AI · alternatives · 2026
24 alternatives to Neptune, a free and open-source terminal built in Rust
A free, open-source terminal built in Rust, with workspaces, split panes, and tools for working with AI coding agents. - zevem/neptune
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Hi HN community, I’m Zach, founder and CEO of Warp, and am excited to show you Warp, a fast Rust-based terminal that’s easy to use and built for teams. As of today, Warp is in public beta and any Mac user can download it. It works with bash, zsh, and fish. The terminal’s teletype-like interface has made it hard for the CLI to thrive. After 20 years of programming, I still find it hard to copy a command’s output; I always forget how to use `tar`; and I always have to relearn how to move my cursor. To fix fundamental accessibility issues, I believe we need to start innovating on the terminal,…
2022 · warp.dev · its alternatives →
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Hi HN, I've been building Nucleus, a lightweight Linux container runtime focused on two workloads: ephemeral AI-agent sandboxes and declarative NixOS services. It's a single Rust binary, no daemon. It is not a Docker replacement and not a strict subset of Docker either. I dropped the entire image-and-distribution half (no Dockerfile, no layers, no registry, no pull/push, no persistent storage layer) in exchange for going deeper on isolation and reproducibility. The rootfs is either a directory copied into tmpfs (agent mode) or a Nix-built closure mounted read-only (production mode). If…
Jun 2026 · github.com · its alternatives →
- 4FA
I built Fresh to challenge the status quo that terminal editing must require a steep learning curve or endless configuration. My goal was to create a fast, resource-efficient TUI editor with the usability and features of a modern GUI editor (like a command palette, mouse support, and LSP integration). Core Philosophy: - Ease-of-Use: Fundamentally non-modal. Prioritizes standard keybindings and a minimal learning curve. - Efficiency: Uses a lazy-loading piece tree to avoid loading huge files into RAM - reads only what's needed for user interactions. Coded in Rust. - Extensibility: Uses…
Dec 2025 · sinelaw.github.io · its alternatives →
- 5
Hi HN, We are the team behind Shuttle (YC S20). We just shipped Neptune, (https://github.com/shuttle-hq/neptune-mcp) an open source MCP server that lets coding agents actually deploy software, not just write code. Behind it is an app deployment platform we built to be friendly for AI agents. Neptune runs in your IDE. It reads your codebase, analyzes its structure and intent using ASTs and inference, and generates a deterministic infrastructure spec called neptune.json. You can inspect every change, approve it, and apply it. Think: coding agents that can actually ship…
Dec 2025 · github.com · its alternatives →
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A free-range, non-GMO fork of busybox in 100% Rust 🦀 - samuela/rustybox
2019 · github.com · its alternatives →
- 8
A terminal-based text editor written in Rust. Contribute to gchp/iota development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 9RS
Link to project: https://github.com/iondodon/manter Demo: https://youtu.be/ZjAXMMMoKGg This project aims to create a terminal with functionalities that improve the experience of using terminals. Examples of useful functionalities would be autocomplete suggestion, showing the current branch of a project, prepared scripts that can be reused, and others. You can come up with your ideas. The project uses technologies such as Svelte on the front-end, which offers flexibility regarding the implementation of the interface. On the back-end side, the most important…
2023 · its alternatives →
- 10
We built OneCLI because AI agents are being given raw API keys. And it's going about as well as you'd expect. We figured the answer isn't "don't give agents access," it's "give them access without giving them secrets." OneCLI is an open-source gateway that sits between your AI agents and the services they call. You store your real credentials once in OneCLI's encrypted vault, and give your agents placeholder keys. When an agent makes an HTTP call through the proxy, OneCLI matches the request by host/path, verifies the agent should have access, swaps the placeholder for the real…
Mar 2026 · github.com · its alternatives →
- 11
I've been working on Shelgon, a framework that lets you build your own custom REPL shells and interactive CLI applications in Rust. You can use Shelgon to: - Create a custom shell with only a few lines of code - Build interactive debugging tools with persistent state between commands - Develop domain-specific language interpreters with shell-like interfaces - Add REPL capabilities to existing applications Getting started is straightforward - implement a single trait that handles your command execution logic, and Shelgon takes care of the terminal UI, input handling, and async runtime…
2025 · github.com · its alternatives →
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Windows Terminal with native agent integration
Jun 2026 · github.com · its alternatives →
- 13
APX Terminal▲99Encrypted terminal and SSH client with built‑in AI assistant
Jan 2026 · apxterminal.com · its alternatives →
- 14
Tabs, splits, and tmux work fine until you have several projects open with logs, tests, and long-running shells. I kept rebuilding context instead of resuming work. Horizon puts shells on an infinite canvas. You can arrange them into workspaces and reopen later with layout, scrollback, and history intact. Built in 3 days with Claude/Codex, dogfooding the workflow as I went. Feedback and contributions welcome.
Mar 2026 · github.com · its alternatives →
- 15LA
About a game I made under direction of my kids. Tagged with rust, opensource, showdev, terminal.
2020 · dev.to · its alternatives →
- 16
https://github.com/iondodon/manter
2022 · github.com · its alternatives →
- 17
Save 89% of wasted tokens on your AI coding agent
Mar 2026 · rtk-ai.app · its alternatives →
- 18GA
I built GRSH because I wanted a modern, memory-safe shell that feels native to FreeBSD but works seamlessly on macOS. While there are many shells out there, GRSH is my take on a minimal, fast, and secure command interpreter written entirely in Rust. It's designed for users who want the safety guarantees of Rust without the overhead of more bloated alternatives. I'm currently working on the official FreeBSD port. I’d love to get feedback on the shell's behavior and performance from the community. Github: https://github.com/antoniomalara301289/grsh
Jan 2026 · grimreaper.icu · its alternatives →
- 19TJ
Hi HN, I built Titan, a backend framework where you write routes and logic in JavaScript, and the CLI compiles everything into a single Rust + Axum binary using the Boa JS engine. No Node.js is required in production. The idea is to keep JS developer experience while getting Rust performance and a self-contained deployable server. Current features: JS route DSL Action system mapped to Rust esbuild bundling Generated Rust server with Axum Hot-reload dev server Single-binary output Repo: https://github.com/ezet-galaxy/-ezetgalaxy-titan Would love feedback on the…
Dec 2025 · npmjs.com · its alternatives →
- 20
Open-source agentic terminal. Finds the agent sessions already on your machine, keeps them alive after you close the app, and lets you reach them from a browser. Native Rust rendering, PTY daemon, no inbound port. - hydraterm/hydra-local
Sep 2026 · github.com · its alternatives →
- 21
Aspiring vim-like text editor. Contribute to mathall/rim development by creating an account on GitHub.
2015 · github.com · its alternatives →
- 22
A terminal-only version of Sumo written in Go. Contribute to SumoLogic/sumoshell development by creating an account on GitHub.
2015 · github.com · its alternatives →
- 23
I made a Terminal UI for OpenSnitch[1], an interactive application firewall for Linux inspired by Little Snitch. I’ve always wanted to create a TUI and found the perfect excuse to make this for usage on one of my headless servers. I wrote this in Rust to force myself to learn more, viz. async features. Super open to feedback and contributions! [1] https://github.com/evilsocket/opensnitch
Nov 2025 · github.com · its alternatives →
- 24
Introducing Sphere - A lightweight, sandboxed compute runtime written in Rust. - introducing-sphere.md
2025 · gist.github.com · its alternatives →
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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 →