processing/p5.js

p5.js is a client-side JS platform that empowers artists, designers, students, and anyone to learn to code and express themselves creatively on the web. It is based on the core principles of Processing. Looking for p5.js 2.0? http://beta.p5js.org

Stars: 24k
Forks: 3.8k
Open beginner issues: 9
Indexed issues: 401
Avg merge: 3d 16h
Merged PRs (30d): 25

Dominant language: JavaScript
License: LGPL-2.1
Last GitHub push: Sep 16, 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

399 open issues indexed

[p5.strands] Document `shared*` methods Open

Area:WebGL Enhancement

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

processing/p5.js#8440 · 7 comments · Opened Jan 24, 2026
[p5.strands] Document `uniform*` methods Open

Area:WebGL Enhancement

processing/p5.js#8439 · 3 comments · 1 assignee · Opened Jan 24, 2026
Adding an option of polygon under the 2d Primitives. Open

Area:Core Feature Request

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

processing/p5.js#8412 · 4 comments · Opened Jan 13, 2026
[p5.js 2.0 Bug Report]: noise(null) is treated as noise(0) while noise(undefined) errors, and this behaviour is undocumented and inconsistent. Open

Bug Good First Issue Help Wanted p5.js 2.0+

processing/p5.js#8407 · 15 comments · 1 assignee · Opened Jan 13, 2026
Clarify and remove repetition in arc() reference for start/stop parameters Open

Area:Core Enhancement

processing/p5.js#8405 · 5 comments · 1 assignee · Opened Jan 12, 2026
mousePressed / touchStarted not working on iOS Safari Open

Area:Events Bug

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

processing/p5.js#8401 · 2 comments · Opened Jan 11, 2026
[p5.js 2.0 Bug Report]: Missing Korean translation entry for `preloadDisabled` Open

Internationalization p5.js 2.0+

processing/p5.js#8395 · 5 comments · 1 assignee · Opened Jan 10, 2026
[p5.js 2.0 Bug Report]: Warnings about omitting strokes on high-detail 3D primitives don't use FES Open

Area:WebGL Good First Issue Help Wanted p5.js 2.0+

processing/p5.js#8387 · 18 comments · 1 assignee · Opened Jan 7, 2026
adding unit tests for test/unit/accessibility/color_namer.js Open

Area:Color Feature Request Reserved (CodeDay)

processing/p5.js#8377 · 7 comments · 1 assignee · Opened Jan 1, 2026
[p5.js 2.0 Bug Report]: Instanced p5.strands shader doesn't work after first frame if you use only it Open

Area:WebGL p5.js 2.0+

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

processing/p5.js#8374 · 12 comments · Opened Jan 1, 2026
[p5.js 2.0 Bug Report]: Browser UI completely freezes during WebGL shader compilation on Chromium Open

Area:WebGL p5.js 2.0+

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

processing/p5.js#8371 · 6 comments · Opened Dec 29, 2025
Smoother splines than catmull-rom? Open

Discussion

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

processing/p5.js#8329 · 4 comments · Opened Dec 13, 2025
[p5.js 2.0 Bug Report]: push() should return renderer state Open

Area:Core p5.js 2.0+

processing/p5.js#8327 · 5 comments · 1 assignee · Opened Dec 10, 2025
Do you think angleMode() should apply to both Canvas and any p5.Graphics on it? Open

Discussion

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

processing/p5.js#8290 · 9 comments · Opened Nov 22, 2025
Unknown issue with p5.js v1.11.6+ Open

Bug

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

processing/p5.js#8287 · 4 comments · Opened Nov 22, 2025
Add zero-range guard to map() to prevent NaN/Infinity when start1 equals stop1 Open

Area:Math Bug

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

processing/p5.js#8282 · 6 comments · Opened Nov 20, 2025
[p5.js 2.0 Docs] Change in return value for load functions that use callbacks needs to be documented Open

Discussion

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

processing/p5.js#8280 · 9 comments · Opened Nov 19, 2025
[p5.js 2.0 Bug Report]: That one font test is flaky Open

Area:Typography Help Wanted p5.js 2.0+

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

processing/p5.js#8274 · 27 comments · 1 reaction · Opened Nov 18, 2025
Enable lazy loading in setup Open

Area:Core Feature Request

Difficulty 5/5 Over a week Newbie friendliness 28/100

processing/p5.js#8263 · 20 comments · Opened Nov 16, 2025
Add new p5.js example: Survive the Horde Open

Area:Core Area:DOM Area:Events Feature Request

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

processing/p5.js#8256 · 8 comments · Opened Nov 11, 2025
Needed to comment out the line with p5.sound to make sketch work ok Open

Bug

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

processing/p5.js#8235 · 8 comments · Opened Nov 6, 2025
[p5.js 2.0 Bug Report]: Spanish “Steward Guidelines” page is outdated (still mentions Grunt), please sync with English for 2.x Open

p5.js 2.0+

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

processing/p5.js#8228 · 4 comments · 2 reactions · Opened Nov 2, 2025
[2.x] Update handling of different dimensions in `rotate()` method of `p5.Vector` Open

Area:Math Community Input Needed Help Wanted p5.js 2.0+

processing/p5.js#8218 · 5 comments · 1 assignee · Opened Oct 28, 2025
[2.x] Fix dimensional quirk in the `setHeading()` method of `p5.Vector` Open

Area:Math Bug Community Input Needed Good First Issue Help Wanted p5.js 2.0+

processing/p5.js#8215 · 10 comments · 1 assignee · Opened Oct 28, 2025
[2.x] Fix dimensional quirk in the `heading()` method of `p5.Vector` Open

Area:Math Bug Help Wanted p5.js 2.0+

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

processing/p5.js#8214 · 13 comments · Opened Oct 28, 2025
Friendly Error points to executing line in the p5.js file, not the line causing the issue Open

Bug Friendly Errors

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

processing/p5.js#8212 · 3 comments · Opened Oct 27, 2025
Unmatched push() calls cause progressive performance degradation and browser freeze (no warning) Open

Area:Core Bug Friendly Errors

processing/p5.js#8209 · 8 comments · 1 assignee · Opened Oct 27, 2025
arc() silently fails with Infinity/NaN values ( no console warnings) Open

Area:Core Bug Friendly Errors Required for p5v1 Freeze

processing/p5.js#8198 · 4 comments · 1 assignee · Opened Oct 24, 2025
[p5.js 2.0 Bug Report]: Tessellation of beginShape/endShape with multiple contours sometimes produces weird results Open

Area:WebGL p5.js 2.0+

processing/p5.js#8186 · 2 comments · 1 assignee · Opened Oct 22, 2025
[2.0] Typography questions and possible bugs Open

Area:Typography p5.js 2.0+

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

processing/p5.js#8177 · 3 comments · Opened Oct 21, 2025
[p5.strands] Detect references to outside variables and give helpful feedback Open

Area:WebGL Enhancement

processing/p5.js#8172 · 4 comments · 1 assignee · Opened Oct 20, 2025
[p5.js 2.0 Bug Report]: p5.Graphics does not have the setAttributes function Open

Area:Core Area:WebGL p5.js 2.0+

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

processing/p5.js#8170 · 9 comments · Opened Oct 20, 2025
[2.0] Include `w` field of `p5.Vector` in documentation Open

Area:Math Bug Good First Issue p5.js 2.0+

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

processing/p5.js#8154 · 8 comments · 1 reaction · Opened Oct 15, 2025
[p5.js 2.0 Bug Report]: saveGif generates black frames at start of gif Open

Area:Core p5.js 2.0+

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

processing/p5.js#8123 · 2 comments · Opened Oct 3, 2025
[p5.js 2.0 Bug Report]: textToContours() results are browser dependent Open

Area:Typography Help Wanted p5.js 2.0+

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

processing/p5.js#8103 · 7 comments · Opened Sep 23, 2025
new getCamera function for V1 & V2 Open

Area:WebGL Feature Request Good First Issue Help Wanted

processing/p5.js#8097 · 10 comments · 1 assignee · Opened Sep 19, 2025
[p5.js 2.0 Bug Report]: textSize and textWeight order shouldn't matter Open

Area:Typography p5.js 2.0+

processing/p5.js#8058 · 8 comments · 1 reaction · 1 assignee · Opened Aug 27, 2025
p5.Vector.fromAngle returns a 3d Vector while the Docstring says it creates a 2d Vector Open

Area:Math

Difficulty 2/5 1-3 hours Newbie friendliness 50/100

processing/p5.js#8048 · 5 comments · Opened Aug 24, 2025
Error when passing sampler2D array uniforms to shader Open

Area:WebGL Bug

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

processing/p5.js#8032 · 8 comments · Opened Aug 17, 2025
loadImage with GIFs that can't be parsed throws an error that breaks the sketch Open

Area:Image Bug

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

processing/p5.js#8021 · 2 comments · Opened Aug 6, 2025
Add an addFace function that adds a face to the current geometry object Open

Area:WebGL Feature Request

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

processing/p5.js#8019 · 6 comments · Opened Aug 4, 2025
Distributing custom builds Open

Discussion

processing/p5.js#8003 · 15 comments · 6 reactions · 1 assignee · Opened Jul 29, 2025
[p5.strands]: Abstract away `varying` and allow passing data between hooks in the same shader stage Open

Enhancement p5.strands

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

processing/p5.js#7995 · 3 comments · Opened Jul 27, 2025
[p5.js 2.0 Bug Report]: textToContours font loading error Open

Area:Typography p5.js 2.0+

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

processing/p5.js#7979 · 5 comments · Opened Jul 20, 2025
Auto-link / Close Issues for 2.0 PRs (p5.js & p5.js-website) Open

DevOps Feature Request Help Wanted

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

processing/p5.js#7975 · 10 comments · 3 reactions · Opened Jul 17, 2025
[p5.js 2.0 Bug Report]: p5 reference error for p5.MediaElement Open

Area:DOM Good First Issue Help Wanted p5.js 2.0+

processing/p5.js#7968 · 26 comments · 1 assignee · Opened Jul 13, 2025
Feature Suggestion : Custom Viewport Coordinate Mapping Open

Area:Accessibility Area:Core Area:Math Area:Utilities Feature Request

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

processing/p5.js#7959 · 6 comments · Opened Jul 8, 2025
saveFrames() does not honor frame rate Open

Bug Help Wanted

processing/p5.js#7958 · 19 comments · 1 assignee · Opened Jul 8, 2025
SyntaxError from acorn, when embedded in Angular app Open

Bug

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

processing/p5.js#7957 · 5 comments · Opened Jul 8, 2025
automatic rewrite of custom functions in Strands Open

Area:Core Enhancement p5.strands

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

processing/p5.js#7953 · 9 comments · Opened Jul 5, 2025

A short digest of beginner-friendly GitHub issues.