The JDK is a development environment for building applications and components using the Java programming language.
Publisher’s description
What is Java(TM) SE Development Kit 21?
Java(TM) SE Development Kit 21 by Oracle Corporation is free Windows software in the languages & sdks category.
Installation and requirements
The publisher provides MSI installers for 64-bit Windows. The main installer is 1 KB. Installation asks for administrator rights. A silent install is possible with the installer’s documented switches. An MSI package is available for deployment with Group Policy, Intune or Configuration Manager.
Updates and version history
The current version is 21.0.12.0, released on June 2, 2026. The version history goes back to July 16, 2024: 9 releases, all linked to the official files. That is about 4.8 releases a year.
Popularity and file types
On Windows it registers 3 file types, including .java, .jar and .class. Similar programs include Go Programming Language, LLVM and Deno.
Pros / Cons
Pros
- Free to use
- MSI package for managed deployment
- Documented silent install
- Small download (1 KB)
Cons
- No native ARM64 build
- Installation needs administrator rights
In short: Java(TM) SE Development Kit 21 is a free languages & sdk tool for 64-bit PCs. It is actively maintained. Administrators can deploy it unattended.
Is Java(TM) SE Development Kit 21 safe to download?
- The file is served by download.oracle.com, the publisher’s own domain
- The download link uses HTTPS
- A SHA256 hash is published, so you can verify the file:
0E15B56FC917F95E0F49478F966E31716054D95A80960FE7E2C36A585F2A5EFD· Open the VirusTotal report for this hash - The link answered when we last checked it (October 24, 2026)
- ExeAtlas does not host, wrap or modify installers
Related guide: How to check a file’s SHA256 hash on Windows
Recent versions
All 9 versions ›9 versions over 2 years · about 4.8 a year
| Version | Date | Size | Files |
|---|---|---|---|
| 21.0.12.0Latest | June 2, 2026 | 1 KB | 64-bit MSI |
| 21.0.11.0 | April 21, 2026 | — | 64-bit MSI |
| 21.0.10.0 | January 20, 2026 | — | 64-bit MSI |
| 21.0.9.0 | October 21, 2025 | — | 64-bit MSI |
| 21.0.8.0 | July 15, 2025 | — | 64-bit MSI |
| 21.0.7.0 | April 15, 2025 | — | 64-bit MSI |
| 21.0.6.0 | January 21, 2025 | — | 64-bit MSI |
| 21.0.5.0 | October 15, 2024 | — | 64-bit MSI |
Install from the command line
Silent install ›winget install --id Oracle.JDK.21 -emsiexec /i jdk-21.0.12_windows-x64_bin.msi /qn /norestartmsiexec /x {4D090225-3565-56C2-8ECB-9153E42067C3} /qn /norestartProgram files (.exe): jar.exe, jarsigner.exe, java.exe, javac.exe, javadoc.exe, javap.exe, javaw.exe, jconsole.exe, jdeprscan.exe, jdeps.exe, jlink.exe, jmod.exe, jps.exe, jshell.exe, jstat.exe, keytool.exe
Related guide: How to use winget: install and update apps
Information
- Publisher
- Oracle Corporation
- Category
- Languages & SDKs
- Licence
- Oracle No-Fee Terms and Conditions
- Price
- Free
- Requires
- Windows 11 / 10
- Architecture
- 64-bit
- Installer
- MSI
- Version
- 21.0.12.0
- Released
- June 2, 2026
- Added to the catalogue
- July 16, 2024
- Versions listed
- 9
- Updates / year
- 4.8
- Website
- oracle.com
- winget ID
- Oracle.JDK.21
- MSI product code
- {4D090225-3565-56C2-8ECB-9153E42067C3}
File types it opens (3)
Ratings and reviews
No reviews yet. Be the first to rate it.
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Frequently asked questions
Is Java(TM) SE Development Kit 21 free?
Yes. Java(TM) SE Development Kit 21 is free to use.
Is Java(TM) SE Development Kit 21 safe to download?
The download comes from download.oracle.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 Java(TM) SE Development Kit 21 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 Java(TM) SE Development Kit 21 be installed silently?
Yes. The silent install page lists the exact command for each installer, including msiexec for the MSI package.
Does Java(TM) SE Development Kit 21 run on ARM (Windows on Arm)?
There is no ARM64 build; Windows 11 on Arm can run the 64-bit version through emulation.
Where can I download an older version of Java(TM) SE Development Kit 21?
The versions page lists all 9 versions with links to their official installer files, back to July 16, 2024.
What are alternatives to Java(TM) SE Development Kit 21?
Go Programming Language, LLVM, Deno, CMake and Yarn. The alternatives page compares them.
