
Flask
ExpressJS
Django
Yii Framework
Bottle
Ruby on Rails
Laravel
FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

Retool
Budibase
Jet Admin
ToolJet
Bubble.io
Airtable
Softr
Appsmith is an open source web framework for building internal tools, admin panels, dashboards, and workflows.

Which is more popular?
Based on our record, FastAPI seems to be a lot more popular than Appsmith. While we know about 315 links to FastAPI, we've tracked only 6 mentions of Appsmith.
Website, pricing, platforms and company facts side by side.
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| Website | fastapi.tiangolo.com | appsmith.com |
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| Company | Startup from Colombia | — |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of FastAPI yet.
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.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
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FastAPI from the ground up
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using FastAPI and Appsmith. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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...
FastAPI, as the name hints, is a swift mover. Built on Starlette, it’s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now that’s something.
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...
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...
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...
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...
Recommendations tracked on public social media and blogs since March 2021.


Using FastAPI, FastStream, and dishka lets us follow Clean Architecture principles and almost avoid leaky abstractions. The prototype also used Pydantic and SQLAlchemy. I do not focus on them because these technologies are already... - Source: dev.to / 5 days ago
If your FastAPI app talks to a database through SQLAlchemy, chances are high you will meet it sooner or later. Not on your machine, of course. It shows up in production, after a few quiet hours, under load. And the reflex is always the... - Source: dev.to / 12 days ago
API: FastAPI with async SQLAlchemy, PostgreSQL 17 for data, Redis for caching and rate limits. The cache is invalidated by a single version counter bumped on every write: no fine-grained purging to manage. - Source: dev.to / 20 days ago
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.... - Source: Hacker News / almost 3 years ago
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
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
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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.
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