Coveralls vs Snyk Code
Coveralls and Snyk Code are both popular tools in the Code Review & Testing space. Both use a freemium pricing model, with Coveralls starting at Free and Snyk Code at Free. Both offer a free tier to get started. Below we break down features, pricing, strengths, and weaknesses to help you decide which tool fits your workflow best.
Last updated: March 2026
Quick Verdict
Choose Coveralls if you want track code coverage over time and ensure test quality in every pr.. Coveralls's biggest strengths include simple setup with most ci providers and free for open-source projects. Choose Snyk Code if you prefer ai-powered security scanning that finds vulnerabilities as you code.. Key advantages include industry-leading vulnerability database and detection and real-time scanning catches issues as you code. It's also rated higher (4.0 vs 3.9).
Track code coverage over time and ensure test quality in every PR.
AI-powered security scanning that finds vulnerabilities as you code.
| Coveralls | Snyk Code | |
|---|---|---|
| Pricing | Free | Free |
| Free Tier | Yes | Yes |
| Pricing Model | Freemium | Freemium |
| Rating | ★ 3.9 | ★ 4.0 |
| Categories | Code Review & Testing | Code Review & Testing, DevOps & Infrastructure |
| Key Features | 6 features | 6 features |
| Feature | Coveralls | Snyk Code |
|---|---|---|
| Code coverage tracking and trend analysis | ✓ | — |
| Pull request coverage reporting | ✓ | — |
| Coverage threshold enforcement | ✓ | — |
| Support for all major languages and CI services | ✓ | — |
| Historical coverage data and charts | ✓ | — |
| Badge generation for repository READMEs | ✓ | — |
| Real-time AI security scanning in your IDE | — | ✓ |
| Vulnerability detection across 30+ languages | — | ✓ |
| AI-generated fix suggestions for security issues | — | ✓ |
| CI/CD pipeline integration for automated scanning | — | ✓ |
| Open-source dependency vulnerability scanning | — | ✓ |
| Container and infrastructure-as-code scanning | — | ✓ |
Coveralls
Pros
- + Simple setup with most CI providers
- + Free for open-source projects
- + Clean interface for tracking coverage trends
- + Good GitHub integration with PR checks
Cons
- − Less feature-rich than Codecov
- − UI feels dated compared to newer alternatives
- − Limited analytics on paid tiers
Snyk Code
Pros
- + Industry-leading vulnerability database and detection
- + Real-time scanning catches issues as you code
- + Actionable fix suggestions save remediation time
- + Comprehensive coverage across code, dependencies, and containers
Cons
- − Free tier limited to a certain number of tests per month
- − Can produce false positives that require triage
- − Enterprise features require significant budget
The Bottom Line
Choose Coveralls if: you want track code coverage over time and ensure test quality in every pr.. It's completely free to use. Keep in mind: less feature-rich than codecov.
Choose Snyk Code if: you prefer ai-powered security scanning that finds vulnerabilities as you code.. It's completely free to use. It holds a higher user rating (4.0 vs 3.9). Keep in mind: free tier limited to a certain number of tests per month.
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