pretty-bytes
Convert bytes to human-readable strings easily.
Pricing
Free tier
Flat rate
Adoption
↘CoolingLicense
Open Source
Data freshness
Aging · Jun 8, 2026Overview
What is pretty-bytes?
Pretty Bytes is a JavaScript library that converts byte values into human-readable string representations. It's useful for developers who need to display file sizes or data usage in a user-friendly format.
Key differentiator
“Pretty Bytes stands out as a lightweight, easy-to-use library for converting byte values into human-readable strings, making it an ideal choice for developers looking to enhance the user experience with clear and concise size representations.”
Capability profile
Capability Radar
Honest assessment
Strengths & Weaknesses
↑ Strengths
↓ Weaknesses
pretty-bytes only converts bytes to human-readable strings and does not support additional formatting options or localization.
The project has a small number of contributors and infrequent updates, which may lead to slower issue resolution and feature development.
pretty-bytes uses decimal units (kB, MB, GB) by default, which can be misleading in contexts where binary prefixes are more appropriate.
The project's documentation is minimal and lacks detailed usage scenarios or advanced configuration options.
Fit analysis
Who is it for?
✓ Best for
Developers who need to display byte values in a human-readable format within web applications or command-line tools.
Projects that require consistent formatting of file sizes across different platforms.
✕ Not a fit for
Applications requiring complex data conversion beyond bytes
Use cases where manual formatting is preferred over automated solutions
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 pretty-bytes
Step-by-step setup guide with code examples and common gotchas.