QuickLook — Quick File Preview in Windows 10/11 by Space (Free Download, Plugins and Settings)

QuickLook for Windows is a free tool that adds the familiar “space preview” from macOS to Explorer. Select a file, press Space — and immediately see the contents without opening the program. Works with documents, images, videos, archives and dozens of other formats, and support can be expanded with plugins.

Quick facts

Source: GitHub (license, releases), Microsoft Store (compatibility/restrictions).

What is it and who can benefit from it

QuickLook — “view without opening” right in Explorer. Useful for anyone who works with files every day: designers, editors, developers, accountants, content managers. It takes a split second to understand if it’s the right file without loading Word, Photoshop, media player, etc.

Key Features

• Preview by Space; close by Space or Esc; open in application — Enter.
• Support for many formats out of the box: images (including RAW), PDF/AI, video/audio, HTML, CSV/JSON, EML/MSG, Markdown, etc.
• Navigate between files with arrows when preview is open, zoom with wheel (images) and Ctrl+wheel (PDF).
• Extension of formats via plugins: Office, CAD, Lottie, Jupyter, torrents, EPUB/DjVu via a bundle with SumatraPDF and others.
• Work in third-party file managers (see Wiki), HiDPI support, touchscreen control.

See README (hotkeys) and Wiki (formats/plugins) in the repository.

How to download and install (safely)

1. Download the stable version from the releases page (MSI or ZIP), or install from the Microsoft Store.
2. Recommended option – MSI (full functionality, including preview in the “Open/Save” dialogs). Portable build (ZIP/7z) does not require installation, but before unpacking remove the file lock (Properties → Allow). Store version updates automatically, but with restrictions.
3. Run QuickLook. If desired, enable autorun (tray icon → “Run at startup”).

First launch and basic settings

• Run the application — and that’s it: the combination Space already works in Explorer. Hot keys are fixed in the application and cannot be reassigned via the GUI.
• To disable autoload, uncheck “Run at startup” in the QuickLook icon menu (in the tray).
• Data and cache: for MSI — %APPDATA%\pooi.moe\QuickLook\, for portable (since v3.6.10) — subfolder UserData next to the executable file, for Store — its own sandbox.

Practical scenarios

• Downloads parsing: quickly scroll through PDF, DOCX, ZIP, JPG and immediately delete unnecessary things.
• Photo selection: compare frames with arrows, scale with the wheel without opening the editor.
• Video and subtitles: check the video fragment and .srt compliance in seconds.
• Office documents: add the OfficeViewer plugin — and view DOCX/XLSX/PPTX without launching the office suite (or using installed components).
• Code and markup: see JSON/YAML/Markdown with backlighting, mind-map/Diagram layouts — via corresponding plugins.

Tips and advanced features

• Plugins in 2 clicks: download the .qlplugin file, select it and press Space — the «Install» button will appear. Restart QuickLook. Removal — via the data folder.
• Portable «clean» mode: use the ZIP assembly to leave no traces in the system; user data is stored in the UserData subfolder.
• Hot keys: Space — show/hide; Esc — hide; Enter — open; wheel — zoom (images), Ctrl+wheel — zoom for PDF.
• Preview in third-party managers: useful instructions are in the Wiki for Total Commander, XYplorer, etc.

Limitations and nuances

• Store assembly cannot show selected files in the “Open/Save” dialogs, and is not supported in Windows 10 S. For maximum capabilities, install MSI.
• Format support depends on the codecs/engines in the system (for example, some videos require an installed codec).
• Compatibility with Windows 7/8: official materials are oriented towards Windows 10/11; some directories indicate compatibility with older OS versions — use at your own risk.
• Privacy: the project publishes PRIVACY.md; the application works offline, stores data locally (see paths above).

Alternatives and when to choose another

• Microsoft PowerToys — Peek (Ctrl+Space): a built-in alternative from Microsoft, opens quickly and supports popular formats. If you already use PowerToys, you may not need a separate QuickLook.
• Quick Eye from the Store: similar tasks, but different functionality.
• When to choose QuickLook: you need a preview specifically by Space, a wide format base and expansion via plugins; maximum capabilities without Store limitations.

System requirements

• Windows 10 (version 14316 and above) or Windows 11; PC with keyboard (for space).
• Available assemblies: MSI (installer), ZIP/7z (portable), Microsoft Store (APPX).

FAQ

How to use QuickLook?

Launch the application → select the file → press Space. Pressing Space or Esc again will close the preview window; Enter will open the file in the native program.

Where can I download plugins and how to install them?

The list and instructions are on the Available Plugins page. Download .qlplugin, select it and press Space → «Install». Restart QuickLook.

QuickLook “doesn’t work with space” – what to do?

Check if QuickLook is running (tray icon). If it conflicts with other “key interception” software, temporarily disable that software and restart QuickLook; when installing from the Store, make sure you are using Windows Explorer (for third-party managers, see Wiki).

Is it possible to change the Space key to another one?

There is no graphical reassignment setting; “space” is the main hotkey.

Internal links on the topic

• PDF24 Creator — creating and editing PDF (offline)
• XnView MP — a powerful image viewer
• HEIC → JPG converter (if the files are not open)

Bottom Line. If you need a quick “spacebar preview” in Windows, QuickLook is a great choice: free, multi-format, and plugin-extendable. Install MSI for full functionality, add the plugins you need — and save minutes every hour.