Open-source alternatives to Codeium

AI Tools · 3 free & open-source options

Looking to replace Codeium with something free and open-source? These 3 tools are the best open alternatives in 2026 — most are self-hostable, so you keep full control of your data and pay no subscription.

llm-ls ›Apache-2.0
LSP server leveraging LLMs for code completion (and more?)
Are Copilots Local Yet? The frontier of local LLM Copilots for code completion, project generation, shell assistance, and more. Find tools shaping tomorrow's developer experience, today!

At a glance: how they compare

Click a column to sort — the best one depends on what matters to you.

AlternativeStarsLanguageLicenseLast commitIn one line
TabNineMITAI Code Completions
llm-lsApache-2.0LSP server leveraging LLMs for code completion (and more?)
are-copilots-local-yetMITAre Copilots Local Yet? The frontier of local LLM Copilots for code completion, project generation, shell assistance, and more. Find tools shaping tomorrow's developer experience, today!

Which one should you pick?

TabNine

AI Code Completions Its MIT license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.

llm-ls

LSP server leveraging LLMs for code completion (and more?) Its Apache-2.0 license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.

are-copilots-local-yet

Are Copilots Local Yet? The frontier of local LLM Copilots for code completion, project generation, shell assistance, and more. Find tools shaping tomorrow's developer experience, today! Its MIT license is permissive — free to use commercially, embed and modify. Because it is self-hostable, your data can stay entirely on your own infrastructure.

Switching from Codeium without the drama

  1. Export your data from Codeium first — most tools above can import standard formats.
  2. Run your top pick in parallel for a week or two before committing; self-hosted options can be tried locally in minutes.
  3. Migrate one team or one project at a time, keeping the old account read-only until everything checks out.

FAQ

What is the best open-source alternative to Codeium?

The top open-source alternative is TabNine — AI Code Completions. The full ranked list is above.

Are these Codeium alternatives free?

Yes. Every tool listed is open-source and free to use; most can be self-hosted so you keep full control of your data.

Can I self-host an alternative to Codeium?

Most of these tools are designed to run on your own server or machine, giving you privacy and no subscription fees.

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