Life & fun · alternatives · 2026
24 alternatives to Lock-free concurrent maps for Golang
Package lfmap provides generic concurrent lock-free map implementation, using immutable map and atomic swaps.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Lock-free concurrent maps for Golang launched in 2024; newer entries below may have overtaken it.
- 1
Hey HN, this is Will and David from Fortress (https://news.ycombinator.com/item?id=41426998). We use a lot of async Rust internally, and created this library out of a need for an async-aware concurrent hashmap since there weren’t many available in the Rust ecosystem. Whirlwind is a sharded HashMap with a fully asynchronous API. Just as dashmap is a replacement for std::sync::RwLock, whirlwind aims to be a replacement for tokio::sync::RwLock. It has a similar design and performance characteristics to dashmap, but seems to perform better in read-heavy workloads with tokio's…
2024 · github.com · its alternatives →
- 2
A pure C (-std=c89) implementation of Go channels, including blocking and non-blocking selects. - GitHub - rochus-keller/CspChan: A pure C (-std=c89) implementation of Go channels, including blocking and non-blocking selects.
2023 · github.com · its alternatives →
- 3
I just released the new version 0.4.0 which introduces a concurrent and a non-concurrent version of both lists.
2025 · github.com · its alternatives →
- 4
A concurrent thread-safe hash map implemented in C++ - kshk123/hashMap
2017 · github.com · its alternatives →
- 5
A Go library that implements Consistent Hashing and Consistent Hashing With Bounded Loads. - lafikl/consistent
2017 · github.com · its alternatives →
- 6
A single publisher, multi subscriber lockless ring buffer build with the new generics in Go 1.18beta.
2022 · github.com · its alternatives →
- 7
Pure C implementation of Go channels. Contribute to tylertreat/chan development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 8
Distributed Time Synchronization Service. Contribute to rubrikinc/kronos development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 9
📶 A lock- and wait-free hashtable (and an array too) - mulle-concurrent/mulle-concurrent
2016 · github.com · its alternatives →
- 10
Long-simmering side project that is finally ready to see the light. HAMTs are a cool persistent data structure and implementing one has been a lot of fun. Beyond the code, there is likely some value in the extensive and largely complete implementation docs; basic benchmarks are linked in the README, too. Kind of aiming to be "the libavl for HAMTs". That is obviously a high and aspirational bar but a distinct possibility if it stirs up a little interest and/or contribution. Anyways, it's time for this to go out, collect feedback and maybe even some use outside of toy projects. Let me…
2023 · github.com · its alternatives →
- 11
This project presents a new data structure for storing ordered integer maps. The proposed data structure is a compressive, cache-friendly, radix tree that has performance comparable to an unordered map (`std::unordered_map`) and is an order of magnitude faster than an ordered map (`std::map`).
2024 · github.com · its alternatives →
- 12
Go-like DSL for C#. Contribute to kpocza/GoSharp development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 13
Hey HN, I’m sharing ts-chan, an NPM package providing Go-like concurrency primitives, including channels and select statements, for TypeScript and JavaScript, supporting Node.js, Deno, Bun, and browsers. This is something I've built to make implementing Go-style "control loops" feasible in JavaScript, but there are many possible applications. Highlights: - Features a FIFO processing Chan class and versatile Select class for concurrency control. - Supports buffered channel and channel close semantics very close to Go's. - TypeScript-first implementation. - Defines a simple "channel protocol"…
2023 · github.com · its alternatives →
- 14
Hey HN! Roughly 4 years ago I started building a lazy functional iteration library for JS/TS. I had a few goals for the library: - Supporting sync, sequential async, and concurrent async iteration - Limiting it to a small number of orthogonal concepts that compose beautifully to solve problems - Making it fully tree-shakeable I built it for myself and have (mostly) been its only user as I refined it. I've used it in lots of personal projects and really enjoyed it. I recently decided it would be nice to spread that enjoyment so I created a documentation website complete with a playground…
2024 · lfi.dev · its alternatives →
- 15
LRU cache using go generics. Contribute to dboslee/lru development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 16
A finite-state machine library for the Go programming language - calebwin/go-sm
2018 · github.com · its alternatives →
- 17
A header only C++11 LRU Cache template class that allows you to define key, value and optionally the Map type. uses a double linked list and a std::unordered_map style container to provide fast insert, delete and update No dependencies other than the C++ standard library. This is a C++11 remake of m
2016 · github.com · its alternatives →
- 18
Real Goroutines for Python 3.13t+ free-threaded. Contribute to robertsdotpm/runloom development by creating an account on GitHub.
Jul 2026 · github.com · its alternatives →
- 19
Meta programming utilities for C++14. Merged in matt-42/lithium - matt-42/iod
2014 · github.com · its alternatives →
- 20
Offline-first SQL sync with Typescript and Rust cores - syncular/syncular
Aug 2026 · github.com · its alternatives →
- 21
A data aware UI components library for building realtime maps - reactivemaps/README.md at master · appbaseio/reactivemaps
2017 · github.com · its alternatives →
- 22
Lock-free interface and function mocks for Go. Contribute to moqueries/cli development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 23
C++14: bringing in those expressions that you wish you had, Lazily evaluated, compossible generators, maps, filters, ranges and more... - GitHub - SaadAttieh/lazyCode: C++14: bringing in those expressions that you wish you had, Lazily evaluated, compossible generators, maps, filters, ranges and more
2018 · github.com · its alternatives →
- 24LS
Hi guys, creator of lockable here - the easiest way to think of lockable is as `flock` for when you don’t have a shared file system. You can use it to control concurrent access to resources or to ensure only a single instance of a process runs at any given time. Your processes can acquire, refresh and release locks via simple HTTP requests, so it’s language/framework agnostic. E.g. with `curl`: $ curl https://lockable.dev/api/acquire/my-lock-name { "response": true //or false, if the lock wasn’t available } $ curl…
2022 · lockable.dev · its alternatives →
Also compare
- Whirlwind – Async concurrent hashmap for Rust alternatives
- A pure C89 implementation of Go channels, with blocking selects alternatives
- Multi-/BiKeyMap (Go Module) alternatives
- A concurrent thread-safe hash map implemented in C++ alternatives
- A Golang Package for Consistent Hashing with Bounded Loads alternatives
- Lockless Ringbuffer Built with Go Generics alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →