Otto

Free plan AndroidAPIiPhoneLinuxMacSelf-hosted+2

What Otto is

Otto is a free, open-source, self-hosted coding assistant for running and managing coding agents on a machine or cloud host. Access is provided through desktop, web, mobile, and CLI clients, with downloads for Windows, macOS, Linux, and Android; the maker says there is no iOS build yet. Otto manages agents rather than supplying one, so users must install and authenticate at least one provider CLI first. Native providers listed include Claude Code, Codex, OpenCode, and Pi, alongside ACP catalog providers, plugin providers, and configured OpenAI-compatible endpoints. Agents can start development servers, inspect applications in a browser pane, interact with them, and capture screenshots plus console or network output. The product supports named personalities, role-based teams, background tasks, scheduled runs, and shareable artifacts. Coding tools include navigation, diagnostics, diff review, selective commits, pull-request and merge workflows, and Git history. Local models can use compatible endpoints with user credentials. Remote access supports an optional encrypted relay or direct VPN or tunnel connection. The free plan costs nothing.

Who it suits

Otto suits developers who want to run coding agents on hardware or cloud hosts they control. It requires installing a provider CLI or configuring an OpenAI-compatible endpoint before use.

What it does well

Supports several named agent providers
Includes browser-based application verification
Offers team roles and scheduled tasks
Provides Git review and merge workflows
No required cloud account or telemetry

What to know first

No agent is included
Requires provider installation and authentication
No iOS build yet
Users secure their own host and credentials

Plans

Plan	Billed and limits	Price
Free	Free and open source; use an installed provider or configure an OpenAI-compatible endpoint with your own credentials	Free

As otto-code.me lists them, read 12 Oct 2026. The maker's own page has the final word.

Verdict

Otto offers a broad control layer for coding agents across desktop, web, mobile, and CLI clients. Its self-hosted privacy model is useful for developers who can manage providers and host security themselves.

Facts from Otto's own pages

Coding agent: Yes · otto-code.me, 22 Sept 2026
Agent orchestration: Otto supports named agent personalities, role-based teams, background tasks, scheduled runs, and shareable artifacts. · otto-code.me, 12 Oct 2026
Agent providers: Native providers include Claude Code, Codex, OpenCode, and Pi; the maker also lists ACP catalog providers, plugin providers, and configured OpenAI-compatible endpoints. · otto-code.me, 12 Oct 2026
Browser verification: Agents can start a development server, inspect the running app in a browser pane, interact with it, and capture screenshots and console or network output. · otto-code.me, 12 Oct 2026
Chat assistance: Yes · otto-code.me, 22 Sept 2026
Free plan: Yes · otto-code.me, 22 Sept 2026
IDE and Git: The product includes code navigation and diagnostics, diff review, selective commits, pull request and merge workflows, and Git history tools. · otto-code.me, 12 Oct 2026
Local models: Otto can connect to OpenAI-compatible endpoints, including local models, and says prompts can stay on hardware the user owns. · otto-code.me, 12 Oct 2026
Maker: Otto is described as a personal project by Philippe, not a startup. · otto-code.me, 12 Oct 2026
Platform availability: Downloads are listed for Windows, macOS, Linux, and Android; the web app is available, and the maker says there is no iOS build yet. · otto-code.me, 12 Oct 2026
Prerequisite: Otto manages agents but does not ship one, so users must install and authenticate at least one provider CLI before using it. · otto-code.me, 12 Oct 2026
Privacy: Otto says it has no required cloud service or account, collects no app telemetry, and uses no analytics, tracking pixels, cookies, or ads. · otto-code.me, 12 Oct 2026
Purpose: Otto is a self-hosted coding assistant for running and managing coding agents on a machine or cloud host and accessing them from desktop, web, mobile, or CLI clients. · otto-code.me, 12 Oct 2026
Relay data: For the optional relay, the maker says it can see IP addresses, connection timing, message sizes, and session IDs, while messages are end-to-end encrypted with XSalsa20-Poly1305. · otto-code.me, 12 Oct 2026
Remote access: Users can connect to their daemon through an optional end-to-end encrypted relay or a direct connection such as a VPN or tunnel. · otto-code.me, 12 Oct 2026
Security responsibility: Otto runs agents in the local user context, and users are responsible for securing their host, network, credentials, and deployment configuration. · otto-code.me, 12 Oct 2026
Support: Otto directs users with questions to open an issue on GitHub and says it takes no sponsorships or donations of its own. · otto-code.me, 12 Oct 2026
Terminal access: Yes · otto-code.me, 22 Sept 2026

Where Otto stands on Freedom251

AI Coding Assistants#53 of 102