Run Java applets without installing Java
CheerpJ Applet Runner - Run Java applets without installing Java
With the CheerpJ Applet Runner extension, you can run legacy Java Applets on modern browsers without a Java plugin or a Java installation.
Using the CheerpJ Applet Runner is simple. Just install and pin the extension. Next, visit your Applet-based website, click the extension icon in the upper-right corner of your browser, and then press the 'Enable' button in the popup. Once enabled, the extension is activated for the current domain, and Applets will start automatically if they are present.
This extension works by 'converting' the Java Applet to WebAssembly and JavaScript on the fly. It is private and secure, runs fully client-side (i.e. it does not contact any server), and does not collect any data or analytics at all. All your data, as well as your application are kept within the boundaries of your browser.
This extension, developed by Leaning Technologies, is based on CheerpJ, a JVM/JRE replacement for modern browsers. More information on CheerpJ are available at https://www.cheerpj.com.
This software is free to use for non-business purposes on public-network Applets. For any other use, such as internal network applets, or if you are a company or public-sector organisation and would like to license CheerpJ, please get in touch with [email protected].
Latest reviews
- (2024-06-14) JD Saidi: Doesnt work, the page doesnt load the applet
- (2024-04-23) NewZo: I use this Plugin to program our HPE Switches and some other Network devices and it is working great!
- (2024-03-24) Raheemuddin Mohammed: nice
- (2024-02-29) Ayoub Freag: Some Java Applet works and others don't. I send report to verify how to resolve the problem. Thanks
- (2024-02-04) Gianluca Bonetti: Simply amazing semplicity and effectiveness. Very useful with old switches that only have a Java Applet interface and other similar appliances. Great job!
- (2024-02-01) Robespierre Sentelhas: Some Java Applet works and others don't. I send report to verify how to resolve the problem. Thanks
- (2024-01-04) Alex Prangpratanporn: Super
- (2023-12-12) Rendani Hutagaol: good
- (2023-12-08) PT. Nusa Raya Cipta Tbk.: very good
- (2023-12-07) vanya rudchenko: extension is very good but when im try to start lwjgl applet it hangs on "Extracting: lwjgl_applet.jar.pack to lwjgl_applet.jar"
- (2023-11-20) Master Fire Hero: bien nose sime sirva
- (2023-11-17) Michael Wynn: Does not work when a second window is opened from the original applet, have to kill the browser tab to progress.
- (2023-11-07) Sandor Gyarmati: Fantastic Tool. All my Applets work again. Thank you. Great work!
- (2023-10-18) Wilson Peixoto: Perfeito para meu uso!
- (2023-10-16) Bayumukti Samodra: noice
- (2023-10-11) zegraoui belkacem: Merveille, enfin une solution...
- (2023-09-05) Hanafi Nur Yasin: nice
- (2023-08-09) Nikos Kaseluris: amazing, I run a 2002 applet!!!
- (2023-08-01) Simulation: What could I say! This made my day
- (2023-07-26) C. Sa: This was the online way to work on some premitive website, ty so much
- (2023-06-18) Cardoso Hugo: excelente
- (2023-06-09) Don A. Edwards (clownbrother): Allowed me to get into the Older Allen Bradley 1734-AENT/A units through Chrome! Life-saver!!!!!
- (2023-06-09) Sittisak Boonsanong: good
- (2023-06-02) Muks Kesa: Using it for the 1st time and works. This is a game changer.
- (2023-05-19) Sabrina Ergert: Irgendwas muss ich falsch machen in Google Chrome bekomme ich diese Erweiterung nicht zum laufen aber in Opera funktioniert es einwandfrei. Diese Seite funktioniert in Opera aber in Chrome wird sie weiß angezeigt https://netzwerk.wetter.com/wetterstation/7508/
- (2023-04-16) Craig Reynolds: This is great! I had a set of online “animated diagrams” as Java applets since about 1999. Over the years, support for Java in browsers has disappeared due to security concerns. Now I can see my old applets again: https://www.red3d.com/cwr/steer/Unaligned.html
- (2023-04-15) Mallikarjuna U: good
- (2023-04-08) Fretta: Useless
- (2023-04-07) Sudhashini T: good
- (2023-03-15) david lee: it works
- (2023-03-09) Connor H: This applet runner lets me use obsolete networking hardware that requires java web applets to function. Absolute lifesaver for the home network.
- (2023-02-18) José Rama: No Muy rápido pero cargo de primera las simulaciones de http://www.sc.ehu.es/sbweb/fisica/ Genial !!
- (2023-02-12) Mustaf Jonuzi: Great
- (2023-01-17) Darpz: lort
- (2022-12-29) Agus Wahendra: Excelent...
- (2022-11-09) Amornrat Laowkleangdee: super
- (2022-10-19) Petr Kulhanek: Super!
- (2022-09-28) Steffen Musekamp: Günstigen Switch(ProCurve-2900-48G) Geschossen und nun kann ich ihn voll bedienen! Vielen Dank !!!!!!!!
- (2022-09-23) Srinivas Mankala: It's perfect solution for our forms
- (2022-09-19) Mario B: Great tool, and very important discovery that i found it, i'm using it to view the great interactive Java geometry applet on the website cut-the-knot.org. thank you very much.
- (2022-09-03) María Salome Xicohtencatl: Me la han recomendado ...la voy a probar :)
- (2022-08-31) KentuckyFryedStalin: its pretty amazing, dont get me wrong. i have noticed some issues when an applet makes use of the older sun audio libraries. stuttering and the such. other than that, it got a game i haven't seen in ten years up and running again in the blink of an eye
- (2022-08-18) Solimar França Baisi: Excelente
- (2022-07-09) Pasha Emshanov: Simplest way to make java web applets work, thank you!
- (2022-06-01) Димитър Димитров: very usefull for old sites
- (2022-05-19) Mark Grant: Runs my old math geometry items. Thanks Mathologer for the info!
- (2022-05-17) Uri Kaluzhny: Awesome work!
- (2022-05-14) James Athappilly: With no effort, we were able to bring an old java applet back to life. This was so easy to use!
- (2022-05-13) Don Corleone: 2eedddf
- (2022-03-19) Al Fargnoli: It has stopped working for me.