ESLint vs Semgrep: Which is Better in 2026?
Choosing between ESLint 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.
Bottom line: ESLint wins this matchup. Testing Library is our overall Testing & QA pick. Testing Library is our free Testing & QA pick. Pick Semgrep if you need a free tier to start with.
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
ESLint
Pluggable JavaScript and TypeScript linter
Best for you if:
- • You want a fully free tool (Semgrep requires payment)
- • You want industry standard
- • You want highly configurable
Semgrep
Static analysis for finding bugs
Best for you if:
- • You want code analysis tool
- • You want good pattern matching
| At a Glance | ESLint | Semgrep |
|---|---|---|
Starts at | FreeFree tier available | FreeFree tier available |
Best For | Developer Tools | Developer Tools |
Rating | 4.5/5 | 4.6/5 |
Free plan | Yes | Yes |
Choose ESLint or Semgrep?
Choose ESLint if
Pluggable JavaScript and TypeScript linter
- You want a fully free tool (Semgrep requires payment)
- You want industry standard
- You want highly configurable
Choose Semgrep if
Static analysis for finding bugs
- You want code analysis tool
- You want good pattern matching
| Feature | ESLint | Semgrep |
|---|---|---|
| Pricing Model | Free | Freemium |
| User Rating | ★4.5/5 1,200 reviews | ★4.6/5 56 reviews |
| Categories | Developer ToolsCode Review | Developer ToolsSecurity |
In-Depth Analysis
ESLint
Pluggable JavaScript and TypeScript linter
ESLint's pricing is exceptionally generous, as it is entirely free and open-source.
Strengths
- +Industry standard
- +Highly configurable
- +Great ecosystem
Weaknesses
- -Configuration complexity
- -Can be slow on large codebases
- -Plugin version conflicts
Key features
Semgrep
Static analysis for finding bugs
Semgrep offers a genuinely useful free tier (10 contributors, 50 repos) that covers most small teams.
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: ESLint vs Semgrep
| Plan | ESLint | Semgrep |
|---|---|---|
| Tier 1 | Free Free | 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 ESLint pricing and Semgrep pricing.
Who Should Use What?
On a budget?
ESLint is free. Semgrep is freemium.
Go with: ESLint
Want the highest-rated option?
ESLint: 4.5/5 (1,200 reviews). Semgrep: 4.6/5 (56 reviews).
Go with: Semgrep
Value user reviews?
ESLint: 1,200 reviews (4.5/5). Semgrep: 56 reviews (4.6/5).
Go with: ESLint
3 Questions to Help You Decide
What's your budget?
ESLint is free. Semgrep is freemium. Go with ESLint if free matters most.
What's your use case?
Both are developer tools tools. Compare their specific features to decide.
How important are ratings?
Semgrep is rated higher: 4.6/5 vs 4.5/5.
Key Takeaways
ESLint
- Larger review base (1,200 reviews)
- Completely free
- Our pick for this comparison
Semgrep
- Higher user rating: 4.6/5 vs 4.5/5
The Bottom Line
ESLint wins this matchup. Testing Library is our overall Testing & QA pick. Testing Library is our free Testing & QA pick.
Frequently Asked Questions
Is ESLint or Semgrep better?
ESLint is rated in our evaluation. ESLint is free and Semgrep is freemium.
What are ESLint and Semgrep used for?
ESLint: Pluggable JavaScript and TypeScript linter. Semgrep: Static analysis for finding bugs.
What does ESLint cost vs Semgrep?
ESLint is completely free. Semgrep is freemium (free tier + paid plans). Visit their websites for detailed pricing.