SaaSをローンチする
プロジェクトを製品へと成長させます。
「SaaSをローンチする」はCoddyKit上の無料Vibe Codingレッスンです。 これはレッスン4/4です。 下記で完全なレッスンを無料で読むことができます。その後、ブラウザ内の組み込みコードエディタと24時間対応のAIチューターでハンズオン演習できます。 これはVibe Coding学習パスの一部であり、ウェブとCoddyKitアプリ全体で進捗が同期されます。 Vibe Codingコースには全4レッスンが含まれています。
このレッスンの一部はまだ翻訳されておらず、英語で表示されています。
From Project to Product
You have a validated app that people can pay for. The last step is the scariest and most exciting: launching. A launch turns a quiet side project into a real SaaS — Software as a Service — that strangers discover, sign up for, and rely on.
Launching isn't one big moment; it's a set of habits: prep the product, tell the story, ship it publicly, and keep going after launch day. AI can help with every part. Let's do it the indie-hacker way.
Launch-Ready Checklist
Before you tell the world, make sure the basics hold. You don't need perfection — you need a product that won't embarrass you when 100 people arrive at once.
Run a checklist: does signup work, does payment work, does it load on mobile, is there a clear value message on the landing page? Ask AI to generate a tailored pre-launch checklist for your specific app.
Generate a pre-launch checklist for my SaaS, a meal-planning web app on Vercel with Stripe payments.
Cover: signup/login working, payments tested in live mode, mobile responsiveness, landing page clarity, basic error handling, a way to collect support emails, and analytics.
Give it as a checkbox list ordered by priority, flagging which items are must-haves vs nice-to-haves for launch day.A Landing Page That Converts
Most of your launch traffic hits one page: the landing page. It has seconds to answer "what is this and why should I care?"
A strong landing page has a clear headline (the value, not the features), a short subheadline, a screenshot or demo, and one obvious call-to-action. Tools like v0 and Lovable can generate a polished page from a prompt.
Generate a high-converting landing page for my SaaS using v0 / Lovable.
Product: a meal-planning app that plans your whole week in 2 minutes.
Audience: busy people who hate deciding what to cook.
Include: a benefit-driven headline, a short subheadline, 3 key benefits, a product screenshot placeholder, social-proof section, and ONE clear 'Start free' call-to-action. Modern, clean, mobile-first design.Tell a Story, Not a Spec
People don't share feature lists — they share stories. Your launch message should explain why you built this, the problem it solves, and who it's for.
The classic indie format: "I was frustrated by X, so I built Y. Here's what it does." It's honest, relatable, and human. Let AI help you draft it, then make it sound like you.
Help me write the story behind my SaaS launch.
Problem: I always wasted 30 minutes every evening deciding what to cook.
Solution: I built an app that plans my whole week in 2 minutes.
Write a short, authentic 'maker story' (3-4 sentences) I can use across my launch posts. Tone: humble, real indie hacker — not corporate marketing. Then give me 3 punchy one-line variations for social media.Where to Launch
Pick the channels where your users actually are. Common launch spots for indie SaaS:
- Product Hunt — a launch-day event for new products.
- Reddit — relevant subreddits (follow each one's self-promo rules).
- Hacker News — "Show HN" posts.
- Twitter/X & LinkedIn — your network and #buildinpublic.
- Niche communities — Discords, Slacks, forums.
You don't need all of them. Pick 2-3 where your audience lives and do them well.
Track Launch-Day Signups
On launch day, you'll want to know your numbers in real time. A simple counter of signups per source helps you see what's working. Here's the kind of tally logic you'd track.
In a real app this would read from your database; here it's a tiny demo so you see the idea.
const signups = [];
function recordSignup(source) {
signups.push({ source, at: Date.now() });
}
recordSignup('producthunt');
recordSignup('reddit');
recordSignup('producthunt');
recordSignup('twitter');
const bySource = signups.reduce((acc, s) => {
acc[s.source] = (acc[s.source] || 0) + 1;
return acc;
}, {});
console.log('Total signups:', signups.length);
console.log('By source:', bySource);Plan the Launch Day
A launch is smoother with a script. Plan the day before it arrives: when you post, in what order, who you've lined up to support, and how you'll respond to comments.
Be present — reply to every comment and question quickly. Engagement drives ranking on sites like Product Hunt, and it shows people a real human stands behind the product. Ask AI to build you an hour-by-hour launch-day plan.
Create an hour-by-hour launch-day plan for a solo founder.
I'm launching on Product Hunt (primary) plus a Reddit post and a Twitter thread.
Include: when to post on each channel (timezone matters), when to message friends for early support, how to handle comments, and reminders to stay engaged all day. Keep it realistic for one person.Set Up Support Early
New users will have questions and hit bugs. If you can't help them fast, they leave. Before launch, set up a simple support channel: a support email, a contact form, or a community chat.
You don't need a fancy help desk. A visible "Need help? email us" plus quick replies builds trust. Ask AI to add a contact form and to draft answers for the questions you expect most.
Launch Day Isn't the Finish Line
The biggest myth: that launch day is the goal. In reality it's a spike, then a beginning. Most sustainable growth comes from what you do in the weeks after.
Keep shipping improvements based on new-user feedback, keep telling your story, and keep showing up in your communities. The makers who win treat launch as the first of many — re-launching with each new feature or milestone.
Keep the Momentum
After launch, use AI to keep moving without burning out. Have it summarize feedback into a roadmap, draft your next "what's new" post, and suggest the highest-impact next feature.
The vibe-coding advantage is speed: you can ship a requested feature in a day and announce it the next. Compounding small launches keeps your product — and your audience — alive.
I launched my meal-planning SaaS a week ago. Here's the feedback and signup data (paste below).
[feedback + metrics]
Act as my co-founder:
1. Summarize the top 3 themes from feedback.
2. Recommend the single highest-impact feature to build next.
3. Draft a short 'what's new' announcement for when it ships.
4. Suggest one growth experiment to try this week.You're a Maker Now
Across this course you went from skill to shipped product:
- Built an MVP fast and validated it with real users.
- Added payments with Stripe.
- Prepped a landing page, told your story, and launched.
- Set up support and kept momentum after launch.
This is the indie-hacker loop: build small, ship, learn, repeat — with AI as your tireless teammate. The only thing left is to actually do it.
Quick Check
What's the healthiest way to think about launch day?
Recap: Launch and Beyond
You learned to launch your SaaS the indie way:
- Run a launch-ready checklist before going public.
- Build a clear, converting landing page with v0 or Lovable.
- Tell an honest maker story, not a feature spec.
- Pick 2-3 channels and plan launch day hour by hour.
- Set up support and stay engaged.
- Treat launch as a beginning — keep shipping and re-launching.
That completes the journey from idea to real product. Now go build and launch something real.
AI チューターと学ぶ JavaScript — 無料
ブラウザでリアルコードを書いて実行し、24/7 の AI チューターから瞬時にサポートを受け、ウェブまたはアプリで続きから学習できます。
- コース
- 25
- レッスン
- 100
よくある質問
「SaaSをローンチする」レッスンは無料ですか？
はい。「SaaSをローンチする」の完全なテキストはこのウェブで無料で読めます。インタラクティブに演習し（組み込みコードエディタと24時間対応のAIチューター）、Vibe Codingコースの残りをアンロックするには、CoddyKit PROにアップグレードしてください。 Vibe Codingコースには全4レッスンが含まれています。
「SaaSをローンチする」で何を学びますか？
プロジェクトを製品へと成長させます。 ブラウザで直接実行するハンズオンコードでVibe Codingを演習し、24時間対応のAIチューターがレッスンを進める中での質問に答えます。
Vibe Codingを始めるのに経験は必要ですか？
事前経験は必要ありません。CoddyKitのVibe Codingは初級者から上級者向けに構成されているため、ここから始めるか最初から始めて、自分のペースで進むことができます。 これはレッスン4/4です。
「SaaSをローンチする」レッスンにはどのくらい時間がかかりますか？
ほとんどのCoddyKitレッスンは約5～10分かかります。各レッスンはコンパクトでインタラクティブなので、着実に進歩し、ウェブとアプリ全体で正確に前回の場所から再開できます。
このVibe Codingレッスンでコードを書いて実行できますか？
はい。すべてのVibe Codingレッスンに組み込みコードエディタが含まれているため、ブラウザでリアルコードを書いて実行し、即座のAIフィードバックを取得できます。ローカル設定は不要です。
このコースのすべてのレッスン
- アイデアからMVPまで素早く
- 実際のユーザーで検証する
- 決済を追加する
- SaaSをローンチする