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Verified July 24, 2026Self-Hosted Open Source AI Coding Agent

Refact.ai

Refact.ai / refact.ai

Open source AI coding agent and IDE extension that can be self-hosted on your own infrastructure, providing code completion, chat, and autonomous coding agents with full data privacy.

Visit Refact.ai

Pricing

Free

Free plan

Yes

Category

Developer Tools

Platforms

3

Rating

4.4 (3000)

Free plan

Yes

API access

Yes

Open source

Yes

Platforms

3

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What is Refact.ai?

Refact.ai is an open source AI coding assistant that differentiates from GitHub Copilot and Cursor by offering a self-hosted deployment option — companies can run Refact.ai's server on their own infrastructure, so all code remains within their own network without being sent to any external cloud service.

The self-hosted architecture is particularly valuable for organisations with strict data security requirements — government contractors, financial services firms, healthcare companies, and enterprises with proprietary code that cannot be sent to external AI APIs. With self-hosting, the AI model runs on the company's own GPU servers and code never leaves the internal network.

The code completion and chat capabilities are available as IDE extensions for VS Code and JetBrains, providing an experience similar to GitHub Copilot but backed by the self-hosted server. Multiple models are supported including Code Llama, StarCoder, and DeepSeek Coder, giving the administrator flexibility in choosing models based on their own capability and hardware requirements.

Refact Agent, the agentic coding feature, can use tools — running bash commands, reading files, executing tests — to complete multi-step coding tasks autonomously. This agentic capability in an open source self-hosted package makes Refact.ai notable for enterprises that want agentic AI without cloud dependency.

For teams that are not comfortable with code going to GitHub Copilot, Cursor, or other cloud AI services due to data policies, Refact.ai provides a credible open source alternative with active community development.

open-sourceself-hostedcodingprivacyenterpriseon-premise
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How Refact.ai works

Refact.ai runs as llm coding model software built around code and text workflows. Users typically start with a prompt, upload, or connected data source, and the underlying model handles the heavy lifting before returning a result you can refine or export. It's available on vs code, jetbrains, and cli, with API access for teams that want to embed it into their own products.

Key Features

What makes it worth shortlisting

The capabilities that matter most for teams evaluating Refact.ai.

01

Self-hosted deployment

Server runs on customer's own infrastructure (on-premise or private cloud) so code never leaves the internal network, providing full data sovereignty for security-sensitive organisations.

02

Refact Agent

Agentic multi-step coding capability using tools including bash execution, file reading, and test running — autonomous coding tasks in a self-hosted package without cloud dependency.

03

Multiple model support

Configurable model backend supporting Code Llama, StarCoder2, DeepSeek Coder, and other models, allowing selection based on capability needs and available hardware.

Self-hosted deployment (on-premise, air-gapped)VS Code and JetBrains extensionsCode completion and chatRefact Agent (agentic multi-step coding)Multiple model support (Code Llama, StarCoder, DeepSeek)Data privacy by designWeb UI for admin and testingDocker and Kubernetes deploymentFine-tuning on codebase (Enterprise)Usage analytics

Best use cases

Secure self-hosted AI coding
Air-gapped environment AI
Privacy-first AI code completion
Enterprise on-premise AI coding
Government and regulated industry coding AI

Who should use it

Security-conscious developers
Regulated industry engineering teams
Government contractors
Enterprise IT security teams
Open source contributors

Pros

  • Self-hosted deployment keeps code within customer infrastructure — strongest data privacy among AI coding tools
  • Open source model allows inspection and modification of the server code
  • Multiple model support gives flexibility to choose based on capabilities and GPU hardware
  • Agentic multi-step coding in a self-hosted package is unique in this space

Cons

  • Self-hosting requires GPU hardware investment and IT operational overhead
  • Model quality is competitive but below frontier models like Claude and GPT-4o on complex coding tasks
  • Active development but smaller community than GitHub Copilot or Cursor ecosystems

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Pricing Analysis

Is it worth the price?

Free and open source self-hosted version. Refact.ai cloud pro plan $20/month. Enterprise on-premise custom pricing.

Model

Open Source

Starting price

Free

Free trial

No

Similar Tools

Tools like Refact.ai

GitHub Copilot provides the strongest models but all code goes to Microsoft/GitHub. Cursor provides the best IDE experience but also requires cloud. Tabnine provides privacy-focused cloud coding AI with enterprise data controls. Continue.dev provides open source AI coding with BYO model.

Comparison

Refact.ai vs Hugging Face

A side-by-side look at the closest alternative in this category.

Refact.ai favicon

Refact.ai

Refact.ai

Hugging Face favicon

Hugging Face

Hugging Face

Overview
Rating
4.43,000 reviews
4.78,000 reviewsTop rated
Category
Developer Tools
Developer Tools
Subcategory
Self-Hosted Open Source AI Coding Agent
AI Model Hub
Company
Refact.ai
Hugging Face
Status
Active
Active
Launch year
2023
2016
Tags
open-sourceself-hostedcodingprivacyenterpriseon-premise
open-sourcemachine-learningmodelsdatasetstransformersresearch
Pricing
Starting price
FreeBest value
$9/mo
Pricing model
Open Source
Freemium
Free plan
Yes
Yes
Free trial
✕
✕
Pricing notes

Free and open source self-hosted version. Refact.ai cloud pro plan $20/month. Enterprise on-premise custom pricing.

Free for most models and Spaces. Pro $9/month for private models, priority inference, and ZeroGPU. Enterprise Hub from $20/user/month for team collaboration and security.

Capabilities
Best for
Secure self-hosted AI codingAir-gapped environment AIPrivacy-first AI code completionEnterprise on-premise AI codingGovernment and regulated industry coding AI
Open source model explorationModel fine-tuningResearchML model deploymentDataset management
Target audience
Security-conscious developersRegulated industry engineering teamsGovernment contractorsEnterprise IT security teamsOpen source contributors
AI researchersML engineersData scientistsDevelopersAcademic researchers
AI type
LLM Coding Model
ML Platform
Modalities
CodeText
TextImageAudioVideoCode
Technical
Model provider
Open Source (Code LlamaStarCoderDeepSeek Coder)
Open Source Community
Model names
Code LlamaStarCoder2DeepSeek Coder
LlamaMistralStable DiffusionFLUXWhisper
API available
✓
✓
Open source
✓
✓
Deployment
Self-hostedSaaS
SaaSAPIOpen Source
Platforms
VS CodeJetBrainsCLI
WebPython library
Integrations
GitHubGitLabDockerKubernetesAPI
GitHubGoogle ColabAWSAzureGCPVS Code
Team collaboration
✕
✓
Trust & security
Security

Self-hosted: data never leaves customer's infrastructure. Cloud version: review Refact.ai privacy policy. Enterprise includes data handling agreements.

Enterprise Hub includes SSO, access controls, audit logs, and private infrastructure. SOC 2 compliant.

Privacy notes

Self-hosted deployment keeps all code within customer's own infrastructure. Cloud service processes code on Refact.ai's servers — review privacy policy for cloud version use.

Public models and datasets are openly accessible. Enterprise Hub provides private model storage with data handling agreements. Review individual model licences before commercial deployment.

Verdict
Pros
  • Self-hosted deployment keeps code within customer infrastructure — strongest data privacy among AI coding tools
  • Open source model allows inspection and modification of the server code
  • Multiple model support gives flexibility to choose based on capabilities and GPU hardware
  • Agentic multi-step coding in a self-hosted package is unique in this space
  • De facto standard hub for open source AI models with 500,000+ available
  • Transformers library provides consistent API for diverse model families
  • Spaces enable easy demo deployment without web infrastructure
  • Free for public models and strong community support
Cons
  • Self-hosting requires GPU hardware investment and IT operational overhead
  • Model quality is competitive but below frontier models like Claude and GPT-4o on complex coding tasks
  • Active development but smaller community than GitHub Copilot or Cursor ecosystems
  • Technical platform primarily for developers and researchers
  • Inference API quality varies for very large or complex models
  • Navigation complexity increases with scale of the platform
Details

Technical & deployment info

Key facts about model providers, platforms, and team support.

Model Provider

Open Source (Code Llama, StarCoder, DeepSeek Coder)

Models

Code Llama, StarCoder2, DeepSeek Coder

Platforms

VS Code, JetBrains, CLI

Deployment

Self-hosted, SaaS

Integrations

GitHub, GitLab, Docker, Kubernetes, API

Team Collaboration

No

Launch Year

2023

Trust

Security & privacy

Compliance signals and data-handling notes as reported by the vendor.

Self-hosted: data never leaves customer's infrastructure. Cloud version: review Refact.ai privacy policy. Enterprise includes data handling agreements.

Self-hosted deployment keeps all code within customer's own infrastructure. Cloud service processes code on Refact.ai's servers — review privacy policy for cloud version use.

Reviews

What users are saying

Verified reviews from signed-in users, stored in the backend and averaged into this tool's rating.

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FAQ

Common questions about Refact.ai

Yes, self-hosted version is open source and free. Cloud pro $20/month. Enterprise on-premise custom pricing.

Editorial Verdict

Should you use Refact.ai?

Refact.ai is the best AI coding tool for organisations with strict data security requirements who need on-premise or air-gapped AI coding assistance where code cannot be sent to external cloud services.

Last verified July 24, 2026.

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