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Top 23 String Open-Source Projects
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StringZilla
Up to 100x faster strings for C, C++, CUDA, Python, Rust, Swift, JS, & Go, leveraging NEON, AVX2, AVX-512, SVE, GPGPU, & SWAR to accelerate search, hashing, sorting, edit distances, sketches, and memory ops 🦖
Usearch (Smaller & Faster Single-File Similarity Search & Clustering Engine for Vectors & 🔜 Texts): https://github.com/unum-cloud/usearch
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goutil
💪 Helper Utils(900+): int, byte, string, array/slice, map, struct, dump, convert/format, error, web/http, cli/flag, OS/ENV, filesystem, system, test/assert, time and more. Go 常用的工具函数：数字，字符串，数组，Map，结构体，反射，文本，文件，错误，时间日期，特殊处理，格式化，常用信息获取等等
Project mention: gookit/goutil v0.7.2 Released: Enhanced Features & Fixes for an Improved Development Experience | dev.to | 2025-11-20Full documentation: https://zread.ai/gookit/goutil
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string
Provides an object-oriented API to strings and deals with bytes, UTF-8 code points and grapheme clusters in a unified way (by symfony)
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Project mention: Memchr: Optimized string search routines for Rust | news.ycombinator.com | 2025-11-19
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Obfuscate
Guaranteed compile-time string literal obfuscation header-only library for C++14 (by adamyaxley)
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mlib
Library of generic and type safe containers in pure C language (C99 or C11) for a wide collection of container (comparable to the C++ STL).
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python-string-similarity
A library implementing different string similarity and distance measures using Python.
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lyricist
🌎 The missing I18N/L10N (internationalization/localization) multiplatform library for Compose Multiplatform!
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url-pattern
easier than regex string matching patterns for urls and other strings. turn strings into data or data into strings.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
String discussion
String related posts
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Beyond fmt: Building a Flexible Text Builder in Go with Wissance/stringFormatter
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Memchr: Optimized string search routines for Rust
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Mudderjs: Lexicographically subdivide the space between strings
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StringZilla 4.2: Arm NEON+SHA and Goldmont support
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Processing Strings 109x Faster Than Nvidia on H100
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Processing Strings 109x Faster Than Nvidia on H100
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Processing Strings 109x Faster Than Nvidia on H100
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A note from our sponsor - SaaSHub
www.saashub.com | 11 Jun 2026
Index
What are some of the best open-source String projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | javascript-obfuscator | 16,091 |
| 2 | query-string | 6,906 |
| 3 | URI.js | 6,232 |
| 4 | he | 3,663 |
| 5 | voca | 3,593 |
| 6 | StringZilla | 3,490 |
| 7 | underscore.string | 3,364 |
| 8 | goutil | 2,350 |
| 9 | sprintf.js | 2,138 |
| 10 | string.js | 1,803 |
| 11 | string | 1,786 |
| 12 | rust-memchr | 1,467 |
| 13 | xorstr | 1,419 |
| 14 | sttr | 1,323 |
| 15 | Obfuscate | 1,303 |
| 16 | mlib | 1,126 |
| 17 | python-string-similarity | 1,018 |
| 18 | compact_str | 840 |
| 19 | lyricist | 809 |
| 20 | url-pattern | 588 |
| 21 | jsurl | 580 |
| 22 | Portable ASCII | 574 |
| 23 | zig-string | 561 |
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