Codeium
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Free AI code completion and search for developers
What is Codeium?
Codeium is an AI-powered code completion tool that provides intelligent autocomplete, in-editor chat, and codebase-aware search for software developers. It supports over 70 programming languages and integrates with more than 40 IDEs including VS Code, JetBrains, Vim, and Emacs. The company rebranded to Windsurf in late 2024, but Codeium remains widely searched and the core technology continues.
The tool uses proprietary AI models trained on permissively licensed code to generate context-aware code suggestions as developers type. Unlike some competitors, Codeium's free tier has no usage limits on autocomplete, making it accessible to individual developers and students. The AI considers the full context of the current file, open tabs, and repository structure to provide relevant completions.
Beyond autocomplete, Codeium offers an in-editor chat assistant that can explain code, generate functions from natural language descriptions, refactor existing code, and write unit tests. Its codebase search feature uses natural language queries to find relevant code across a project, going beyond simple text matching.
Codeium has gained significant traction as a free alternative to GitHub Copilot, attracting hundreds of thousands of developers. Its enterprise tier adds features like self-hosted deployment, fine-tuning on private codebases, and admin controls for team management.
Key Features
Pros & Cons
Pros
- ✓ Generous free tier with unlimited autocomplete
- ✓ Extremely broad IDE and language support
- ✓ Trained on permissively licensed code reducing IP concerns
- ✓ Fast completions with low latency
Cons
- ✗ Brand transition to Windsurf may cause confusion
- ✗ Free tier chat is more limited than paid alternatives
- ✗ Enterprise features require significant investment
Ready to try Codeium?
See if it fits your workflow — free plan available.
Pricing
Free unlimited autocomplete; Teams $15/user/mo; Enterprise custom pricing
Individual
$0
- ✓Unlimited autocomplete
- ✓In-editor AI chat
- ✓Support for 70+ languages
- ✓40+ IDE integrations
- ✓Codebase-aware context
Teams
$15/user/month
- ✓Everything in Individual
- ✓Admin dashboard and seat management
- ✓Usage analytics
- ✓Priority support
- ✓Team-level personalization
Enterprise
Custom
- ✓Everything in Teams
- ✓Self-hosted deployment option
- ✓Fine-tuning on private codebase
- ✓SSO/SAML integration
- ✓SLA and dedicated support
Pay with crypto using a virtual Visa card
Who is Codeium for?
Speeding up daily coding with intelligent autocomplete
Learning new programming languages with AI-assisted suggestions
Generating boilerplate code and repetitive patterns
Navigating unfamiliar codebases with natural language search
Writing unit tests for existing functions
Video Tutorials
How to Use Codeium in VScode Tutorial 2026
HowToHarbor
User Reviews
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Frequently Asked Questions
Is Codeium free?
Codeium offers a free tier with limited features. Free unlimited autocomplete; Teams $15/user/mo; Enterprise custom pricing Paid plans unlock additional capabilities.
What are Codeium's key features?
Codeium's standout features include AI-powered code autocomplete with no usage limits on free tier, In-editor chat for code explanation, generation, and refactoring, Support for 70+ programming languages, Integrations with 40+ IDEs and editors. It offers 7 features in total designed for speeding up daily coding with intelligent autocomplete.
Can I pay for Codeium with cryptocurrency?
Codeium does not currently accept cryptocurrency directly. However, you can pay with crypto using a virtual Visa card funded by USDT, USDC, or other stablecoins.
What are the best alternatives to Codeium?
Popular alternatives to Codeium include Aider, Amazon Q Developer, Bolt.new. Each offers different strengths in pricing, features, and specialization.
Prompts for Codeium
Ready-to-use prompts you can copy and paste into Codeium.
Debug Code with Explanation
I have the following code that produces [describe the error or unexpected behavior]: [paste code] Please: 1. Identify the bug(s) 2. Explain why they occur 3. Provide the corrected code 4. Suggest how to prevent similar bugs in the future
Refactor Code for Clean Architecture
Refactor the following code to follow clean architecture principles: [paste code] Please: 1. Separate concerns into distinct layers 2. Extract magic numbers and strings into constants 3. Replace any God objects or functions with smaller, focused ones 4. Add proper error handling 5. Improve naming for clarity 6. Add JSDoc/docstring comments for public interfaces 7. Show before/after comparison for each change 8. Explain the reasoning behind each refactoring decision
Write Unit Tests for a Function
Write comprehensive unit tests for the following function: [paste function] Using [testing framework, e.g., Jest/pytest/JUnit], create tests covering: 1. Happy path with typical inputs 2. Edge cases (empty inputs, max values, null/undefined) 3. Error cases (invalid inputs, boundary conditions) 4. Any async behavior if applicable Follow AAA pattern (Arrange, Act, Assert). Include descriptive test names that explain the expected behavior.
Design a Database Schema
Design a database schema for [describe application, e.g., a booking system, social media app, inventory tracker]. Requirements: [list key features] Provide: 1. Entity-relationship diagram (text format) 2. Table definitions with columns, types, and constraints 3. Primary and foreign key relationships 4. Indexes recommended for common queries 5. Sample queries for 3 common operations 6. Migration script (SQL) 7. Considerations for scaling (when to normalize vs denormalize)
Write API Documentation
Write clear API documentation for the following endpoints: [paste your API endpoints or code] For each endpoint include: 1. HTTP method and path 2. Description of what it does 3. Authentication requirements 4. Request parameters (path, query, body) with types and validation rules 5. Response format with example JSON 6. Error responses with status codes and messages 7. Rate limiting info 8. Code example (curl and one programming language) Follow OpenAPI/Swagger conventions. Use consistent terminology throughout.
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