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Dev tools · alternatives · 2026

24 alternatives to FlexerApp

Design web and mobile applications and generate code.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. FlexerApp launched in 2019; newer entries below may have overtaken it.

  1. 1
    Flex▲325

    Flexbox's are a pain to write, Flex makes it easy.

    2019 · its alternatives →

  2. 2

    Build flexible, responsive layouts - without writing code

    2016 · flexbox.webflow.com · its alternatives →

  3. 3

    Build awesome user interfaces with CSS flexbox

    2016 · flexboxpatterns.com · its alternatives →

  4. 4
    21st.dev▲1,211

    I originally built this app to organize and reuse interesting React + Tailwind components I came across on Twitter, inspired by the shadcn/ui approach. Later, a friend started contributing their own components, and it got me thinking—this could grow into something bigger, like an NPM for design engineers to share and use components. Would love to hear your thoughts!

    2025 · 21st.dev · its alternatives →

  5. 5

    we built sleek.design: you describe your app idea and it generates mobile mockups designs. it is possible to export them into html, react or figma. it is also possible to get a prompt that can be pasted into bolt and will generate the actual app starting from the design created. this is our third huge pivot and honestly the last shot we're giving ourselves. quick backstory: we're 3 bootstrapped builders. launched about a year ago with what's now on v1.reweb.so, basically a visual builder for nextjs/tailwind/shadcn. it went pretty viral and started growing, but we couldn't get past…

    Nov 2025 · sleek.design · its alternatives →

  6. 6

    Build native mobile experiences with Javascript

    2015 · github.com · its alternatives →

  7. 7SW

    Experiment with different flex properties to understand how they affect layout. Adjust the controls below to see changes in real-time and copy the generated CSS code.

    2025 · yoavsbg.github.io · its alternatives →

  8. 8

    Turn your ideas into mobile apps without writing any code

    2025 · bolt.new · its alternatives →

  9. 9

    A notebook for building interfaces with Tailwind & shadcn/UI

    2024 · layouts.dev · its alternatives →

  10. 10

    Create, maintain, publish web & mobile UIs — without coding

    2019 · medusa-motorsports.com · its alternatives →

  11. 11

    A framework to build Native Mobile apps using JavaScript.

    2018 · vue-native.io · its alternatives →

  12. 12
    a0.dev▲479

    Generate full mobile apps with AI

    2025 · a0.dev · its alternatives →

  13. 13

    Pre-built UI for no-code apps

    2022 · bubble.io · its alternatives →

  14. 14

    Mobile Application Template built with React Native

    2018 · reactnativestarter.com · its alternatives →

  15. 15

    Mobile first, accessible components for React Native & Web

    2021 · nativebase.io · its alternatives →

  16. 16

    The better way to build frontend for your products

    2022 · its alternatives →

  17. 17

    Create React Native, cross-platform mobile apps easily

    2017 · shoutem.com · its alternatives →

  18. 18
    Quarkly▲184

    Design tool to create sites & web apps on React

    2020 · quarkly.io · its alternatives →

  19. 19

    React codebase for building desktop and mobile apps quickly

    2022 · its alternatives →

  20. 20BR
  21. 21FA
  22. 22
    Adalo 2.0▲189

    Build your app once, publish it anywhere

    2023 · adalo.com · its alternatives →

  23. 23

    3600+ responsive web app UI components for Figma

    2021 · uxbin.com · its alternatives →

  24. 24

    The needs of app developers all around for better work tools the world give way to progress. On the UI Frameworks front, one toolkit proves useful.

    2014 · touchstonejs.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →