The 100% Free Stack to Launch Your Product in 2026

The 100% free stack to launch your product in 2026 👇🏽
0. Run your idea through the "grill-me" prompt on ChatGPT to make sure you are building something valuable (prompt in comments).
1. Start the UI with Google AI Studio. Free and the simplest tool in town.
2. Export the code to GitHub.
3. Clone in your local computer.
3. Make any changes through Google's Anti-gravity or OpenCode - both have generous tiers and free model access.
4. Connect with a backend using Supabase. Free.
5. Push back on GitHub.
6. Use Vercel to deploy in production, and share the URL with your users.
All cloud services - GCP, Azure, AWS have generous free tiers like Vercel.
7. Do not forget to add PostHog for analytics. (Just signup on Posthog, and ask Antigravity to integrate PostHog with your app, no need for any manual work).
In 2026 you are not limited by your tech skills, you are limited by your ability to judge - which problems are worth solving.
Here are a few resources to learn this whole process:
1. Become an AI Builder: https://lnkd.in/gFTimcUX
2. Learn analytics: https://lnkd.in/g2VaJnuA
3. Tech 101 for PMs: https://lnkd.in/gNp8vN4g

Here's the check, tool by tool:

Broadly accurate:

• Google AI Studio — real, free, browser-based tool for building with Gemini; accurately described as simple/free.
• GitHub — real, free tier exists for hosting code/repos as described.
• Supabase — real, has a genuinely generous free tier (Postgres DB, auth, storage) commonly used exactly this way.
• Vercel — real, free "Hobby" tier for deploying frontends, matches the described use.
• PostHog — real, has a free tier for analytics, and does support this kind of "ask the AI agent to wire it up" integration flow.
• OpenCode — real, open-source AI coding CLI/agent with free model access options.

Needs a caveat — "generous free tier" for Antigravity is outdated/overstated:

• Google Antigravity is real — it's Google's agent-first coding IDE, launched November 2025. But its free tier has not stayed generous. Multiple sources report Google cut it significantly starting December 2025 (daily request limits dropped sharply), and by mid-2026 commentary describes the pricing as unstable, with a paid Pro tier around $20/month now positioned as the serious option, and reviewers flagging "opaque credits" and "damaged trust" over the repeated free-tier cuts. So calling it flatly "free" with "generous free access" alongside Anti-gravity in an August 2026 post is likely inaccurate or at least stale — worth checking Google's current pricing page before publishing.

Not fact-checkable as written:

• "Grill-me" prompt — referenced as "in comments," which I don't have access to. Can't verify content or effectiveness.
• "0. Run your idea through the grill-me prompt... to make sure you are building something valuable" — this is process advice/opinion, not a factual claim.
• "You are not limited by your tech skills, you are limited by your ability to judge which problems are worth solving" — opinion/motivational framing, not verifiable.
• The three linked resources (lnkd.in links) — I can't fetch LinkedIn redirect links to verify what they actually point to or whether they're legitimate/relevant courses.

Minor structural note: the numbered list has two "3."s (duplicate numbering for "Clone in your local computer" and "Make any changes through..."), which is a copy error rather than a factual one, but worth fixing before publishing.

Bottom line: the stack is real and the individual tools are correctly described, except the Antigravity free-tier claim, which is the one place reality has moved since the tool launched and no longer matches "generous and free."