Cursor
AI IDEs & Editors
- AI-first VS Code fork with agent mode
- Multi-file edits and terminal commands
- Codebase-wide context and rules
- Free tier with limited requests
Code & Development (87)
87 free code & development tools and 12 more — pricing tier and real capabilities on every entry. No ads, no sponsored placement.
AllAI IDEs & EditorsTerminal & CLI AgentsCode Autocomplete & AssistantsApp Builders & Vibe CodingAutonomous Coding AgentsAI Code ReviewAI Docs & Codebase Q&AAI Testing & QAAI DevOps & SREAI Database & SQL CopilotsVector Databases & RAG InfraAI Game Development
freemium
Google Antigravity
AI IDEs & Editors
- Google's agent-first IDE
- Powered by Gemini 3 models
- Autonomous multi-step coding
- Free access tier
Windsurf
AI IDEs & Editors
- Agentic IDE with the Cascade flow
- Now part of Cognition (Devin)
- Deep whole-repo awareness
- Free tier available
Zed
AI IDEs & Editors
- Blazing-fast, Rust-built editor
- Agentic editing and prediction
- Real-time collaboration
- Free and open-source core
Kiro
AI IDEs & Editors
- AWS's spec-driven agentic IDE
- Turns requirements into plans and code
- Hooks and steering files
- Free tier
Trae
AI IDEs & Editors
- ByteDance's free AI IDE
- SOLO agent builder mode
- Access to frontier models
- Generous free usage
JetBrains Junie
AI IDEs & Editors
- Autonomous coding agent embedded in JetBrains IDEs (IntelliJ, PyCharm, WebStorm)
- Plans and executes multi-step coding tasks in-IDE
- Deep integration with JetBrains code intelligence/refactoring
Qoder
AI IDEs & Editors
- Multi-agent collaboration IDE from Alibaba
- Handles codebases up to 100,000 files with long-running agents (up to 26h)
- Auto-generates repo wikis (400,000+ generated)
- Tencent Cloud's AI code editor plus plugins and CLI
- Free plan with 100 base credits monthly and 5,000 completions
- Promotional period currently allows all models and unlimited completions
- International build available with multiple model providers
- Open-source, vendor-neutral IDE with AI agents built on Theia AI
- Bring your own API key or local model; no telemetry on code or prompts
- Customisable agents and prompts, governed by the Eclipse Foundation
OpenAI Codex CLI
Terminal & CLI Agents
- #1 on Terminal-Bench with GPT-5-series
- Runs in terminal, IDE or the cloud
- Sandboxed autonomous edits
- Included with ChatGPT plans
Gemini CLI
Terminal & CLI Agents
- Open-source terminal agent from Google
- Huge free daily model quota
- Built-in tools and MCP support
- Great value for everyday coding
Aider
Terminal & CLI Agents
- Open-source AI pair programmer in your terminal
- Git-aware commits and edits
- Works with any model (bring your key)
- Free to use
Cline
Terminal & CLI Agents
- Open-source autonomous coding agent for VS Code
- Plan/Act modes with approvals
- Bring your own API key or model
- MCP tool support
OpenCode
Terminal & CLI Agents
- Fully open-source terminal/IDE/desktop coding agent, MIT licensed
- Bring-your-own model across 75+ providers, free models included
- Parallel agent sessions with shareable session links
Crush
Terminal & CLI Agents
- Terminal coding agent from Charm with LSP-aware context
- Cross-platform incl. Android/BSD, MCP server support over HTTP/stdio/SSE
- Agent Skills standard support for extensibility
Goose
Terminal & CLI Agents
- Open-source agent (now under Agentic AI Foundation/Linux Foundation) usable as CLI, desktop app or API
- 70+ MCP extensions, 15+ LLM providers supported
- Apache-2.0 licensed, built in Rust
Qwen Code
Terminal & CLI Agents
- Open-source terminal CLI adapted from Gemini CLI, tuned for Qwen3-Coder models
- OpenAI-SDK compatible for flexible model backends
- Free npm install, agentic coding workflows
Amp
Terminal & CLI Agents
- Multi-model routing across frontier models with no artificial usage caps
- Four agent reasoning modes (low/medium/high/ultra) plus parallel subagents
- Remote 'Orbs' execution machines and an Oracle deep-reasoning tool
Warp
Terminal & CLI Agents
- Terminal rebuilt as an agentic development environment for any coding agent
- Multi-agent orchestration with model routing and codebase indexing
- Oz cloud agent platform for moving from local to cloud execution
GitHub Copilot CLI
Terminal & CLI Agents
- GitHub-native terminal agent that works directly with issues and PRs
- /fleet command runs parallel subagents; /remote syncs sessions to VS Code and mobile
- Included in all Copilot tiers incl. the free plan
Kilo Code
Terminal & CLI Agents
- Same open-source agent usable in VS Code, JetBrains, CLI and cloud from one account
- Models billed at cost with no markup, bring-your-own-key supported
- MIT-licensed with fully visible prompts and context windows
- Open-source CLI agent for general software-engineering tasks
- Works with multiple LLM providers
- Trajectory recording and tool ecosystem
- Powers the agent behind ByteDance Trae
- Terminal coding agent that needs no API key, subscription or card; funded by small text ads shown in the CLI
- Daily allowance of 'Freebucks' spendable across several open models (DeepSeek V4.1 Flash, GLM 5.3 Flash, MiMo 2.6 and others)
- Built-in sub-agents for file picking, code review and browser use on the open Codebuff framework
- Freebuff Web builds and hosts full-stack apps at no charge
- MIT-licensed terminal coding agent from Moonshot AI that edits files, runs shell commands and uses MCP
- Log in with Kimi OAuth or plug in a Moonshot Open Platform API key or other compatible provider
- Successor to the archived Python kimi-cli
- Apache-2.0 minimal terminal coding agent built around Devstral models
- Devstral 2 was offered free on Mistral's API during launch; Experiment plan in Mistral Studio has free API usage
- Reads, edits and runs commands across a project with conversational instructions
GitHub Copilot
Code Autocomplete & Assistants
- The most widely used AI pair programmer
- Free tier: 2,000 completions & chats/month
- Agent mode and multi-model choice
- Works across all major IDEs
Amazon Q Developer
Code Autocomplete & Assistants
- AWS-savvy coding assistant and agents
- Security scanning and code transforms
- Feature development from issues
- Free tier available
Tabnine
Code Autocomplete & Assistants
- Privacy-first completions (can run air-gapped)
- Personalized to your code
- Model choice and controls
- Free Basic plan
- Apache-2.0 open-source coding agent for VS Code, JetBrains and the CLI
- Bring any model: cloud API keys or local models via Ollama
- Custom rules, MCP tools and PR checks defined as code
- Self-hosted AI coding assistant with completion and chat
- Runs on your own hardware with open code models, no cloud dependency
- IDE extensions for VS Code, JetBrains and Vim
Lovable
App Builders & Vibe Coding
- Prompt to full-stack app with clean React
- Built-in Supabase and GitHub sync
- Best all-round for SaaS MVPs
- Free daily messages
Bolt.new
App Builders & Vibe Coding
- Prompt to a live full-stack app in the browser
- Most framework flexibility
- One-click hosting and deploy
- Free daily tokens
v0 (Vercel)
App Builders & Vibe Coding
- Beautiful Next.js apps and UI from prompts
- Built-in databases and deploy to Vercel
- Great component generation
- Free monthly credits
Replit Agent
App Builders & Vibe Coding
- Most autonomous end-to-end app builder
- Real-browser testing and 30+ integrations
- Cloud IDE, hosting and databases
- Free Starter plan
Base44
App Builders & Vibe Coding
- Zero-config: DB, auth and hosting handled
- Fastest path for non-technical founders
- All-in-one build-and-ship
- Free tier to start
Chef (Convex)
App Builders & Vibe Coding
- AI app builder that generates a real transactional backend (Convex), not just a frontend
- Free tier plus a low-cost hosted plan, with credits earned via milestones
- Can run locally or in-browser, backend gets realtime subscriptions by default
Rork
App Builders & Vibe Coding
- Purpose-built for native iOS/mobile app creation via chat, not just web apps
- In-app iOS build/install/publish workflow plus auto-generated App Store screenshots
- Direct App Store shipping and monetization path for indie builders
a0.dev
App Builders & Vibe Coding
- Real-time AI agent that writes/edits a mobile app as you describe it
- One-click publishing handles App Store Connect listing and upload
- Built-in Convex/Supabase backend plus payments and analytics dashboard
Tempo
App Builders & Vibe Coding
- Positions as an 'AI software factory' aimed at product teams, not solo hobbyists
- Generates production React apps from natural language specs
- Team workflow features for PM/design/eng collaboration on generated apps
Emergent
App Builders & Vibe Coding
- Conversational agents design, code AND deploy an app end-to-end in one flow
- 1M-token context on Pro+ tiers for large app generation
- Free tier with 10 monthly credits, no credit card required
Dyad
App Builders & Vibe Coding
- Fully open-source, runs locally on your machine with offline capability
- 21k+ GitHub stars, zero vendor lock-in with clean exportable code
- Built-in security scanning for SQL injection/XSS in generated apps
Onlook
App Builders & Vibe Coding
- Visual drag-and-drop editor that writes directly into a real React/Next.js codebase
- Open-source self-hosted version (25.8k GitHub stars) plus hosted cloud tier
- Bridges design and dev with code as the source of truth, not a design-tool export
Subframe
App Builders & Vibe Coding
- AI-native visual design tool where every layer maps to production Tailwind/Radix code
- CLI sync tool pulls generated components straight into a codebase
- Free tier (1 project, 10 pages) with no AI training on user designs
- Turns prompts, sketches and screenshots into high-fidelity UI screens and front-end code
- AI-native canvas with a design agent, streaming generation and clickable prototypes
- Exports to AI Studio, Antigravity, Figma or a Netlify publish
- Free monthly generation allowance on a Google account
- Describe an app and PartyRock builds widgets chained to Amazon Bedrock foundation models
- Free daily usage with no AWS account or credit card
- Share and remix apps from a public catalog
- Text, image and chat widgets
- Community fork of Bolt.new that lets you pick any LLM provider
- Prompt, run, edit and deploy full-stack apps in the browser
- Self-hosted with Docker or Node
- Open-source vibe coding platform you deploy to your own Cloudflare account
- Generates and previews apps in sandboxes and deploys to Workers
- Includes phased generation and templates
Google Jules
Autonomous Coding Agents
- Async coding agent that fixes issues & PRs
- Runs in a cloud VM on your repo
- Powered by Gemini
- Free daily tasks
OpenHands
Autonomous Coding Agents
- Self-hosted control center for coding agents with GUI, CLI and SDK surfaces
- Enterprise deployment controls over models, data access and auditability
- MIT licensed, 83.9k GitHub stars, very active commit history
- Roughly 100-line agent that solves GitHub issues or works in your command line
- Bash-only, no special tools; works with any LM via API
- From the Princeton/Stanford SWE-agent team
- Takes a GitHub issue and tries to fix it automatically with your LM of choice
- Research-grade agent-computer interface for repo edits
- MIT-licensed
- Open-source asynchronous coding agent from LangChain
- Works on tasks in the background and opens pull requests
- Bring your own model
CodeRabbit
AI Code Review
- Agentic AI reviews on PRs and CLI with automated one-click fix suggestions
- Multi-repo analysis, SAST/linter integration, and MCP connections
- Usage-based Slack review agent priced per agent-minute
Greptile
AI Code Review
- Free Starter tier with unlimited repositories for individual developers
- Credit-based review pricing (1 credit = 1 standard review)
- Deep codebase-context reviews (TREX) beyond diff-only analysis
- Open-source AI reviewer that describes, reviews and suggests improvements on pull requests
- Runs as a GitHub Action, CLI or self-hosted app with your own LLM key
- Supports GitHub, GitLab, Bitbucket and Azure DevOps
- AI pull request reviews for GitHub and GitLab with summaries, bug findings and one-click fixes
- Free for open-source projects
- Does not keep code after review or train on it
Mintlify
AI Docs & Codebase Q&A
- Docs platform built for both human readers and AI agent consumption
- Self-updating knowledge base with 2B+ agent interactions/year at scale
- Powers docs for 25% of the latest YC batch and 40% of the Forbes AI 50
DeepWiki
AI Docs & Codebase Q&A
- Auto-generates conversational, up-to-date wikis for any public GitHub repo
- Built by Cognition (Devin) — ask natural-language questions about a codebase's architecture
- Free to browse/query indexed repos, integrates with Devin for private repo indexing
Context7
AI Docs & Codebase Q&A
- MCP server that injects current, version-accurate library docs straight into AI coding agents' context
- Solves the stale-training-data problem for framework/API docs in Cursor/Claude Code/Windsurf
- Built by Upstash, free public usage with paid enterprise tier
- Turns raw documents into a queryable RAG knowledge base with agent mode
- Self-hostable with web UI and MCP
- Supports multimodal documents and multiple retrieval strategies
- Open-source from Tencent
- Open-source self-hostable wiki generator for GitHub, GitLab and Bitbucket repos
- Chat with a repository using RAG and diagrams
- Use OpenAI, Gemini, OpenRouter or local Ollama models
- Packs an entire repository into one AI-friendly file
- Token counting, security checks and compression options
- CLI, web UI and MCP server
- Swap 'hub' for 'ingest' in a GitHub URL to get a prompt-friendly repo digest
- Free web app plus CLI and Python package
- Open source
Momentic
AI Testing & QA
- Tests authored in plain English/YAML, no framework or selector maintenance needed
- Self-healing tests with 8.9M+ auto-heals logged, distinguishes UI change from real regression
- Runs web, iOS and Android tests in CI/CD with 96% signal-to-noise root cause analysis
- Open-source platform that generates API and integration tests from real traffic
- Mocks dependencies automatically for isolated replays
- Community edition free to self-host
- Open-source SRE agent that investigates alerts and incidents across your observability stack
- Connects to Prometheus, Kubernetes and logs via toolsets
- CNCF Sandbox project; bring your own LLM
- Scans Kubernetes clusters and explains issues in plain language
- Pluggable analyzers and AI backends including local models
- Apache-2.0 CLI and operator
Vanna AI
AI Database & SQL Copilots
- Fully open-source text-to-SQL agent, self-hostable with no vendor lock-in
- Multi-turn conversational querying across Postgres, Snowflake, BigQuery, MySQL, SQLite and more
- Agent memory (hosted vector DB) that improves query accuracy over time
Wren AI
AI Database & SQL Copilots
- Open-core 'context engine' (public on GitHub) converts natural language to governed SQL across 20+ sources
- Row/column-level security enforced at query time for agentic BI use
- One-prompt GenBI dashboard creation plus MCP embedding for product integration
Outerbase
AI Database & SQL Copilots
- AI-powered database GUI with natural-language 'EZQL' querying and auto chart generation
- Spreadsheet-style table editor plus self-serve AI dashboards across 10+ database engines
- Private AI models that don't train on customer data; recently joined Cloudflare
- Cross-platform database client with natural-language SQL generation and optimisation
- Local-first workspace supporting many databases
- Bring your own AI provider
Qdrant
Vector Databases & RAG Infra
- Open-source Rust-based vector database, self-hostable for free with no scale limit
- Managed free tier cluster (0.5 vCPU/1GB RAM/4GB disk) for prototyping RAG apps with no card required for OSS use
- Hybrid Cloud option to run managed clusters on your own infrastructure for compliance-sensitive RAG
Weaviate
Vector Databases & RAG Infra
- Free managed cloud plan (100k objects, 1GB memory, 10GB disk) to explore without self-hosting
- Open-source core project can be self-hosted for free indefinitely, same engine as the managed cloud
- Built-in hybrid (vector + keyword) search and native embedding/query-agent integrations
Chroma
Vector Databases & RAG Infra
- Fully open-source embedded/self-hosted vector store, the default choice bundled into countless RAG tutorials and frameworks
- Chroma Cloud managed tier starts with free usage credits, no subscription
- Simple Python/JS-native API designed to be the easiest on-ramp to RAG for developers
- Builds knowledge graphs and community summaries from private text for RAG
- Answers global, dataset-wide questions that vector RAG misses
- Open-source Python library and CLI
- Works with OpenAI-compatible and local models
- Cloud-native Apache-2.0 vector database for large-scale similarity search
- Runs from a single-file Lite mode to distributed clusters
- Managed Zilliz Cloud has a separate free tier
- Embedded, developer-friendly retrieval library for multimodal AI
- Columnar Lance format with vector and full-text search
- Apache-2.0
- Open-source vector similarity search extension for Postgres
- HNSW and IVFFlat indexes with exact and approximate search
- Available on most managed Postgres hosts
- Fully managed vector database with a free Starter plan
- Starter includes about 2 GB storage and monthly read/write units
- Serverless indexes with integrated inference
- Open-source AI search platform combining vector, text and structured search
- Real-time indexing and on-node ML inference
- Apache-2.0; free to self-host
- All-in-one embeddings database for semantic search, LLM orchestration and workflows
- Runs fully local with open models
- Apache-2.0
Rosebud AI
AI Game Development
- Natural-language-to-playable-game engine (2D/3D) generating JS/Three.js/React code, playable directly in browser
- 2.3M+ community-created games hosted on the platform
- Built-in AI generator for sprites/textures alongside code generation
Inworld AI
AI Game Development
- Character Engine SDK powering AI NPCs shipped in real titles from Krafton, Sony and Ubisoft (Neo NPC, GDC-demoed)
- Multimodal NPCs with dialogue, gesture and action generation, not text-only chat
- Partnerships with NVIDIA ACE, Xbox and Comcast NBCUniversal LIFT Labs
Convai
AI Game Development
- Mature Unity and Unreal Engine plugins for embodied conversational NPCs (sight, hearing, dialogue, gesture)
- NVIDIA Inception startup collaborating on NVIDIA ACE for Games
- Live in shipped experiences including Second Life and Stormgate
- Desktop game engine with AI assistance for 2D and 3D games using GDScript
- Free desktop app with unlimited projects and no royalties
- Exports to Windows and macOS, deploys to Steam and itch.io
- Generative AI for game art, sprites and textures with consistent style
- Free plan with 50 daily credits and no card required
- Custom model training on paid tiers
Code & Development — straight answers
What code & development tools does Flocci list?
Flocci AI Tools lists 99 code & development tools, ordered free tiers first: Chat2DB, Cloudflare VibeSDK, DeepWiki, Eclipse Theia IDE and Gitingest. 87 of the 99 are free or have a free tier. Every entry states what it uniquely does, not a score.
Which code & development tools are completely free?
Yes — 35 of these are marked fully free with no paid plan attached: Chat2DB, Cloudflare VibeSDK, DeepWiki, Eclipse Theia IDE and Gitingest. The rest are freemium, trial or paid, and each row states which.
How is Code & Development organised?
Into 12 sub-categories — AI IDEs & Editors, Terminal & CLI Agents, Code Autocomplete & Assistants, App Builders & Vibe Coding, Autonomous Coding Agents, AI Code Review, AI Docs & Codebase Q&A, AI Testing & QA, AI DevOps & SRE, AI Database & SQL Copilots, Vector Databases & RAG Infra, AI Game Development — holding 99 tools between them. Each sub-category has its own page with the same pricing labels and capability lists.