Reflex
@getreflex
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Reflex is the open-source framework empowering Python developers to build web apps. Github: https://t.co/pndl3NYTmL Discord: https://t.co/q4rnWRfJPA
San Francisco, CA
Joined October 2022
Today, we’re excited to announce and launch Reflex Cloud on Product Hunt!. Reflex is an open-source framework for building and deploying data and AI web apps in pure Python. Frontend and Backend in Pure Python: No JavaScript required!. With Reflex Cloud,
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Build a Dashboard App in Python (step-by-step explanation with code):.
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Let's build a RAG app using DeepSeek-R1 running locally (100% Open Source):.
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Build a Sales Dashboard App in Python (step-by-step explanation with code):.
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Build a Customer Data Management Dashboard App with Interactive Visualizations in Python (step-by-step explanation with code):.
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The DeepSeek r1 model is a game-changer for building apps in Python with Reflex!. It has a far better understanding of Reflex compared to 3.5 Sonnet. If you're looking to generate high-quality Python code and build apps with Reflex, you should try it out.
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Let's build an Open Source alternative to Open AI's Operator (100% local):.
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Multi-Agent AI News Assistant using Open AI Swarm and Llama 3.2 running locally on your computer!. Built in Python with Reflex. 100% Open Source
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1. Check out the RAG app we're building!. This app allows you to upload PDF files and chat with them using the DeepSeek-R1 model running locally. Built entirely in Python using Reflex
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Let's build a Multimodal AI Agent using Gemini 2.0 that can understand videos and search the internet at the same time (100% open source):.
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We've just launched our revamped Reflex landing page--built using Reflex of course (code is available on GitHub)! . We've built a few sample apps directly into the page: web form, chat app, image gen, plotting with recharts, and also a spline visualizer.
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🐍 Who needs JavaScript? We rebuilt Wordle entirely in pure Python using @getreflex . From UI to logic, all in one language!.
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1. Before we begin, take a look at the dashboard we're building!. This is an interactive NBA dashboard featuring player stats. The Table tab allows you to display the player data, while the Stats tab visualizes relationships between player stats.
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🚀 Just launched a Python chat app -- even the UI is Python (using Reflex)!. Built with llama 3.2-90b-vision hosted on @togethercompute with @arizeai for observability. Plug in any database with just one line of code! We use @supabase. Details on GitHub:
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Choosing the best Python framework for building your web apps!. In our latest blog, we dive deep into the top Python web development frameworks, comparing Reflex, Django, Flask, Gradio, Streamlit, Dash, and FastAPI. We break down the strengths, weaknesses, and best use cases of
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New Pynecone Chat App is out! Completely customizable + easily hooks up to any llm/api in a few lines of code.
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This is a Python based web app that tracks mouse actions, dynamically updates areas based on user interactions, and displays the real-time position of the mouse on the screen. Built entirely in Python using Reflex!. 100% Open Source. Try it out here:
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🎉 Reflex just hit 20K GitHub stars! 🚀. A huge shoutout to our 160+ contributors and the amazing community behind us. 💪With 4300 PRs and counting, together, we're empowering Python devs to build full-stack web apps with no JavaScript required! 🐍.
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Reflex is launching on product hunt ( April 17th!. For those of you on Product Hunt, we’d love to hear your thoughts and feedback. Support us by clicking the link and selecting notify me to be reminded on our launch day.
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Convert HTML to Reflex!. Have HTML code? Easily turn it into Reflex-compatible Python code using the Flexgen Reverse Compiler. Simply paste your HTML code, and it will be converted into Reflex code. Try it out:
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Who needs JavaScript?. We’ve rebuilt Wordle entirely in pure Python using Reflex!. From UI to logic, all in Python!.
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Create forms in Python using Reflex!. From frontend to backend entirely in Python:
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Add Stunning Icons to your Reflex Projects!. If you're building web apps in pure Python using Reflex and want to enhance them with cool icons, the Reflex Icon Library (RIL) is the way to go. RIL brings thousands of icons from libraries like Font Awesome, Simple Icons, Google's
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Create Forms in Python with Reflex!. Everything from frontend to backend with just a few lines of Python code.
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Launching this Thursday: Reflex Pro, our pro-tier hosting service with a full UI to manage your Reflex apps!. Reflex Pro includes:. • Custom domain names.• Enhanced CPU & memory options.• Multi-region deployments.• Team collaboration features. Below is a sneak peek of how
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The Reflex hosting alpha is now available!. We're offering free hosting for all Reflex apps during our alpha. Just run `reflex deploy` and to share your app with a single command. We're in the early stages, so try it out and let us know your feedback!.
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📣Reflex v0.2.7 is out!🎉. Major features:.-Reduced initial package size by 60%.-Client-side Storage integrated with State.-Added on_mount and on_unmount triggers for all components.-Per-component prop autocompletion for IDEs and breakpoints support.
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Reflex Authentication with Microsoft Azure!. Authentication is critical for internal web applications. While building features is exciting, securing access control is essential. For organizations using Microsoft's ecosystem, this blog post provides a practical guide to
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Reflex Cloud launch on Product Hunt is going well, but we need a bit more love from you all! ❤️. . With Reflex Cloud, you can now deploy, manage, and scale your Python apps with just a single command!
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A year of work is being celebrated today with our official Product Hunt launch 🚀. If you're a Python developer and want to attach a rich frontend to your application and also deploy in a single command - go to the launch page, comment, join the discussion and show your support.
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Reflex v0.6.0 is out! . This release has some updates to vars and var system, separates chakra into a 3rd party package, and other improvements. Full update of the changes from v0.5.0-v0.6.0 here: .
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Creating Charts for Data Analysis and Visualization made simple: Introducing Chart Components by buridian-ui!. Get pre-designed components for Area, Bar, Line, and Pie Charts built in Python with Reflex. Copy and paste to integrate them into your app.
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Big Updates to the Reflex Cloud!. We’ve heard your valuable feedback:. • "My website keeps running out of memory!".• "The Pro plan is too expensive!". Here’s what we’ve done:. • More Memory for All: The default size for apps is now 1 CPU, 1GB RAM (up from 512MB). This applies
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✨Exciting news! For those not following us on GitHub or Discord: Pynecone is rebranding to Reflex! 🚀. New site: Our GitHub: #Python #webdevelopment #pynecone
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We are hiring Software Engineers at Reflex!. If you are passionate about open-source software and interested in joining a fast-paced start-up, please reach out! . More details here:
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Looking to build Python Web Apps in 2025?. Our latest blog compares top frameworks, including Reflex, Django, Flask, Gradio, Streamlit, Dash, and FastAPI. We explore the strengths, weaknesses, and ideal use cases of each framework to help you choose the perfect fit for your
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Build an Interactive dashboard with real-time data visualization! . This dashboard is created using Reflex entirely in Python: . 100% free and open source .
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🚀 Exciting news for the Reflex community! . We've just launched our official forum at . Join us to: .• Stay updated on the latest Reflex features .• Connect with fellow python developers .• Share ideas and get inspired .• Troubleshoot and find.
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2. Backend (State). Build a robust state management system for NBA player data:. - Filter by attributes (team, age, etc.).- Sort by salary, age, or position.- Paginate for smooth navigation.- Generate dynamic chart data for insights. Checkout code snippet:.
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2. Backend State. Define state variables to manage the chat, file uploads, and knowledge base. The setup_llamaindex method initializes LlamaIndex with custom models and a prompt template. It also loads uploaded documents from the folder, indexes them, and sets up a query engine
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Create interactive, high-performance tables in your Reflex apps with Reflex AG Grid . Key advantages of Reflex AG Grid:. • Superior performance with large datasets.• Extensive customization options.• Built-in features like column pinning and row grouping.• Seamless
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We've added 100+ new Lucide icons to Reflex!. You can now use them in your applications with the rx.icon component.
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We've just launched our Awesome-Reflex repo! . 📚Packed with community resources, tutorials, component libraries, and more for building full-stack Python web apps. Check it out here:
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✨Reflex just passed 10k stars on @github last week! We are excited to continue building our awesome open-source community! ✨. Learn more about Reflex here:
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Display static data in an interactive table format!. With Reflex, you can easily use the data_table component to create dynamic and user-friendly tables. Here's an example of how to read data from a CSV file, convert it to a pandas DataFrame, and display it using data_table.
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Reflex 0.6.8 is available now! . Here's what's included:. • Support recursive UI elements with rx.memo.• New EventChain.create API for working with event handlers in JS code.• New State.get_var_value API for accessing the value of a var from another state.• String Var now
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📢Pynecone v0.1.33 is out with some major changes and improvements!.•Easily stream content using yield in event handlers.•Admin Dashboard.•Date/Time Pickers.•Async Events.•Performance Improvements. 👀And much more see here:.
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Reflex is hiring Full-stack engineers 🚀. If you are interested in being an early engineer at a fast-paced, open-source start-up this role is for you!. Please apply using the link below!
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🎉We are thrilled to announce that Pynecone has crossed 5000 stars on GitHub in 2 months from our launch!. We're incredibly grateful to our amazing contributors and supporters who have helped us along the way! #python #opensource #webdev #github
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We're thrilled that Reflex has been named in @Redpoint’s 2024 InfraRed 100 list, which highlights 100 transformative companies in cloud infrastructure. Congratulations to everyone listed!
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Reflex 0.5.8 is available now • Use templates from reflex-dev/templates.• Nicer looking default style for charts and graphs.• Support rx.svg circle, polygon and rect components.• Bug fixes for background tasks, class_name prop, fully controlled inputs.
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Here’s another amazing community project built using Reflex!. Introducing Ryoma: An AI-powered Data Agent framework for data analysis, engineering, and visualization. It also features Ryoma Lab, an app for interacting with your data and AI models through a UI, built entirely in
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Reflex 0.5.0 is available now! . - Bring in Radix 3.0 components, like spinner and skeleton .- New public API methods for wrapping 3rd Party Components Generic throttle and debounce for all event handlers .- Use Alembic batch mode for db make migrations .- Experimental toast.
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With Reflex AG Grid, you can effortlessly create interactive, high-performance tables in your Reflex apps!. Here are some key advantages of Reflex AG Grid:. • Superior performance with large datasets.• Extensive customization options.• Built-in features like column pinning and
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Reflex's styling system gives you the expressiveness of JS and CSS but in pure Python!. 1. Inline styles for precise control.2. Component styles for reusability.3. Globals styles for consistency
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Reflex 0.5.10 is available now - the last release before our next major version 0.6.0!. In this release:.- Move Chakra components to a separate repo (.- Fix various line chart issues.- Validate Toast props.- Use different NPM registry when in china.-.
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v0.6.1 is out! This release includes:.- Regression fixes from v0.5.10.- Optionally run app using Granian instead of Unicorn.- Use your own Node/Bun already-installed runtimes. We also have some pretty interesting experimental features in this release. Checkout out the full.
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Reflex 0.4.0 is now available! This release brings in new core components and a built-in theming system so apps look better out of the box. See our blog for more details:.
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Reflex 0.5.4 is available now:.- App theme appearance defaults to system light/dark setting .- New toast component is available at rx.toast.- Major usability and visual improvements to our graphing components. See the full release notes:
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Thanks to our amazing Python community for backing our Product Hunt launch for Reflex Cloud! ❤️. We ranked #1 Product of the Day yet again! . If you haven't checked out Reflex Cloud yet, here's a quick guide to help you get started:.
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📊✨Introducing our brand-new upgraded graphing library based on Recharts. Read our blog post to learn how you can add interactive graphs to your Reflex apps!
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📢 Reflex v0.2.8 is now out! .Featuring:.- Background events - run jobs in the background without blocking other events. - - an easy way to download files.- Better API to wrap 3rd party React libs. See the full release notes here:
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v0.3.9 is out! In this release: .-Improved hot-reload times in dev mod.-Allow State subclasses to use mixins to define fields.-Improvements to Radix-UI preview components. Full release notes:
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1. Before we begin, take a look at the dashboard we're building!. This interactive dashboard displays customer data and allows you to add, edit, and delete entries in a table. It also visualizes changes in the data over time. Built entirely in Python using Reflex:
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Pyplot Tutorial!. Pyplot (reflex-pyplot), is a graphing library that wraps Matplotlib. Use the Pyplot component to display any Matplotlib plot in your Reflex apps. Check this out:
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Great video showing how to build a full stack @supabase client using Reflex. It goes through everything from setting up an app to deploying it on the Reflex hosting service.
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Updates to the state are getting a whole lot faster in larger reflex apps in v0.4.0 thanks to @masenf. Here is a controlled slider running on a site with over 500+ vars in the state. A before example is in comments. This example is deployed on our hosting service too.
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An awesome collection of UI components in Reflex: buridan-ui. It includes high quality templates for animation, charting, RAG, and more!. Check it out here:
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Reflex v0.3.10 is released today, with commits from 13 different contributors!. * Lucide Icons now available at rx.lucide.icon.* Custom Reflex support directory (REFLEX_DIR).* Better support for native SQLAlchemy models.
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v0.4.6 was Airdropped from 30000' over Nevada . - rx.ComponentState provides simple per-component state.-Use dill instead of cloudpickle.-More compatible package pins.-rx.EventHandler annotation.-Automatic pyi generation for published components
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Reflex v0.3.6 is now available! . * Reflex frontends will only re-render the parts of the page that have changed, rather than rerendering the entire page on each event. * rx.State can now be subclassed multiple times, making it easier to add substates to each page of your app.
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Learn how Bayesline (YC S24), a fintech startup, went from prototype to production by switching from Plotly Dash to @getreflex. Using Reflex, the team achieved:. - 50% less code.- 4x faster development.- $0 spent on frontend engineers. Read more here:
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Learn why @ansacapital, a venture capital firm, chose Reflex over no-code/low-code frameworks for their workflow automation!. Using Reflex, they achieved:. - 16,000 companies scored every month.- 8 core workflows optimized.- 100+ hours of manual work saved monthly. Learn more:
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We spun up a quick Reflex app that lets you stream text input directly into @fluxai_io using @CloudflareDev workers!. Less than 50 lines of code!.
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Hot reloads in Reflex now persist your app state!. We've implemented a new StateManagerDisk that enhances data persistence during hot reloads. Leveraging disk helps with keeping memory usage low!. Key points:.- States are now serialized and stored as pickle files in a dedicated.
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🚀 Join Reflex in the Hacktoberfest Challenge 🌟. We’re thrilled to announce that Reflex is participating in this year's Hacktoberfest, and we want YOU to join the fun! 🎉
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Reflex 0.4.5 is now available!. This release includes some bug fixes along with some new features:.- SEO improvements for all Reflex apps.- Experimental multi-process compilation.- Support for SQLAlchemy Models directly. See full release notes here:
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Reflexity - AI Chat Interface built in Python with Reflex!. Allows you to interact with various AI models through different providers or run completely locally using open-source models. 100% Open Source. Chcekout the code:
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New developer survey is out, let us know how we can improve Reflex!.
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Reflex 0.5.7 is available now * Specify custom frontend and backend exception handlers.* Improvements to recharts components.* Support mutation tracking for SQLAlchemy models.
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Shiki Syntax Highlighter (@antfu7) is coming to @getreflex. Accessible using our experimental namespace! PR below:.
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Revamped Progress Bars! . It’s fully customizable and gives users real-time feedback on tasks or processes. With our themes panel, you can test out different accents and styles on the fly. Check out the docs:.
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Javascript is too hard. Low code is too limiting. Use Python to start building web apps in a language you already know.
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3. Next, let's Handle file uploads & Process questions!. handle_upload method saves files, encodes them, adds to the knowledge base, & initializes LlamaIndex for querying. process_question method fetches streaming answers from LlamaIndex, updating chats in real-time.
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We're planning to release Reflex 0.5.0 in the next few weeks. New changes coming in the next week:.- Core components are upgraded to Radix 3.0.- Base layout components give better out of the box appearance. Our updated roadmap is here:
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Reflex 0.4.7 is now out!. We've added more starter templates to reflex init, including a dashboard and chat app template. You can also use any existing reflex github repo as a template `reflex init --template <github_url>` to build off. See the full release notes:.
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Frontend and backend entirely in Python and 100% Open Source!. Try out the App here: Check out the Code:
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Discover how to manage data seamlessly for tasks like running ML jobs, tracking customers, and more using our new powerful table component features. Perfect for developers and data scientists aiming to boost productivity and efficiency. #WebDevelopment #DataScience
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Reflex is at @CalHacks, stop by our booth! . 🏆Submit a Reflex App at Calhacks to get swag and have a chance to win a $1500 prize🎉
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Let users download files from your Reflex App in just one click using rx. download!. Check this out:
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Native Tailwind CSS support right out of the box! No extra setup needed. 1/3 Setup Tailwind CSS.- embed it directly as a Python dictionary.- import from a file .2/3 Reference it in your app's Reflex config .3/3 Write functions to dynamically create CSS
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Learn how Bayesline (YC S24)--a fintech startup--switched from Plotly Dash to @getreflex.- 50% less code.- 4x faster development.- $0 on frontend engineers. Build production-ready apps in pure Python! 🐍💻.
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