21st

21st

21st.dev
+
+

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About

21st is a developer platform that provides the fastest way to add AI agents directly into applications. The platform offers an SDK that allows developers to define, deploy, and run AI agents with minimal infrastructure setup. Developers can integrate agents using popular frameworks such as Next.js, React, TypeScript, Python, and Node.js. 21st includes built-in features like chat interfaces, session history, tool execution, memory, and real-time streaming responses. The platform also manages backend components such as sandboxed execution environments, authentication, rate limits, and observability. With support for Claude Code and Codex runtimes, developers can build agents that interact with tools, files, and APIs securely. By handling infrastructure and deployment automatically, 21st enables teams to launch production-ready AI agents quickly.

About

Next-generation UI editor for individuals and professionals to design and develop beautiful UIs for your embedded devices quickly and easily. Exports platform-independent C or MicroPython code for LVGL which can be compiled for any vendor's device. Just click the play button to try out the UI instantly without rebuilding it in a pixel-perfect preview. Create custom components from the built-in widgets using styles, animations, and events. SquareLine Studio exports plain C or MicroPython code so you can use it on any platform. IoT, smart home and home automation, wearable instruments, automotive, medical devices, and many more. Even for 4K displays in kiosk devices or multi-platform desktop applications. Unlike in other prototyping tools, in SquareLine Studio you can build the UI from fully functional components. SquareLine Studio offers flexible licenses for all use cases, including personal use, startups, and large companies as well.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Software developers, startups, and product teams that want a fast and scalable way to build and deploy AI agents inside their applications

Audience

Individuals and professionals interested in a solution to design, create, and develop UIs for their projects

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version
Free Trial

Pricing

$16 per month
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

21st.dev
21st.dev/

Company Information

SquareLine Studio
squareline.io

Alternatives

Alternatives

EEZ Studio

EEZ Studio

Envox d.o.o.
Storyboard

Storyboard

Crank AMETEK

Categories

Categories

Integrations

C
MicroPython
React
Tailwind CSS
shadcn/ui

Integrations

C
MicroPython
React
Tailwind CSS
shadcn/ui
Claim 21st and update features and information
Claim 21st and update features and information
Claim SquareLine Studio and update features and information
Claim SquareLine Studio and update features and information