Software Alternatives & Startups

FastAPI VS Kasm

Compare FastAPI VS Kasm and see what are their differences

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.

Rating
5.0 · 1 review
Pricing
Open source Free
Kasm

Kasm Workspaces is a workspace streaming platform for delivering browser, desktop, and application workloads to the web browser.

Rating
0 reviews
Pricing
Open source Freemium Free trial
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, FastAPI seems to be a lot more popular than Kasm. While we know about 318 links to FastAPI, we've tracked only 27 mentions of Kasm.

social mentions
318 vs 27
Developer Tools popularity
100% vs 0%
alternatives listed
240+ vs 129

Base details

Website, pricing, platforms and company facts side by side.

FastAPI
Kasm
Website fastapi.tiangolo.com trust.kasm.com
Pricing
Open source Free
Open source Freemium Free trial Official pricing
Platforms —
Linux Google Chrome Firefox Browser Docker Windows MacOS AWS Azure +6
Company Startup from Colombia 2019
Listed in

About FastAPI and Kasm

In their own words, as submitted to SaaSHub.

FastAPI
Kasm

No description of FastAPI yet.

Kasm is changing the way that businesses deliver digital workspaces using our open-source web-native container streaming technology to establish a modern devops delivery of Desktop as a Service (DaaS), application streaming, and browser isolation. Kasm is not just a service, it is a highly...

Read more about Kasm

Features and specs

What each product offers, as listed by its team.

FastAPI 7 features
Kasm 5 features
  • 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

  • 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.
  • Security
    Kasm provides a secure environment by keeping web browsing and application usage isolated from the local machine, reducing the risk of malware and other security threats.
  • Ease of Deployment
    Kasm offers an easy deployment process, allowing organizations to set up and manage virtualized workspaces quickly.
  • Scalability
    The platform can scale according to the organization's needs, supporting a large number of simultaneous users.
  • Cross-Platform Compatibility
    Kasm supports access from various devices and operating systems, providing flexibility for users.
  • Centralized Management
    Administrators can easily manage and monitor users and workspaces from a centralized console, simplifying administrative tasks.

Analysis

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

FastAPI
Kasm

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

Overall verdict

  • Kasm is considered a good solution for organizations seeking secure, scalable, and flexible browser-based workspaces and application streaming. Its strong emphasis on security, combined with its user-friendly interface and compatibility, makes it a favorable choice for many businesses.

Why this product is good

  • Kasm is a platform that provides containerized workspaces for browser-based web desktops and application streaming. It offers features such as secure access, scalability, and flexibility, making remote work and web application deployment efficient and straightforward. It is particularly noted for its robust security and ease of integration with existing systems.

Recommended for

  • Organizations requiring secure remote access solutions
  • IT professionals looking for scalable deployment options
  • Businesses wanting to streamline application delivery through web-based platforms
  • Teams needing flexible workspace solutions with minimal infrastructure changes

Videos

Walkthroughs and reviews on video.

FastAPI 3 videos + Add
Kasm 3 videos + Add

FastAPI from the ground up

More videos

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

Kasm Workspaces v1.15 Release

More videos

  • - Kasm Workspaces - Configuration and Platform Overview
  • - Kasm Workspaces - Overview

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
FastAPI
Kasm
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
100% 100%

User comments

Share your experience with using FastAPI and Kasm. For example, how are they different and which one is better?

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

FastAPI 5.0 · 1 review
Kasm no reviews yet
  • Rated 5/5 by Kurslog team
    SaaSHub review
    · Apr 2026

    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...

  • The 20 Best Laravel Alternatives for Web Development
    tms-outsource.com · Jan 2024

    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.

  • 25 Python Frameworks to Master
    kinsta.com · Oct 2023

    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...

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We have no reviews of Kasm yet. Be the first one to post

Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

FastAPI 318 mentions
Kasm 27 mentions
  • How to deploy a FastAPI app on Ownkube
    FastAPI is fast to run locally with uvicorn app.main:app --reload, and the production version of that command is not much longer. Production adds three things: a process manager that restarts a crashed worker, config read from... - Source: dev.to / 10 days ago
  • Mémoire des Anciens: The Grimoire of Souls
    Backend: a FastAPI app, started with uvicorn main:app --port 8000. - Source: dev.to / 11 days ago
  • Why I'm building GwinG, a language exchange app for awkward hellos
    Under the hood it's Flutter on the client and FastAPI with PostgreSQL on the server. WebSockets for realtime, WebRTC for calls, object storage for media, and small services for speech and translation. Android, iOS, Windows and Linux. The... - Source: dev.to / 22 days ago

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  • I Want Everything Local – Building My Offline AI Workspace
    Playing with local LLMs is indeed fun. I use Kasm workspaces[0] to run a desktop session with ollama running on the host. Gives me the isolation and lets me experiment with all manner of crazy things (I tried to make a computer-use AI... - Source: Hacker News / over 1 year ago
  • Show HN: Lapdev, a new open-source remote dev environment management software
    Looks like Kasm Workspaces [1] for developers, I'll give it a try. [1] https://kasmweb.com/. - Source: Hacker News / over 2 years ago
  • Calibre Docker installation issue
    [migrations] started [migrations] no migrations found Usermod: no changes ─────────────────────────────────────── ██╗ ███████╗██╗ ██████╗ ██║ ██╔════╝██║██╔═══██╗ ██║ ███████╗██║██║ ██║ ██║ ... Source: almost 3 years ago

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Alternatives to FastAPI and Kasm

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