A startup boilerplate is essentially a pre-written codebase you clone or purchase to avoid redoing everything from scratch each time you launch a company. User registration, payment gateway integration, database, and emails – you will get all of them done for you. This way you can focus on the code that actually brings something special to your startup.
The term itself comes from journalism and newspaper production. In order to reduce costs, newspapers used standardised metal plates to print articles and stories that would run the same way in every issue. Software adopted the term for similar reasons – code that is written once and reused instead of being rewritten each time.
What a Startup Boilerplate Actually Includes
Depending on the particular boilerplate you use, its feature set may vary. However, some common features include:
User sign up, login, and password reset
Payment processing, usually through Stripe
A database already connected and structured
Basic UI components for your dashboard and landing page
Deployment configuration so you can ship without guessing
More elaborate versions have team accounts, roles and permissions, email templates, file uploads. The more there is included in the boilerplate, the less you'll have to develop yourself. However, it also means that more decisions were made for you by default, which is always a compromise.
Why It's More Important for Startups than for Enterprises
While an enterprise could afford a whole month for setting things up, a startup could not. Every week invested in building authentication screens and Stripe webhooks is a week that could be used for interacting with customers and adding that extra feature that would make people actually pay for it.
The founders who miss this math will end up developing the same authentication flow that every other startup developed in that year. This work adds absolutely no value to your business. The only person for whom it does have value is a creator of the boilerplate you did not use.
Free Boilerplate vs Paid Boilerplate
And now we get to the point where you actually have to make a choice.
While free boilerplates offer access to full codebase without license fees, paid boilerplates allow you to leverage someone else's work and expertise on that. In other words, you can see every single line of code for free boilerplate but you won't have much support after the initial setup. If something goes wrong – nobody will explain you what has happened, especially if the developer behind the boilerplate project is inactive at the moment.
Paid boilerplates usually cost you once or monthly and come with additional functionality pre-installed – multi-tenancy, admin panels, billing flows. Also you pay for someone else's time spent on solving those problems.
How Do You Actually Choose One?
4 questions, in order of importance:
What do you need your product to actually do on day one? Don't overpay for multi-tenancy if you're writing a single-user app. Don't underpay for it if you're writing something for teams.
What stack are you familiar with? A boilerplate on a framework you know saves you a lot more time than one on a framework you'll be learning in a month.
Is it maintained? Check the date of the last update and the changelog. An unmaintained boilerplate, even if its demo looked nice, is an unnecessary risk to take.
Can you look into the code yourself or do you have to trust reviews? Open-source boilerplates give you the ability to evaluate their quality. With a closed-source one, you have to trust the authors instead.
A Word of Caution on AI-Generated Boilerplate
Nowadays, it is possible to generate a working application out of a simple English description using an AI tool. And while it's incredibly fast and useful for prototyping, research up to 2026 points at one drawback – the AI-generated code tends to accumulate more technical debt per line than a professional developer's code.
And that is because there is no architectural review done to AI-generated applications, and no maintenance of any kind. While a boilerplate made by a human and maintained by a human has passed all the tests needed in the real world environment multiple times.
Startup Boilerplate Comparison: What the Top Options Actually Include
Talk is cheap. Here is what real startup boilerplates include, based on their own documentation and pricing pages.
A few honest notes on that table, since a comparison only earns trust if it admits tradeoffs.
Kostra's authentication is done internally. This allows avoiding the per-user fees of using some third-party auth provider and does not require you to depend on another company's uptime. However, the disadvantage here is that all the security is now on you.
ShipFast's advantage is in its affordable price and large community of users. The product does not offer multi-tenancy and admin panel, so in case of development for companies, these features should be added.
Both MakerKit and Supastarter are more expensive options than the others on the list but also deserve their price because of having a more complicated and advanced multi-tenancy solution. Moreover, both frameworks have already been used by many projects, which means that their architecture should be studied before work.
Finally, an open-source product is totally free, and you can see every code of it without paying anything. Of course, you will need to install it manually and will have no access to a support hotline in case of any troubles at night.
All of the products above are great in their own way. They help founders of different kinds of apps to cope with some challenges in development.
Why Founders Use a Self-Hosted and One-Time Payment Approach
In this section, I will explain why Kostra has been built the way it was designed. In other words, I will tell what is the real reason for the above-mentioned claims of the founder.
There are no subscription taxes. Some boilerplates in this market have changed their prices to annual ones. In other words, your product becomes a source of constant income for your company.
No dependency on the third-party auth providers. As soon as you have some login system based on the third party, it is obvious that you become dependent on them. Thus, you inherit all their decisions in terms of price, outages, etc.
Stack known by developers. Both PostgreSQL and Prisma do not require your development team to learn any new technologies to start working.
These are the real reasons for choosing this model for the product. Of course, it is not the only way of development, and Kostra may not suit everyone.
Common Mistakes Founders Make When Picking a Boilerplate
There are some common mistakes I've seen many founders doing while selecting the boilerplate. Let me name them explicitly.
Choosing it based on marketing, rather than a demo. Marketing page doesn't say anything about the code. Clone the repository, or at least, visit the demo site, before buying the tool.
Not looking into the maintenance schedule. Visit the changelog of the product. No updates within eight months? This means you will need to maintain the boilerplate yourself in the nearest future.
Overbuying based on current needs. Multi-tenancy, role-based access control, and audit logging is great for a B2B application aimed at enterprise clients. It's absolutely useless if you're trying to validate your basic B2C application.
Underbuying and then hitting a wall in the third month. Just the opposite situation. Basic, single-tenant boilerplate will work perfectly for fast prototyping, but the first request for another user's account in your product will force you to do the refactoring yourself.
Forgetting about licensing terms. There are boilerplates that limit your usage to one project only. And there are tools that can be used for any number of projects. If you're an agency or a serial entrepreneur, it's a difference in the price.
How to Actually Test a Boilerplate Before You Commit
Here is a list of actions that will tell you more about the product than general advices about how to do research.
Clone it and run the code locally. Fifteen minutes will give you much more information than an hour of reading about the boilerplate.
Study the authentication code. It's usually the most critical part of the boilerplate because of security reasons. Unclear code here means a warning sign.
Visit the Stripe integration and check if it handles all edge cases. Do they process failed transactions, subscription cancellations, and plan upgrades? Or do they handle only the happy case of the purchase?
Visit their community/support channel. One-day reply will show you that someone still supports this project. Lack of replies says the opposite.
See what kind of applications were built using it. Every boilerplate provides the list of sample projects. Go to several of them and see if they work.
Signs a Boilerplate Is Overselling Itself
All marketing pages for boilerplates look the same. "Shipped in days, not months." "Saved 40 hours." Some of that is accurate. Some of that is pure copywriting working harder than code.
A few red flags worth looking out for that will help you discern between honest and misleading boilerplates:
List of features that don't show any code. If the marketing page says it does some fancy things, but never once demonstrates how, there is a reason. A decent boilerplate maker shows the code behind their claims.
Testimonials that have no product. Saying "this saved me weeks" is nice, but you should be able to find the actual product that used it. Find boilers that name the product they made.
Ambiguous pricing pages. If you can't find the exact one-off or subscription price without writing an email to the company, then that is unnecessary friction. Good boilerplate marketing pages, either paid or free, will tell you the price on the first screen.
Lack of changelog/roadmap. An active boilerplate maker releases regular changes and shares updates publicly. Lack of those is an indicator of a project becoming inactive, although its marketing pages might not reflect that.
None of this guarantees that a slick-looking marketing page is not a good boilerplate, but it proves that slickness is not proof of quality. Code, changelog, and real-world examples prove that.
What startup boilerplate does is bet on saving developers time on non-profit-generating features. Authentication, billing, and initialization are common problems for almost all businesses. Someone has found an optimal solution for those common problems multiple times.
The boilerplate I would recommend to founders who want self-hosting, a one-time fee, a Postgres and Prisma stack they already know is Kostra. If this isn't your cup of tea and you lean towards another solution from the list above, it's still good news.
What is the difference between a startup boilerplate and a SaaS starter kit?
No difference at all! The terms are equivalent. Both mean a pre-built codebase with auth, payments and database integrated so that you don't have to spend time setting things up.
Do I own the code in a startup boilerplate?
Yes. Most of the boilerplates provide you with the whole source code. You can modify it, change it and deploy it as your own application. What you buy is a base which you will be able to transform into your product.
Is it possible to use a boilerplate for more than one project?
This depends on the license type. The majority of the boilerplates offer per-developer licenses, meaning that once you purchase a license, you may use it for all projects you develop. Team licenses might cost more but allow for sharing the codebase across the development team.
How much time does it take to start working on a boilerplate?
Assuming that you are talking about a paid boilerplate with reasonable documentation, in less than an hour you will be ready to work locally and in one day you will be able to deploy it.
Are free open source boilerplates sufficient for production?
Yes, they are. Our free open source boilerplate, BoxyHQ, is completely production-ready for enterprise identity use cases. The only tradeoff would be in documentation quality and support.
What would happen if Next.js or Stripe would release a new major version?
In case of paid boilerplates with an active author, the author would usually update his/her boilerplate. Otherwise, you would have to update everything by yourself. This is one of the reasons why people pay for their boilerplates.
How can I tell if the boilerplate is still maintained?
The best way is to see the activity in GitHub. If commits were made in the last 30–60 days, then the project is alive. You should also pay attention to the response rate in case of open issues. It means that the author is willing to help but just doesn't make changes often enough.
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