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Semgrep VS Underlayer

Compare Semgrep VS Underlayer and see what are their differences

Semgrep

Semgrep is a fast, open-source, static analysis tool for finding bugs and enforcing code standards at editor, commit, and CI time.

Rating
0 reviews
Pricing
Open source
Alternatives Is it good?
Underlayer

Build courses by API, drop them into your product with one iframe, and get told who finished. No portal, no learner accounts, priced per course view.

Rating
0 reviews
Pricing
Freemium $149 / Monthly
Alternatives Is it good?
Modelence
Create production-ready applications with zero code sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Semgrep seems to be more popular. It has been mentioned 27 times since March 2021.

social mentions
27 vs 0
Code Analysis popularity
100% vs 0%
alternatives listed
99 vs 2

Base details

Website, pricing, platforms and company facts side by side.

Semgrep
Underlayer
Website semgrep.dev underlayerhq.com
Pricing
Open source
Freemium $149 / Monthly Official pricing
Company — Startup from the United Arab Emirates · 1 - 9 employees · 2026
Listed in
Code Analysis Code Coverage Code Quality Developer Tools +1
Education E-learning Education / E-Learning

About Semgrep and Underlayer

In their own words, as submitted to SaaSHub.

Semgrep
Underlayer

No description of Semgrep yet.

Underlayer is headless, API-first training for SaaS products. Instead of sending your users to a separate LMS portal, you generate a course, embed it where they already work, and get every completion sent back to your own systems. How it works Create a course. Generate one from a doc or a prompt...

Read more about Underlayer

Features and specs

What each product offers, as listed by its team.

Semgrep 5 features
Underlayer 0 features
  • Easy to Use
    Semgrep offers a straightforward setup and simple syntax, making it easy for developers to start using it for static code analysis without extensive configuration.
  • Language Support
    It supports a wide range of programming languages, including popular ones like Python, JavaScript, Java, and more, making it versatile for different codebases.
  • Customizable Rules
    Users can create custom rules tailored to their specific codebase needs, allowing for more control and precision over code analysis.
  • Real-time Analysis
    Semgrep can be integrated into CI/CD pipelines, providing real-time feedback on code submissions and helping to catch issues early in the development process.
  • Open Source
    Being open source, it allows for community contributions and transparency, enabling users to understand and trust the tool more deeply.

Possible disadvantages

  • Performance Overhead
    Running extensive checks or using it on a large codebase might introduce a performance overhead, potentially slowing down development and analysis processes.
  • Learning Curve for Custom Rules
    While powerful, creating and fine-tuning custom rules can be challenging and require a good understanding of the tool and the code patterns to be detected.
  • Limited Advanced Features
    Compared to some commercial static analysis tools, Semgrep might lack certain advanced features such as deep data flow analysis or sophisticated vulnerability detection out-of-the-box.
  • False Positives
    Like many static analysis tools, Semgrep can produce false positives, requiring developers to manually review and filter out incorrect findings.
  • Community Support Dependency
    As an open-source platform, the availability of new features, bug fixes, and support heavily relies on the community, which may not always align with enterprise needs.

No features have been listed yet.

Videos

Walkthroughs and reviews on video.

Semgrep 3 videos + Add
Underlayer 1 video + Add

Semgrep: a lightweight static analysis tool for security consultant and hackers

More videos

  • - Using Semgrep and Jenkins for Static Code Analysis
  • - Workshop: Scaling your AppSec Program with Semgrep

Underlayer demo

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Semgrep
Underlayer
100% 100%
Code Analysis
0% 0%
0% 0%
Education
100% 100%
100% 100%
Developer Tools
0% 0%
0% 0%
E-learning
100% 100%

Questions & Answers

As answered by people managing Semgrep and Underlayer.

Who are some of the biggest customers of your product?

Underlayer's answer:

it's pre-launching

What makes your product unique?

Underlayer's answer:

Underlayer is training with no portal. You build a course by API, by MCP, or in the visual builder, and add it to your product with one iframe. Then signed webhooks tell your systems who finished. Learners never create an account or leave your app, and the player uses your theme, so it looks like part of your product. We charge per course view, not per seat, and every price and overage rate is published.

Why should a person choose your product over its competitors?

Underlayer's answer:

Most course tools, like Coassemble, Trainn and LearningStudioAI, assume training happens on their own site: learners sign up, log in and get enrolled, and you pay per seat. Underlayer takes the opposite approach:

No learner accounts. You pass in your own user IDs and we track progress against them. Built for developers. A full REST API covers every resource, and an MCP server lets AI agents create and edit courses. Results in your own tools. Signed webhooks send completions to your CRM, your product or your data warehouse. SCORM 1.2 and 2004 export for customers who still need to load courses into an LMS. Public pricing. Plans start at $149/month for 25,000 course views, with unlimited learners and no sales call required.

How would you describe the primary audience of your product?

Underlayer's answer:

SaaS product, customer success and engineering teams who want onboarding, product education or compliance training inside their own app. It also suits platforms that train other people's users, like partner networks, marketplaces and field-ops tools, where a separate LMS login gets in the way.

What's the story behind your product?

Underlayer's answer:

Every company putting training in front of its users hit the same wall: the LMS wanted to own the learner. That meant a separate portal, a second login and a per-seat bill for people who never opened a course. We built Underlayer as the layer underneath instead. You keep the product and the user relationship. We handle building the course, playing it and tracking progress, and we stay out of the way.

Which are the primary technologies used for building your product?

Underlayer's answer:

Next.js 16 (App Router) with React 19 and TypeScript, Tailwind CSS v4, and Supabase (Postgres with row-level security, Auth and Storage). Claude from Anthropic generates courses with AI. Stripe handles billing and Resend sends email. There is also a remote MCP server with OAuth 2.1 for AI-agent access.

User comments

Share your experience with using Semgrep and Underlayer. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Semgrep 27 mentions
Underlayer 0 mentions

View more

Tracking Underlayer since Sep 2026.

Alternatives to Semgrep and Underlayer

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