splash

SplashCompareAtlas

Splash and Atlas, compared.

Splash and Atlas are desktop apps that run coding agents over the Agent Client Protocol. Atlas, in alpha, adds a built-in agent, can record agent sessions and link them to the commits they produced, and shares them with a team through a synced organization. Splash has no accounts and can give each session its own git worktree.

Checked 10 October 202648 sourcesNot affiliated with Atlas

Splash

Helge Sverre

A desktop app for running several coding agents at once, each session in its project folder or its own git worktree. It drives agents over the Agent Client Protocol.12

splash.computer

Atlas

Atlas

An alpha desktop app that drives Claude Code, Codex and other ACP registry agents plus its own Atlas Agent, ties recorded sessions to the commits they produced, and shares them with a team.3456

tryatlas.cc

Side by side

SplashAtlas
The basics
What it is Desktop app, plus a headless server you open in a browser17 Desktop app for coding agents that can record sessions and link them to commits; a team web app runs no agents859
Release status v0.2.1, early development110 Alpha: v0.3.4 (‘Atlas Teams Early’, 27 September 2026), with releases since May 2026; 0.4.0 is in development31112
License Open source (MIT)13 Open source (Apache 2.0); Atlas Agent is a hard fork of openai/codex that doesn’t follow upstream14415
Price Free16 Free during the alpha with your own keys; Atlas Agent use is billed to your organization under a plan Atlas grants, with no published prices31718
Platforms macOS 14+ (Apple silicon and Intel), Windows 11 x64, Ubuntu 24.04 x6419 macOS 13+ on Apple silicon and Intel (install docs say 11+), Windows 10+ x64; Linux x86-64 packages the README calls untested3204
Built with Rust, with a Svelte 5 frontend in a webview, built on the Elyra framework21 Tauri v2: a React 19 frontend and a Rust backend that runs agent sessions and the terminal8
Agents
Agents Ships launch commands for 20 agents, including Claude Code, Codex, Copilot, Gemini, Goose, OpenCode2223 Built-in Atlas Agent; Claude Code, Codex, Cursor, OpenCode, Kilo Code and other ACP registry agents with an npx or binary build342425
How it runs agents Agent Client Protocol over stdio, natively or through a pinned adapter for the vendor’s CLI222 External agents as ACP subprocesses over piped stdio; Atlas Agent runs in process on a hard fork of Codex42615
Agent sign-in Who pays for the model You install and sign in to each agent’s CLI yourself; Splash runs it with that login23 External agents use your own subscriptions or API keys; Atlas Agent uses your Atlas account, with usage billed to your organization172718
Account required Splash has no accounts; splash-server asks for a token it keeps in its data folder287 Not for local use; Google or GitHub sign-in unlocks Atlas Agent, team features, Cloud capture and the web app295
Permission requests When an agent asks before it acts Yes: Shown in the transcript and answered with the 1–9 keys; pending ones wait in Needs attention30 Yes: Chat shows each agent’s own permission choices; Atlas Agent has Ask, Accept edits, Plan and Bypass modes, sandboxed except Bypass3118
Skills and MCP servers Partly: Settings shows each agent’s skills and MCP servers, read-only3032 Yes: Links global or per-project skills into Atlas Agent, Claude Code and Codex and installs packs from skills.sh; offers agents its own memory server over MCP3334
Working in parallel
Isolation per session Yes: The project folder, or a git worktree on its own branch per session30 No: None documented: all agents share the open project folder. Per-run working copies come with Shared threads, in progress535
Terminal Yes: A terminal in the session folder30 Yes: Block terminal pairing each command with its output, exit status and duration, in tabs and split panes; blocks need zsh364
What needs you Yes: One queue for permission requests, connection failures and finished turns, kept across restarts3037 Partly: The homepage describes a cross-session Inbox of permission prompts and finished streams that the docs don’t cover; notifications are unreleased 0.4.0312
Agents handing off work Passing context or work between agents No: Each session is one agent in one folder; sessions don’t hand work to each other130 Partly: Agents with HTTP MCP support share an on-device memory per repository; handing a chat to another agent is unreleased 0.4.038342412
Team collaboration Several people on one project No: splash-server is a personal, single-user service, not a multi-user deployment7 Yes: With a synced organization: a shared session timeline, comments, team chat, calls and Cloud capture529
Built-in browser No: No built-in browser; the workbench holds git changes, a file tree, diff and file tabs, and a terminal30 Yes: A browser tab in a native webview that keeps logins and cookies, with a reader mode43
Review and shipping
Review changes Yes: Latest response, failed tools and every changed file as a diff, with a box to send feedback30 Yes: Each turn lists changed files and opens its diff; Atlas Agent has /review. Line comments come with Shared threads, in progress311835
Sessions linked to commits Which agent session produced a commit No: No commit links; a session keeps its transcript, and archiving a worktree session keeps its splash/… branch30 Yes: With capture on, commits made in any tool are tied to the agent sessions behind them; links follow rebases, and a squash orphans them639
Files and diffs Partly: File tree, git changes and diff tabs; files open read-only, with no editor3040 Yes: An editor with tabs and splits that also shows PDFs, images and media; inline or side-by-side diffs4139
Create pull requests No: Shows the PR for a session’s branch and starts worktrees from PR heads; does not create PRs3042 No: Never opens PRs or pushes by itself; you stage, commit, push and publish branches from its git panel4339
GitHub Yes: Issues, pull requests and Actions runs across repositories, through the gh CLI3042 Partly: A GitHub tab searches public repositories and shallow-clones them as reference; PR, issue and CI views aren’t documented39
Issue trackers Partly: GitHub (github.com), through the gh CLI; no Linear or Jira3042 No: None yet: Atlas’s own Issues feature is roadmapped, and importing knowledge from Jira and Confluence is being explored443
Where it runs
Cloud execution No: Agents run as child processes on your computer, or on your own server with splash-server17 No: None; sessions run on team members’ own computers. Cloud machines for agents are roadmapped44
Remote access Yes: splash-server runs on the machine with your code; you use it in a browser over an SSH tunnel. Single user.7 No: No SSH or remote-host mode is documented, and the web app and in-progress mobile app run no agents. Shared threads (in progress) can send a prompt to a teammate’s desktop agent94535
Auto-update No: Download new versions from GitHub Releases; the app does not update itself1946 Yes: Downloads updates and asks to restart on macOS and Windows; on Linux it reports a new version for your package manager to install20
History and search
Existing agent history Sessions started outside the app Yes: Browse, preview and import conversations agents list over ACP, including ones started outside Splash3037 Yes: Backfills Claude Code transcripts on disk once capture is on, and imports sessions from agents that can list them4316
Search transcripts Yes: Search titles, folders and saved transcript text, archived sessions included30 Partly: Desktop: session titles, projects, agents, models and branches, plus ⌘F within a session. Web app: prompts, responses and tool calls too3147

Where they differ

How agents connect

Both use the Agent Client Protocol. Atlas installs external agents from the ACP registry as npx packages or platform binaries, and ships Atlas Agent, which runs in process on a hard fork of OpenAI’s Codex and is billed to an organization. Splash runs each agent’s own CLI with your login, natively or through a pinned adapter.254151822232

Where work happens

In Atlas all agents share the open project folder on a team member’s computer; per-run working copies come with Shared threads (in progress), and cloud agents are roadmapped. Splash runs each session in the project folder or its own git worktree on a splash/… branch, on your computer or under splash-server on a machine you reach over SSH.53544307

Accounts, teams and price

Atlas is Apache 2.0 licensed, free in the alpha and usable signed out. Google or GitHub sign-in with a synced organization adds a shared session timeline, comments, team chat and Atlas Agent, whose usage is billed to the organization under a plan Atlas grants; no prices are published. Splash is MIT-licensed and free, has no accounts, and splash-server serves one user.143295171316287

Workflow focus

Atlas keeps agent work on the record: with capture on, checkpoints tie each commit to the agent session behind it, agents that support HTTP MCP share an on-device memory per repository, and an editor, block terminal and git client sit alongside. Splash centers on the conversations: a Needs attention queue, a review screen, transcript search and a GitHub view of issues, PRs and Actions.638344136393042

Release state and platforms

Atlas is an alpha Tauri app for macOS and Windows x64, with Linux packages the README calls untested. Several features its docs describe, including notifications and handing a chat to another agent, are listed under unreleased 0.4.0. Splash, in early development, builds for macOS 14+, Windows 11 x64 and Ubuntu 24.04 x64.3841248119

Which one fits

Splash may suit you if

  • You want each session in its own git worktree and branch, so parallel agents don’t edit the same folder.
  • You want to run agents on another machine through splash-server and an SSH tunnel.
  • You want one queue for permission requests, connection failures and finished turns, kept across restarts.
  • You want a GitHub view of issues, pull requests and Actions runs across your repositories.

Atlas may suit you if

  • You want each commit linked to the recorded agent session that produced it.
  • You want your team to share session timelines, comments and chat through a synced organization.
  • You want an editor, a block terminal and a git client in the same window as your agents.
  • You want your agents in a repository to share an on-device memory of plans and decisions.

Sources

Facts about Atlas come from its public website, documentation and repositories as they read on 10 October 2026; we haven't confirmed each one by running Atlas. Facts about Splash link to its source. Products change, so check the linked pages before deciding. Something wrong or out of date? Open an issue.

  1. 1 Splash README Splash on GitHub · github.com · checked 2026-10-09
  2. 2 Agent Client Protocol agentclientprotocol.com · agentclientprotocol.com · checked 2026-10-09
  3. 3 Every coding agent, one workspace, your whole team Atlas · tryatlas.cc · checked 2026-10-10
  4. 4 README.md pacifio/atlas on GitHub · github.com · checked 2026-10-10
  5. 5 Welcome to Atlas Atlas · docs.tryatlas.cc · checked 2026-10-10
  6. 6 Session capture Atlas · docs.tryatlas.cc · checked 2026-10-10
  7. 7 Splash README: Run as a web app over SSH Splash on GitHub · github.com · checked 2026-10-09
  8. 8 docs/architecture.md pacifio/atlas on GitHub · github.com · checked 2026-10-10
  9. 9 Web app Atlas · docs.tryatlas.cc · checked 2026-10-10
  10. 10 Splash releases Splash on GitHub · github.com · checked 2026-10-09
  11. 11 Releases pacifio/atlas on GitHub · github.com · checked 2026-10-10
  12. 12 Changelog Atlas · docs.tryatlas.cc · checked 2026-10-10
  13. 13 LICENSE Splash on GitHub · github.com · checked 2026-10-09
  14. 14 LICENSE pacifio/atlas on GitHub · github.com · checked 2026-10-10
  15. 15 ADR-0003: Codex fork as native agent pacifio/atlas on GitHub · github.com · checked 2026-10-10
  16. 16 Download Splash splash.computer · splash.computer · checked 2026-10-09
  17. 17 AI access & spend Atlas · docs.tryatlas.cc · checked 2026-10-10
  18. 18 Atlas Agent Atlas · docs.tryatlas.cc · checked 2026-10-10
  19. 19 Splash README: Download the app Splash on GitHub · github.com · checked 2026-10-09
  20. 20 Install Atlas · docs.tryatlas.cc · checked 2026-10-10
  21. 21 Splash README: How it works Splash on GitHub · github.com · checked 2026-10-09
  22. 22 src/agents/registry.rs Splash on GitHub · github.com · checked 2026-10-09
  23. 23 Splash README: Agents Splash on GitHub · github.com · checked 2026-10-09
  24. 24 Agents Atlas · docs.tryatlas.cc · checked 2026-10-10
  25. 25 ACP registry Atlas · docs.tryatlas.cc · checked 2026-10-10
  26. 26 crates/atlas-agent-servers/src/connection.rs pacifio/atlas on GitHub · github.com · checked 2026-10-10
  27. 27 Settings Atlas · docs.tryatlas.cc · checked 2026-10-10
  28. 28 Splash README: Build from source Splash on GitHub · github.com · checked 2026-10-09
  29. 29 Your account Atlas · docs.tryatlas.cc · checked 2026-10-10
  30. 30 Splash README: Features Splash on GitHub · github.com · checked 2026-10-09
  31. 31 Agent chat Atlas · docs.tryatlas.cc · checked 2026-10-10
  32. 32 src/agents/customize.rs Splash on GitHub · github.com · checked 2026-10-09
  33. 33 Skills Atlas · docs.tryatlas.cc · checked 2026-10-10
  34. 34 Memory Atlas · docs.tryatlas.cc · checked 2026-10-10
  35. 35 Shared threads Atlas · docs.tryatlas.cc · checked 2026-10-10
  36. 36 Terminal Atlas · docs.tryatlas.cc · checked 2026-10-10
  37. 37 Splash README: Existing sessions and review Splash on GitHub · github.com · checked 2026-10-09
  38. 38 Concepts Atlas · docs.tryatlas.cc · checked 2026-10-10
  39. 39 Git & Diff Atlas · docs.tryatlas.cc · checked 2026-10-10
  40. 40 app/src/components/FileTab.svelte Splash on GitHub · github.com · checked 2026-10-09
  41. 41 Editor Atlas · docs.tryatlas.cc · checked 2026-10-10
  42. 42 Splash README: GitHub view Splash on GitHub · github.com · checked 2026-10-09
  43. 43 Self-healing Atlas · docs.tryatlas.cc · checked 2026-10-10
  44. 44 Issues Atlas · docs.tryatlas.cc · checked 2026-10-10
  45. 45 Mobile Atlas · docs.tryatlas.cc · checked 2026-10-10
  46. 46 app/src/components/settings/About.svelte Splash on GitHub · github.com · checked 2026-10-09
  47. 47 Timeline Atlas · docs.tryatlas.cc · checked 2026-10-10
  48. 48 Roadmap Atlas · docs.tryatlas.cc · checked 2026-10-10