proper-lockfile
Inter-process and inter-machine lockfile utility for Node.js.
Pricing
Free tier
Flat rate
Adoption
↘CoolingLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is proper-lockfile?
Proper-lockfile is a robust lockfile utility designed to ensure consistent file access across multiple processes or machines, making it essential for distributed systems and concurrent operations in Node.js environments.
Key differentiator
“Proper-lockfile stands out as a lightweight, yet powerful utility specifically designed for Node.js developers to manage concurrent operations and ensure data consistency across processes and machines.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
Proper-lockfile is primarily designed for Node.js environments, limiting its utility in other programming languages.
Integrating proper-lockfile into existing projects requires significant configuration and may disrupt current workflows.
The robustness of proper-lockfile introduces additional processing time, which might be noticeable in less demanding or smaller scale applications.
Fit analysis
Who is it for?
✓ Best for
Developers working on Node.js projects that require managing concurrent access to shared resources.
Teams building distributed systems where consistency and reliability are critical.
Projects needing a robust solution for preventing race conditions in file operations.
✕ Not a fit for
Applications that do not involve multi-process or distributed environments.
Scenarios where the overhead of lockfile management is undesirable.
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
Integrations
Next step
Get Started with proper-lockfile
Step-by-step setup guide with code examples and common gotchas.