scratchfoundation/scratch-blocks

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Scratch Blocks is a library for building creative computing interfaces.

Stars: 2.8k
Forks: 1.6k
Open beginner issues: 0
Indexed issues: 233
Avg merge: 4h 51m
Merged PRs (30d): 12

Dominant language: JavaScript
License: Apache-2.0
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted

Beginner friendly Everything

Open All

233 open issues indexed

Some projects are severely slow, with very high memory use Open

spork

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#3662 · Opened Jul 15, 2026
Boolean blocks and menu popups show unwanted outlines Open

spork

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#3661 · Opened Jul 15, 2026
Dropdown padding wrong: box-sizing: border-box missing Open

spork

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

scratchfoundation/scratch-blocks#3660 · Opened Jul 15, 2026
Duplicated and pasted blocks no longer follow the cursor Open

spork

Difficulty 3/5 1-2 days Newbie friendliness 55/100

scratchfoundation/scratch-blocks#3659 · Opened Jul 15, 2026
Middle mouse button causes uncontrolled workspace/block movement Open

spork

Difficulty 3/5 1-2 days Newbie friendliness 48/100

scratchfoundation/scratch-blocks#3658 · Opened Jul 15, 2026
Red hat block (%15) in custom block definitions no longer works Open

spork

Difficulty 3/5 1-2 days Newbie friendliness 48/100

scratchfoundation/scratch-blocks#3657 · Opened Jul 15, 2026
RTL languages: reversed text and operators, erratic dragging, custom blocks lost off-screen Open

spork

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scratchfoundation/scratch-blocks#3656 · 1 reaction · Opened Jul 15, 2026
Deleting a hat block deletes the whole stack Open

spork

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

scratchfoundation/scratch-blocks#3655 · Opened Jul 15, 2026
Dragging a stack behind the palette can delete part of it Open

spork

Difficulty 3/5 1-2 days Newbie friendliness 58/100

scratchfoundation/scratch-blocks#3654 · 3 comments · 1 reaction · Opened Jul 15, 2026
Detached string inputs float loose in the workspace ("potato blocks") Open

spork

Difficulty 4/5 3-5 days Newbie friendliness 48/100

scratchfoundation/scratch-blocks#3653 · Opened Jul 15, 2026
Deleting a custom block input leaves a blank, uneditable input Open

spork

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#3652 · 1 reaction · Opened Jul 15, 2026
My blocks - Added the ability to return values Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

scratchfoundation/scratch-blocks#3601 · 3 comments · 3 reactions · Opened May 30, 2026
The automated release is failing 🚨 Open

semantic-release

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scratchfoundation/scratch-blocks#3596 · 5 comments · Opened May 23, 2026
5s Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

scratchfoundation/scratch-blocks#3583 · 1 comment · Opened May 7, 2026
65 Open

Difficulty 5/5 Over a week Newbie friendliness 5/100

scratchfoundation/scratch-blocks#3582 · 1 comment · Opened May 7, 2026
Incorrect Connection Top Bound For Blocks Dragged From Palette Open

spork

Difficulty 3/5 1-2 days Newbie friendliness 55/100

scratchfoundation/scratch-blocks#3559 · Opened Apr 20, 2026
No scroll to the "My Blocks" category when a new one is made Open

Low Severity Medium Prevalence

Difficulty 3/5 1-2 days Newbie friendliness 68/100

scratchfoundation/scratch-blocks#3542 · Opened Apr 14, 2026
Cannot tab between block inputs in the palette Open

Low Prevalence Medium Severity

Difficulty 3/5 1-2 days Newbie friendliness 52/100

scratchfoundation/scratch-blocks#3458 · 2 comments · 1 reaction · Opened Mar 9, 2026
Expand Control, Operators, and Looks Blocks; Remove 'If On Edge, Bounce' in Motion Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

scratchfoundation/scratch-blocks#3419 · 2 comments · Opened Nov 21, 2025
Dragging the flyout doesn't stop the scroll animation Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

scratchfoundation/scratch-blocks#3384 · 1 comment · Opened Aug 31, 2025
Wide blocks get visually truncated in the palette Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

scratchfoundation/scratch-blocks#3376 · 4 comments · 1 reaction · Opened Aug 15, 2025
Open mutator dialog will cause part of the toolbox not visible Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

scratchfoundation/scratch-blocks#3366 · Opened Jul 10, 2025
"days since 2000" should be calculated relative to timezone (it's not) Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

scratchfoundation/scratch-blocks#3290 · 1 comment · 2 reactions · Opened Jun 28, 2024
horizontal水平方向修改数字无法渲染 Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scratchfoundation/scratch-blocks#3287 · Opened Jun 24, 2024
something very broken in https://scratch.mit.edu/projects/793676889/ Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

scratchfoundation/scratch-blocks#3082 · 3 comments · Opened Aug 4, 2023
Feature request - pen reporters Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scratchfoundation/scratch-blocks#2991 · 1 reaction · Opened Mar 14, 2023
Feature request - change order of parameters of custom block Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

scratchfoundation/scratch-blocks#2990 · 4 reactions · Opened Mar 14, 2023
ENA-230: Request for a "set saturation effect" block Open

feature

Difficulty 4/5 3-5 days Newbie friendliness 38/100

scratchfoundation/scratch-blocks#2927 · 1 comment · Opened Dec 30, 2022
Some imputs accept negatives when they shouldn't Open

Low Prevalence Low Severity priority 4

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#2916 · 2 reactions · Opened Dec 4, 2022
Documentation Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

scratchfoundation/scratch-blocks#2908 · Opened Nov 28, 2022
Boolean block for show/hide sprite's state Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#2897 · 2 reactions · Opened Nov 18, 2022
Code Block Undo event allowed to bubble causing issues Open

Low Prevalence Medium Severity priority 3

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#2819 · Opened May 16, 2022
True and False blocks Open

feature

Difficulty 5/5 Over a week Newbie friendliness 30/100

scratchfoundation/scratch-blocks#2726 · 3 comments · 6 reactions · Opened Dec 23, 2021
ENA-148: Highlighted blocks are blurry on non-retina display in some situations Open

High Prevalence Medium Severity priority 2

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scratchfoundation/scratch-blocks#2720 · 8 comments · 3 reactions · Opened Nov 12, 2021
Drop shadow cut off while dragging blocks Open

High Prevalence Low Severity priority 3

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#2678 · 1 comment · Opened Sep 13, 2021
The editor runs slowly when dragging the whole workspace Open

Low Prevalence Medium Severity priority 4

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scratchfoundation/scratch-blocks#2675 · Opened Sep 8, 2021
Dependency Dashboard Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

scratchfoundation/scratch-blocks#2669 · Opened Aug 30, 2021
There is a limit to the nesting area of blocks Open

Low Prevalence Medium Severity priority 3

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scratchfoundation/scratch-blocks#2662 · Opened Aug 24, 2021
Ability to attach comments to blocks by dragging Open

feature

Difficulty 4/5 3-5 days Newbie friendliness 42/100

scratchfoundation/scratch-blocks#2391 · 1 reaction · Opened Apr 18, 2021
Layers block displays negative numbers incorrectly in RTL languages Open

High Prevalence High Severity localization priority 2

Difficulty 3/5 1-2 days Newbie friendliness 40/100

scratchfoundation/scratch-blocks#2387 · Opened Apr 13, 2021
In RTL languages, set variable block displays negative numbers incorrectly Open

High Prevalence High Severity localization priority 2

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#2386 · Opened Apr 13, 2021
Sensing Of block can show "backdrop # of sprite" in the blocks pallet Open

Low Prevalence Low Severity priority 4

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scratchfoundation/scratch-blocks#2144 · 1 comment · Opened Oct 7, 2020
Creating a custom procedure with % in the title collapses blocks pallet Open

High Severity Low Prevalence priority 3

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#2107 · 2 comments · Opened Sep 8, 2020
Expand/collapse Block Palette Open

feature

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scratchfoundation/scratch-blocks#2106 · Opened Sep 4, 2020
Monitors for blocks with parameters Open

feature

Difficulty 5/5 Over a week Newbie friendliness 25/100

scratchfoundation/scratch-blocks#2105 · 2 comments · Opened Sep 4, 2020
The border disappears on the workspace and the flyout overlaps the backpack when you drag blocks Open

High Prevalence Low Severity priority 3

Difficulty 3/5 1-2 days Newbie friendliness 42/100

scratchfoundation/scratch-blocks#2096 · 1 comment · Opened Jul 22, 2020
In RTL, blocks don't return to their position after dragging outside the area Open

localization Medium Prevalence Medium Severity priority 3

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scratchfoundation/scratch-blocks#2094 · Opened Jul 21, 2020
It takes two undo/redo steps to undo/redo the duplication of a block stack Open

Low Prevalence Low Severity priority 4

scratchfoundation/scratch-blocks#2089 · 1 assignee · Opened Jul 16, 2020
The mouse cursor switches to a pointer when you drag blocks Open

High Prevalence Low Severity priority 3

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

scratchfoundation/scratch-blocks#2084 · Opened Jun 25, 2020
There is a scrollbar in the context menu Open

developer facing Low Prevalence Low Severity priority 4

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scratchfoundation/scratch-blocks#2083 · 1 comment · Opened Jun 24, 2020

scratchfoundation/scratch-blocks

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