LeanRows is a native, read-only Windows viewer for large row-oriented files. It indexes the file progressively and materializes only the rows in the current viewport, so peak memory is governed by window size rather than file size. Open files share one window as tabs. Supports CSV, TSV, JSONL, NDJSON, log and plain text, sorts a whole file by any column, and opens Excel .xlsx workbooks read-only, with quote-aware record boundaries across read blocks. No telemetry and no network access.
Publisher’s description
What is LeanRows?
LeanRows by Abdulfatah Bahbouh is open-source Windows software in the image viewers category.
Installation and requirements
The publisher provides Portable installers for 64-bit Windows. It runs without installation (portable).
Popularity and file types
The Chocolatey package has been downloaded 50 times. Similar programs include ImageGlass, Weasis and QuickLook.
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Portable: runs without installation
- Updated in the last two months
Cons
- No native ARM64 build
In short: LeanRows is an open-source image viewer tool for 64-bit PCs.
Is LeanRows safe to download?
- The file is served by github.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
584101EEE1522C8B5C80327AA93853B4A8912940F58907673F896B0BCD2DA97E· Open the VirusTotal report for this hash - The link has not been checked yet
- The source code is public
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 1 versions ›| Version | Date | Size | Files |
|---|---|---|---|
| 0.5.0Latest | November 6, 2026 | — | 64-bit ZIP |
Install from the command line
Silent install ›winget install --id abooodbah.LeanRows -echoco install leanrows -yRelated guide: How to use winget: install and update apps
Information
- Publisher
- Abdulfatah Bahbouh
- Category
- Image viewers
- Licence
- MIT
- Price
- Free
- Source code
- github.com
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- Portable
- Version
- 0.5.0
- Released
- November 6, 2026
- Added to the catalogue
- November 7, 2026
- Versions listed
- 1
- Chocolatey downloads
- 50
- Website
- abooodbah.github.io
- winget ID
- abooodbah.LeanRows
- Chocolatey package
- leanrows
Ratings and reviews
No reviews yet. Be the first to rate it.
Alternatives to LeanRows
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Frequently asked questions
Is LeanRows free?
Yes. LeanRows is open-source software under the MIT licence.
Is LeanRows safe to download?
The download comes from github.com, which belongs to the publisher; ExeAtlas does not host or change the file. Compare its SHA256 hash with the one shown here, or open the VirusTotal report for that hash.
How do I install LeanRows with winget?
Open PowerShell or Windows Terminal and run the winget command shown on this page. winget downloads the official installer and checks its SHA256 hash before running it.
Does LeanRows run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Can I use LeanRows without administrator rights?
Yes, it is portable: unpack and run it.
What are alternatives to LeanRows?
ImageGlass, Weasis, QuickLook, MSBuild Structured Log Viewer and JPEGView. The alternatives page compares them.
