Home / Alternatives

Comparisons

Open source alternatives to Jira, Notion, Codex, and more

Every open-source alternative that ranks for “replace Jira,” “replace Notion,” or “self-host an AI SDR” solves cost and hosting around the same object model as the incumbent it copies: a ticket, a page, an outbound queue, a kanban of coding tasks. Maskin is the Apache-2.0, MCP-native workspace where the unit of work is a bet — a testable hypothesis with a win condition, owned jointly by a human and agents — so the loop from signal to shipped, validated outcome actually closes. Use this hub to jump into the head-to-head that fits your team’s pain.

Pick the comparison

The one line that connects all six

Open source is a licence, not a product decision. A permissively licensed clone of a ticket queue, a page tree, an outbound sequencer, or a coding-task kanban reproduces that shape’s ceiling. Maskin’s bet-and-loop object model — insight → bet → task → shipped → validated — is the different shape underneath, expressed as first-class workspace objects a team configures rather than code a developer wires. For the doctrine behind planning in bets rather than backlogs, see bet-based product planning; for the category above these comparisons, see what is an agentic workspace?; for how the same object-model argument plays against the twelve 2026 coding-agent entrants, see the self-hosted AI agent control plane comparison; for the full object-model spec across every category, browse the full docs.

Common threads across every comparison

• Apache 2.0. Read the behaviour, modify it, run it commercially — a permissive licence, not a look-but-don’t-touch one.
• MCP-native. The UI, agents, and any Claude/Codex/local-model client talk to one unified object model over one API. See what is MCP-native?
• Self-host always free. Pay only for your own infrastructure and model usage. See self-hosted AI workspace for the full self-host story.
• Human-gated loops. Agents bring the signal; humans keep the taste points. Bounded by close conditions and promote gates, not open-ended chat.

Want the short version of what Maskin is and who builds it? Read the Maskin Team’s intro deck.

Not sure which page fits?

Start with the head-to-head that names the tool you’re already paying for. If you’re on Jira or Linear and the pain is per-seat cost plus a summariser bolted on a ticket, read the Jira alternative. If you’re on Notion and the pain is docs-as-CMS with agents that only annotate pages, read the Notion alternative. If you’re evaluating 11x/Artisan/SalesForge, read the AI SDR page. If you’re shipping past Codex/Claude Code and want the loop past the merged PR, read the Codex alternative. If you’re weighing a desktop knowledge-work agent like Claude Cowork and want an open-source option, read the Claude Cowork alternative. If you’re shopping the wider OSS agent field and don’t know which category fits, start with the field survey of self-hosted AI agent repos — it splits the 2026 landscape into the four categories buyers actually filter on. If you’re surveying the twelve 2026 OSS control planes, read the self-hosted control plane page. If you’re choosing a coding agent to install rather than a control plane to run a fleet of them, the open-source AI coding agent shortlist sorts the runtimes, control planes, and product workspaces into three tiers. If you’re already on n8n and wondering what else is out there, the n8n alternative page sorts the options into four shapes and says when to stay put. If you’re running Paperclip’s org chart of AI employees and wondering whether the shape still fits, the Paperclip alternative page sorts the options into five shapes and says when Paperclip is the better call.