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AI Coding Assistants
Build apps and fix code with an ad-supported AI coding agent.
Freebuff includes a free, ad-supported plan for coding and chat. Available models and allowances depend on region, access tier and capacity. Optional paid plans and some models cost extra; connected Claude Code or Codex accounts use their own provider plans. Check the current limits before starting.
Check official pricing
Build apps, edit code and fix bugs with an open-source AI coding agent. The ad-supported free plan is an alternative to Cursor, Copilot and Claude Code; limits and optional paid plans apply. Visit the project website to check the currently available deployment options.
Technologies recorded in the catalog snapshot.
Use a desktop AI agent with persistent context and integrations across communication platforms.
The MIT-licensed agent can run locally without a software license fee. Model APIs, optional Nous Portal subscriptions, search or other services, and cloud machines may charge separately. A free agent is not free access to every model.
Use an AI assistant to write and edit code.
OpenCode software is MIT-licensed and free. A local model uses your own hardware; paid provider APIs or subscriptions bill separately. Optional OpenCode Go is USD 10/month and Go Plus USD 40/month, with model-specific usage limits.
Build and run AI agents that handle recurring work for you.
Self-hosting has no license fee; you pay for infrastructure and model providers. The hosted Platform is paid with usage-based runs. Platform code uses Polyform Shield for personal/internal business use; classic components are MIT, so the whole platform should not be described as MIT open source.
Build AI chatbots and automated workflows.
Cloud Sandbox is free with limited credits and storage. The provider lists Professional at USD 590/workspace/year and Team at USD 1,590/workspace/year on annual billing, before applicable taxes. Community self-hosting uses your infrastructure; model API keys and paid features can add costs.
Prototype AI workflows visually and connect components into runnable applications.
The published Langflow builder has a free self-hosted option. Your server, database, external model APIs and integrations may cost money. Any managed cloud allowance is a separate provider plan, not unlimited free model usage.
Minimal terminal coding agent you can fully customize.
We have not checked this tool’s current pricing. Visit its official website before choosing a plan.
