Best Free AI Coding Tools

AI coding assistant by GitHub/Microsoft. Works in VS Code/JetBrains/GitHub.com. Copilot Free: 2,000 completions/month, an allowance of GitHub AI Credits, limited agents, auto model selection only. Copilot Student is free to verified students. Pro $10/mo (base 1,000 AI credits), Pro+ $39/mo (3,900), Max $100/mo (10,000), Business $19/granted seat/mo (1,900 per user), Enterprise $39/granted seat/mo (3,900 per user). Usage beyond the allowance is billed at $0.01/AI credit; code completions and next edit suggestions are unlimited on paid plans and not billed in credits. The April 2026 pause on new Pro, Pro+ and Student signups has been lifted — all individual plans accept new signups today. New self-serve purchase of Copilot Business and Copilot Enterprise remains paused (2026-04-22), with GitHub saying sign-ups reopen soon for card and PayPal customers. Best for students and unlimited usage needs. Note — discovered 2026-08-28: The free tier still exists with 2,000 completions/month and access to Haiku 4.5, GPT-5 mini, and more. Pro is now $10/month with unlimited code completion and access to Claude Code and Codex. Pro+ is $39/month with access to premium models including Opus. Max is a new tier at $100/month. Business is $19/user/month and Enterprise is $39/user/month. Corrected 2026-09-02: this row previously opened by stating that Pro, Pro+ and Copilot Student signups were paused. GitHub's plans documentation offers all three to new users and the changelog post announcing that pause is marked Retired. Source ↗

AI app builder by StackBlitz — generates frontend, backend, and database code in a live runtime environment. Free tier: 1M tokens/month (300K daily cap), unlimited databases, public + private projects, native hosting with Bolt branding, 10MB file upload limit. Paid plans from $20/mo for higher token limits. Best for unlimited usage needs.

AI-powered IDE by Codeium (formerly Codeium Editor). Free tier: limited daily quotas for Cascade AI flows, code completions, AI chat (credit system replaced by quotas Mar 2026). Pro $20/mo, Teams $40/mo, Max $200/mo. SWE-1.5 Fast Agent model for faster iteration. Grandfathered Pro subscribers keep $15/mo indefinitely. All tiers include premium models Note — 2026-04-13: Windsurf Max plan ($200/mo) confirmed as power-user tier alongside Teams ($40/mo/seat). SWE-1.5 Fast Agent model announced for faster iteration. Full tier lineup: Free (limited daily quotas), Pro ($20/mo), Teams ($40/mo), Max ($200/mo). Source ↗

Superseded: As of 2026-09-03, kiro.dev/pricing reads: KIRO FREE $0 per month 50 credits. KIRO PRO $20 per user / month 1,000 credits. KIRO PRO+ $40 per user / month 2,000 credits. KIRO PRO MAX $100 per user / month 5,000 credits. KIRO POWER $200 per user / month 10,000 credits. Add-on credits are $0.04/credit. $20 credit towards first paid plan upgrade. We are not publishing our stored Amazon Kiro terms beside it — our own pricing change record, discovered 2026-09-03, names them as the previous ones. Read what we recorded ↓ Note — discovered 2026-09-03: The tier names have changed. 'Pro+' is now 'Pro Max'. There is a new 'Pro Max' tier at $100/month for 5,000 credits. The sign-up bonus is now $20 towards a paid plan, instead of 500 bonus credits. Add-on credits are available for all paid tiers and cost $0.04/credit, with packs ranging from $5 to $100. Unused add-on credits roll over for 12 months. Source ↗

Open-source autonomous AI coding agent for VS Code. Fully free — users provide their own API keys (OpenRouter, Anthropic, OpenAI, etc.). Supports file editing, terminal commands, browser interaction. No usage limits beyond API provider costs. MIT licensed.

Open-source AI pair programming CLI tool. Fully free — users provide their own LLM API keys (supports GPT-4o, Claude, Gemini, DeepSeek, Ollama local models). Git-aware editing, multi-file changes, voice coding, in-chat image support. Apache 2.0 licensed.

AI app builder (formerly GPT Engineer) — generates full-stack apps from natural language. Free tier: 5 daily credits (up to 30/month), public projects only (private projects require paid plan), cloud hosting on lovable.app, Lovable branding badge. Credits consumed at variable rates (simple styling ~0.50, auth setup ~1.20, full landing page ~1.70). Pro $25/mo (100 credits + 5 daily). Business $50/mo.

AI-powered code editor built on VS Code. Hobby is the free plan: no credit card required, limited Agent requests, access to Composer — cursor.com/pricing states no completion or request figure for it. Individual paid plans: Pro $20/month, Pro+ $60/month (3x Pro's Agent limits), Ultra $200/month (20x). Teams $40/user/month (Standard; Premium at 5x Standard's Agent limits). Enterprise is custom-priced with pooled usage, invoice/PO billing and SCIM. Cursor renders only the selected tier's price in the page body; the full ladder is published in the page's JSON-LD Offer list. Best for personal projects. Note — discovered 2026-08-28: The free tier now includes 'Limited Agent requests' and 'Access to Composer' instead of '2,000 completions/month, 50 slow premium requests'. The pricing structure has been significantly restructured with new tiers (Individual, Pro, Pro+, Ultra, Teams Standard, Teams Premium, Enterprise) and a focus on 'Agent' and 'Grok' limits. Source ↗

Agent-first IDE by Google, powered by Gemini 3. 100% free during public preview — no paid tiers yet. Built-in browser automation, multi-agent orchestration, cross-platform (Mac/Windows/Linux). Announced November 2025. Best for open source projects.

Open-source terminal AI coding agent by Google. Free tier with personal Google account: 60 requests/minute, 1,000 requests/day, 1M token context window. Powered by Gemini 3. Supports MCP tools, shell commands, file editing. Apache 2.0 licensed Best for personal projects.

AI coding assistant by AWS. Free tier: inline code suggestions, chat, 1,000 lines code transformation/month, 50 agentic requests/month, access to latest Claude models. Supports VS Code, JetBrains, CLI, and AWS Console. Pro plan $19/user/month (higher limits, admin controls, IP indemnity)