FAQ Section: Blocks Editor

Frequently Asked Questions
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Typeblocking video demo - MIT

Blocks Editor needs Browser Popups for Typeblocking and Downloaded Blocks Images

Finding hidden error or warning icons using Chrome Web Browser Inspector - TFO

Searching in the Blocks Editor - Ghica 2019

Searching in Firefox - rfresh1011 2025

Sharing Blocks Though github.com - ABG

Can't Select or Drag some blocks because of AntiVirus

Deep Nesting distorts Blocks Editor; Use mutators

Too Many Blocks - ABG

How to poison the Blocks Editor using Printer Codes in Text Blocks - Juan_Antonio, David_S

Extension Blocks Not Draggable, Corrupt Project

Browser extensions

Browser extension that adds on a Block Finder - Hritik Pujhari at Kodular (tested on AI2 Brave OK)

Chrome Extension AI2Helper - block finder, download all blocks separately or in zip, and remove all orphan blocks with one click - Kevinkun

GreasyFork/Tampermonkey AI2Helper script Find/Download - @Kevinkun
March 2026 AI2Helper update:

Block Printing

How to get black and white blocks for printing - @Kevinkun

Hand made (shell scripts) solution to nicely print the blocks - islegmar

Blocks Repair

How to find and remove a broken block - @Boban

5 Likes
Mass download all blocks as images
Error code Out of Memory
Manage blocks? Tidy up block view space and transport large blocks of code to other projects easily?
Finding component usage
Suggestion for navigating in the Block Area
CTRL + F, Scrollbar Yellow marks missing
Ctrl-F to find text
Use multiple Web components
App inventor is unable to compile this project.(XML,SAXParseException;)
10880 block limit exceeded - compiler error DX execution failed
Error when compiling - DX execution failed
Could you copy and paste code blocks across screens?
Project did not Save
The good old DX error
Comment font size is so small
Searching in Blocks that works as in every other tool?
The thin lines indicating search results are gone
[Chrome Extension] AI2Helper - download all blocks seperately and remove all orphan blocks with one click
Compilation error. Help :((
Saving blocks as snippets of code in onenote
The blocks area did not load properly. Changes to the blocks for screen 5475942398296064_menu will not be saved
How do you create app inventor block images from outside app inventor?
Copy block to backpack, renamed to "procedure"?
Import many blocks to a project. Import .aia or copy from backpack?
What is the best way to print the blocks out
Clean up Blocks
Blocks Finder disappeared after update?
Is there a Project Limit?
App doesn't update
Feature Requests
Technical Preview: Blockly v10 Update
Retrieving TinyDB Data
How do I find blocks or procedures in large app?
How do you make a clean code/setup?
Number To Letter Convertor For Barcode
Exporting programming blocks to a pdf
Searching for function call locations
Copy and paste a screen not working
Ctrl-F to find text
With 10k blocks the browser is slow
Improve development through areas of blocks
Search for something between the blocks (button, text.....)
[Feature Request] Flowchart/Roadmap of coding
Locking Block Assemblies
How do you use a Wheatstone Bridge to calculate Resistance using Bluetooth?
Text search in blocks (aihelper)
Nb202b Cannot paste >5 blocks from Backpack
How do I find a block, a button.... in the viewer?
No more scrollbar indicating with tiny markings the position of the occurrences of searched items through native browser find (Ctrl+F) on AI2 Block Editor
Why procedure blocks get fatter and don't stay where I drop them, so they overlap?
CTRL + F yields unexpected and unwanted results
How do you remove AI2HELPER?
AI2Helper not working?
Add Search Bar to Blocks Editor for Faster Navigation
How do I share procedures and global variables between screens?
Won't let me download an image
Block Finder in AI2 (use Tampermonkey) - Browser Extension
Invalid text operation Segment: Start is (1) + length (2) - 1 exceeds text length (0)
[Chrome Extension] AI2Helper - download all blocks seperately and remove all orphan blocks with one click
Element Selection
Block editor - is it possible to draw frames to separate blocks?
I can only select and drag certain blocks
Frequently getting weired layout
Complex app architecture
No me dejan Imprimir Todos Los Bloques de mi aplicacion?
How do you get the Java code of our projects?
Can a large amount of blocks in the editor make the blocks editor laggy?
Block Finder in AI2 (use Tampermonkey) - Browser Extension
Hand made solution to nicely print the blocks
Can be Printer friendly Block code?
Error code Out of Memory
AnyButton.click limited to arrangement
Idea of making folder in block page
List is not a list after saving
Cross Reference App Items?
Best Browser for MIT AI2 with 500+ blocks
Blocks replaced
Resizing TableArrangement creates zombie components
Carica del mio progetto lenta
Big Bug ! App Inventor is deleting part of the code after closing and reopening the project