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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
.
You are all welcome to join our new Facebook page:
https://www.facebook.com/groups/b4x.developers
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B4X Programming Forum
New Posts
B4A - Android
Android Questions
Please post any technical question in this forum.
Threads
73.7K
Messages
424.8K
Sub-forums
Sub-forums
Libraries developers questions
Messages
424.8K
Android Question
Looking for a program, or help writing it. Below possible?
Today at 7:45 PM
drgottjr
Tutorials & Examples
Android development starts here.
Please do not post questions in this sub-forum.
Threads
1.3K
Messages
28.8K
Messages
28.8K
Android Example
MidiSystem Midi Monitor
Wednesday at 7:52 PM
stevel05
Additional libraries, classes and official updates
Users contributed libraries, classes and official updates.
Threads
2.3K
Messages
69.6K
Sub-forums
Sub-forums
Old Libraries Archive
Messages
69.6K
W
Tool
B4Xgoodies: a maintained library/class/code module/... inventory (last updated 2025-07-19)
Today at 9:09 AM
walt61
Code Snippets
A place to share useful code snippets.
Threads
855
Messages
4.6K
Messages
4.6K
Android Code Snippet
Back to edge-to-edge with B4A Ver13.4 and SDK 35
Today at 1:12 AM
Matt S.
Bugs & wishlist
The place to discuss bugs and missing features.
Threads
6.2K
Messages
26.9K
Messages
26.9K
Wish
Constants of PhoneSensors
Yesterday at 2:04 PM
LucaMs
Share Your Creations
Threads
2.1K
Messages
15.2K
Messages
15.2K
Share My Creation
[B4X] Video Conference, Audio, Text Chat app - meet@point - Source Code only 20€
Today at 2:34 PM
Magma
B4i - iOS
iOS Questions
Threads
10.1K
Messages
53.1K
Messages
53.1K
B
iOS Question
Closing the DatePicker panel
Today at 4:50 PM
BanditMrP
iOS Tutorials
Threads
172
Messages
2.5K
Messages
2.5K
iOS Tutorial
Using AppRefresh and Processing background tasks in your app
May 28, 2025
fredo
iOS Libraries
Threads
213
Messages
2.8K
Messages
2.8K
K
B4i Library
[class] PDFView
Jun 22, 2025
Kadandale Ganapathy Bhat
iOS Code Snippets
Threads
137
Messages
484
Messages
484
J
iOS Code Snippet
Show iOS System Dictionary Screen
Jul 7, 2025
jkhazraji
iOS Bugs & Wishlist
Threads
740
Messages
2.9K
Messages
2.9K
A
Wish
Exec script instead of sending to Builder
Monday at 11:25 AM
asubias
iOS Share Your Creations
The first attached image will be displayed as the thread preview image.
Threads
157
Messages
897
Messages
897
Share My Creation
Quizon - Let's Quiz
May 25, 2025
ilan
B4J - Desktop, Server and Raspberry Pi
B4J Questions
Threads
15.4K
Messages
88.4K
Messages
88.4K
B4J Question
remove created page
Today at 11:27 AM
stevel05
B4J Tutorials
Threads
888
Messages
7.8K
Messages
7.8K
B4J Tutorial
Pakai framework v5
Tuesday at 10:43 PM
aeric
B4J Libraries & Classes
Threads
756
Messages
12K
Messages
12K
B4J Library
[Web][SithasoDaisy5] - Create WebSites & WebApps with the power of the Abstract Designer (OpenSource)
Today at 1:17 AM
Mashiane
B4J Code Snippets
Threads
542
Messages
2K
Messages
2K
B4J Code Snippet
Get a size of structure
Jul 12, 2025
max123
B4J Bugs & Wishlist
Threads
1.3K
Messages
5.4K
Messages
5.4K
Bug?
Unexpected result of initialising a Long value
Monday at 6:04 AM
Erel
B4J Share Your Creations
The first attached image will be displayed as the thread preview image.
Threads
677
Messages
5.5K
Messages
5.5K
Share My Creation
[B4J] An odometer control
Yesterday at 10:26 AM
teddybear
B4R - Arduino, ESP8266 and ESP32
B4R Questions
Threads
2.3K
Messages
13.1K
Sub-forums
Sub-forums
Libraries developers questions
Messages
13.1K
B4R Question
Anyone uses STM32 in B4R ?
Wednesday at 9:46 PM
Cableguy
B4R Tutorials
Threads
204
Messages
1.2K
Messages
1.2K
B4R Tutorial
ESP32 Camera Picture Capture and Video Streaming! (Updated with code!)
Oct 16, 2024
Arf
B4R Libraries
Additional libraries
Threads
154
Messages
895
Messages
895
B4R Library
ESP32extras Library
Sunday at 5:36 PM
peacemaker
B4R Code Snippets
Threads
125
Messages
367
Messages
367
B4R Code Snippet
LED lighting PWM control
Jul 11, 2025
peacemaker
B4R Bugs & Wishlist
Threads
258
Messages
1.1K
Messages
1.1K
Bug?
IDE parsing HEX
Jul 10, 2025
peacemaker
B4R Share Your Creations
Threads
138
Messages
445
Messages
445
Share My Creation
i2c bus devices scanner with found address description
Sunday at 7:34 PM
peacemaker
General
The Business Forum
The place for business (ads, sales, money, ...) related questions and tips.
Threads
446
Messages
3.5K
Messages
3.5K
ROI for Custom Software
Sunday at 1:13 PM
aeric
🐢👩🏫 Teaching Programming with B4X
B4X is a great option for teaching programming.
This forum is intended for parents and teachers who teach or like to teach programming using B4X.
Threads
122
Messages
1.3K
Messages
1.3K
MusicBoxCenter
May 20, 2025
Marc DANIEL
Share Your B4X Story
What are you using B4X for? What have you learnt along the way?
Threads
48
Messages
427
Messages
427
K
B4X to the rescue .... @ilan
Feb 19, 2025
KiloBravo
Game Development
Game development related questions and discussions
Threads
364
Messages
3.3K
Messages
3.3K
R
Games
Develop full 3D games with WebGL library
Tuesday at 10:54 AM
roncoa
Chit Chat
The place for open discussions.
Threads
5.1K
Messages
44.6K
Messages
44.6K
19GB 7zip file Headers Error
Thursday at 11:29 PM
rabbitBUSH
Forum Discussion
Please post any question or idea regarding the forum here.
Threads
946
Messages
6K
Messages
6K
Problem Solving Skill
Today at 7:29 PM
Magma
Job Offers
Do you have a job offer / project for developers? Post it here.
Threads
859
Messages
3.7K
Messages
3.7K
B4A mouse coordinate on android to arduino - communicate mouse down coordinate. App runs on top of all other android apps.
Wednesday at 6:27 PM
almontgreen
More Languages
Italian Forum
Threads
4.9K
Messages
59K
Messages
59K
Italian
Spostare La cartella Android dal disco C a D
Thursday at 6:54 PM
Vasmar
German Forum
Threads
2.9K
Messages
15.8K
Sub-forums
Sub-forums
German Tutorials
Messages
15.8K
German
keyword für ausgewählte checkbox
Jul 2, 2025
SirHarry
Spanish Forum
Threads
3.4K
Messages
19.4K
Messages
19.4K
G
Spanish
Buscar y obtener URL de video YouTube
Yesterday at 8:41 AM
GiovanniO
French Forum
Threads
681
Messages
3.9K
Sub-forums
Sub-forums
French Tutorials
Messages
3.9K
J
French
Copie externalisée d'un fichier
Monday at 4:05 PM
jojo12
Portuguese Forum
Threads
213
Messages
969
Messages
969
J
[B4X] Abrir PDF
Jul 2, 2025
jesuslizonsoluciones
Chinese Forum
Threads
240
Messages
805
Sub-forums
Sub-forums
Chinese Tutorials
Messages
805
B4A爱好者自学群
Jul 10, 2025
aeric
Even More Languages
Threads
398
Messages
1.3K
Sub-forums
Sub-forums
Russian Forum
Thai Forum
Arabic Forum
Dutch Forum
Hebrew Forum
Japanese Forum
Romanian Forum
Polish Forum
Turkish Forum
Czech Forum
Bahasa Malaysia Forum
Korean Forum
Messages
1.3K
[บทเรียน,B4X] การกำหนดตำแหน่งพิกัดจำเพาะ(gravity)ของ B4XViews
Yesterday at 5:29 AM
Theera
Latest libraries
SithasoDaisy5
By: Mashiane
version: 5.46
Platforms: B4J
Core
By: Erel
version: 13.40
Platforms: B4A
FirebaseAdMob2
By: Erel
version: 3.21
Platforms: B4A
FirebaseAuth
By: Erel
version: 3.20
Platforms: B4A
FirebaseNotifications
By: Erel
version: 3.20
Platforms: B4A
FirebaseStorage
By: Erel
version: 3.20
Platforms: B4A, B4i
Index
Latest posts
Android Question
Looking for a program, or help writing it. Below possible?
Latest: drgottjr
Today at 7:45 PM
Android Questions
Problem Solving Skill
Latest: Magma
Today at 7:29 PM
Forum Discussion
B
iOS Question
Closing the DatePicker panel
Latest: BanditMrP
Today at 4:50 PM
iOS Questions
Share My Creation
[B4X] Video Conference, Audio, Text Chat app - meet@point - Source Code only 20€
Latest: Magma
Today at 2:34 PM
Share Your Creations
Android Question
MLKIT TextRecognition Using Activity
Latest: DonManfred
Today at 12:36 PM
Android Questions
Android Question
Google Play Console: "App Bundle is signed with the wrong key". But it's not!
Latest: Lucian Gontila
Today at 12:26 PM
Android Questions
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nyinyi
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dody
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Alexander Friesen
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Threads
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Messages
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Members
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