Topics / #interoperability

Interoperability projects on GitHub

Cross-chain and cross-system interoperability protocols and tools.

As of October 17, 2026, the most-starred Interoperability projects on GitHub are union (73.7K stars), swift (70.5K stars) and carbon-lang (33.9K stars). GitHub.Locker tracks 13 Interoperability repositories with 256.2K stars combined. The fastest-growing on October 16 was swift, with +9 stars in a day.

13Projects

256.2KStars in total

+28Stars in a day

Browse in the catalog →github.com/topics/interoperability ↗

Hot right now

Most stars gained in a day · Oct 16

swift

swiftlang/swift · ★ 70.5K

The source repository of Swift, a high-performance system programming language with clean, modern syntax, seamless access to existing C and Objective-C code, and memory safety by default.

carbon-lang

carbon-language/carbon-lang · ★ 33.9K

An experimental successor language to C++: C++-level performance, seamless interop with existing C++ code, and modern, safer foundations. This repo holds its documents, design, and toolchain implementation.

FreeRDP

FreeRDP/FreeRDP · ★ 13.8K

FreeRDP is a free, open-source implementation of Microsoft's Remote Desktop Protocol (RDP) — a C library plus ready-to-use client apps for connecting to remote desktops.

union

unionlabs/union · ★ 73.7K

Union is a zero-knowledge bridging protocol that lets you pass messages, transfer assets and NFTs, and use DeFi across Cosmos chains and EVM chains like Ethereum, without relying on oracles, multi-signatures, or trusted third parties.

The all-time top

13 projects · by stars

#1 · unionlabs/union
union
Union is a zero-knowledge bridging protocol that lets you pass messages, transfer assets and NFTs, and use DeFi across Cosmos chains and EVM chains like Ethereum, without relying on oracles, multi-signatures, or trusted third parties.
73.7K
#2 · swiftlang/swift
swift
The source repository of Swift, a high-performance system programming language with clean, modern syntax, seamless access to existing C and Objective-C code, and memory safety by default.
70.5K
#3 · carbon-language/carbon-lang
carbon-lang
An experimental successor language to C++: C++-level performance, seamless interop with existing C++ code, and modern, safer foundations. This repo holds its documents, design, and toolchain implementation.
33.9K

4
toml
20.6Ktoml-lang/toml
TOML (Tom's Obvious, Minimal Language) is a minimal configuration file format designed to be readable at a glance, with semantics obvious enough to map cleanly onto a hash table. This repository holds the in-development TOML specification itself.
5
arrow
17.2Kapache/arrow · C++
Apache Arrow is a universal columnar format plus a multi-language toolbox for fast data interchange and in-memory analytics — technologies that let data systems store, process, and move tabular data efficiently.
6
ivy
14.2Kunifyai/ivy · Python
Ivy is an open-source Python library that converts machine learning code between frameworks — you can transpile ML models, tools and libraries from one framework to another with ivy.transpile.
7
FreeRDP
13.8KFreeRDP/FreeRDP · C
FreeRDP is a free, open-source implementation of Microsoft's Remote Desktop Protocol (RDP) — a C library plus ready-to-use client apps for connecting to remote desktops.
8
container
10Kphp-fig/container · PHP
The official PHP-FIG repository of interfaces for PSR-11, the Container Interface standard. It defines the abstractions that describe the components of a Dependency Injection Container.
9
PythonCall.jl
1.1KJuliaPy/PythonCall.jl · Julia
PythonCall.jl (with its Python-side counterpart JuliaCall) lets you call Python code from Julia and Julia code from Python through a symmetric interface, converting objects between the two languages.
10
interop
528web-platform-tests/interop · JavaScript
An ongoing effort by browser makers to make the web more interoperable: each year they pick key focus areas and publicly score how well browsers implement them. It is part of the web-platform-tests project.
11
morloc
219morloc-project/morloc · Rust
Morloc is a strongly-typed, polyglot compiler: it composes functions written in different languages under one common type system and turns each module into a CLI, an API and an MCP server.
12
pi2dsh
217weijiafu14/pi2dsh · TypeScript
pi2dsh is a compatibility layer that runs Pi ecosystem plugins on DeepSeek Harness (DSH) unmodified — no fork, no patch, no per-package adapter. It implements Pi's public extension ABI on top of DSH's native services, so a Pi package installs and works on DSH exactly as published.
13
txcript
179skillsynchq/txcript · Rust
txcript converts AI coding agent sessions between formats — you can start a conversation in Claude Code and continue it in Codex or Cursor, carrying messages, reasoning, and tool history where the target supports them.