Tabby, built by TabbyML since 2023, focuses specifically on code completion, the inline, as-you-type suggestions GitHub Copilot popularized, and delivers it as a fully open-source, self-hostable alternative rather than a closed, cloud-only service.
That self-hosting option matters to a specific audience: developers and companies wanting Copilot-style autocomplete without sending code to an external API at all, running the completion model on their own infrastructure instead. Being narrowly scoped to completion, rather than chat, agents, or review, keeps the tool lightweight and focused on doing that one job well.
A free tier covers standard cloud use, and paid plans start around $19 a month for team features, with self-hosting available at no software cost beyond running the infrastructure. For a developer or team that specifically wants Copilot-style autocomplete self-hosted rather than routed through an external API, Tabby's open-source, completion-focused design is built for that exact requirement.
