Splinter
Open source tool for testing web applications.
Pricing
Free tier
Flat rate
Adoption
↘CoolingLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is Splinter?
Splinter is an open-source tool that simplifies the process of testing web applications. It provides a simple and powerful API to automate browser actions, making it easier to ensure your web application works as expected across different browsers and environments.
Key differentiator
“Splinter stands out for its simplicity and ease of integration into existing Python-based testing workflows, making it an ideal choice for teams looking to quickly add robust web application testing capabilities.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
API requires Python-specific patterns, TypeScript SDK is community-maintained
v0.1 to v0.2 migration required rewriting chain definitions
Does not natively support modern browsers like Microsoft Edge or Safari without additional configuration
Tests can become slow and unreliable when dealing with heavy JavaScript frameworks such as React or Angular
Fit analysis
Who is it for?
✓ Best for
Developers who need to automate browser testing for their web applications
Teams that require cross-browser testing capabilities without the complexity of setting up multiple environments manually
✕ Not a fit for
Projects requiring real-time interaction with a live server during tests, as Splinter operates in a more controlled environment
Applications where performance profiling is critical, as browser automation can introduce additional overhead
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
How Fast Is It?
Ecosystem
Relationships
Alternatives
Works well with
Next step
Get Started with Splinter
Step-by-step setup guide with code examples and common gotchas.