The 7 essential SaaS tools to launch your tech business in 2026
Want to launch your digital business after 40? Here are the 7 SaaS tools I use every day to code, deploy, sell and stay organized — with their free alternatives.
Affiliate disclosure: This article contains affiliate links. If you buy through them, I earn a commission at no extra cost to you. I only recommend tools I use or have tested personally. Learn more about my affiliate policy.
Why these 7 tools?
When I launched my tech business — a developer who reskilled at 44 after 15 years as a homemaker, a solo mom of 3 — I had one simple criterion: does this tool bring me closer to a first euro earned?
Not "is it cool." Not "are the devs on Twitter talking about it." Does it help me build, deploy and sell a digital product?
After months of trial and error (and quite a few abandoned tools), here are the 7 that actually run in my daily life. Each covers a precise need in the chain: organize → code → store → deploy → get paid → communicate.
And each has a free version that's enough to get started.
1. Notion — your business HQ
If you could keep only one tool, it would be Notion.
It's my command center: business roadmap, revenue tracker, editorial calendar, affiliate-program tracking, article ideas, feature backlog… Everything lives in a single workspace.
Why it's essential:
- Total flexibility: relational databases, pages, templates, calendars, kanban boards — you structure it however you want
- Generous free plan: enough for a solopreneur (unlimited pages, 10 guests)
- Templates: thousands of ready-made models to duplicate in one click
- API + automations: connect Notion to Zapier, Make or your own code to automate your workflows
For a tech business after 40, Notion alone replaces Trello, Google Sheets, Evernote and part of ClickUp. One tool instead of four — and fewer open tabs means less mental load.
Available now: my "90-Day Digital Business Roadmap" — a roadmap structured in 3 phases to go from zero to your first digital revenue. → Discover it on Payhip
2. Claude — the AI that codes with you
Claude (by Anthropic) is the tool that changed how I work day to day.
You don't know how to write a regex? Claude generates it. You're stuck on a React bug? You describe the problem in plain English, Claude proposes a solution with an explanation. You want to build a complete API? You describe what you want, Claude writes the code, you fix, you iterate.
What I use concretely:
- Claude Code (in the terminal): to code components, debug, refactor, write tests
- Claude.ai (in conversation): to think through a project's architecture, structure an article, analyze a strategy
- With Cowork: to automate repetitive tasks (files, emails, calendar)
Why Claude over another? The reasoning is more reliable on complex code, the context window is huge (you can hand it an entire project), and Claude Code plugs directly into your terminal workflow.
The free plan is enough to start. The Pro plan ($20/month) is worth it as soon as you code more than 2 hours a day — it's the most profitable investment in this whole list.
3. Supabase — your complete backend in a single service
Supabase is the game-changer for anyone who wants to build a digital product with user accounts.
Before Supabase, you had to assemble separately: a database (PostgreSQL), an authentication system (Auth0), file storage (AWS S3), and serverless functions. With Supabase, it's all in a single dashboard.
What Supabase replaces:
- Database: managed PostgreSQL, with a built-in SQL editor and an auto-generated REST API
- Authentication: sign-up, login, OAuth (Google, GitHub…), session management — in a few lines of code
- File storage: upload of images, documents, with granular access policies
- Edge Functions: server code that runs as close as possible to your users
- Realtime: real-time updates (chat, notifications, live dashboards)
For whom? If you want to build a digital product that goes beyond a simple template — a web app, a tool, a SaaS, a members' area — Supabase is the foundation. The free tier allows 2 active projects with 500 MB of database and 1 GB of storage.
// Create a user account in 3 lines
import { createClient } from '@supabase/supabase-js'
const supabase = createClient(url, key)
const { data, error } = await supabase.auth.signUp({
email: 'user@example.com',
password: 'secure-password',
})
4. Vercel — one-click deployment
Vercel is the go-to deployment platform for Next.js projects (the React framework behind this blog).
You push your code to GitHub. Vercel detects the change, builds the project, and puts it online. That's it.
What I love:
- Preview deployments: each Git branch = a preview URL. You can show a test version to someone before putting it in production
- Built-in analytics: Core Web Vitals, load speed, errors
- Edge Functions: code that runs as close as possible to the user (fast everywhere in the world)
- Hobby plan = free: enough for a blog, a portfolio, or an MVP
If your digital product is a Next.js web app, Vercel is the natural choice. Going to production shifts from "I'm struggling with a server" to "I merge my branch."
5. Stripe — getting paid (the heart of the matter)
No business without payment. Stripe is the infrastructure that lets you collect money online — whether for a one-time purchase or a monthly subscription.
Why Stripe is unavoidable:
- Built-in Checkout: a payment page ready in minutes (even without coding, with Stripe Payment Links)
- Subscriptions: automatic management of renewals, free trials, upgrades/downgrades
- Customer portal: your users manage their own invoices and payment methods
- International payments: 135+ currencies, local payment methods (SEPA, iDEAL, etc.)
- Webhooks: Stripe notifies your app in real time when a payment is received, canceled or failed
The fees: 1.5% + €0.25 per transaction in Europe. No monthly subscription.
6. Resend — clean transactional emails
When someone signs up for your product, they receive a welcome email. When they forget their password, they receive a reset link. When they buy, they receive a confirmation.
Resend handles all of this with a modern API and a clear dashboard.
import { Resend } from 'resend'
const resend = new Resend('re_123456')
await resend.emails.send({
from: 'hello@yoursite.com',
to: 'user@example.com',
subject: 'Welcome!',
html: '<p>Thanks for signing up. Here is your personal space.</p>',
})
Why Resend over SendGrid or Mailgun? The developer experience is incomparable: modern SDK, React Email templates, real-time logs, and transparent pricing. The free tier sends 100 emails/day — more than enough for a launch.
Note: Resend is for transactional emails (tied to a user action). For your marketing newsletter, use a dedicated tool like Brevo (free up to 300 emails/day).
7. Railway / DigitalOcean — backend hosting
Affiliate links — see my affiliate policy.
Supabase covers 80% of backend needs. But there are always cases where you need a custom server: a cron job that sends daily reminders, an API that processes heavy files, a background worker, a microservice that doesn't fit the serverless model, or simply an environment where you control everything.
That's where Railway and DigitalOcean come in — two different approaches to the same need.
Railway — instant deployment, zero config
Railway is the spiritual successor to Heroku. If you want to put a backend in production without touching a single line of server config, this is the tool.
How it works concretely:
- You connect your GitHub repo
- Railway automatically detects the language (Node.js, Python, Go, Rust…)
- You click "Deploy" → your backend is in prod in 90 seconds
What makes the difference:
- Environment variables: one click to add your API keys, database URLs, secrets — no need for a
.envfile on a server - Built-in PostgreSQL / Redis / MySQL: you add a database directly from the dashboard, Railway handles the backups
- Real-time logs: you see exactly what's happening on your server, without SSH
- Automatic scaling: your app adapts to traffic without you touching anything
- Monorepo friendly: if you have a front and a back in the same repo, Railway deploys each service separately
Concrete use cases: a Telegram bot, a REST API, a cron job that scrapes data, a WebSocket server for real-time, a worker that processes images or PDFs in the background.
Price: usage-based. A small project (API + database) comes to ~$5/month. The Hobby plan offers $5 of free credits/month — enough to test.
DigitalOcean — the accessible cloud for real projects
DigitalOcean is the most accessible entry point to the "serious" cloud. Where AWS drowns you in 200 services and an incomprehensible console, DigitalOcean gives you exactly what you need — with a clear interface and exceptional documentation.
The 4 services that matter:
- Droplets (from $4/month): Linux virtual servers. You get full SSH access, you install what you want. It's the basic building block — ideal for a Node.js backend, a Python API, or any custom service.
- App Platform: simplified deployment à la Railway/Vercel, but on DigitalOcean infrastructure. You connect GitHub, you deploy. Perfect if you want Railway's simplicity with DO's power.
- Managed Databases: PostgreSQL, MySQL or Redis managed by DigitalOcean — automatic backups, security updates, one-click scaling. You focus on your code, not on administration.
- Spaces (object storage): the equivalent of AWS S3, compatible with the same API. Store files, images, backups. From $5/month for 250 GB.
DigitalOcean's real strength: the documentation. Their technical tutorials are among the best on the web. "How to set up Node.js on Ubuntu," "How to configure Nginx," "How to deploy a Next.js app" — step-by-step guides, clear, up to date. Even if you don't use their hosting, that documentation is worth the trip.
Which one to choose?
Railway when you want to move fast and focus on the code. DigitalOcean when your project grows and you need more control or solid long-term infrastructure.
Many solopreneurs start on Railway, then migrate to DigitalOcean when the business takes off.
Recap: the 2026 tech business stack
What it covers — and what it costs to start:
- Organization & roadmap → Notion — free
- Code with AI → Claude — free (Pro: $20/month)
- Complete backend (auth, DB, storage) → Supabase — free (2 projects)
- Frontend deployment → Vercel — free (Hobby)
- Payments & subscriptions → Stripe — €0/month + 1.5% per transaction
- Transactional emails → Resend — free (100/day)
- Custom backend hosting → Railway / DigitalOcean — from ~$5/month
Total cost to launch a digital product: €0. Each tool has a free tier sufficient to validate your idea and your first users. You only start paying once your business generates revenue — and at that point, €25–30/month for your entire infrastructure is trivial.
What now?
Tools are only part of the equation. You need an action plan — what to do first, how to monetize, how to keep the pace with your constraints.
To go further, dig into the fundamentals in the Tech section — and build without spreading yourself thin.
You'll find more comparisons and guides in the Tech section.