LGTM vs Semgrep: Which is Better in 2026?
Choosing between LGTM and Semgrep comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
LGTM
Code analysis platform integrated into GitHub for identifying security vulnerabilities.
Best for you if:
- • You need something completely free
- • You need security features specifically
- • A code analysis platform that identified security issues and code quality problems.
- • Powered by CodeQL technology, it integrated with GitHub for continuous analysis.
Semgrep
Static analysis for finding bugs
Best for you if:
- • You need developer tools features specifically
- • Semgrep is a code analysis tool for finding bugs and enforcing standards
- • It scans code with lightweight pattern matching for security and quality
| At a Glance |  LGTM |  Semgrep |
|---|---|---|
Starts at | Free | $40/moTeams |
Best For | Security | Developer Tools |
Rating | - | - |
Choose LGTM or Semgrep?
Choose LGTM if
Code analysis platform integrated into GitHub for identifying security vulnerabilities.
- Integrated directly into GitHub for seamless workflow (now via GitHub code scanning)
- Utilized powerful CodeQL analysis engine
- Automated detection of security issues
- You want a fully free tool (Semgrep requires payment)
- Your work is security-shaped, not developer tools-shaped
Choose Semgrep if
Static analysis for finding bugs
- Code analysis tool
- Good pattern matching
- Multi-language
- Your work is developer tools-shaped, not security-shaped
| Feature | LGTM | Semgrep |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | No ratings yet | ★4.6/5 54 reviews |
| Categories | SecurityDeveloper Tools | Developer ToolsSecurity |
In-Depth Analysis
LGTM
Code analysis platform integrated into GitHub for identifying security vulnerabilities.
Strengths
- +Integrated directly into GitHub for seamless workflow (now via GitHub code scanning)
- +Utilized powerful CodeQL analysis engine
- +Automated detection of security issues
- +Provided code quality insights
Weaknesses
- -No longer available as a standalone product
- -Requires migration to GitHub code scanning for continued use of its core functionality
- -Advanced build configurations might require manual migration effort
Key features
Semgrep
Static analysis for finding bugs
Strengths
- +Code analysis tool
- +Good pattern matching
- +Multi-language
- +Active development
- +Good for security
Weaknesses
- -Learning curve
- -Enterprise features paid
- -False positives
- -Configuration needed
- -Resource usage
Key features
Pricing: LGTM vs Semgrep
| Plan | LGTM | Semgrep |
|---|---|---|
| Tier 1 | N/A | Free Community |
| Tier 2 | N/A | $40 Teams |
| Tier 3 | N/A | Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on LGTM pricing and Semgrep pricing.
Who Should Use What?
On a budget?
LGTM is free. Semgrep is freemium.
Go with: LGTM
Want the highest-rated option?
Neither has user reviews yet.
Go with: LGTM
Value user reviews?
Neither has user reviews yet.
Go with: Semgrep
3 Questions to Help You Decide
What's your budget?
LGTM is free. Semgrep is freemium. Go with LGTM if free matters most.
What's your use case?
LGTM is a security tool. Semgrep is in developer tools. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
Semgrep
- Free tier available
- Our pick for this comparison
LGTM
- Completely free
- Better fit for security
The Bottom Line
Semgrep is our pick. That said, LGTM is free, hard to beat on price.
Frequently Asked Questions
Is LGTM or Semgrep better?
Semgrep is rated in our evaluation. LGTM is free and Semgrep is freemium.
What are LGTM and Semgrep used for?
LGTM: Code analysis platform integrated into GitHub for identifying security vulnerabilities.. Semgrep: Static analysis for finding bugs.
What does LGTM cost vs Semgrep?
LGTM is completely free. Semgrep is freemium (free tier + paid plans). Visit their websites for detailed pricing.