xml2js vs fast-xml-parser

Side-by-side — pricing, strengths, tradeoffs, and fit.

xml2js

Convert XML to JavaScript objects for easy manipulation.

fast-xml-parser

Efficient XML parsing and validation library.

At a glance

Open SourceFree Tier
● Established·From $0
Open SourceFree Tier
● Established·From $0

Overview

One-liner

Convert XML to JavaScript objects for easy manipulation.

One-liner

Efficient XML parsing and validation library.

Maturity

Established

Maturity

Established

Open source

✓ Yes

Open source

✓ Yes

Pricing

Free tier

✓ Available

Open source — free to use

Free tier

✓ Available

Open source — free to use

Starts at

$0

Starts at

$0

Model

Flat rate

Model

Flat rate

Enterprise

✕ None

Enterprise

✕ None

Best for

✓ Best for

Developers working on projects that involve parsing and manipulating XML data within Node.js environments.
Teams needing to integrate XML data processing into their web applications without the overhead of manual parsing.

✓ Best for

Developers working with XML data who need fast and efficient parsing capabilities
Projects that require both synchronous and asynchronous XML handling
Applications needing flexible configuration options for custom parser behavior

Not ideal for

✕ Not for

Projects requiring real-time XML manipulation in a browser environment, as xml2js is primarily designed for server-side use.
Applications that require extremely high performance and low latency for XML processing.

✕ Not for

Scenarios where XML is not the primary data format being used
Real-time streaming applications requiring constant XML updates

Strengths

↑ Strengths

Converts XML to JavaScript objects for easy manipulation.
Supports asynchronous and synchronous parsing.
Allows customization of the parser behavior through options.

↑ Strengths

High-performance XML parsing and validation
Supports both synchronous and asynchronous operations
Flexible configuration options for customizing the parser behavior

Weaknesses

↓ Weaknesses

Steep learning curve for non-JavaScript developers
Limited documentation and examples
Performance issues with large XML files

↓ Weaknesses

Limited error handling and diagnostics
Poor documentation for advanced features
Performance degradation with complex XML structures
Full xml2js profile →Full fast-xml-parser profile →