nowfound

Dev tools · alternatives · 2026

24 alternatives to Reactime

A Time Travel Debugger for React

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

  1. 1

    Chrome extension that helps debug React applications

    2020 · its alternatives →

  2. 2

    Time travel debugging tool, visualizing and tracing state

    2020 · its alternatives →

  3. 3

    Time travel debugging, visualization, and performance tool

    2022 · its alternatives →

  4. 4

    A developer debugging tool for React applications

    2023 · its alternatives →

  5. 5

    Scan your React app for problematic renders and performance

    2024 · react-scan.com · its alternatives →

  6. 6
    Replay▲279

    Your time travel debugger

    2021 · its alternatives →

  7. 7AF
  8. 8BA
  9. 9RG
  10. 10

    Track, allocate, and plan your time

    2016 · its alternatives →

  11. 11FA

    Hey HN, the is Chris, creator of FireDBG. We’ve been working on this debugger just about a year now. Time travel debugging isn’t a new concept, the new idea here is to use call tree visualisation to help us navigate the debug trace. It supports various Linux distros on x64 and macOS on x64 and M1. It’s only available for Rust right now, but we do want to bring this debugging experience to other programming languages. Please give it a try! Would love to know your thoughts. What’s your anecdote in debugging programs? My stupidity is usually in the form of: after a few hours of debugging, I…

    2023 · firedbg.sea-ql.org · its alternatives →

  12. 12AA

    Hello HN! I've recently released and open-sourced a time travel debugging VSCode extension for Python, Javascript & Typescript. https://github.com/dedale-dev/ariana It's born from the pain of spending hours reproducing bugs, struggling to read parallel streams of logging across client/server, and managing print/console.log statements. You can see a short video here: https://www.youtube.com/watch?v=M2gZv7IOo7s Basically its two parts: One part CLI called `ariana` that you install with npm/pip and run alongside your code's run command. For…

    2025 · github.com · its alternatives →

  13. 13CA

    Hey! We are presenting CodeTracer - a user-friendly time-traveling debugger designed to support a wide range of programming languages: https://github.com/metacraft-labs/codetracer?tab=readme-ov-f... CodeTracer records the execution of a program into a sharable self-contained trace file. You can load the produced trace files in a GUI environment that allows you to move forward and backward through the execution and to examine the history of all memory locations. They say a picture is worth a thousand words — well, a video is even better! Watch the demo below to see…

    2025 · github.com · its alternatives →

  14. 14

    Debug React in DevTools: perf, memory & anti‑patterns

    Feb 2026 · npmjs.com · its alternatives →

  15. 15RT
  16. 16
    TimeDay▲148

    your all-in-one focus timer.

    2025 · timeday.framer.website · its alternatives →

  17. 17

    Free 1:1 live chat help for react developers

    2022 · its alternatives →

  18. 18

    Prototyping Tool Exporting React / Typescript Applications

    2019 · its alternatives →

  19. 19TS
  20. 20

    A CLI & OS X app for inspecting ReactJS & React Native apps

    2016 · its alternatives →

  21. 21

    Time tracking that randomly samples you

    2020 · its alternatives →

  22. 22

    Time tracker for developers with a focus on learning

    2019 · its alternatives →

  23. 23

    Discover you only debug 1% of your time

    Oct 2025 · floustate.com · its alternatives →

  24. 24

    Track your activity in the browser

    2019 · its alternatives →

Also compare

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 →