[ 01 ]
Production data, not blog posts
Scores reflect what 200+ shipped projects taught us about hiring, infra cost, and time to ship — not vendor benchmarks.
Source: CodeFormers internal portfolio review Free · No sign-up · 6 questions · ~90 seconds
Technology Stack Finder
Find the best technology for your project in 5 simple steps. Wrong tech choices cost 3-6 months in rewrites — get it right the first time.
- 40+ stacks scored across 10 dimensions
- Bias-checked methodology, vendor-neutral
- Side-by-side recommended vs alternative
[ 02 / HOW WE SCORE ]
Recommendations you can defend in a meeting
Three signals separate this from a stack opinion: where the data comes from, how scores are weighted, and what we don't take money for.
[ 02 ]
Weighted, transparent scoring
Your top 3 priorities are weighted 3·2·1 against each stack's 10-dimension scorecard. The top two stacks plus their gaps are shown — never a single black-box pick.
Algorithm: tsa-v2-engine.ts · open-source[ 03 ]
Vendor-neutral by design
We don't resell licenses or take referral fees. Stacks are weighted equally; recommendations rotate quarterly with new data.
Conflict-of-interest: none disclosed[ 03 / HOW WE SCORE ]
Benchmarks behind the recommendation
Five reference tables we keep up to date — the same dataset that powers the wizard above.
Most recommended stacks by project type (2025)
TECH STACK BENCHMARKS
| Project Type | Frontend | Backend | Database |
|---|---|---|---|
| SaaS B2B | Next.js + React | NestJS / Node.js | PostgreSQL |
| SaaS B2C | Next.js + React | Node.js / NestJS | PostgreSQL |
| E-Commerce | Next.js / Astro | Strapi / NestJS | PostgreSQL |
| Marketplace | Next.js + React | NestJS | PostgreSQL |
| Mobile App | React Native / Flutter | NestJS | PostgreSQL |
| Internal Tool | React + Vite | NestJS / FastAPI | PostgreSQL |
| AI/ML App | React + Next.js | FastAPI / Python | PostgreSQL + pgvector |
| Real-Time | React / Svelte | NestJS + WebSocket | PostgreSQL + Redis |
| CMS / Blog | Astro / Next.js | Strapi / Sanity | PostgreSQL |
Frontend frameworks compared: React vs Angular vs Vue vs Svelte (2025)
FRAMEWORK COMPARISON
| Criterion | Learning Curve | Ecosystem | Talent Pool | Performance | Enterprise Adoption | Dev Cost (PL, /h) |
|---|---|---|---|---|---|---|
| React | Medium | 10/10 | 10/10 | 8/10 | 9/10 | €5K–€8K/mo |
| Angular | High | 8/10 | 7/10 | 7/10 | 10/10 | €6K–€9K/mo |
| Vue.js | Low | 7/10 | 6/10 | 8/10 | 6/10 | €4.5K–€7K/mo |
| Svelte | Low | 5/10 | 4/10 | 10/10 | 3/10 | €5K–€8K/mo |
Backend frameworks compared: Node.js vs Python vs Go vs Java vs .NET (2025)
| Criterion | Learning Curve | Ecosystem | Talent Pool | Performance | Enterprise Adoption | Dev Cost (PL, /h) |
|---|---|---|---|---|---|---|
| Node.js (NestJS) | Medium | 9/10 | 9/10 | 7/10 | 9/10 | €5K–€8K/mo |
| Python (FastAPI) | Low | 10/10 | 10/10 | 6/10 | 7/10 | €5K–€9K/mo |
| Go | Medium | 6/10 | 5/10 | 10/10 | 7/10 | €7K–€11K/mo |
| Java (Spring) | High | 9/10 | 8/10 | 8/10 | 10/10 | €6K–€10K/mo |
| .NET (C#) | High | 8/10 | 7/10 | 8/10 | 10/10 | €6K–€10K/mo |
Average development cost by project type (Poland, 2025)
DEVELOPMENT COSTS
| Project Type | Budget (EUR) | Timeline | Team Size |
|---|---|---|---|
| SaaS B2B | €40K–€120K | 12–20 wk | 3–6 |
| SaaS B2C | €35K–€100K | 10–18 wk | 3–5 |
| E-Commerce | €25K–€80K | 8–16 wk | 2–5 |
| Marketplace | €60K–€180K | 16–28 wk | 4–8 |
| Mobile App | €30K–€100K | 10–20 wk | 2–5 |
| Internal Tool | €15K–€50K | 6–12 wk | 2–3 |
| AI/ML App | €50K–€150K | 12–24 wk | 3–6 |
| Real-Time | €45K–€130K | 12–22 wk | 3–6 |
How to choose a tech stack: 6 factors that matter
DECISION GUIDE
Project type & complexity
Match complexity to tooling — CRUD apps vs real-time collaboration require different stacks.
Scalability requirements
1K vs 1M users demands different database and infrastructure choices.
Team expertise & hiring
React: 13.8M devs, Svelte: 400K devs. Talent pool affects hiring costs and speed.
Time-to-market
Next.js/Supabase: weeks to MVP. Java/Go: faster at scale, slower to start.
Total cost of ownership
Framework is free — developers aren't. Factor hiring rates, infra, and maintenance costs.
AI & future readiness
Python dominates ML/AI. TypeScript catching up with LangChain.js, Vercel AI SDK.
Get Your Tech Stack Report
Personalized technology recommendations with architecture diagrams and migration considerations.
Includes 3-year total cost of ownership comparison
[ 04 / FAQ ]
Frequently asked questions about tech stack selection
What is the best tech stack for a SaaS application in 2025?
For most SaaS applications, we recommend Next.js 15 (frontend) + NestJS (backend) + PostgreSQL (database). This combination gives you server-side rendering for SEO, TypeScript end-to-end for developer productivity, and a database that scales from MVP to millions of users. React has the largest developer talent pool globally (13.8M developers).
How much does it cost to build a web application with React and Node.js in Poland?
A mid-complexity web application built with React + Node.js/NestJS + PostgreSQL costs between €60,000 and €150,000 when developed by a Polish software house (mid/senior rates: €35-60/h). A simple MVP starts at €25,000-50,000. Enterprise-grade applications typically range from €150,000 to €400,000+.
Should I choose React or Angular for my project?
Choose React if you need a large talent pool (13.8M vs 4.2M developers), flexible architecture, and rich ecosystem. Choose Angular if you need a highly opinionated framework for large enterprise teams, built-in dependency injection, and RxJS for complex state management.
What tech stack should I use for an MVP?
For an MVP optimizing for speed-to-market: Next.js + Supabase (BaaS) + Vercel. This gives you authentication, database, storage, and hosting out of the box, with zero backend code needed. Estimated MVP cost: €15,000-35,000. Timeline: 4-8 weeks.
When should I use Python instead of Node.js for my backend?
Use Python (FastAPI or Django) when AI/ML is a core feature of your product, when you need heavy data processing, or when your team is data science-oriented. Use Node.js/NestJS when you need real-time features, TypeScript end-to-end, or rapid API development.
How do I choose between PostgreSQL and MongoDB?
Default to PostgreSQL. It handles relational data, JSON (via JSONB), full-text search, and vector embeddings (pgvector for AI). Use MongoDB only if your data is genuinely schema-less (e.g., IoT sensor data) or if your team has deep MongoDB expertise.
React Native or Flutter for mobile development?
React Native if your team already knows React (70% code reuse with web). Flutter if you need pixel-perfect custom UI, better performance for animations, or building for both mobile and desktop. React Native has a larger talent pool; Flutter has better UI consistency.
How does tech stack choice affect development cost?
Stack choice impacts cost through developer hourly rates (React €40-60/h in Poland vs Elixir €55-80/h), development speed (Next.js ships MVPs 30-40% faster than Java), and infrastructure costs (serverless 60-80% cheaper than Kubernetes for <100K users). Wrong stack adds 20-40% to total cost.
Is it cheaper to use a full-stack JavaScript framework?
Yes. Using TypeScript end-to-end (e.g., Next.js + NestJS) reduces costs by 15-25% compared to mixed stacks (React + Python), because developers can work across the entire codebase and code sharing is possible. The tradeoff: Python has a stronger AI/ML ecosystem.
Can I change my tech stack later?
Partially. Frontend migrations cost 40-70% of original development. Backend migrations cost 60-90%. Database migrations are the most expensive (80-100%+). Invest time choosing your database and backend correctly upfront — frontend is the easiest layer to change.
[ 05 / RELATED TOOLS ]
Related Tools & Resources
Team Cost Calculator Calculate monthly team costs by role and seniority level. Time to Market Calculator Estimate delivery timeline based on team size and project scope. Build vs Buy AI Decision Tool Should you build or buy your AI solution? Get a data-driven answer. Project Estimator Get an instant budget, team, and timeline estimate for your project.
Ready to build?
Talk to an architect — get a sanity check on the stack you picked
30-minute call. We pressure-test the recommendation against your actual constraints — team, deadline, budget — and tell you what we'd swap.