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AI Coding Tools

Aider

$ BudgetFree · Last reviewed August 2026

Aider is an open-source AI pair-programming agent that runs in the terminal, editing files in a local git repository through any of many model providers, including fully local models. Each change lands as a git commit, which keeps the agent's work reviewable and reversible. The software is free; cost is only the model usage on your own API keys. It appeals to developers who live in the terminal and want delegation without adopting a new editor or cloud service.

open-sourceai-agentterminal

Overview

Founded
2023
Pricing tier
Low
Startup-friendly
Yes
Enterprise-ready
No

AI coding tool

Tool type
Agent
Free tier
Yes: Free open-source software; bring your own model keys
Open-source
Yes
Self-hostable
Yes
Model-agnostic
Yes
Local models
Yes
IDE integration
No

Categories & compliance

Categories

Attributes are sourced facts; rankings are derived from them by a transparent scoring engine. “Verified” is a vendor-claimed badge and has no effect on ranking.