Dev tools · alternatives · 2026
24 alternatives to Comprehensive inter-process communication (IPC) toolkit in modern C++
If you work in C++, and you would like 2+ programs to share data structures (and/or native I/O handles a.k.a. FDs) among each other, there is a good chance Flow-IPC - will make it considerably less annoying to code than typical approaches; and - may massively reduce the latency involved. Those sharing Cap'n Proto-encoded data may have particular interest. Cap'n Proto (https://capnproto.org) is fantastic at its core task - in-place serialization with zero-copy - and we wanted to make the IPC (inter-process communication) involving capnp-serialized messages be zero-copy,…
Flow-IPC is a C++ toolkit that enables multiple programs to share data structures and file descriptors with reduced latency and minimal code complexity. It supports zero-copy transmission of Cap'n Proto-encoded… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Comprehensive inter-process communication (IPC) toolkit in modern C++ launched in 2024; newer entries below may have overtaken it.
- 1
Inter-process C++ communication library to enable allocation managed between processes/threads and send/receive of allocated regions between producers/consumer processes or threads using this IPC buffer. (and yes it implements an M:N ring buffer too) - Usage · RaftLib/ipc Wiki
2021 · github.com · its alternatives →
- 2
Hello everyone, Today we released iceoryx2 v0.4! iceoryx2 is a service-based inter-process communication (IPC) library designed to make communication between processes as fast as possible - like Unix domain sockets or message queues, but orders of magnitude faster and easier to use. It also comes with advanced features such as circular buffers, history, event notifications, publish-subscribe messaging, and a decentralized architecture with no need for a broker. For example, if you're working in robotics and need to process frames from a camera across multiple processes, iceoryx2 makes it…
2024 · ekxide.io · its alternatives →
- 3CN
2013 · kentonv.github.com · its alternatives →
- 4IB
2015 · mappedbus.io · its alternatives →
- 5
Hi HN, To truly understand how operating systems and network protocols work, I decided to combine two classic learning tools: the xv6 teaching OS and a from-scratch TCP/IP stack. I'm excited to share the result: my own from-scratch TCP/IP networking stack running directly inside the xv6-riscv (https://github.com/pandax381/xv6-riscv-net) kernel. The project uses a modern virtio-net driver, allowing it to run seamlessly in QEMU and communicate with the host machine. Key features: - From-Scratch Stack: The core is powered by microps…
2025 · github.com · its alternatives →
- 6
Hi HN, I’m a recent CS graduate. During the past few months I wrote BinaryRPC, an open-source RPC framework in modern C++20 focused on low-latency, binary WebSocket messaging. Why I built it * Wanted first-class session support, pluggable QoS levels and a simple middleware chain (global, specific, multi handler) without extra JSON/XML parsing. * Easy developer experience A quick feature list * Binary WebSocket frames – minimal overhead * Built-in session layer (login / reconnect / heartbeat) * QoS1 / QoS2 with automatic ACK & retry * Plugin system – rooms, msgpack, etc.…
2025 · github.com · its alternatives →
- 7
CLI Native WebRTC Agent in Rust. Contribute to bitwhip/bitwhip development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 8
Flowkit 3.0▲296User flows right inside your favorite design tool
2019 · useflowkit.com · its alternatives →
- 9
Single header stackful cross-platform coroutine library in pure C. - edubart/minicoro
2021 · github.com · its alternatives →
- 10
Hi all, I have built Cimba, a multithreaded discrete event simulation library in C. Cimba uses POSIX pthread multithreading for parallel execution of multiple simulation trials, while coroutines provide concurrency inside each simulated trial universe. The simulated processes are based on asymmetric stackful coroutines with the context switching hand-coded in assembly. The stackful coroutines make it natural to express agentic behavior by conceptually placing oneself "inside" that process and describing what it does. A process can run in an infinite loop or just act as a one-shot customer…
Feb 2026 · github.com · its alternatives →
- 11FT
Hey HN! I’m Gabriel, and I’m excited to share a project I’ve been working on for the last few years. Flowcode is a visual programming platform that tries to combine the best of both worlds (code and visual). Over the years I found myself repeatedly drawing architectures and logic. It was always my dream to just press “run” instead of having to write them in code afterwards. But none of the visual tools I found were flexible and transparent enough for building real products. I think that visual programming fits perfectly with modern backend dev tasks that revolve around connecting different…
2025 · app.getflowcode.io · its alternatives →
- 12RR
I’m happy to announce the first release of Roc Toolkit, version 0.1.0! Roc provides a C API for real-time audio transport. The user just writes a stream to the one end and reads it from another end. Roc, in turn, performs encoding and decoding, and, more importantly, deals with the problems re
2019 · gavv.github.io · its alternatives →
- 13PP
2022 · pbkit.dev · its alternatives →
- 14
A simple way to write standalone C programs for i386 - luke8086/boot2c
2019 · github.com · its alternatives →
- 15
A significantly faster alternative to the classic Unix cp(1) command, copying large files and directories in a fraction of the time. - Svetlitski/fcp
2021 · github.com · its alternatives →
- 16
Stacksync▲68The first AI-native Enterprise Integration Platform.
Jan 2026 · stacksync.com · its alternatives →
- 17
Meta programming utilities for C++14. Merged in matt-42/lithium - matt-42/iod
2014 · github.com · its alternatives →
- 18
ProtoFlow▲80AI-powered PCB design tool for engineers and hardware teams
Jul 2026 · protoflow.ai · its alternatives →
- 19
Simple, easy to use stream computation library for C++.
2016 · raftlib.io · its alternatives →
- 20BA
2012 · flotype.com · its alternatives →
- 21
Last week Cloudflare released Cap'n Web [1], a schema-free capability-based RPC protocol. I built capn-rs this week - a Rust implementation with full wire protocol compatibility. Links: GitHub: https://github.com/currentspace/capn-rs Crates: https://crates.io/crates/capnweb-server API docs: https://docs.rs/capnweb-server What's working: Wire compatibility verified via integration tests against TypeScript reference Multi-transport: HTTP batch, WebSocket, WebTransport (HTTP/3) Complete IL (intermediate language) expression evaluator…
2025 · github.com · its alternatives →
- 22
tquic_client▲92A high-performance CLI to benchmark HTTP/3 servers
2024 · crates.io · its alternatives →
- 23
This project launches multiple independent programs into a single shared virtual address space, while still behaving like separate processes (independent binaries, globals, and lifetimes). When threadprocs share their address space, pointers are valid across them with no code changes for well-behaved Linux binaries. Unlike threads, each threadproc is a standalone and semi-isolated process. Unlike dlopen-based plugin systems, threadprocs run traditional executables with a `main()` function. Unlike POSIX processes, pointers remain valid across threadprocs because they share the same address…
Mar 2026 · github.com · its alternatives →
- 24
I have been pushing up to 90 commits a day on a MacBook Air via 4-5 parallel agents. As you can imagine when all the agents try to build, test and run dev servers on an 8GB machine it is the fast lane to a force quit and restart. I also did not want to pay the CI minutes on 90 pushes a day. So I designed a local merge queue to have all commits land one at a time and fully tested. Hopefully this helps other folks with more modest machines. Appreciate any feedback.
Jul 2026 · github.com · its alternatives →
Also compare
- C++ Multi-channel/-process/-thread, allocation & communication library alternatives
- Iceoryx2 – Fast IPC Library for Rust, C++, and C alternatives
- Cap'n Proto, by the ex-maintainer of Protocol Buffers alternatives
- IPC between multiple Java processes/JVMs with nanosecond latency alternatives
- I integrated my from-scratch TCP/IP stack into the xv6-riscv OS alternatives
- BinaryRPC – Lightweight WebSocket-based RPC framework in modern C++ 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 →