pieroxy/lz-string

Health v2 · maintenance only

Adoption not part of the score

4429 stars · 568 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A JavaScript/TypeScript library implementing an LZ-based compression algorithm optimized for strings, with multiple output encodings (UTF16, base64, URI-safe, Uint8Array). It also ships a CLI for compressing and decompressing files and has ports to many other languages.

Use cases

• compress large strings before storing them in localStorage
• shrink JSON payloads sent from client to server
• compress data into URL-safe strings
• compress files from the command line
• decompress data produced by lz-string ports in other languages

When to choose

• you need fast, dependency-free string compression in JavaScript or the browser
• you want to compress data for localStorage, URLs, or small payloads
• you need a simple CLI for lz-string compression

When to avoid

• you need maximum compression ratios on large binary files (use gzip, zstd, or brotli)
• you need cross-language compatibility without verifying port behavior
• you are compressing data where a standard format is required

Facets

library · maturity stable

compression serialization cli developer-tools files web-development browser cli cross-platform lz-compression string-compression javascript typescript nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="pieroxy/lz-string")