Glasslid for Windows
See a file without opening it.
Select any file in File Explorer and press Space. Documents, photos, video, code and archives appear in an instant. Press Space again, and the preview is gone.
Free for 15 days, then a one-time purchase




Space is the whole interface.
- SpacePreview the selected file. Press it again to close.
- ←→Move through the folder; the preview follows.
- EscStep back out of an archive, then close.
- F11Fill the screen.
Details when you want them.
Open the side panel to see what a file is made of: camera, lens and location for photos, the prompt and settings behind AI images, and the codecs, bitrates and HDR metadata of a video — down to every field MediaInfo reports.

Archives, without unzipping.
ZIP, RAR and 7z files open as a list you can walk with the arrow keys. Pick a file to preview it, and Esc brings you back to the same spot.
Thirty thousand entries open in a quarter of a second.

Tables, code and Markdown, the way you’d read them.
CSV files become tables. Source code gets highlighting and Ctrl+F. Markdown renders with tables, task lists and Mermaid diagrams.


Video that just plays.
Video and audio go through a real player engine, with hardware decoding and instant seeking. 4K and HDR included.
- H.264
- HEVC
- AV1
- VP9
- ProRes
- MPEG-2
- 10-bit HDR
- MKV
- MP4
- MOV
- WebM
- FLAC
- Opus
- E-AC-3
- TrueHD
- DTS
What it opens
| Images | JPEG, PNG, GIF, BMP, TIFF, ICO, WebP, HEIC, AVIF, JPEG XL, camera RAW, Photoshop PSD |
|---|---|
| Video | MP4, MKV, MOV, AVI, WebM, WMV, MPEG-TS and more |
| Audio | MP3, FLAC, WAV, M4A, OGG, Opus, APE and more |
| Documents | PDF, Word, Excel, PowerPoint, Markdown with Mermaid diagrams, SVG, HTML |
| Text | Plain text and source code with highlighting; CSV and TSV as tables |
| Containers | ZIP, RAR and 7z contents, folders, shortcuts |
| Details | Camera and GPS, AI generation parameters, full MediaInfo reports |
Your files stay on your PC.
Glasslid works offline. No account, no telemetry, nothing uploaded.
- System
- Windows 10 (version 2004) or Windows 11, 64-bit
- Price
- One-time purchase, with a 15-day free trial
- Where
- Microsoft Store
- Language
- English
Questions
Does Glasslid need an internet connection?
No. It previews the files on your PC and sends nothing anywhere. The only thing that can reach the internet is a document that itself links to something online, such as an image in a Markdown file; Glasslid loads it the way a browser would.
Can I use a key other than Space?
Yes. In Settings you can record any F-key, or a combination with Ctrl or Alt, as the preview key.
Does it run all the time?
It waits in the system tray, which is why the preview opens instantly, and it starts when you sign in to Windows. You can turn that off in Settings; the preview then works only while Glasslid runs.
What happens when the free trial ends?
After 15 days, Glasslid shows a reminder instead of the preview until you buy it in the Microsoft Store. It’s a one-time purchase, with no subscription.
Is there a light theme?
Yes: Dark and Light, in Settings. This page shows the one that matches your system.
Which files does it open?
Most of what a PC holds: images including camera RAW and PSD, video and audio, PDF and Office documents, Markdown, code and archives. The full list is in What it opens.
Support
Questions, bugs and ideas: hello@orangearcsoft.com