All 99 code & development tools in the catalog across 12 sub-categories, ordered free tiers first.
Flocci AI Tools lists 99 of them, ordered free tiers first: Chat2DB, Cloudflare VibeSDK, DeepWiki, Eclipse Theia IDE and Gitingest. 87 of the 99 are free or have a free tier. Each entry states what it uniquely does rather than a score.
35 on this page are marked fully free with no paid plan at all: Chat2DB, Cloudflare VibeSDK, DeepWiki, Eclipse Theia IDE and Gitingest. The remaining 64 are freemium, trial or paid, and each is labelled with its exact tier so nothing surprises you at sign-up.
Free tools first, then freemium, then trial, then paid, and alphabetically inside each tier. Nobody pays to appear higher: Flocci AI Tools carries no ads, no sponsored slots and no paid listings, so the order reflects price and nothing else.
Chat2DB, Cloudflare VibeSDK, DeepWiki, Eclipse Theia IDE and Gitingest all work in a browser tab with no install needed — just open the site and go. 42 of the 87 free Code & Development Tools listed here are browser-based.
Chat2DB, Gemini CLI, a0.dev, Base44 and Bolt.new support Google sign-in, so you can start without creating a new account. That's 30 of the 87 free Code & Development Tools on this page.
a0.dev, Amazon Q Developer, GitHub Copilot, Kiro and Replit Agent have an iOS or Android app. 7 of the 87 free Code & Development Tools here can run on your phone.
Aider, bolt.diy, Cline, Continue and Crush can be self-hosted or run locally without a browser — useful for privacy, air-gapped networks, or avoiding API rate limits. 40 of the 87 free Code & Development Tools here run offline.
| Tool | Pricing | Type | Listed for |
|---|---|---|---|
| Chat2DB | Free | AI Database & SQL Copilots | Cross-platform database client with natural-language SQL generation and optimisation |
| Cloudflare VibeSDK | Free | App Builders & Vibe Coding | Open-source vibe coding platform you deploy to your own Cloudflare account |
| DeepWiki | Free | AI Docs & Codebase Q&A | Auto-generates conversational, up-to-date wikis for any public GitHub repo |
| Eclipse Theia IDE | Free | AI IDEs & Editors | Open-source, vendor-neutral IDE with AI agents built on Theia AI |
| Gitingest | Free | AI Docs & Codebase Q&A | Swap 'hub' for 'ingest' in a GitHub URL to get a prompt-friendly repo digest |
| OpenHands | Free | Autonomous Coding Agents | Self-hosted control center for coding agents with GUI, CLI and SDK surfaces |
| Repomix | Free | AI Docs & Codebase Q&A | Packs an entire repository into one AI-friendly file |
| Vespa | Free | Vector Databases & RAG Infra | Open-source AI search platform combining vector, text and structured search |
| Aider | Free | Terminal & CLI Agents | Open-source AI pair programmer in your terminal |
| bolt.diy | Free | App Builders & Vibe Coding | Community fork of Bolt.new that lets you pick any LLM provider |
| Cline | Free | Terminal & CLI Agents | Open-source autonomous coding agent for VS Code |
| Continue | Free | Code Autocomplete & Assistants | Apache-2.0 open-source coding agent for VS Code, JetBrains and the CLI |
| Crush | Free | Terminal & CLI Agents | Terminal coding agent from Charm with LSP-aware context |
| DeepWiki-Open | Free | AI Docs & Codebase Q&A | Open-source self-hostable wiki generator for GitHub, GitLab and Bitbucket repos |
| Gemini CLI | Free | Terminal & CLI Agents | Open-source terminal agent from Google |
| Goose | Free | Terminal & CLI Agents | Open-source agent (now under Agentic AI Foundation/Linux Foundation) usable as CLI, desktop app or API |
| HolmesGPT | Free | AI DevOps & SRE | Open-source SRE agent that investigates alerts and incidents across your observability stack |
| K8sGPT | Free | AI DevOps & SRE | Scans Kubernetes clusters and explains issues in plain language |
| Kimi Code CLI | Free | Terminal & CLI Agents | MIT-licensed terminal coding agent from Moonshot AI that edits files, runs shell commands and uses MCP |
| LanceDB | Free | Vector Databases & RAG Infra | Embedded, developer-friendly retrieval library for multimodal AI |
| Microsoft GraphRAG | Free | Vector Databases & RAG Infra | Builds knowledge graphs and community summaries from private text for RAG |
| Milvus | Free | Vector Databases & RAG Infra | Cloud-native Apache-2.0 vector database for large-scale similarity search |
| mini-SWE-agent | Free | Autonomous Coding Agents | Roughly 100-line agent that solves GitHub issues or works in your command line |
| Mistral Vibe | Free | Terminal & CLI Agents | Apache-2.0 minimal terminal coding agent built around Devstral models |
| Open SWE | Free | Autonomous Coding Agents | Open-source asynchronous coding agent from LangChain |
| OpenCode | Free | Terminal & CLI Agents | Fully open-source terminal/IDE/desktop coding agent, MIT licensed |
| pgvector | Free | Vector Databases & RAG Infra | Open-source vector similarity search extension for Postgres |
| PR-Agent | Free | AI Code Review | Open-source AI reviewer that describes, reviews and suggests improvements on pull requests |
| Qwen Code | Free | Terminal & CLI Agents | Open-source terminal CLI adapted from Gemini CLI, tuned for Qwen3-Coder models |
| SWE-agent | Free | Autonomous Coding Agents | Takes a GitHub issue and tries to fix it automatically with your LM of choice |
| Tabby | Free | Code Autocomplete & Assistants | Self-hosted AI coding assistant with completion and chat |
| Trae Agent | Free | Terminal & CLI Agents | Open-source CLI agent for general software-engineering tasks |
| txtai | Free | Vector Databases & RAG Infra | All-in-one embeddings database for semantic search, LLM orchestration and workflows |
| Vanna AI | Free | AI Database & SQL Copilots | Fully open-source text-to-SQL agent, self-hostable with no vendor lock-in |
| WeKnora (Tencent) | Free | AI Docs & Codebase Q&A | Turns raw documents into a queryable RAG knowledge base with agent mode |
| a0.dev | Freemium | App Builders & Vibe Coding | Real-time AI agent that writes/edits a mobile app as you describe it |
| Amazon PartyRock | Freemium | App Builders & Vibe Coding | Describe an app and PartyRock builds widgets chained to Amazon Bedrock foundation models |
| Amazon Q Developer | Freemium | Code Autocomplete & Assistants | AWS-savvy coding assistant and agents |
| Base44 | Freemium | App Builders & Vibe Coding | Zero-config: DB, auth and hosting handled |
| Bolt.new | Freemium | App Builders & Vibe Coding | Prompt to a live full-stack app in the browser |
| Chef (Convex) | Freemium | App Builders & Vibe Coding | AI app builder that generates a real transactional backend (Convex), not just a frontend |
| Chroma | Freemium | Vector Databases & RAG Infra | Fully open-source embedded/self-hosted vector store, the default choice bundled into countless RAG tutorials and frameworks |
| CodeRabbit | Freemium | AI Code Review | Agentic AI reviews on PRs and CLI with automated one-click fix suggestions |
| Context7 | Freemium | AI Docs & Codebase Q&A | MCP server that injects current, version-accurate library docs straight into AI coding agents' context |
| Convai | Freemium | AI Game Development | Mature Unity and Unreal Engine plugins for embodied conversational NPCs (sight, hearing, dialogue, gesture) |
| Emergent | Freemium | App Builders & Vibe Coding | Conversational agents design, code AND deploy an app end-to-end in one flow |
| Freebuff | Freemium | Terminal & CLI Agents | Terminal coding agent that needs no API key, subscription or card; funded by small text ads shown in the CLI |
| GitHub Copilot | Freemium | Code Autocomplete & Assistants | The most widely used AI pair programmer |
| Google Jules | Freemium | Autonomous Coding Agents | Async coding agent that fixes issues & PRs |
| Google Stitch | Freemium | App Builders & Vibe Coding | Turns prompts, sketches and screenshots into high-fidelity UI screens and front-end code |
| Greptile | Freemium | AI Code Review | Free Starter tier with unlimited repositories for individual developers |
| Inworld AI | Freemium | AI Game Development | Character Engine SDK powering AI NPCs shipped in real titles from Krafton, Sony and Ubisoft (Neo NPC, GDC-demoed) |
| Keploy | Freemium | AI Testing & QA | Open-source platform that generates API and integration tests from real traffic |
| Kiro | Freemium | AI IDEs & Editors | AWS's spec-driven agentic IDE |
| Lovable | Freemium | App Builders & Vibe Coding | Prompt to full-stack app with clean React |
| Mintlify | Freemium | AI Docs & Codebase Q&A | Docs platform built for both human readers and AI agent consumption |
| Momentic | Freemium | AI Testing & QA | Tests authored in plain English/YAML, no framework or selector maintenance needed |
| Pinecone | Freemium | Vector Databases & RAG Infra | Fully managed vector database with a free Starter plan |
| Qdrant | Freemium | Vector Databases & RAG Infra | Open-source Rust-based vector database, self-hostable for free with no scale limit |
| Replit Agent | Freemium | App Builders & Vibe Coding | Most autonomous end-to-end app builder |
| Rork | Freemium | App Builders & Vibe Coding | Purpose-built for native iOS/mobile app creation via chat, not just web apps |
| Rosebud AI | Freemium | AI Game Development | Natural-language-to-playable-game engine (2D/3D) generating JS/Three.js/React code, playable directly in browser |
| Scenario | Freemium | AI Game Development | Generative AI for game art, sprites and textures with consistent style |
| Sourcery | Freemium | AI Code Review | AI pull request reviews for GitHub and GitLab with summaries, bug findings and one-click fixes |
| Subframe | Freemium | App Builders & Vibe Coding | AI-native visual design tool where every layer maps to production Tailwind/Radix code |
| Tempo | Freemium | App Builders & Vibe Coding | Positions as an 'AI software factory' aimed at product teams, not solo hobbyists |
| v0 (Vercel) | Freemium | App Builders & Vibe Coding | Beautiful Next.js apps and UI from prompts |
| Weaviate | Freemium | Vector Databases & RAG Infra | Free managed cloud plan (100k objects, 1GB memory, 10GB disk) to explore without self-hosting |
| Wren AI | Freemium | AI Database & SQL Copilots | Open-core 'context engine' (public on GitHub) converts natural language to governed SQL across 20+ sources |
| Amp | Freemium | Terminal & CLI Agents | Multi-model routing across frontier models with no artificial usage caps |
| CodeBuddy (Tencent) | Freemium | AI IDEs & Editors | Tencent Cloud's AI code editor plus plugins and CLI |
| Cursor | Freemium | AI IDEs & Editors | AI-first VS Code fork with agent mode |
| Dyad | Freemium | App Builders & Vibe Coding | Fully open-source, runs locally on your machine with offline capability |
| GitHub Copilot CLI | Freemium | Terminal & CLI Agents | GitHub-native terminal agent that works directly with issues and PRs |
| Google Antigravity | Freemium | AI IDEs & Editors | Google's agent-first IDE |
| JetBrains Junie | Freemium | AI IDEs & Editors | Autonomous coding agent embedded in JetBrains IDEs (IntelliJ, PyCharm, WebStorm) |
| Kilo Code | Freemium | Terminal & CLI Agents | Same open-source agent usable in VS Code, JetBrains, CLI and cloud from one account |
| Onlook | Freemium | App Builders & Vibe Coding | Visual drag-and-drop editor that writes directly into a real React/Next.js codebase |
| OpenAI Codex CLI | Freemium | Terminal & CLI Agents | #1 on Terminal-Bench with GPT-5-series |
| Outerbase | Freemium | AI Database & SQL Copilots | AI-powered database GUI with natural-language 'EZQL' querying and auto chart generation |
| Qoder | Freemium | AI IDEs & Editors | Multi-agent collaboration IDE from Alibaba |
| Summer Engine | Freemium | AI Game Development | Desktop game engine with AI assistance for 2D and 3D games using GDScript |
| Tabnine | Freemium | Code Autocomplete & Assistants | Privacy-first completions (can run air-gapped) |
| Trae | Freemium | AI IDEs & Editors | ByteDance's free AI IDE |
| Warp | Freemium | Terminal & CLI Agents | Terminal rebuilt as an agentic development environment for any coding agent |
| Windsurf | Freemium | AI IDEs & Editors | Agentic IDE with the Cascade flow |
| Zed | Freemium | AI IDEs & Editors | Blazing-fast, Rust-built editor |
| Qodo | Trial | AI Code Review | Context-aware agentic review across IDE, PR, CLI and Git workflows in one platform |
| Anything (Create.xyz) | Paid | App Builders & Vibe Coding | Builds mobile apps, sites and tools from natural language with 40+ integrations |
| Claude Code | Paid | Terminal & CLI Agents | Terminal-native agent, best on large codebases |
| Cubic | Paid | AI Code Review | Paid plans only; there is no free plan. |
| Devin | Paid | Autonomous Coding Agents | Most autonomous cloud coding agent |
| Graphite Diamond | Paid | AI Code Review | AI reviewer built into Graphite's stacked-PR workflow, not a bolt-on bot |
| incident.io AI | Paid | AI DevOps & SRE | Nexus model reasons across telemetry, deployments, code and incident history simultaneously |
| Augment Code | Paid | AI IDEs & Editors | Context Engine built for very large enterprise codebases |
| Cleric | Paid | AI DevOps & SRE | Autonomous SRE agent investigates production alerts and delivers root cause analysis in ~5 minutes |
| Factory | Paid | Autonomous Coding Agents | Enterprise 'Droids' across the whole SDLC |
| QA Wolf | Paid | AI Testing & QA | Hybrid platform-plus-service model: pay-as-you-go AI credits or full 'Coverage as a Service' |
| Sourcegraph Cody | Paid | Code Autocomplete & Assistants | Deep whole-codebase context |