and a security regression test
Pricing modelFree for up to 10 contributors and 10 repos, Teams from USD 30 per contributor per month for Code, Enterprise custom. See their sitePer repo, not per developer: USD 79/month (1 repo), USD 199/month (up to 5), Enterprise above 5

Which one should you choose?

Choose Semgrep if

You have an AppSec team that wants to write and tune its own rules, run an open source engine in the CLI, IDE and CI, and enforce custom policies across many repos.

Choose Nurbak if

You want an AI that reads your code like a pentester without writing rules, with the analysis on a self-hosted model, fixes as pull requests with tests, and a price based on repos, not headcount.

Use both if

You want to keep your Semgrep rules as guardrails in CI and add Nurbak as a reasoning-based review that looks for logic and authorization flaws.

How to try Nurbak next to Semgrep

1

Create an account and connect GitHub. Public and private repos both work.

2

Pick a repo. Nurbak's own model analyzes it on ephemeral infrastructure.

3

Get a 0 to 100 security score and findings with file, line and a plain-language explanation.

4

Open a pull request with the fix and a regression test in one click.

5

Compare the findings with your Semgrep results. Your rules keep working as they are.

Semgrep alternative FAQ

What is Semgrep?

Semgrep is a static analysis platform. Its Community Edition is an open source engine under the LGPL 2.1 license with 3000+ rules, and the commercial platform adds Semgrep Code (SAST), Semgrep Supply Chain (SCA) and Semgrep Secrets. Teams can also write custom rules for their own code patterns.

What is the best Semgrep alternative?

It depends on why you use Semgrep. If you value writing custom rules, a rule-based engine is still the right tool. If you want to find logic and authorization issues like IDOR or missing auth without writing rules, with the analysis on a model that doesn't send your code to third-party AI providers, Nurbak is built for that. See AI SAST for how it works.

Is Semgrep a SAST tool?

Yes. Semgrep Code is Semgrep's SAST product, and the Community Edition is an open source static analysis engine. Nurbak is also SAST, but instead of matching rules its own AI model reasons over the code. See SAST vs DAST for where static analysis fits.

Semgrep vs Snyk vs SonarQube: where does Nurbak fit?

Semgrep, Snyk and SonarQube are established tools with different strengths, and each has its own pages and plans. Nurbak concentrates on your GitHub repo, with AI reasoning over your code, fixes as pull requests and per-repo pricing. We compare them in detail in Snyk alternative and SonarQube alternative.

Is my code sent to a third-party AI?

The analysis runs on Nurbak's own self-hosted model on ephemeral infrastructure, so your code is not sent to OpenAI or Anthropic to be analyzed, and every step is recorded in a hash-chained audit trail. Only if you ask for a fix pull request and give explicit consent is the fix generated with Claude.

How does pricing compare?

Semgrep is free for up to 10 contributors and 10 repos, and its Teams plan starts at USD 30 per contributor per month (check their site for current details). Nurbak charges per repo, not per developer: the first scan is free with the 3 most important findings in full and 1 free fix PR, then USD 79/month for 1 repo or USD 199/month for up to 5 repos with daily scans. See pricing.

Does Nurbak also check dependencies and secrets?

Yes. Nurbak checks your dependencies against the OSV database, finds hardcoded secrets and secrets in git history, and reviews GitHub Actions, Docker, Terraform and Kubernetes configuration. More in software composition analysis, secret scanner and GitHub security scanner. For the main vulnerability categories, see our OWASP Top 10 2025 guide.

See what Nurbak finds in your code

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Semgrep, Snyk and SonarQube are trademarks of their respective owners. This comparison is based on publicly available information from their websites as of September 2026 and may change.