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FlashSpace VS Rectangle

Compare FlashSpace VS Rectangle and see what are their differences

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Contents:
  1. ยป Base Details
  2. ยป Videos
  3. ยป Reviews
  4. ยป Alternatives

FlashSpace logo FlashSpace

Ultra-fast virtual workspace manager for macOS, enhancing native Spaces. Supports switching workspaces independently on displays, with hotkey-driven app management, multiple configurations, Picture-in-Picture mode, and SketchyBar integration.

Rectangle logo Rectangle

Window management app based on Spectacle, written in Swift.
  • FlashSpace Landing page
    Landing page //
    2025-06-10
  • Rectangle Landing page
    Landing page //
    2023-05-20

FlashSpace features and specs

  • Open-Source
    FlashSpace is open-source, allowing users to view, modify, and contribute to the code, fostering community collaboration and transparency.
  • Functionality for Flash Games
    FlashSpace provides a means to interact with and manage Flash-based applications, which can be valuable for preserving and using legacy Flash content.
  • Cross-Platform Compatibility
    The project appears to be designed to work across different platforms, making it accessible to a wider audience using various operating systems.

Possible disadvantages of FlashSpace

  • Niche Use-Case
    With the decline of Flash support in modern browsers, the necessity for such a tool is limited to niche applications or legacy projects.
  • Potential Security Risks
    Interacting with Flash content can pose security concerns, as Flash has historically had various vulnerabilities that could be exploited.
  • Maintenance and Updates
    The project might not be actively maintained or frequently updated, which could lead to compatibility issues or unresolved bugs.

Rectangle features and specs

  • Ease of Use
    Rectangle offers an intuitive user interface that makes window management straightforward and user-friendly.
  • Customizable Shortcuts
    Users can easily configure keyboard shortcuts to better suit their workflow, making window management faster and more efficient.
  • Free
    Rectangle is available for free, making it accessible to anyone without the need for a financial investment.
  • Frequent Updates
    The app receives regular updates, introducing new features and ensuring compatibility with the latest macOS versions.
  • Lightweight
    Rectangle is a lightweight application that doesn't consume many system resources, ensuring smooth performance even on older Macs.

Possible disadvantages of Rectangle

  • Limited Advanced Features
    Rectangle lacks some of the more advanced features found in paid window management applications, such as multiple monitor support and more complex window arrangements.
  • MacOS Only
    Rectangle is only available for macOS, so users of other operating systems are unable to take advantage of its features.
  • Occasional Bugs
    Some users report occasional bugs or unpredictable behavior, which might require troubleshooting or waiting for a future update.
  • Learning Curve for Shortcuts
    While customizable shortcuts are a benefit, there is an initial learning curve for users to memorize and effectively use these shortcuts.
  • Basic Aesthetic
    The app's design and aesthetic are quite basic, lacking the polish and visual appeal found in some other similar tools.

Analysis of FlashSpace

Overall verdict

  • FlashSpace is a lightweight, open-source, and free macOS workspace/virtual desktop manager that offers a fast and customizable alternative to macOS's native Spaces, making it a solid choice for users seeking better window and workspace management.

Why this product is good

  • Free and open-source, giving users transparency and no cost
  • Lightweight and fast compared to native macOS Spaces switching
  • Highly customizable with support for keyboard shortcuts and per-app workspace assignments
  • Provides a better multi-monitor and workspace workflow than macOS defaults
  • Actively developed on GitHub with community involvement

Recommended for

  • macOS power users who want faster workspace switching
  • Developers and professionals managing many apps and windows
  • Users frustrated with the slowness of native macOS Spaces
  • People who prefer open-source, customizable productivity tools
  • Multi-monitor setups needing efficient workspace organization

Analysis of Rectangle

Overall verdict

  • Overall, Rectangle is highly regarded for its ease of use, extensive customization options, and the fact that it is free and open-source. It provides essential functionality without unnecessary complexity, making it suitable for both casual users and power users who need efficient window management.

Why this product is good

  • Rectangle is a popular window management tool for macOS, known for its simplicity and ease of use. It allows users to efficiently organize and resize application windows using customizable keyboard shortcuts or by dragging windows into pre-defined areas of the screen. This can enhance productivity by minimizing the time spent arranging windows and improving multitasking capabilities.

Recommended for

    Rectangle is recommended for macOS users looking for a straightforward, lightweight solution to manage application windows. It is particularly beneficial for those who frequently work with multiple applications at once, including developers, designers, and anyone who values a tidy and organized desktop environment.

FlashSpace videos

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Rectangle videos

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SKYWALKER RECTANGLE TRAMPOLINE REVIEW!!!

More videos:

  • Review - Skywalker Rectangle Trampoline Review #1
  • Review - Marvin Malton 160 Rectangle Flying Hour Watch Review

Category Popularity

0-100% (relative to FlashSpace and Rectangle)

FlashSpace

Rectangle

Productivity
100 100%
Productivity
0% 0
Mac Tools
0 0%
Mac Tools
100% 100
Note Taking
100 100%
Note Taking
0% 0
Window Manager
0 0%
Window Manager
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 FlashSpace and Rectangle

FlashSpace Reviews

We have no reviews of FlashSpace yet.
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Rectangle Reviews

Best 6 Mac Window Managers
Rectangle shows that you donโ€™t need to dip into your bank account to get window resizer tools. This free Mac window manager lets you manage multiple windows using keyboard shortcuts, menu options, or by dragging and dropping. Just like Magnet, you can split your screen up into quarters, thirds, or halves.
Source: mackeeper.com
Top 6 Window Manager Apps for Mac
Most window manager apps for Mac support multiple monitors. They can help you move windows between screens and create custom layouts for each monitor. Many window manager apps โ€“ such as BetterSnapTool, Magnet, and Rectangle โ€“ offer this functionality.
Source: www.maketecheasier.com
The 6 Best Mac Window Management Tools
However, it might take some time for you to get used to the shortcuts in the Rectangle app since there are many. Furthermore, you can also add some of your apps to exceptions if you want to keep them away from Rectangle's shortcuts.
Source: www.makeuseof.com

Social recommendations and mentions

Based on our record, Rectangle seems to be more popular. It has been mentiond 479 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.

FlashSpace mentions (0)

We have not tracked any mentions of FlashSpace yet. Tracking of FlashSpace recommendations started around Jun 2025.

Rectangle mentions (479)

  • Ubuntu 26.04 LTS Released
    As a both old Linux and now decade user of MacOS, after I got used to no middle-click paste and no focus-follows-mouse: 1. Keyboard shortcuts are Emacs, Ctrl-A: start of line, E: end of line, K: kill selected or to end of line, Y to paste, etc. https://support.apple.com/en-au/102650#text 2. Karabiner elements (FOSS) fixes keyboard mappings outside of the Settings: https://karabiner-elements.pqrs.org/ 3. I have the... - Source: Hacker News / 4 months ago
  • Native Instant Space Switching on macOS
    Every macOS user uses Rectangle.app โ€” https://rectangleapp.com The ones who don't use it is because they donโ€™t know it exists. - Source: Hacker News / 4 months ago
  • Native Instant Space Switching on macOS
    I use https://rectangleapp.com/ and enjoy it. I have shortcuts to move windows to the left/right half of the screen, and cycle between monitors. This, combined with native cmd+tab and cmd+` is enough for me. - Source: Hacker News / 4 months ago
  • Make macOS consistently bad (unironically)
    Rectangle [1] is pretty much essential for me because of this. I use only a few keypresses (maximize window, move to one of the halves of the screen horizontally) but that is enough. My mouse very rately interacts with the borders of any window, or those buttons. I had to click on the green one that you mentioned in order to see what it did (yuck). [1] https://rectangleapp.com/. - Source: Hacker News / 5 months ago
  • Make macOS consistently bad (unironically)
    I use Rectangle [1] for window management. I only use three shortcuts: full screen, left half of the screen, and right half of the screen. My editors and chrome are always running in one of these modes. But for other apps like Messages, Notes, Music, etc - yeah I don't usually expand them to full screen. [1] https://rectangleapp.com/. - Source: Hacker News / 5 months ago
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What are some alternatives?

When comparing FlashSpace and Rectangle, you can also consider the following products

SpacesforMac.xyz - Declutter your workspace and organize it in 1-click

Magnet Window Manager - Magnet Developers

Spencer for Mac - Customize your workspace with profiles for any context or task โ€” whether youโ€™re working, browsing, or creating. Easily return to your favorite window setup anytime.

yabai - A tiling window manager for macOS based on binary space partitioning

BetterStage.app - BetterStage is a macOS workspace manager for multi-monitor stages, per-monitor layouts, Tabbed Layouts, Snap Wheel/zones, and AI Staging Recipes. Free with 3 stages.

BTT Remote - A remote control for you Mac, using your iPhone or iPad

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