Logtalk is an object-oriented logic programming language that extends and leverages the Prolog language with a feature set suitable for programming in the large. It provides support for encapsulation and data hiding, separation of concerns and enhanced code reuse. Logtalk uses standard Prolog syntax with the addition of a few operators and directives.
The Logtalk language implementation is distributed under an open source license and can run using a Prolog implementation (compliant with official and de facto standards) as the back-end compiler.
Logtalk aims to bring together the advantages of object-oriented programming and logic programming. Object-orientation emphasizes developing discrete, reusable units of software, while logic programming emphasizes representing the knowledge of each object in a declarative way.
As an object-oriented programming language, Logtalk's major features include support for both classes (with optional metaclasses) and prototypes, parametric objects, protocols (interfaces), categories (components, aspects, hot patching), multiple inheritance, public/protected/private inheritance, event-driven programming, high-level multi-threading programming, reflection, and automatic generation of documentation.
What is Logtalk?
Logtalk by Logtalk.org is open-source Windows software in the ides & code editors category. It ranks 40th by popularity among ides & code editors in this catalogue. The first release dates back to 1998. It is written in Prolog.
Installation and requirements
The publisher provides EXE (Inno Setup) installers for Any CPU Windows. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches.
Updates and version history
The current version is 3.102.0, released on September 14, 2026. The version history goes back to August 31, 2021: 55 releases, all linked to the official files. That is about 11 releases a year.
Popularity and file types
The Chocolatey package has been downloaded 8,854 times. The source code on GitHub (LogtalkDotOrg/logtalk3) has 496 stars. Wikipedia has an article about it in 4 of our languages. On Windows it registers 2 file types, including .lgt and .logtalk. Similar programs include OpenCode, RStudio and Node.js (LTS).
Project description on GitHub: “Logtalk - declarative object-oriented logic programming language”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Frequent updates (about 11 a year)
- Mature project (since 1998)
Cons
- Installation needs administrator rights
In short: Logtalk is an open-source ides & code editor tool for Any CPU PCs. It is actively maintained. Administrators can deploy it unattended.
Is Logtalk safe to download?
- The file is served by logtalk.org, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
334F790AF6D5F1156B867F2BA51D85FCC0CE103CA8070DE116155A7FB43A104B· 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 55 versions ›55 versions over 5 years · about 11 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 3.102.0Latest | September 14, 2026 | — | Any CPU EXE (Inno Setup) |
| 3.101.0 | July 23, 2026 | — | Any CPU EXE (Inno Setup) |
| 3.100.1 | May 16, 2026 | — | Any CPU EXE (Inno Setup) |
| 3.100.0 | May 14, 2026 | — | Any CPU EXE (Inno Setup) |
| 3.99.0 | April 9, 2026 | — | Any CPU EXE (Inno Setup) |
| 3.98.0 | February 27, 2026 | — | Any CPU EXE (Inno Setup) |
| 3.97.1 | December 30, 2025 | — | Any CPU EXE (Inno Setup) |
| 3.97.0 | December 22, 2025 | — | Any CPU EXE (Inno Setup) |
Install from the command line
Silent install ›winget install --id Logtalk.Logtalk -echoco install logtalk -ylogtalk-3.102.0.exe /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-Related guide: How to use winget: install and update apps
Also for other systems
brew install logtalkInformation
- Publisher
- Logtalk.org
- Category
- IDEs & code editors
- Licence
- Apache-2.0
- Price
- Free
- Source code
- github.com/LogtalkDotOrg/logtalk3
- Written in
- Prolog
- Requires
- Windows 11 / 10
- Architecture
- Any CPU
- Installer
- EXE (Inno Setup)
- Version
- 3.102.0
- Released
- September 14, 2026
- First release
- 1998
- Added to the catalogue
- September 24, 2021
- Versions listed
- 55
- Updates / year
- 10.9
- Chocolatey downloads
- 8,854
- GitHub stars
- 496
- GitHub forks
- 34
- Website
- logtalk.org
- winget ID
- Logtalk.Logtalk
- Chocolatey package
- logtalk
File types it opens (2)
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Logtalk free?
Yes. Logtalk is open-source software under the Apache-2.0 licence.
Is Logtalk safe to download?
The download comes from logtalk.org, 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 Logtalk 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.
Can Logtalk be installed silently?
Yes. The silent install page lists the exact command for each installer.
Does Logtalk run on ARM (Windows on Arm)?
The installer is architecture-neutral.
Where can I download an older version of Logtalk?
The versions page lists all 55 versions with links to their official installer files, back to August 31, 2021.
What are alternatives to Logtalk?
OpenCode, RStudio, Node.js (LTS), Apache NetBeans and Haxe. The alternatives page compares them.
