
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.

PyQt
PySimpleGUI
MD Python Designer
Kivy
Dear PyGui
BeeWare
GTK
Tkinter is a Python wrapper for Tcl/Tk that offers classes to create various graphical user interfaces.
Which is more popular?
Based on our record, FastAPI should be more popular than Tkinter. It has been mentioned 312 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | fastapi.tiangolo.com | docs.python.org |
| Pricing | — | |
| Company | Startup from Colombia | — |
| Listed in |
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
No analysis of Tkinter yet.
Walkthroughs and reviews on video.
FastAPI from the ground up
More videos
Which is Better Kivy Or Tkinter? - Python Kivy GUI Tutorial #42
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using FastAPI and Tkinter. 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...
It’s a great option for creating simple and easy-to-use graphical user interfaces in Python and allows you to add a GUI to your already working scripts pretty easily. PySimpleGUI wraps the power of 4 different GUI...
Tkinter is a simple library with support for standard layouts and widgets, as well as more complex widgets such as tabbed views & progressbars. Tkinter is a pure GUI library, not a framework. There is no built-in...
Another top Python library for GUI is Tkinter, which is an open-source Python Graphic User Interface library. It is well known for its simplicity and comes pre-installed in Python, meaning there is no work on your...
Recommendations tracked on public social media and blogs since March 2021.


I used FastAPI, a Python framework built specifically for creating APIs quickly, with automatic validation and interactive documentation baked in. - Source: dev.to / about 1 month ago
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 / 4 months ago
We had a feature in production where a single user request could run for five-plus minutes — 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... - Source: dev.to / 5 months ago
Python has sqlite3[0], curses (tui) [1], and tkinter[2] in the stdlib. [0] https://docs.python.org/3/library/sqlite3.html [1] https://docs.python.org/3/library/curses.html [2] https://docs.python.org/3/library/tkinter.html. - Source: Hacker News / 4 months ago
The other popular option for cross-platform UI apps was Tcl/Tk: https://en.wikipedia.org/wiki/Tk_(software) ...which even leaked into other language ecosystems like Python: https://docs.python.org/3/library/tkinter.html. - Source: Hacker News / 6 months ago
ChatGPT understood the hardware and it's limitations, the touchscreen monitor and along with my requirements, we found and used Tkinter which runs on Python. The benefits were it was lightweight, no web stack, runs fast, no browser, no... - Source: dev.to / 9 months ago
When comparing FastAPI and Tkinter, you can also consider the following products.

a microframework for Python based on Werkzeug, Jinja 2 and good intentions.
Compare Flask to FastAPI or Tkinter:


Sinatra inspired web development framework for node.js -- insanely fast, flexible, and simple
Compare ExpressJS to FastAPI or Tkinter:

A simple to use GUI that can create custom GUIs
Compare PySimpleGUI to FastAPI or Tkinter:


A drag and drop GUI Designer that uses a combination of Tkinter and its own code.
Compare MD Python Designer to FastAPI or Tkinter: