Quokka.js
UnclaimedRun JavaScript and TypeScript with instant feedback directly in your code editor.
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TL;DR - Quokka.js
- Provides instant JavaScript/TypeScript feedback directly in your editor.
- Displays runtime values, errors, and code coverage inline as you type.
- Offers advanced debugging features like Time Machine, Value Graphs, and Logpoints.
Pricing: Free plan available
Best for: Growing teams
Pros & Cons
Pros
- Instant feedback and real-time execution in the editor.
- Reduces context switching by integrating with popular IDEs.
- Powerful debugging and exploration features (Time Machine, Value Graphs).
- Free Community edition available.
- No configuration required for basic use.
Cons
- Advanced features are locked behind the Pro (commercial) edition.
- May have a learning curve for some advanced features.
Key Features
Live Execution and ResultsLive Coverage IndicatorsSnaps (context-aware code snippets)Interactive Runtime Value GraphsLogpointsTime MachineInteractive TimelineCodeclip Share feature
Pricing Plans
Community Free Edition
Free
- Live Code Execution and Results
- Time Machine
- Live Code Coverage
- Basic Value Explorer
- Basic Interactive Value Graphs
- Bun
- Recent Files
- Codeclip
- Interactive Examples
Personal Pro
Contact us
- Live Code Execution and Results
- Time Machine
- Live Code Coverage
- Basic Value Explorer
- Basic Interactive Value Graphs
- Bun
- Recent Files
- Codeclip
- Interactive Examples
- Project Files Import
- Snaps (in JS, TS, Vue, and Svelte files)
- Logpoints and Live Value Display
- Value Peek
- Live Comments
- Value Explorer Pro
- Interactive Value Graphs Pro
- Interactive Timeline
- Code Story Viewer
- Quick Package Install
- CPU Profiler
- Run on Save/Run on Demand
Company Pro
Contact us
- Live Code Execution and Results
- Time Machine
- Live Code Coverage
- Basic Value Explorer
- Basic Interactive Value Graphs
- Bun
- Recent Files
- Codeclip
- Interactive Examples
- Project Files Import
- Snaps (in JS, TS, Vue, and Svelte files)
- Logpoints and Live Value Display
- Value Peek
- Live Comments
- Value Explorer Pro
- Interactive Value Graphs Pro
- Interactive Timeline
- Code Story Viewer
- Quick Package Install
- CPU Profiler
- Run on Save/Run on Demand
Enterprise Pro
Contact us
- Live Code Execution and Results
- Time Machine
- Live Code Coverage
- Basic Value Explorer
- Basic Interactive Value Graphs
- Bun
- Recent Files
- Codeclip
- Interactive Examples
- Project Files Import
- Snaps (in JS, TS, Vue, and Svelte files)
- Logpoints and Live Value Display
- Value Peek
- Live Comments
- Value Explorer Pro
- Interactive Value Graphs Pro
- Interactive Timeline
- Code Story Viewer
- Quick Package Install
- CPU Profiler
- Run on Save/Run on Demand
About Quokka.js
By Toolradar Team·
Quokka.js is an in-editor playground for JavaScript and TypeScript that provides instant feedback on your code as you type. It eliminates the need for context switching by running directly within popular IDEs like VS Code, WebStorm, and Sublime, allowing developers to experiment, learn, and test code without leaving their familiar environment. It's designed for developers who want to quickly try out ideas, debug, or understand code execution without the overhead of setting up bespoke configuration files or using external online REPLs.
The tool offers real-time execution, displaying runtime values, errors, and code coverage inline. It leverages the same advanced technology as Wallaby.js, making years of research in JavaScript code instrumentation and execution available to users. Quokka.js is ideal for rapid prototyping, learning new language features, and debugging complex logic by visualizing data structures, tracking code execution over time, and exploring values interactively.
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Quokka.js FAQ
How does Quokka.js provide instant feedback on runtime values?
Quokka.js displays runtime values directly in your editor as you type. This includes inline console logs, identifier expression values, and error messages shown next to the code that caused them.
What is the primary difference between Quokka.js and online REPL tools?
Unlike online REPL tools, Quokka.js runs your JavaScript code within your existing editor environment (VS Code, WebStorm, Sublime). This allows you to leverage your familiar setup and extensions without context switching.
Can Quokka.js be used with specific JavaScript frameworks or file types beyond standard .js and .ts files?
Yes, Quokka.js supports executing context-aware code snippets (Snaps) directly in your editor within various project files, including Vue.js single file components and Svelte files, even if your application or tests are not fully functional.
What advanced debugging capabilities does the 'Pro' edition offer for exploring data structures and code execution?
The 'Pro' edition includes Interactive Value Graphs to visually explore complex data structures, a Time Machine to move forwards and backwards through code execution, and an Interactive Timeline to visualize function transitions, logs, and errors.
How does Quokka.js assist in analyzing code performance?
Quokka.js includes a CPU Profiler that allows you to record and analyze the CPU usage profile of your code. This helps in identifying performance bottlenecks within your JavaScript or TypeScript.
Is it possible to share Quokka.js code and its execution results with others?
Yes, the Codeclip Share feature allows you to upload and share your Quokka.js code, its output, and Time Machine recordings. You can review and adjust settings before publishing the shared content.
Source: quokkajs.com