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Dev tools · alternatives · 2026

24 alternatives to ReaPer

Analyze and improve your React application's performance.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. ReaPer launched in 2023; newer entries below may have overtaken it.

  1. 1

    Scan your React app for problematic renders and performance

    2024 · react-scan.com · its alternatives →

  2. 2RG
  3. 3

    Reaper is a Chrome (or Chromium) browser extension that terminates browser processes when they use too much CPU. Anything that the browser regards as a process is a potential target. This includes tabs, renderers, subframes, other extensions, and itself. It works on stable channel Chrome for Linux but requires dev channel on Windows, MacOS, or ChromeOS. See README for details.

    2023 · github.com · its alternatives →

  4. 4

    Quickly add payment, messaging, AI agents + more to your app

    2024 · tempo.new · its alternatives →

  5. 5

    React application design and prototyping tool

    2018 · react-proto.github.io · its alternatives →

  6. 6
    Catalyst▲340

    A modern UI kit for React, by the creators of Tailwind CSS

    2025 · tailwindcss.com · its alternatives →

  7. 7TD
  8. 8

    Offline-first, highly scalable foundation for your next app

    2016 · github.com · its alternatives →

  9. 9

    An open source design system for ReactJS

    2019 · atomizecode.com · its alternatives →

  10. 10
    Reshuffle▲173

    The place to share and find live open source code in seconds

    2019 · reshuffle.com · its alternatives →

  11. 11
    Reactful▲312

    Understand your visitors and optimize your site in real time

    2016 · reactful.com · its alternatives →

  12. 12
    Fumadocs▲203

    Beautiful docs. Optimized for React and Next.js.

    2024 · fumadocs.dev · its alternatives →

  13. 13UT

    Entire React code base explanation by visual block schemes (Stack version)

    2017 · bogdan-lyashenko.github.io · its alternatives →

  14. 14
  15. 15
    refine▲236

    Open Source React Framework

    2021 · github.com · its alternatives →

  16. 16

    Hey HN. We’re Jay and Vadim from Highlight.io (https://highlight.io). We’re building an open source [1] monitoring platform for web applications. Today we’re excited to be sharing a performance tool we’ve been working on, which helps you inspect the latency of code execution from the client to the server. As engineers at past startups, we often had to debug slow queries, poor load times, inconsistent errors, etc... While tools like Jaegar [2] helped us inspect server-side performance, we had no way to tie user events to the traces we were inspecting. In other words, although we had…

    2024 · github.com · its alternatives →

  17. 17
    PoemKit▲82

    React toolkit for fast web design and development

    2021 · github.com · its alternatives →

  18. 18RL

    2015 · dariocravero.github.com · its alternatives →

  19. 19

    A free, 24-page zine about making web apps with React.js

    2018 · blog.glitch.com · its alternatives →

  20. 20

    A minimal skeleton for building testable React apps using Babel - pheuter/essential-react

    2015 · github.com · its alternatives →

  21. 21

    A light weight CLI tool for rapid scaffolding of React apps

    2021 · npmjs.com · its alternatives →

  22. 22

    Free 1:1 live chat help for react developers

    2022 · simplydebug.com · its alternatives →

  23. 23

    A simple tool for automating time-tracking.

    2019 · github.com · its alternatives →

  24. 24
    Tremor▲112

    The ReactJS open-source library to build dashboards fast

    2023 · tremor.so · 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 →