11 open source AI coding tools. All have a free plan. Paid plans start at $25 a month. Newest check: 12 Nov 2026.
268 of 721 tools were checked against the vendor's own page in the last 30 days.
| Tool | Price from | Free plan | Runs on | Rating | Checked |
|---|---|---|---|---|---|
| AtuinOpen-source shell history with encrypted sync across machines, plus Threads to search and resume coding-agent sessions (32.3k GitHub stars). | Free | Yes | Mac · Windows | 4.0 | 12 Nov |
| InsForgeOpen-source AI agent backend with 12,800+ GitHub stars: $25/mo Pro, free tier. 2.4x fewer tokens than Supabase MCP on MCPMark v2. YC Spring 2026, 6-person team. | $25/mo | Yes | Web | 3.7 | 5 Sep |
| ShakespeareOpen-source AI website builder. Create with any AI model, export projects, pay for tokens. Launched July 2025, free beta, no subscriptions. | Free | Yes | Web | 3.4 | 19 Aug |
| attention-queueTerminal app that queues every Claude Code session in tmux that needs you as one card at a time, with four checking modes: review, step, quiz, vibe. | Free | Yes | -- | 3.2 | 12 Nov |
| AiderFree, open-source terminal pair programmer that edits your git repo and commits each change; bring your own LLM key. 49,000+ GitHub stars. | Free | Yes | Mac · Windows | -- | 3 Oct |
| BAMLBAML is a free, open-source (Apache-2.0) language with 9,000+ GitHub stars for building type-safe, testable structured LLM outputs and agents. | -- | Yes | Web · Mac · Windows | -- | 17 Aug |
| Cron AICron AI is a free open-source tool generating cron expressions from plain English descriptions for task scheduling. | Free | Yes | Web | -- | 19 Aug |
| DailyDaily provides WebRTC SDKs and the open-source Pipecat framework for building realtime voice and video AI agents, with 75+ global points of presence. | -- | Yes | Web · iOS · Android | -- | 23 Aug |
| GitfluenceGitfluence is a free AI-powered Git command generator converting plain English to Git commands. | Free | Yes | Web | -- | 19 Aug |
| MarsXMarsX is a free AI-powered no-code and low-code platform with thousands of reusable Micro-Apps that reduces development time by 90% for building web and mobile apps. | Free | Yes | Web · iOS · Android | -- | 9 Oct |
| TiptapOpen source rich text editor framework backed by a 6,000-member Discord community; Tiptap Cloud adds AI-agent editing and paid collaboration plans. | $59/mo | Yes | Web | -- | 31 Aug |
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