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Aider

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Open-source AI pair programmer in your terminal

An open-source AI pair programming tool that runs in the terminal, connecting to the LLM of your choice to read your codebase and edit files directly. It automatically commits every change to git, preserving a full work history.

Open sourceKorean I/OCommercial use OK
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vs. similar tools: Its strength is an open-source workflow that connects any LLM via BYOK and automatically commits every edit to git.

Overview

At a glance

  • Open-source freedom to connect any LLM via BYOK
  • Auto-commits every edit to git, preserving full work history
  • Agent mode reads the codebase and edits files directly
  • No autocomplete, so it works differently from IDE-style assistants
  • API costs for the connected LLM are billed separately
  • Best for: Terminal-first developers who care about a clean git history
Read more

Aider is an open-source AI pair programming tool that runs in the terminal. It connects directly to the LLM of your choice to read your codebase and edit files, and its agent mode carries out changes across multiple files on its own. It suits developers comfortable in a command-line environment rather than an in-IDE assistant.

Its strengths come from openness and a git-friendly design. As Apache-2.0 open source it is free to use, and connecting any model via BYOK keeps you from being locked to a single provider. Above all, it auto-commits every edit to git, so the full history of what changed and when is preserved. With a code-quality score of 84 and value for money at 90, the results are strong relative to cost.

The limits lie in how it works and how it is billed. It offers no autocomplete, so it differs from IDE-style experiences that suggest code as you type, and an ease-of-use score of 76 means some adjustment if you are new to the terminal. The tool itself is free, but the API costs of the connected LLM are billed separately by usage.

But anyone who wants an IDE-integrated assistant offering inline autocomplete should look at other coding tools.

Pricing

PlanMonthly priceLimits
Open source$0/moApache-2.0 license, free. API costs for the connected LLM are billed separately

Specs

Autocomplete
Not supported
Agent mode
Supported
API
No
Open source
Yes
Self-hosting
Available
Korean support
Input/output only
Commercial use
Allowed

Popularity

Buzz and recognition on absolute thresholds

44

Absolute-threshold score

44

High confidence3/3 signals

Google TrendsYouTube recent resultsGitHub starsGoogle Trends Criterion: Google Trends relative search interest over the past 30 days. Raw value: 29 / 100 Absolute-threshold score: 3.6/10 Updated: 2026-06-16YouTube recent results Criterion: YouTube Data API recent video search result estimate over the past 30 days. Raw value: 47 results Absolute-threshold score: 3.8/10 Updated: 2026-06-16GitHub stars Criterion: GitHub stargazers for the public repository, when available. Raw value: ★ 46,061 Absolute-threshold score: 8.9/10 Updated: 2026-06-16

Each axis maps to a 1-10 absolute threshold where 10 means broadly recognizable. Collected: 2026-06-16.

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Last updated: 2026-05-30

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