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coregx

High-Performance Go Libraries — Regex, SQL, HTTP, Messaging. Zero CGO.
README.md

coregx

High-Performance Go Libraries
Production-grade. Zero CGO. Minimal dependencies.

Go Version License Zero CGO

Ecosystem

Text Processing

Library Description Version Stars Issues PRs
coregex Regex engine, 3-3000x faster, SIMD
ahocorasick Aho-Corasick multi-pattern matching

Web & HTTP

Library Description Version Stars Issues PRs
fursy HTTP router, type-safe, OpenAPI gen
stream SSE & WebSocket, RFC-compliant

Data & Messaging

Library Description Version Stars Issues PRs
opt Optional types for Go — SQL+JSON nullable, PATCH API
relica Type-safe SQL query builder
pubsub Pub/Sub with DLQ, backoff

Reactive

Library Description Version Stars Issues PRs
signals Reactive state, Angular-inspired

Documents

Library Description Version Stars Issues PRs
gxpdf Pure Go PDF generation & manipulation

Highlights

coregex — 3-3000x Faster Regex

Cross-language benchmarks on 6MB input, AMD EPYC (source, full table in the coregex README):

Pattern Go stdlib coregex Rust regex vs stdlib
Inner .*keyword.* 232 ms 0.26 ms 13.6 ms 893x
IP address 489 ms 0.77 ms 13.5 ms 635x
Email validation 257 ms 0.55 ms 0.26 ms 467x
Suffix .*\.txt 236 ms 1.79 ms 13.7 ms 132x

Faster than Rust regex on 6 of 12 patterns, e.g. inner literals (52x), IP addresses (17.6x), suffixes (7.7x). 16 search strategies, SIMD prefilters, O(n) guaranteed — no backtracking, no ReDoS.

relica — Type-Safe SQL

var users []User
err := db.Select("id", "name").
    From("users").
    Where(relica.And(
        relica.Eq("status", "active"),
        relica.GreaterThan("age", 18),
    )).
    OrderBy("created_at DESC").
    Limit(10).
    WithContext(ctx).
    All(&users)

Advanced features: JOINs, subqueries, CTEs, window functions. Batch INSERT 3.3x faster than individual inserts.

fursy — Modern HTTP Router

router := fursy.New()

// Plain handler, path parameter
router.Handle("GET", "/users/:id", func(c *fursy.Context) error {
    return c.OK(map[string]string{"id": c.Param("id")})
})

// Type-safe handler: request body bound (and validated), response typed
router.POST("/users", func(c *fursy.Box[CreateUserRequest, UserResponse]) error {
    user := createUser(c.ReqBody)
    return c.Created("/users/"+user.ID, user)
})

Built-in OpenAPI 3.1 generation, RFC 9457 errors, pluggable validation, minimal dependencies.

Philosophy

  • Zero CGO — Simple go build, no C compiler needed
  • Minimal Dependencies — Only what's absolutely necessary
  • Production-Grade — Battle-tested, well-documented, maintained
  • Modern Go — Generics where useful; each library states its minimum Go version in its go.mod

Powered by coregx

Project Description Using
uawk Ultra AWK interpreter, faster than GoAWK on all 16 benchmarks, parallel file processing coregex

Contributing

We welcome contributions! See individual repository CONTRIBUTING.md files.

Areas where we need help:

  • Real-world testing and bug reports
  • Documentation and examples
  • Performance optimization ideas

License

All projects are licensed under the MIT License.

Production-grade Go libraries for demanding applications
github.com/coregx

Pinned Loading

  1. coregex coregex Public

    Pure Go production-grade regex engine with SIMD optimizations. Up to 3-3000x+ faster than stdlib.

    Go 302 9

Repositories

Showing 10 of 10 repositories
  • coregex Public

    Pure Go production-grade regex engine with SIMD optimizations. Up to 3-3000x+ faster than stdlib.

    coregx/coregex's past year of commit activity
    Go 302 MIT 9 14 2 Updated Oct 27, 2026
  • .github Public

    Organization profile and assets

    coregx/.github's past year of commit activity
    0 0 0 0 Updated Oct 27, 2026
  • relica Public

    Lightweight, type-safe database query builder for Go with zero production dependencies. JOINs, subqueries, CTEs, batch operations, LRU statement cache. PostgreSQL, MySQL, SQLite.

    coregx/relica's past year of commit activity
    Go 28 MIT 0 0 0 Updated Oct 27, 2026
  • gxpdf Public

    GxPDF - Enterprise-grade PDF library for Go. Table extraction, text parsing, encryption, document creation.

    coregx/gxpdf's past year of commit activity
    Go 54 MIT 9 3 0 Updated Oct 22, 2026
  • fursy Public

    Next-generation HTTP router for Go 1.27+ with type-safe handlers, RFC 9457 errors, and built-in OpenAPI generation. Minimal dependencies, blazing performance.

    coregx/fursy's past year of commit activity
    Go 14 MIT 2 0 0 Updated Oct 9, 2026
  • stream Public

    Production-ready Server-Sent Events (SSE) and WebSocket for Go 1.27+ | RFC-compliant | Zero dependencies | 84% test coverage

    coregx/stream's past year of commit activity
    Go 10 MIT 0 0 0 Updated Oct 8, 2026
  • ahocorasick Public

    High-performance Aho-Corasick multi-pattern string matching for Go

    coregx/ahocorasick's past year of commit activity
    Go 32 MIT 4 0 0 Updated Sep 6, 2026
  • signals Public

    Type-safe reactive state management for Go, inspired by Angular Signals. Zero allocations, thread-safe, production-ready.

    coregx/signals's past year of commit activity
    Go 22 MIT 0 0 0 Updated Aug 25, 2026
  • pubsub Public

    Production-ready Pub/Sub library and standalone service for Go. Reliable messaging, DLQ, exponential backoff, clean architecture.

    coregx/pubsub's past year of commit activity
    Go 6 MIT 0 0 0 Updated Aug 25, 2026
  • opt Public

    Optional types for Go — generic-first SQL+JSON nullable types with three-state PATCH support

    coregx/opt's past year of commit activity
    Go 5 MIT 0 0 0 Updated Aug 25, 2026

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