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Best AI Coding Tools

AI coding assistants come in three shapes: inline completion inside your editor, agentic editors that change many files, and terminal agents that read whole repositories. The table below compares verified tools from the directory on plans, pricing and API access.

12 verified tools10 with a free plan6 with API access

The comparison at a glance

CriterionGitHub CopilotClaude CodeOpenAI CodexDevin Desktop (formerly Windsurf)Replit
ProviderGitHubAnthropicOpenAICognitionReplit
What it is forAn AI pair programmer and coding agent that works in your editor, terminal and on GitHub itself.Anthropic's agentic coding tool that reads your codebase, edits files and runs commands from the terminal, IDE, desktop or browser.OpenAI's coding agent, included with ChatGPT plans and usable with an API key.The renamed Windsurf editor, rebuilt around managing local and cloud coding agents.A browser-based platform where Replit Agent builds, hosts and publishes apps from plain-language prompts.
Latest confirmed model—Claude Opus 5.5
Sep 22, 2026		GPT-6.1 Sol
Sep 29, 2026		SWE-2
Sep 10, 2026		—
Main capabilities
  • Inline suggestions
  • Agent mode in IDEs
  • Copilot CLI
  • Cloud agent (Depends on plan)
  • Code review (Depends on plan)
  • Third-party agent delegation (Preview)
  • Terminal CLI
  • IDE extensions
  • Desktop and web (Depends on plan)
  • MCP, skills and hooks
  • Routines and scheduled tasks
  • GitHub Actions / GitLab CI and code review
  • Codex CLI and IDE extension
  • Cloud tasks (Depends on plan)
  • Desktop app (Limited)
  • Fast and Ultrafast modes (Depends on plan)
  • Extra credits (Depends on plan)
  • Tab completions and inline edits
  • Agent Command Center
  • Devin Cloud (Depends on plan)
  • SWE-2 model (Depends on plan)
  • DeepWiki and Ask Devin (Depends on plan)
  • Fusion harness
  • Replit Agent (Depends on plan)
  • Plan mode (Depends on plan)
  • Publishing (Depends on plan)
  • Parallel agents (Depends on plan)
  • Database rollback (Depends on plan)
Free planYes
2,000 inline suggestions per month; 50 chat requests; limited chat and agent usage		NoYes
Quick coding tasks		Yes
Light agent quota; unlimited Tab completions and inline edits		Yes
Daily Agent credits up to a monthly cap (amount not stated); monthly cloud credits
Cheapest paid planPro: $10/moPro: $20/mo
$17/mo billed annually
Annual billing is $200 up front		Go: $8/moPro: $20/moCore: $20/mo
$18/mo billed annually
API accessNo · docs (opens in a new tab)Yes · docs (opens in a new tab)Yes · docs (opens in a new tab)LimitedNo
Learning curveBeginner-friendlySome experience helpsSome experience helpsSome experience helpsBeginner-friendly
Last verifiedOct 19, 2026Oct 19, 2026Oct 19, 2026Oct 19, 2026Oct 19, 2026

Browse genuinely free AI tools Browse the full directory

How we would choose

  • Where it runs: your current editor, a dedicated editor, or the terminal.
  • What the free plan actually caps — completions, chats or credits per month.
  • How much of your code the tool can see, and the data-retention terms.

Advantages

  • Real speedups on boilerplate, tests and refactors
  • Terminal agents can work across a whole repository
  • Multi-model support lets you match the model to the task

Limitations

  • Generated code always needs human review — AI-assisted code shows more vulnerabilities in security studies
  • Agent pricing scales with usage and can surprise you
  • Terminal tools have a learning curve if you live in an IDE

Practical use cases

Illustrative scenarios for this category — not customer case studies.

  • Writing and refactoring tests across an existing codebase
  • Explaining unfamiliar code before you change it
  • Scaffolding a feature, then reviewing the diff like a pull request

Frequently asked questions

Are free AI coding tools good enough?
For occasional use, often yes — but free tiers cap completions or chats per month. The comparison states each tool's free limits.
Which is best: Copilot, Claude Code or Cursor?
They run in different places — IDE, terminal, dedicated editor. The right question is where your work happens; the table shows each tool's surface.
Does AI-generated code need review?
Always. Security research (Veracode) found roughly 45% of AI-generated code samples introduced OWASP Top 10 vulnerabilities — review capacity is the bottleneck.
Do these tools train on my code?
Depends on the plan and vendor — several offer no-training modes on business plans. Each profile links to the provider's own documentation.

Also in this category

Lovable

A chat-based builder that turns plain-language descriptions into working web apps with hosting.

Bolt.new

A browser-based AI builder that creates, hosts and shares full-stack web apps from prompts.

v0

Vercel's AI builder that generates web apps and interfaces and deploys them to Vercel.

Cursor

An AI-first code editor with local and cloud agents, now sold on a shared Cursor and Grok subscription.

Tabnine

A private, organisation-aware AI coding agent designed to run inside a company's own environment.

JetBrains AI

AI Assistant, the Junie agent and JetBrains Air for building software with agents in JetBrains IDEs.

Amazon Q Developer

AWS's AI coding assistant, whose IDE plugins reach end of support on April 30, 2027 with Kiro as the recommended replacement.

Related comparisons and guides

AI coding tools compared side by sideVerified data from the same directory.Best free AI coding toolsVerified data from the same directory. The full AI tools directorySearch, filter and compare every verified tool.

The table shows up to five entries in the directory's editorial order, not a ranking. Every value links back to a record with sources and a last-verified date.