js-tokens vs Acorn
Side-by-side — pricing, strengths, tradeoffs, and fit.
js-tokens
Tiny JavaScript tokenizer for parsing and analyzing code.
Acorn
A small, fast ECMAScript parser for JavaScript.
At a glance
Open SourceFree Tier
● Established·From $0
Open SourceFree Tier
● Established·From N/A
Overview
One-liner
One-liner
Tiny JavaScript tokenizer for parsing and analyzing code.
One-liner
A small, fast ECMAScript parser for JavaScript.
Maturity
Maturity
EstablishedMaturity
EstablishedOpen source
Open source
✓ YesOpen source
✓ YesPricing
Free tier
Free tier
✓ AvailableOpen source — free to use
Free tier
✓ AvailableStarts at
Starts at
$0
Starts at
N/A
Model
Model
Flat rate
Model
Flat rate
Enterprise
Enterprise
✕ NoneEnterprise
✕ NoneBest for
✓ Best for
Developers who need a lightweight tokenizer for parsing JavaScript without the overhead of larger libraries.
Projects requiring minimal dependencies and fast performance in tokenizing JavaScript.
✓ Best for
Developers building JavaScript code editorsAcorn's speed and configurability make it ideal for real-time parsing.
Projects needing lightweight JavaScript parsingIts small size and no dependencies minimize overhead.
Not ideal for
✕ Not for
Complex code analysis tasks that require more sophisticated tools than a simple tokenizer can provide.
Scenarios where integration with a web UI or API is necessary, as js-tokens operates purely as a library.
✕ Not for
Applications requiring multi-language parsingAcorn is specialized for ECMAScript only.
Projects needing extensive error recoveryLacks built-in mechanisms for handling parsing errors robustly.
Strengths
↑ Strengths
Lightweight and fast JavaScript tokenizer
MIT licensed, open-source codebase
Easy to integrate into existing projects
↑ Strengths
Lightweight with no dependencies
High weekly downloads
Supports latest ECMAScript standards
Highly configurable
Weaknesses
↓ Weaknesses
Limited error handling for complex JavaScript syntax
Lack of comprehensive documentation and examples
No official support or active development team
Potential performance degradation with large codebases
↓ Weaknesses
Limited to JavaScript
Requires manual configuration for advanced use cases
No built-in error recovery