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Tech riderRev. 3 Oct 2026

FlowStorm

Ch 037.2of 27 Debuggers
  1. 1Runs onLinux, Mac, self-hosted, Windows
  2. 2CostsFree plan
  3. 3Supported languagesClojure, ClojureScript
  4. 4Target platformsBrowsers, Node.js, React Native
  5. 5Remote debuggingYes
  6. 6Conditional breakpointsYes
  7. 7Time-travel debuggingYes
7 lines stated Written from the maker's own pages: flow-storm.org
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The FlowStorm homepage

Overview

FlowStorm is ranked #3 of 27 in debuggers on Specifiction. It runs on Linux, macOS, Self-hosted, Windows. There is a free plan.

FlowStorm plans and pricing

All plans
Free and open source Free Free as in speech · no money involved · use it however you like flow-storm.org · 3 Oct 2026

Compared on debuggers

Free plan
Yesflow-storm.org
Supported languages
Clojure, ClojureScriptflow-storm.org
Target platforms
Browsers, Node.js, React Nativeflow-storm.org
Remote debugging
Yesflow-storm.org
Conditional breakpoints
Yesflow-storm.org
Time-travel debugging
Yesflow-storm.org

Facts

What it does
FlowStorm is a tracing debugger for Clojure and ClojureScript.flow-storm.github.io · 3 Oct 2026
Recording
It can record and debug code without adding breakpoints or modifying the code.flow-storm.org · 3 Oct 2026
Stepping and inspection
Its tools include code stepping, value inspection, call stack and function exploration, and exception debugging.flow-storm.github.io · 3 Oct 2026
Visualizations
It supports customizable and real-time data visualizations.flow-storm.org · 3 Oct 2026
Threads
A timeline renders execution events to help users understand how thread instructions interleave.flow-storm.org · 3 Oct 2026
Interactive programming
Values shown in the UI can be sent to the REPL with one click, and recordings can be analyzed using Clojure.flow-storm.org · 3 Oct 2026
Plugins
A plugin system lets users add specialized tools to visualize and interact with recordings.flow-storm.org · 3 Oct 2026
Languages and runtimes
The guide documents Clojure and ClojureScript, including ClojureScript in browsers, Node.js, and React Native.flow-storm.github.io · 3 Oct 2026
Integrations
The guide describes an Emacs front end called Cider Storm and setup instructions for VS Code and IntelliJ IDEA.flow-storm.github.io · 3 Oct 2026
Requirements
The guide lists JDK 17 or later and Clojure 1.10.0 or later as minimum requirements.flow-storm.github.io · 3 Oct 2026
ClojureScript limitation
Vanilla FlowStorm does not currently support async/await introduced in ClojureScript 1.12.145; the guide points to ClojureScriptStorm as an alternative with support.flow-storm.github.io · 3 Oct 2026
Maker attribution
The user guide is attributed to Juan Monetta.flow-storm.github.io · 3 Oct 2026

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Where it ranks on Specifiction

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Sources