Software Alternatives, Accelerators & Startups

Appsmith VS FastAPI

Compare Appsmith VS FastAPI and see what are their differences

Appsmith logo Appsmith

Appsmith is an open source web framework for building internal tools, admin panels, dashboards, and workflows.

FastAPI logo FastAPI

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
  • Appsmith Landing page
    Landing page //
    2022-07-17

Turn any datasource into an internal app in minutes. Appsmith lets you drag-and-drop UI components to build pages, connect to any API, database or GraphQL source and write logic with JavaScript objects.

  • FastAPI Landing page
    Landing page //
    2023-05-14

Appsmith features and specs

  • Open Source
    Appsmith is an open-source platform, which means it's free to use. Developers can also contribute to its development and customize the platform according to their needs.
  • Easy Integration
    Appsmith allows easy integration with a variety of data sources including REST APIs, databases, and third-party services, making it highly versatile for different applications.
  • Drag-and-Drop Interface
    The platform offers a user-friendly drag-and-drop interface for building dashboards and admin panels, which reduces the time required for development.
  • Pre-built Widgets
    Appsmith comes with a collection of pre-built widgets like tables, charts, and forms, which can be directly used in applications for rapid development.
  • Community Support
    Being an open-source project, Appsmith has a strong community that can provide support, share solutions, and contribute to the platform's growth.

Possible disadvantages of Appsmith

  • Learning Curve
    Despite its user-friendly interface, there is still a learning curve involved, especially for developers who are new to the low-code/no-code paradigm.
  • Performance
    Performance can be an issue with more complex applications or very high data loads, and it may require optimization to ensure smooth functioning.
  • Customization Limitations
    While it offers various customization options, it may not be as flexible or powerful as fully custom-built applications for highly specific requirements.
  • Limited Advanced Features
    The platform may lack some advanced features found in more mature enterprise-level tools, potentially limiting its use for very complex or specific business needs.
  • Hosting and Maintenance
    As an open-source tool, hosting and maintenance are the user's responsibility, which can be a disadvantage for those who prefer a fully managed solution.

FastAPI features and specs

  • High Performance
    Built on Starlette and Pydantic, FastAPI is one of the fastest frameworks for Python, providing high performance due to its asynchronous request handling.
  • Automatic Interactive API Documentation
    FastAPI automatically generates interactive API documentation via Swagger UI and ReDoc, which are very helpful for development and testing.
  • Type Checking and Validation
    With Pydantic models and Python type hints, FastAPI provides automatic data validation and type checking, reducing the chance of runtime errors.
  • Ease of Use
    Its syntax and design make it easy to learn for Python developers, offering a smooth development experience while reducing boilerplate code.
  • Asynchronous Support
    FastAPI supports asynchronous programming, allowing for better performance for I/O-bound operations, making it optimal for handling many simultaneous connections.
  • Extensive Documentation
    It has comprehensive and well-structured documentation, which is very useful for both beginners and advanced users.
  • Community and Ecosystem
    FastAPI has a growing community and ecosystem, with many plugins and integrations available to extend its functionality.

Possible disadvantages of FastAPI

  • Learning Curve for Asynchronous Programming
    Although FastAPI itself is easy to learn, grasping the concepts of asynchronous programming in Python can be challenging for beginners.
  • Complex Dependencies
    Using Pydantic for advanced validation can make the request models complex, requiring a deeper understanding of Pydantic and its functionalities.
  • Early Stage Libraries
    Some third-party libraries and extensions specifically tailored for FastAPI might still be in early stages of development and lack long-term stability.
  • Limited Real-World Examples
    Although the documentation is extensive, there might be limited real-world examples and case studies readily available compared to more mature frameworks.
  • Deployment Complexity
    Deploying FastAPI applications might be more complex in comparison to traditional synchronous frameworks, mainly due to the need for asynchronous server setups.

Analysis of Appsmith

Overall verdict

  • Appsmith is generally considered a good solution for developers looking to create dynamic internal tools with minimal effort and cost. It provides a balance between ease of use and advanced functionality, making it a popular choice among startups, fast-growing companies, and teams with tight resources.

Why this product is good

  • Appsmith is an open-source internal tool builder that empowers developers to quickly create custom applications without the extensive overhead of traditional development. It is appreciated for its flexibility, allowing seamless integration with various data sources and APIs. The drag-and-drop interface and the ability to write custom JavaScript make it both user-friendly and powerful. The platform supports rapid prototyping and iteration, enabling teams to build robust applications efficiently. Additionally, the active community and comprehensive documentation contribute to a supportive development environment.

Recommended for

  • Startups and small businesses needing to develop internal tools quickly and cost-effectively.
  • Teams looking for a user-friendly yet powerful platform for building applications using existing data sources.
  • Developers who prefer open-source solutions with a supportive community and extensive customization options.
  • Organizations looking for an alternative to traditional software development for building internal dashboards and admin panels.

Analysis of FastAPI

Overall verdict

  • FastAPI is widely regarded as a good choice, especially for applications that require high performance, scalability, and modern Python features. It is suitable for both simple and complex projects, making it a versatile tool in the web development ecosystem.

Why this product is good

  • FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. It is built on top of Starlette for web framework capabilities and Pydantic for data validation and settings management. FastAPI is known for its excellent performance, automatic generation of interactive API documentation (with Swagger and Redoc), and support for asynchronous programming. Developers appreciate its ease of use, detailed documentation, and helpful error messages.

Recommended for

  • Developers building RESTful APIs
  • Teams looking for a high-performance ASGI-based web framework
  • Projects that require asynchronous programming capabilities
  • Applications needing automatic generation of interactive API documentation
  • Python developers who prefer utilizing type hints for code clarity and validation

Appsmith videos

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FastAPI videos

FastAPI from the ground up

More videos:

  • Tutorial - 30 Days of Python - Day 14 - Web App with Flask, FastAPI, ngrok, and Invictify - Python TUTORIAL
  • Review - [PT] Python - API com FastAPI - Chat | twitch.tv/codeshow

Category Popularity

0-100% (relative to Appsmith and FastAPI)
Developer Tools
17 17%
83% 83
No Code
100 100%
0% 0
API Tools
0 0%
100% 100
Low Code
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Appsmith and FastAPI

Appsmith Reviews

Top 9 Low-Code Tools for 2023 for low-code development
Appsmith is a low-code platform that empowers users to build business applications and workflows without writing extensive code. It offers a visual interface for designing UIs, integrating data sources, and creating custom logic. With Appsmith, users can connect to databases, APIs, and third-party services, and build dynamic and interactive applications. Its collaborative...
Appsmith vs ILLA Cloud: Comparing Two Low-Code Platforms
Deployment Options: Appsmith offers two deployment options: Appsmith Cloud and self-hosting. Appsmith Cloud is a free hosted service that lets developers start building their apps on any device without any installation or configuration. Self-hosting is a free option that lets developers host Appsmith on their own servers or cloud providers for more control and security.
Appsmith vs. Tooljet: Which Low-Code Platform is Better for You?
In this blog post, we will compare two popular LCDPs for building internal tools: Appsmith and Tooljet. We will also introduce ILLA Cloud, a new and innovative LCDP that offers a viable alternative to Appsmith and Tooljet.

FastAPI Reviews

  1. Kurslog team
    ยท Working at Kurslog ยท

    When our backend team needs to build services for data parsing, aggregators, or high-load APIs, FastAPI is our absolute go-to choice. It completely lives up to its name-development speed is outstanding.

    The combination of Pydantic for data validation and built-in async support keeps our shared codebase clean, strictly typed, and reliable. But the biggest highlight for our cross-functional team is the automatic generation of interactive OpenAPI (Swagger) documentation. Our frontend and mobile developers no longer have to wait for backend engineers to manually update API docs; everything stays perfectly in sync automatically. It has drastically improved our team's communication and delivery speed.

    ๐Ÿ Competitors: Django, Flask, ExpressJS, Nest.js, Spring Boot
    ๐Ÿ‘ Pros:    Blazing fast performance (on par with nodejs and go)|Native asynchronous support out of the box|Automatic, interactive documentation generation (swagger/redoc)|Strict typing and data validation with pydantic
    ๐Ÿ‘Ž Cons:    Smaller plug-and-play ecosystem compared to older frameworks like django|Requires our architects to design the project structure and directory layout from scratch

The 20 Best Laravel Alternatives for Web Development
FastAPI, as the name hints, is a swift mover. Built on Starlette, itโ€™s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now thatโ€™s something.
25 Python Frameworks to Master
Since its release in 2018, it has rapidly gained popularity due to its great performance and simplicity. In fact, according to PyPi Stats, FastAPI has over 9 million monthly downloads, surpassing even full-stack frameworks like Django.
Source: kinsta.com
3 Web Frameworks to Use With Python
myapp/ is the main directory of your FastAPI application. It includes all the other files and directories needed for the application.static/ is a directory used to store static assets such as CSS, JavaScript, and image files. These assets are served directly by the web server and are typically used to add visual styling and interactivity to the application.css/, img/, js/...
Best Alternatives to FastAPI App Free for Windows (2021)
FastAPI Alternative โ€“ So many alternatives app to FastAPI that you must to know out there. And, looking for an ideal software was not easy matter. Lucky you, at this page you can find the best replacement app for FastAPI. So what you are waiting for, get the latest FastAPI alternative app for Windows 10 from this page.
Top 5 Back-End Frameworks to Consider for Web Development in 2021
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints. It is fast when compared to other major Python frameworks like Flask and Django. FastAPI gives great flexibility to fulfill businessesโ€™ API needs in todayโ€™s evolving world.

Social recommendations and mentions

Based on our record, FastAPI seems to be a lot more popular than Appsmith. While we know about 311 links to FastAPI, we've tracked only 6 mentions of Appsmith. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Appsmith mentions (6)

  • Airplane acquired by Airtable and is shutting down
    Founder of Appsmith (https://appsmith.com) here. This is very unfortunate news. I have a lot of respect for the founders & the product. In fact I even used Airplane for a few side projects in the past. It's sad to see the product die. IMO, most folks alluding to them running out money is incorrect. I think they simply ran out of energy or the will to go on. This is very common among early stage companies. But, as... - Source: Hacker News / over 2 years ago
  • Web no-code/low-code tool recommendation? Backend+frontend+analytics and simple to learn
    As well as Appsmith & Retool. They all have generous free tiers, in my opinion. Each can be self-hosted too. Source: over 3 years ago
  • No code platform that can be self-hosted on AWS
    Hello, you can check out Appsmith. It's an open-source platform with all the features you mentioned and it's great for building business apps! Source: over 3 years ago
  • Affordable low code platform for internal tools?
    Appsmith is self hosted right now. Itโ€™s as customizable as Retool, easy as Internal, and less glitchy than Budibase. Tooljet also offers a self hosted version, but Appsmiths dev team updates improvements so much faster. Source: almost 4 years ago
  • February Round-up: New Helm Charts, Product Updates, and Collabs
    If youโ€™ve followed Appsmith for a while, you know that we can do a lot in 30 days! In the second month of 2022, we cleared a few bugs and created an all-new event called How Do I Do X, where many frequently asked questions live. Source: over 4 years ago
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FastAPI mentions (311)

  • Shipping Sovereign SDK: Cryptographic Forensic Receipts and the End of the AI "Prose Tax"
    The Sovereign SDK is a Python-native framework designed to minimize prose overhead while generating ironclad, cryptographic execution receipts for AI agents, complete with drop-in FastAPI/Starlette ASGI middleware. - Source: dev.to / about 2 months ago
  • 5-Minute AI Jobs and Closed Tabs โ€” Why We Built Replay-Then-Tail SSE
    We had a feature in production where a single user request could run for five-plus minutes โ€” fetch documents, chunk them, hit an LLM per chunk, synthesize a final answer. We did the obvious thing first: a FastAPI handler that ran the pipeline and streamed progress back to the browser over Server-Sent Events. - Source: dev.to / 3 months ago
  • FastAPI With LangChain and MongoDB
    FastAPI is a Python framework for building APIs quickly, efficiently, and with very little code. - Source: dev.to / 3 months ago
  • I Built A " CrowdSense AI " : A Scalable, Context-Aware Platform for Smart Stadiums
    Backend: Python-based FastAPI for its asynchronous I/O capabilities and rapid JSON serialization. - Source: dev.to / 3 months ago
  • Async PyMongo in FastAPI
    FastAPI is a high-performance web framework that is production-ready and designed for building APIs in python, with roots embedded in asynchronous programming. It embraces Pythonโ€™s asyncio model as its core principle rather than treating it as optional. This design choice gives FastAPI leverage for I/O bound workloads such as db access, external API calls and real-time data streaming. - Source: dev.to / 3 months ago
View more

What are some alternatives?

When comparing Appsmith and FastAPI, you can also consider the following products

Retool - Build custom internal tools in minutes.

Flask - a microframework for Python based on Werkzeug, Jinja 2 and good intentions.

Budibase - What Wordpress is to websites, Budibase is to web apps. Budibase is a free and open source web app builder for creating, launching and growing web applications. Budibase eliminates repetition and dramatically reduces development time. Check it out.

ExpressJS - Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple

Jet Admin - Build business apps really fast

Django - The Web framework for perfectionists with deadlines