processing/processing4

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Source code for Processing, the software sketchbook and Java-based programming language for students, artists, designers, educators, hobbyists, and creative coders. Includes the core library, and editor (PDE)

Stars: 494
Forks: 183
Open beginner issues: 1
Indexed issues: 254
Avg merge: 4h 39m
Merged PRs (30d): 3

Dominant language: Java
License: No license data
Last GitHub push: Sep 18, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted good first issue

Beginner friendly Everything

Open All

254 open issues indexed

PShape does not provide getters for rectMode / ellipseMode Open

enhancement

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

processing/processing4#1359 · 1 comment · Opened Dec 12, 2025
Exporting an application for ARM Mac silently fails. Open

bug

processing/processing4#1354 · 2 comments · 1 assignee · Opened Dec 6, 2025
Code completion under Windows does not work Open

bug

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

processing/processing4#1351 · 3 comments · Opened Nov 29, 2025
Documentation Revamp / Organisation Open

documentation

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

processing/processing4#1350 · 6 comments · 1 reaction · Opened Nov 27, 2025
Nightly builds Open

build system enhancement

processing/processing4#1332 · 2 comments · 3 reactions · 2 assignees · Opened Nov 19, 2025
Missing app icon in the app drawer with Snap package version Open

bug

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

processing/processing4#1331 · 4 comments · Opened Nov 18, 2025
X11 support for simple rendering Open

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

processing/processing4#1330 · Opened Nov 18, 2025
Incorrect calculation of the text width in the P2D renderer Open

bug

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

processing/processing4#1328 · 3 comments · Opened Nov 17, 2025
open keyword compiler error Open

bug

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

processing/processing4#1326 · 2 comments · Opened Nov 15, 2025
Pixel Density applied to all renderers (PGraphics) Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

processing/processing4#1325 · Opened Nov 14, 2025
Floating point / HDR texture support Open

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

processing/processing4#1324 · 5 comments · 7 reactions · Opened Nov 13, 2025
Phong shading Open

webgpu

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

processing/processing4#1323 · Opened Nov 12, 2025
Integrate `PShape` and `PImage` with the Bevy asset system Open

webgpu

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

processing/processing4#1321 · 1 reaction · Opened Nov 7, 2025
`loadPixels` and `PGraphics` dependency batching in WebGPU Open

webgpu

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

processing/processing4#1320 · Opened Nov 7, 2025
Remove AWT from loading by default Open

webgpu

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

processing/processing4#1303 · Opened Oct 22, 2025
Processing App on Flathub Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

processing/processing4#1301 · 3 comments · Opened Oct 22, 2025
Create examples for the `svg` library Open

enhancement good first issue help wanted

processing/processing4#1290 · 10 comments · 1 assignee · Opened Oct 16, 2025
Update Pre-Processor Open

bug pde

Difficulty 4/5 3-5 days Newbie friendliness 30/100

processing/processing4#1288 · 2 comments · Opened Oct 15, 2025
Release Automation Improvements Open

build system

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

processing/processing4#1281 · 7 comments · Opened Oct 14, 2025
Raspberry Pi - Save As... sketch saving file dialog is unusable Open

bug

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

processing/processing4#1274 · 1 comment · 1 reaction · Opened Oct 14, 2025
Upgrade JDK Open

enhancement

processing/processing4#1269 · 6 comments · 2 reactions · 1 assignee · Opened Oct 12, 2025
Serial.list does not update. Open

bug

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

processing/processing4#1256 · 2 comments · Opened Sep 26, 2025
GUI glitches out. Open

bug

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

processing/processing4#1252 · 3 comments · Opened Sep 19, 2025
`processing cli` does not support Cyrillic characters on Windows Open

bug Reserved: EC

processing/processing4#1249 · 9 comments · 1 reaction · 1 assignee · Opened Sep 18, 2025
Open/Save File browser panels blank on XFCE Linux Open

bug help wanted

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

processing/processing4#1243 · 8 comments · 2 reactions · Opened Sep 15, 2025
`boolean record = true;` causes a syntax error even thought it is valid Java Open

bug

processing/processing4#1241 · 3 comments · 1 assignee · Opened Sep 12, 2025
Replacing Hardcoded key-bindings with ones that are modifiable through the settings Open

enhancement

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

processing/processing4#1238 · 6 comments · 2 reactions · Opened Sep 11, 2025
Menus on linux appear off pointer and has to keep the mouse clicked to keep it showed Open

bug

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

processing/processing4#1229 · 1 comment · Opened Sep 6, 2025
Since v4.4.3 - XYscope has odd sizing bug and small examples alphabetical order issue Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 32/100

processing/processing4#1225 · 1 comment · 1 reaction · Opened Sep 3, 2025
Save sketches into /sketchbook folder? (And/Or ability to track folders) Open

enhancement

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

processing/processing4#1224 · 3 reactions · Opened Sep 3, 2025
Can't load native code to bring window to front using the absolute path: ... Hmm. Can't load native code to bring window to front. Open

bug

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

processing/processing4#1215 · 2 comments · Opened Aug 20, 2025
Allow naming main .pde file in `pde://sketch/base64/` schema Open

enhancement

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

processing/processing4#1213 · 6 comments · 1 reaction · Opened Aug 16, 2025
Support GZip compression for Base64 encoded sketches in Processing URI schema Open

enhancement lower priority

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

processing/processing4#1212 · 3 comments · Opened Aug 16, 2025
Discussion: Implementing Visual Testing for Processing Core Open

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

processing/processing4#1207 · 6 comments · Opened Aug 14, 2025
Add toroidal wrap function Open

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

processing/processing4#1205 · 1 comment · Opened Aug 14, 2025
Creating a folder while in the "Save sketch folder as" crashes the program, loses work Open

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

processing/processing4#1201 · Opened Aug 7, 2025
migrate custom `jssc` dependency to maintainable source used in `serial` library Open

enhancement help wanted

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

processing/processing4#1194 · 1 reaction · Opened Jul 30, 2025
Add `beginClip()` and `endClip()` masking functions Open

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

processing/processing4#1191 · 4 comments · 2 reactions · Opened Jul 28, 2025
Black splash screen in Wayland - Snap package Open

bug help wanted linux pde

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

processing/processing4#1186 · 8 comments · Opened Jul 15, 2025
Could not get the settings folder Open

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

processing/processing4#1168 · 2 comments · Opened Jul 4, 2025
Opening Examples: confusing ux Open

enhancement

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

processing/processing4#1157 · 1 comment · 3 reactions · Opened Jun 20, 2025
NullPointerException on Dynamic Window Resize in Processing Open

bug

processing/processing4#1146 · 6 comments · 1 assignee · Opened Jun 14, 2025
Windows installer name is a random hash instead of processing-4.4.4-windows-x64.msi Open

build system

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

processing/processing4#1143 · 1 reaction · Opened Jun 11, 2025
Resolution of window scales poorly leading to bad render Open

bug core help wanted windows

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

processing/processing4#1142 · 3 comments · Opened Jun 11, 2025
macOS exported app fails with `JRExLoadFullError` Open

bug build system

processing/processing4#1141 · 19 comments · 1 assignee · Opened Jun 10, 2025
Fullscreen support for Welcome Sketches (Mouse2D, Flocking, Arctangent) Open

enhancement

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

processing/processing4#1140 · 1 comment · Opened Jun 9, 2025
Last Sketch on Startup Open

enhancement

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

processing/processing4#1139 · Opened Jun 8, 2025
Issues with FFmpeg (and Movie Maker) - need chmod and the binary is the wrong CPU type Open

bug help wanted

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

processing/processing4#1137 · 2 comments · Opened Jun 7, 2025
loadImage(...) and createGraphics(..., P2D) have different y-coordinates Open

bug

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

processing/processing4#1134 · 4 comments · Opened Jun 4, 2025
Add Window Maximization Preference Open

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

processing/processing4#1133 · Opened Jun 3, 2025

processing/processing4

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