Leakage

Write memory leak tests for your JavaScript applications.

DecliningOpen SourceLow lock-in

Pricing

Free tier

Flat rate

Adoption

Cooling

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

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

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Automated memory leak detection in JavaScript applicationsmedium

Integration with popular testing frameworks like Jest and Mochamedium

Detailed reports on detected leaksmedium

↓ Weaknesses

Limited support for non-JavaScript environmentshigh

Leakage is primarily designed for JavaScript applications and may not work seamlessly in other runtime environments or with compiled languages.

Complex setup processmedium

Integrating Leakage into existing projects requires significant configuration, including setting up test frameworks and modifying application code to enable leak detection.

Performance overhead during testshigh

Running memory leak tests with Leakage can introduce noticeable performance slowdowns, especially in large-scale applications where extensive testing is required.

Sparse community and support resourcesmedium

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

How Fast Is It?

Ecosystem

Relationships

Next step

Get Started with Leakage

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →