Software Alternatives, Accelerators & Startups

Responsively VS Level Devil

Compare Responsively VS Level Devil and see what are their differences

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Responsively logo Responsively

Develop responsive web-apps 5x faster!

Level Devil logo Level Devil

Play Level Devil and let the seemingly innocent platformer surprise you with devious secrets. Think you can beat these devilish challenges? Prove it!
  • Responsively Landing page
    Landing page //
    2023-10-16

A web browser that aids responsive web app development. Preview all target screens in a single window side-by-side. Brings down your development time. Use your already-familiar dev-tools from the browser. No additional learning curve!

Not present

Responsively

$ Details
free
Platforms
Windows Mac OSX Linux
Release Date
2020 May

Level Devil

$ Details
-
Platforms
-
Release Date
-

Responsively features and specs

  • Multi-device Preview
    Allows simultaneous preview of a website on different device screen sizes, facilitating responsive design testing and debugging.
  • Open Source
    Being an open-source project, it allows for community contributions, transparency, and no licensing fees.
  • Sync Scrolling and Clicks
    Enables synchronized scrolling and clicking across all previews, making it easier to test interactions and layouts uniformly.
  • Customizable Viewports
    Users can add, remove, or adjust predefined viewports to match specific device requirements or test cases.
  • Lightweight and Fast
    Designed to be performant and quick, reducing the overhead on development machines and improving productivity.
  • Cross-platform
    Compatible with multiple operating systems, including Windows, macOS, and Linux, ensuring broader user adoption.

Possible disadvantages of Responsively

  • Limited Browser Support
    May not offer the same level of browser compatibility testing as dedicated tools like BrowserStack or Sauce Labs.
  • Steep Learning Curve
    New users might require some time to get accustomed to the interface and functionalities compared to more straightforward testing tools.
  • Resource Intensive
    Running multiple device previews simultaneously can consume considerable system resources, which might slow down other tasks.
  • No Cloud Integration
    Lacks integration with cloud services for remote testing, unlike some paid alternatives.
  • Dependence on Electron
    As an Electron-based app, it might have a larger memory footprint compared to native applications.

Level Devil features and specs

  • Simple and Addictive Gameplay
    Level Devil features straightforward platformer mechanics that are easy to pick up but hard to master, making it highly addictive for players of all skill levels.
  • Unpredictable Challenges
    The game constantly surprises players with unexpected traps, shifting floors, and moving obstacles that keep the gameplay fresh and exciting throughout each level.
  • Free to Play
    Level Devil is accessible as a free browser-based game, meaning anyone can play it without needing to download software or pay for access.
  • Minimalist Design
    The clean, minimalist art style and simple controls make the game visually appealing and easy to understand without cluttered interfaces or overwhelming graphics.
  • High Replayability
    The difficulty and unpredictable nature of the traps encourage players to replay levels multiple times, providing a satisfying sense of accomplishment when finally completing a tough stage.

Possible disadvantages of Level Devil

  • Extremely Frustrating Difficulty
    The game's reliance on surprise traps and sudden deaths can feel unfair, leading to significant frustration especially for players who prefer skill-based challenges over trial-and-error gameplay.
  • Repetitive Mechanics
    Despite the surprise elements, the core gameplay loop of running, jumping, and dodging traps can become repetitive over extended play sessions with limited variety in mechanics.
  • Limited Content Depth
    As a simple browser game, Level Devil lacks the depth of a full platformer โ€” there are no storylines, character progression, or complex level design elements to keep players engaged long-term.
  • Trial-and-Error Design
    Many traps are nearly impossible to avoid on a first attempt, meaning success often depends on memorization rather than genuine skill, which can feel cheap and unsatisfying.
  • No Save or Progress System
    The game may lack robust save or checkpoint systems, meaning players can lose significant progress and have to redo sections they have already completed, adding to the frustration factor.

Analysis of Level Devil

Overall verdict

  • Level Devil is a solid pick if you enjoy short, trick-filled platformer challenges that test reflexes and pattern recognition rather than deep storytelling or graphics.

Why this product is good

  • Free to play directly in the browser with no downloads required
  • Clever trap-based level design that keeps gameplay unpredictable and engaging
  • Short levels make it easy to pick up and play in quick sessions
  • Trial-and-error mechanics offer a satisfying sense of progression as you learn each stage
  • Lightweight and runs smoothly even on lower-end devices

Recommended for

  • Casual gamers looking for quick, bite-sized challenges
  • Fans of trap and puzzle-platformer games similar to Troll Face Quest or Happy Wheels
  • Players who enjoy trial-and-error style difficulty
  • Anyone wanting a free browser game with no installation needed
  • Users looking to kill a few minutes with light, humorous gameplay

Responsively videos

Responsively App Demo

More videos:

  • Review - Responsively Style Checkboxes, freeCodeCamp Bootstrap Review, lesson 16
  • Review - Line up Form Elements Responsively with Bootstrap, freeCodeCamp Bootstrap Review, lesson 18

Level Devil videos

No Level Devil videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Responsively and Level Devil)
Design Tools
100 100%
0% 0
Game Tools
0 0%
100% 100
Developer Tools
100 100%
0% 0
Free Games
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Responsively and Level Devil

Responsively Reviews

  1. Open source and best
    ๐Ÿ Competitors: Sizzy, Polypane

Level Devil Reviews

We have no reviews of Level Devil yet.
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Social recommendations and mentions

Based on our record, Responsively seems to be more popular. It has been mentiond 46 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Responsively mentions (46)

  • Best Free Tools for Frontend Developers to Speed Up Workflow
    ๐Ÿ” 5. Responsively App Testing responsiveness on multiple devices? Responsively App is an open-source tool that lets you preview your site across devices side-by-side. - Source: dev.to / about 1 year ago
  • Polypane, The browser for ambitious web developers
    To save other readers a click: https://responsively.app/. - Source: Hacker News / over 1 year ago
  • 22 Unique Developer Resources You Should Explore
    URL: https://responsively.app What it does: View your website across multiple devices and screen sizes simultaneously. Why it's great: Perfect for real-time responsive testing โ€” save time and effort! - Source: dev.to / over 1 year ago
  • Responsively App: The Ultimate Tool for Web Developers on Windows
    You can download Responsively App from their official website. - Source: dev.to / over 1 year ago
  • My Hacktober Journey as a Contributor
    Hacktoberfest has been an incredible ride! As a maintainer of the Responsively App, Iโ€™ve had the privilege of witnessing developers come together to support and improve our open-source project. Seeing the growth in contributions this year has been both surprising and inspiring. Itโ€™s been a chance for us to engage with developers who are as excited about improving Responsively as we are. - Source: dev.to / almost 2 years ago
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Level Devil mentions (0)

We have not tracked any mentions of Level Devil yet. Tracking of Level Devil recommendations started around Jul 2025.

What are some alternatives?

When comparing Responsively and Level Devil, you can also consider the following products

Polypane - The browser for ambitious web developers that want to 5ร— their quality and efficiency.

TheForgeCalculator.online - The Forge Calculator for Roblox - Predict weapon classes, armor stats, and trait activations. Discover the best The Forge ores and recipes. Free The Forge prediction tool to optimize your crafting strategy before spending resources in-game.

Sizzy - The browser for designers and developers

Google Chrome - Google Chrome is a fast, secure, and free web browser, built for the modern web. Give it a try on your desktop today.

Google Fonts - Making the web more beautiful, fast, and open through great typography

VS Code - Build and debug modern web and cloud applications, by Microsoft