Best Fastgen Alternatives - 2025

ToolJet is an open-source low-code framework to build and deploy internal tools and business applications. ToolJet is an open-source alternative to Retool, Mendix, Microsoft Power Apps and Outsystems.

ToolJet is a game-changer for anyone trying to get into web app development or prototyping! I was amazed by how simple it was to use. Even with limited experience with similar softwares, I could quickly build prototypes that felt super complex at first. It’s intuitive, beginner-friendly, and honestly just fun to work with. What I love most is how approachable the community is—they’re always ready to help, no matter how basic or tricky your question is. It’s like having a team of supportive friends who genuinely want you to succeed.

Create powerful APIs, schedule jobs, backend tasks with BuildShip. Connect together any AI model, pre-built workflow nodes, or generate one with AI. Tweak with code (if needed), and deploy instantly in one click. Experience the new way to build & ship!

Neon reimagines Postgres with a serverless architecture. With a generous free tier, scale-to-zero, and true database branching. Copy data and schema in a second and scale resources automatically. Ideal for developers prioritizing scalability and performance.

I have been using it for more than a year now. I have seen people complain that the uptime for Neon is not good. However, in my case, it has always been a reliable database provider, and I have never faced any issues with it. My only complaint was about the pricing; they have switched from usage-based pricing to subscription-based pricing, which seems to be a common trend these days for generating revenue. Although it now charges monthly, it is still affordable for any development team with substantial usage. The way it works under the hood is simply awesome and truly serverless.

4. No-Code Certification

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Get certified in over 40 no-code platforms in just 20 minutes of your time - all in one platform! Present yourself as an expert and showcase your knowledge to win more deals from customers. Credible and trustable certificates: trusted by 56k+ no-code experts!

Promptchains.ai is a revolutionary visual builder for AI workflows, designed to unlock the elusive potential of AI through the art of prompt chaining. Transform complex tasks into intelligent solutions that deliver on the promise of AI.

Finally found the tool for prompt chaining with variables! The product is a bit half-baked but it does the trick

6. CustomJS

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The code-first automation platform to seamlessly create and integrate custom JavaScript logic into any system, allowing you to easily extend your tools. You can write functions like sending emails, generating PDFs or updating data fields in a CRM system.

Our platform simplifies the learning process, starting with easy syntax problems to help beginners gain confidence. Difficulty increases gradually, ensuring a comfortable learning curve.

This beginner friendly concept can help the newcommer to prevent fall into the tutorial hell loop because of the beginner friendly level of the problems.

Flowfy is progressive self-improving low-code/no-code business application development platform.

Apico is an API development platform and proxy which helps you connect with your favorite apps and access their APIs. You can build apps without thinking about OAuth flows, token rotation, security and access controls.

Assess developers' skills by making them create a real microservice. From an empty project to a deployable service that communicates with real databases, message queues, and other microservices, just like the target job. Automatic deployment and evaluation.

Fastgen alternatives

Visual Low-Code Backend Builder