Leakage
Write memory leak tests for your JavaScript applications.
Pricing
Free tier
Flat rate
Adoption
↘CoolingLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is Leakage?
Leakage is a tool that helps developers write and run memory leak tests in their JavaScript applications, ensuring efficient memory usage and preventing performance issues caused by leaks.
Key differentiator
“Leakage stands out as an essential tool for developers looking to automate the detection of memory leaks in their JavaScript applications, offering detailed insights and integration with popular testing frameworks.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
Leakage is primarily designed for JavaScript applications and may not work seamlessly in other runtime environments or with compiled languages.
Integrating Leakage into existing projects requires significant configuration, including setting up test frameworks and modifying application code to enable leak detection.
Running memory leak tests with Leakage can introduce noticeable performance slowdowns, especially in large-scale applications where extensive testing is required.
As an open-source project, the community around Leakage is relatively small, leading to fewer contributions, slower issue resolution, and limited user-generated documentation or examples.
Fit analysis
Who is it for?
✓ Best for
JavaScript developers who need to ensure their applications do not suffer from memory leaks, especially those working on long-running processes or complex web apps.
Teams that require detailed insights into how and where memory is being leaked in their JavaScript codebases.
✕ Not a fit for
Projects that are primarily focused on frontend performance optimization without a need for deep memory leak analysis
Developers who prefer manual testing methods over automated tools
Cost structure
Pricing
Free Tier
Available
Open source — free to use
Starts at
$0
Model
Flat rate
Enterprise
None
Performance benchmarks
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Ecosystem
Relationships
Integrations
Next step
Get Started with Leakage
Step-by-step setup guide with code examples and common gotchas.