Programming Free

Aider

Aider is an open-source AI pair programmer that edits code in your local Git repository from the terminal.

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PricingFree
Starting priceFree open-source tool; model/API usage costs depend on the LLM provider you connect.
Free planYes
Free trialYes
APIYes
Open sourceYes
DeploymentSelf Hosted
Last verifiedJuly 29, 2026
Overview

Tool overview

Aider is listed under Programming AI tools.

Summary

What is Aider?

Aider is a terminal-based AI coding assistant that works with files in a Git repository. Developers chat with a model, ask for code changes, review edits, and commit updates while keeping the workflow close to the command line.

Best fit

Best for

DevelopersCLI usersOpen-source contributorsTechnical foundersAI coding power users
Audience

Who is it for?

Software engineersOpen-source maintainersDevOps engineersTechnical teams
Capabilities

Key features

Terminal AI coding assistant

Git repository editing

Multi-file code changes

Commit workflows

Works with many LLM providers

Scriptable CLI

Open-source Apache 2.0 license

Workflows

Use cases

Editing code in an existing repo

Refactoring multiple files

Writing tests

Reviewing and applying model-generated code changes

Pair programming from terminal

Strengths

Pros

  • Open source
  • Works locally with Git repositories
  • Model-provider flexible
  • Scriptable from command line or Python
Considerations

Cons

  • Requires command-line comfort
  • Model/API costs are separate
  • Needs careful code review
Considerations

Limitations

Not a hosted IDE by itself

Quality depends on chosen model and repo context

Developers remain responsible for testing and security

Cost

Pricing details

Pricing modelFree
Starting priceFree open-source tool; model/API usage costs depend on the LLM provider you connect.
Free planYes
Free trialYes
Pricing context

Billing options

Free software; external model/API costs may apply

View official pricing
Compatibility

Supported programming languages

  • Programming languages supported by chosen LLM and codebase
Connectivity

Integrations

Git

Command line

Python scripting

LLM providers via configuration

Specs

Technical details

PlatformsDesktop, Web, API
Multilingual supportUnknown
Login requiredNo
Open sourceYes
LicenseApache 2.0
DeploymentSelf Hosted
CompanyAider AI LLC
Current versionContinuous open-source releases
Models / versionsWorks with multiple LLM providers not tied to one model
Editions / plansOpen-source CLI package
Data confidenceHigh
Last verifiedJuly 29, 2026
Documentation → Source code → Release notes → Data source →
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Answers

Frequently asked questions

Aider is a terminal-based AI coding assistant that works with files in a Git repository. Developers chat with a model, ask for code changes, review edits, and commit updates while keeping the workflow close to the command line.
Developers CLI users Open-source contributors Technical founders AI coding power users
The listed pricing model for Aider is Free. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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