pieroxy/lz-string
Lz String
lz-string is a JavaScript library and command-line tool for compressing and decompressing string data using Lempel-Ziv algorithms. It provides utilities to reduce the size of strings and files to optimize storage and network bandwidth.
The project includes specialized encoders to ensure compressed data is compatible with different transport layers. These include options for Base64 encoding, UTF-16 string mapping for increased storage density, and URI-safe translation for use in web addresses.
The library supports client-side data compression for local storage optimization and provides a command-line interface for performing compression and decompression operations on files or standard input.
Features
- String Compression - Provides a utility for reducing the size of string data using an LZ-based algorithm to optimize storage.
- JavaScript - Reduces the size of text data in JavaScript to save storage space or reduce network bandwidth.
- LZ-Based String Compressors - Compresses and decompresses string data using Lempel-Ziv algorithms to save storage or bandwidth.
- Dictionary-Based Compression - Implements compression by replacing repeated substrings with references to a dictionary of previously encountered patterns.
- Sliding Window Matching - Uses a sliding window to identify the longest matching prefixes for efficient back-referencing during compression.
- Client-Side Compression - Allows data compression within the web browser to improve page load times and reduce transmission size.
- Browser-Based Compression Libraries - Implements LZ-based compression specifically for reducing string and file sizes within JavaScript environments.
- Compression and Decompression - Provides a utility for restoring compressed strings to their original form using a matching LZ-based algorithm.
- Browser Local - Shrinks string data before saving it to browser storage to bypass strict character limits and capacity constraints.
- Transport-Layer Encodings - Outputs compressed data as Base64, UTF-16, or URI-safe strings to ensure compatibility with different transport layers.
- CLI Compression Tools - Provides a command line interface for compressing and decompressing files or standard input.
- URI Encoding Utilities - Converts compressed data into formats that can be safely passed through URLs without breaking the request.
- File Compression and Decompression - Enables the compression and decompression of files via a terminal interface.
- URI-Safe Translations - Replaces reserved characters in compressed output to ensure strings remain valid when used in web addresses.
- UTF-16 Encodings - Encodes compressed bits directly into 16-bit Unicode characters to maximize storage density in JavaScript strings.
Star history
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