LGTM vs DeepSource: Which is Better in 2026?
Choosing between LGTM and DeepSource 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.
Bottom line: DeepSource is our overall pick for developer tools workflows. Pick LGTM if you need security.
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.
DeepSource
Static analysis for code quality and security
Best for you if:
- • You need developer tools features specifically
- • DeepSource is an automated code review tool that finds and fixes code quality issues
- • It analyzes code for bugs, anti-patterns, and security issues with auto-fix capabilities
| At a Glance |  LGTM |  DeepSource |
|---|---|---|
Starts at | Free | $12/month per userPro |
Best For | Security | Developer Tools |
Rating | - | - |
Choose LGTM or DeepSource?
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 (DeepSource requires payment)
- Your work is security-shaped, not developer tools-shaped
Choose DeepSource if
Static analysis for code quality and security
- Code analysis platform
- Auto-fix features
- Good for code quality
- Your work is developer tools-shaped, not security-shaped
| Feature | LGTM | DeepSource |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | No ratings yet | ★4.7/5 32 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
DeepSource
Static analysis for code quality and security
Strengths
- +Code analysis platform
- +Auto-fix features
- +Good for code quality
- +CI integration
- +Good free tier
Weaknesses
- -False positives
- -Limited languages
- -Newer platform
- -Community smaller
- -Enterprise features limited
Key features
Pricing: LGTM vs DeepSource
| Plan | LGTM | DeepSource |
|---|---|---|
| Tier 1 | N/A | Free Free |
| Tier 2 | N/A | $12 month per user Pro |
| Tier 3 | N/A | $24 month per user Team |
| Tier 4 | N/A | custom Enterprise |
Pricing verified from each vendor's public pricing page. Compare in detail on LGTM pricing and DeepSource pricing.
Who Should Use What?
On a budget?
LGTM is free. DeepSource 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: DeepSource
3 Questions to Help You Decide
What's your budget?
LGTM is free. DeepSource is freemium. Go with LGTM if free matters most.
What's your use case?
LGTM is a security tool. DeepSource is in developer tools. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
DeepSource
- Free tier available
- Our pick for this comparison
LGTM
- Completely free
- Better fit for security
The Bottom Line
DeepSource is our pick. That said, LGTM is free, hard to beat on price.
Frequently Asked Questions
Is LGTM or DeepSource better?
DeepSource is rated in our evaluation. LGTM is free and DeepSource is freemium.
What are LGTM and DeepSource used for?
LGTM: Code analysis platform integrated into GitHub for identifying security vulnerabilities.. DeepSource: Static analysis for code quality and security.
What does LGTM cost vs DeepSource?
LGTM is completely free. DeepSource is freemium (free tier + paid plans). Visit their websites for detailed pricing.