Dev tools · alternatives · 2026
24 alternatives to Kepler
Agentic development environment to run agents at scale
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier.
- 1
Build multi-agent systems with Google's open framework
2025 · adk.dev · its alternatives →
- 2
Instant recall for coding agents. Search the history already on your machine. Git blame, but for agent sessions.
Apr 2026 · ctx.rs · its alternatives →
- 3
Boxes.devfree tier, from $19/mo▲112Hi HN, we’re Nick and Drew, and we’re building boxes.dev – the first cloud-only agentic dev environment (ADE) that gives every Codex and Claude Code agent its own cloud computer. We’re two engineers who previously built Gem (co-founder/CTO and first hire), and we spent the last year coding almost exclusively using Codex and Claude Code. It’s been a huge change to how we code, and it’s been exhilarating seeing the models keep getting better – but we eventually realized that developing on localhost was holding us back: - Git worktrees are clunky to set up and use for parallelizing work -…
Jun 2026 · boxes.dev · its alternatives →
- 4
Contribute to corbt/agent.exe development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 5
Xcode 26.3▲319Leverage coding agents to tackle complex tasks autonomously
Feb 2026 · developer.apple.com · its alternatives →
- 6
- 7
Codex Subagents▲300Parallel custom agents for complex tasks
Mar 2026 · learn.chatgpt.com · its alternatives →
- 8
Tilde started from a simple observation: AI agents are only as useful as the environment they can work in. Giving an agent a prompt is easy. Giving it the right files, credentials, tools, context, and execution environment, safely and repeatably, is much harder. Over the past year, we learned a lot
May 2026 · tilde.run · its alternatives →
- 9
I'm Josh, founder of Synth. We've been working on coding agent optimization with method like GEPA and MIPRO (the latter of which, I helped to originally develop), agent evaluation via methods like RLMs, and large scale deployment for training and inference. We've also worked on patterns for memory, processing live context, and managing agent actions, combining it all in a single stack called Horizons. With the release of OpenAI's Frontier and the consumer excitement around OpenClaw, we think the timing is right to release a v0. It integrates with our sdk for evaluation and optimization but…
Feb 2026 · github.com · its alternatives →
- 10
Agentfield▲91Build & scale AI \ agents as microservices with IAM
Dec 2025 · agentfield.ai · its alternatives →
- 11
Hey HN! We’re Arne and Raban, the founders of Emdash (https://github.com/generalaction/emdash). Emdash is an open-source and provider-agnostic desktop app that lets you run multiple coding agents in parallel, each isolated in its own git worktree, either locally or over SSH on a remote machine. We call it an Agentic Development Environment (ADE). You can see a 1 minute demo here: https://youtu.be/X31nK-zlzKo We are building Emdash for ourselves. While working on a cap-table management application (think Stripe Atlas + Pulley), we found our development…
Feb 2026 · github.com · its alternatives →
- 12
Factory▲168Agent-native development on Web, IDE, CLI, Slack and mobile
2025 · factory.ai · its alternatives →
- 13
Open Agents▲161OpenAgents - The collaboration OS for AI agents. Contribute to openagents-org/openagents development by creating an account on GitHub.
Apr 2026 · open-agents.dev · its alternatives →
- 14
ADE▲99Use any coding subscription you already pay for, in one synced app that runs on web, desktop, terminal, and mobile. All your chats stay synced between all ade surfaces. Run agents from your laptop, continue the conversation from your phone at dinner, then later finish it off from another computer by simply using the web client. All subs, all in one place. Fully free and open source!
Jul 2026 · ade-app.dev · its alternatives →
- 15
I’ve been tinkering with what a “multi-agent IDE” should look like if your day-to-day workflow is mostly in terminal (Claude Code, OpenAI Codex, etc.). The more I played with it, the more it collapsed into three fundamentals: * A good TUI: Terminal is the center stage, with other stuff (CodeEdit, Diff, Review) baked on the side. I don’t like piping Agent’s output through some electron wrapper, here you get to run CC/Codex/Droid/Amp/etc directly. * Isolation: agents shouldn’t step on each other’s toes. The simplest primitive I’ve found is Git worktrees. It is not as…
Jan 2026 · agentastic.dev · its alternatives →
- 16
Google's platform to run AI agents at enterprise scale
Apr 2026 · cloud.google.com · its alternatives →
- 17
49agents IDE▲128An infinite 2D canvas where every AI coding agent, terminal, repo and machine you own lives side by side. Open source, self-hostable.
Sep 2026 · 49agents.com · its alternatives →
- 18
- 19
Subspace▲80All your Agents in one app and persistent context
Apr 2026 · subspace.build · its alternatives →
- 20
HiveTerm▲86A native workspace for Claude Code, Codex, Antigravity and Grok. Split panes on the desktop, routines in the agent
May 2026 · hiveterm.com · its alternatives →
- 21
Single-agent LLMs suck at long-running complex tasks. We’ve open-sourced a multi-agent orchestrator that we’ve been using to handle long-running LLM tasks. We found that single LLM agents tend to stall, loop, or generate non-compiling code, so we built a harness for agents to coordinate over shared context while work is in progress. How it works: 1. Orchestrator agent that manages task decomposition 2. Sub-agents for parallel work 3. Subscriptions to task state and progress 4. Real-time sharing of intermediate discoveries between agents We tested this on a Putnam-level math problem, but the…
Feb 2026 · github.com · its alternatives →
- 22
The agent development environment to ship faster
Apr 2026 · bridgemind.ai · its alternatives →
- 23
10x Scaling Without 10x the Work
2025 · archbee.com · its alternatives →
- 24
Also compare
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 →