Build with FreeCoder
Vibe coding with FreeCoder
Vibe coding is building software by describing outcomes in plain language and letting an AI agent do the typing. You stay the director — setting goals, reviewing results, steering — while the agent handles the mechanics. FreeCoder is built for exactly this, and because it's free and unlimited, you can vibe code all day without watching a meter.
The loop
- Say what you want. Describe the feature, fix, or change as an outcome, not a set of keystrokes.
- Let it plan. Glance at the plan and nudge it if needed (plan mode).
- Review the diff. Accept the good changes; reject or redirect the rest.
- Run it. Approve the build or test command and see real output.
- Repeat. Keep talking until it's right, then commit.
How to vibe code well
- Describe the goal, not the keystrokes. “Make the form validate emails and show inline errors” beats a step-by-step recipe.
- Set the rules once. An
AGENTS.mdwith your stack, conventions and test command keeps every session on-brand. - Plan the big stuff. Multi-file work goes smoother when you approve a plan first.
- Review, don't rubber-stamp. The agent shows diffs for a reason — skim them.
- Lean on tools. Add skills for repeatable know-how and MCP servers to reach your real systems.
What you can build
From a quick script to a full feature: REST APIs, React components, CLI tools, data pipelines, refactors across dozens of files, whole test suites, and bug fixes straight from a stack trace. Because FreeCoder reads your entire project and can run commands, it works on real, existing codebases — not just toy snippets in isolation.
Vibe coding is fastest when the agent can check its own work. Tell FreeCoder how to run your tests and it'll keep iterating until they're green.
Next: Plan mode → · Agents & subagents →