kbCalc is an open source (MIT) floating, translucent calculator with a built-in
Winamp-style MP3 player. It behaves like the classic Windows Standard calculator,
adds an auto-saved mini notepad and calculation history, and the player brings a
real-time visualizer, a 5-band equalizer, named playlists, ID3 tags, podcasts
and internet radio. Czech and English UI.
Publisher’s description
What is kbCalc?
kbCalc is an open-source music player program for Windows from Tengo s.r.o.. It is written in JavaScript.
Installation and requirements
Official installers exist for 64-bit as EXE (NSIS). It can be installed for the current user only, without administrator rights. It needs Windows 10 or newer. The installer supports unattended (silent) installation.
Project description on GitHub: “Open source (MIT) floating calculator with a built-in Winamp-style MP3 player — visualizer, EQ, playlists, podcasts, internet radio (Electron, Win/Linux/mac)”
Pros / Cons
Pros
- Open source: the code can be inspected and built by anyone
- Documented silent install
- Installs without administrator rights
- Updated in the last two months
Cons
- No native ARM64 build
In short: kbCalc is an open-source music player tool for 64-bit PCs. Administrators can deploy it unattended.
Is kbCalc 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:
A7F12FD122FFB3CE22D4FC0954440E5717AAEA5E627628C788B9F2FF1697814D· 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 |
|---|---|---|---|
| 1.1.0Latest | September 1, 2026 | — | 64-bit EXE (NSIS) |
Install from the command line
Silent install ›winget install --id Tengolabs.kbCalc -ekbCalc.Setup.1.1.0.exe /SRelated guide: How to use winget: install and update apps
Information
- Publisher
- Tengo s.r.o.
- Category
- Music players
- Licence
- MIT
- Price
- Free
- Source code
- github.com/tengolabs/kbcalc
- Written in
- JavaScript
- Requires
- Windows 11 / 10 (Windows 10+)
- Architecture
- 64-bit
- Installer
- EXE (NSIS)
- Version
- 1.1.0
- Released
- September 1, 2026
- Added to the catalogue
- September 26, 2026
- Versions listed
- 1
- Website
- github.com
- winget ID
- Tengolabs.kbCalc
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is kbCalc free?
Yes. kbCalc is open-source software under the MIT licence.
Is kbCalc 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 kbCalc 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 kbCalc be installed silently?
Yes. The silent install page lists the exact command for each installer.
Which Windows versions does kbCalc support?
The installer requires Windows 10 or newer and is available for 64-bit.
Does kbCalc 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 kbCalc without administrator rights?
Yes, there is a per-user installer that does not need administrator rights.
What are alternatives to kbCalc?
Spotify, iTunes, FLAC, Mixxx and Clementine. The alternatives page compares them.
