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Aider logo

Aider

AI pair programmer that lives in your terminal and git repo.

FREECODING AGENTSHAS AGENT

Last updated · Filed under Coding Agents

CLICKS
0
PRICING TYPE
FREE
STARTING
Free
ADDED
2026

About this tool

Aider is an open-source AI coding assistant that runs in the terminal and pairs with Git. It maintains a map of the user's repository, edits files in place, and after each change creates a commit with a sensible message, so the user can review diffs and roll back at will. Aider works with many models including GPT-4o, Claude Sonnet, DeepSeek, Gemini and local models, and has been one of the top-ranked tools on benchmarks like SWE-Bench. Features include voice coding, image input, repo-map context selection, an architect-and-editor multi-model mode for harder tasks, lint and test integration, and support for browsing arbitrary web pages as context. Aider is popular with terminal-loving developers who want a transparent, scriptable agent rather than a GUI-driven IDE, and is fully free under an Apache license.

USE CASES
  • Repo-aware coding
  • Refactoring
  • Git workflows
  • Bug fixing
KEY FEATURES
  • CLI workflow
  • Git-aware commits
  • Repo map
  • Multi-model support
  • Voice coding
TAGS
#cli#open-source#pair-programming
AT A GLANCE

Aider pros and cons

Hand-derived from the catalog data — strengths and trade-offs to weigh before signing up.

Pros of Aider

  • Completely free to use — no paid tier required
  • Includes an autonomous AI agent for multi-step tasks
  • CLI workflow
  • Git-aware commits
  • Repo map

Cons of Aider

  • Competition is strong in this space — see Replit Agent and Cline for comparison
PLANS & PRICING

1 plan from Aider

Pulled from Aider’s public pricing page. Prices may change — verify on the vendor’s site before purchasing.

POPULAR

Free (Open Source)

Free AI pair programmer

$0forever
BYOK LLM API
  • Open source on GitHub
  • Use your own LLM API key
  • Terminal-based
  • Works with Git
HOW IT COMPARES

Aider vs Coding Agents

Side-by-side with the top 3 other coding agents in this category.

Open full comparison
TOOL
Aider logo
AiderAGENTTHIS TOOL
Coding Agents

AI pair programmer that lives in your terminal and git repo.

Replit Agent logo
Replit AgentAGENT
Coding Agents

Build and deploy apps from a prompt inside Replit.

Cline logo
ClineAGENT
Coding Agents

Open-source autonomous coding agent for VS Code.

Devin logo
DevinAGENT
Coding Agents

Autonomous AI software engineer that ships PRs.

PRICING MODELFreeFreemiumFreeFreemium
STARTING PRICEFree$20/moFree$20/mo
CATEGORYCoding AgentsCoding AgentsCoding AgentsCoding Agents
AI AGENT Yes Yes Yes Yes
EDITOR'S PICK No No No No
KEY FEATURES
  • CLI workflow
  • Git-aware commits
  • Repo map
  • Multi-model support
  • Voice coding
  • Auto-scaffolding
  • Hosted deploys
  • Database setup
  • Step-by-step plan
  • In-browser IDE
  • Open source
  • VS Code extension
  • Plan/Act modes
  • BYO API key
  • Terminal access
  • Autonomous coding
  • Shell and browser
  • Slack interface
  • PR generation
  • Long-running tasks
USE CASES
  • Repo-aware coding
  • Refactoring
  • Git workflows
  • Bug fixing
  • MVP apps
  • Internal tools
  • Side projects
  • Database-backed apps
  • Codebase refactoring
  • Bug fixing
  • Feature work
  • Multi-file edits
  • Bug fixes
  • Feature work
  • Code migrations
  • Junior engineering
TAGS
#cli#open-source#pair-programming
#agent#full-stack#hosted
#agent#vs-code#open-source
#agent#autonomous#engineer
WEBSITEaider.chatreplit.com/aicline.botwww.cognition.ai/devin
QUESTIONS & ANSWERS

Aider — frequently asked questions

What is Aider?
Aider is an AI coding agents tool used for repo-aware coding, refactoring, git workflows.
Is Aider free?
Yes — Aider is free to use, with no paid tier required.
Does Aider include an AI agent?
Yes — Aider includes agentic capabilities: it can plan and execute multi-step tasks autonomously, not just answer one prompt at a time.
What are the key features of Aider?
Notable features include CLI workflow, Git-aware commits, Repo map, Multi-model support, Voice coding.
What can Aider be used for?
Common use cases for Aider include repo-aware coding, refactoring, git workflows, bug fixing.
What are the best alternatives to Aider?
If Aider isn't quite right for your use case, top alternatives in the coding agents space include Replit Agent, Cline, Devin. See the full list on ConsistencyAI’s Aider alternatives page.
Is Aider better than Replit Agent?
Aider and Replit Agent both serve coding agents workflows but target different needs. Compare pricing, features, and use cases head-to-head on the Aider vs Replit Agent page to pick the right fit.
What are the pros and cons of Aider?
Strengths: fully free; autonomous agent capability; CLI workflow + Git-aware commits. Tradeoffs: competing tools in the space may offer different feature mixes. See the full Pros & Cons section above for detail.

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