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Welcome to B4X forum!
B4X is a set of simple and powerful cross platform RAD tools:
B4A
(free) - Android development
B4J
(free) - Desktop and Server development
B4i
- iOS development
B4R
(free) - Arduino, ESP8266 and ESP32 development
All developers, with any skill level, are welcome to
join the B4X community
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B4J - Desktop, Server and Raspberry Pi
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[solved] B4J 10.30: jCore library not up to date?
fredo
Jan 27, 2026
Answers
3
Views
464
Jan 27, 2026
Toley
T
D
Hello from Palo Alto Networks
Declan
Jan 23, 2026
Answers
4
Views
635
Jan 24, 2026
Declan
D
Solved
Wait for... Trouble
WizardOz
Jan 22, 2026
Answers
6
Views
577
Jan 23, 2026
LucaMs
Hexadecimal syntax in Select Cases in B4J: &H9E becomes &h9e and causes an error
zed
Jan 22, 2026
Answers
7
Views
629
Jan 23, 2026
zed
How to Download an Image and Preview the Downloaded Parts
xulihang
Jan 21, 2026
Answers
2
Views
382
Jan 22, 2026
xulihang
Standalone Server + AdditionalJar?
ilan
Jan 21, 2026
Answers
6
Views
562
Jan 21, 2026
ilan
D
Debugging desktop UI, B4J versus B4A
Didier99
Jan 12, 2026
Answers
11
Views
1K
Jan 20, 2026
Didier99
D
Solved
Standalone Server + necessary JDK folders?
ilan
Jan 20, 2026
Answers
7
Views
641
Jan 20, 2026
Chris2
C
What is the recommended way to perform a time-consuming task?
xulihang
Jan 20, 2026
Answers
2
Views
346
Jan 20, 2026
xulihang
Solved
Merge PDF (SOLVED)
LGS
Mar 1, 2024
Answers
3
Views
5K
Jan 19, 2026
AHilton
A
P
Solved
Simple Media Manager
Peter Lewis
Jan 14, 2026
Answers
11
Views
967
Jan 17, 2026
bdunkleysmith
Inconsistency in java.util.zip.ZipFile Code Snippet-Doesn't always return folders.
MrKim
Jan 12, 2026
Answers
2
Views
421
Jan 13, 2026
MrKim
P
Solved
Video and Picture View
Peter Lewis
Jan 12, 2026
Answers
1
Views
287
Jan 12, 2026
stevel05
Solved
[PyBridge] Waiting For (Py.Flush) Complete (Success As Boolean) doesn't seem to Wait
William Lancee
Jan 7, 2026
2
Answers
30
Views
2K
Jan 11, 2026
William Lancee
S
Layout Visual Designer - align and size objects?
SparkOut
Jan 9, 2026
Answers
9
Views
588
Jan 11, 2026
SparkOut
S
S
Test
SparkOut
Jan 9, 2026
Answers
1
Views
313
Jan 11, 2026
Erel
D
jSD_OpenMaps - EditingPolygon/EditingPolyline
Davisbc
Jan 7, 2026
Answers
10
Views
938
Jan 10, 2026
Star-Dust
M
Is it possible to read system information (CPU, RAM, temperature) in B4J without external tools?
Mania
Jan 6, 2026
Answers
6
Views
779
Jan 7, 2026
Mania
M
E
How to resize b4xdrawer using code?
eljare24
Dec 23, 2025
Answers
5
Views
618
Jan 5, 2026
aeric
[Web][SithasoDiasy5] eCommerce / Online Store b4xTemplate - Questions & Answers
Mashiane
Jan 2, 2026
Answers
12
Views
1K
Jan 4, 2026
Mashiane
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