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

401 open issues indexed

[p5.js 2.0+ Bug Report]: no referrer leading to errors with OpenStreetMap Open

p5.js 2.0+

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

processing/p5.js#9195 · Opened Sep 18, 2026
[p5.js 2.0+ Bug Report]: Missing type declarations Open

Area:Accessibility Area:Utilities p5.js 2.0+

Difficulty 3/5 1-2 days Newbie friendliness 62/100

processing/p5.js#9190 · 1 reaction · Opened Sep 17, 2026
[p5.js 2.0+ Bug Report]: ReferenceError: p5 is not defined when calling loadPixels/get/copy/mask on p5.MediaElement in ESM Open

Area:Core Area:DOM

Difficulty 2/5 1-3 hours Newbie friendliness 86/100

processing/p5.js#9189 · Opened Sep 17, 2026
[p5.js 2.0+ Bug Report]: strands breaking on arrow functions with parameters Open

Help Wanted p5.js 2.0+ p5.strands Technical Initiative

processing/p5.js#9180 · 3 comments · 1 assignee · Opened Sep 16, 2026
[p5.js 2.0+ Bug Report]: strands not handling comma operator (common in minified js) Open

Help Wanted p5.js 2.0+ p5.strands Technical Initiative

processing/p5.js#9178 · 6 comments · 1 assignee · Opened Sep 15, 2026
A false positive FES error on function "loadModel" Open

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

processing/p5.js#9176 · 9 comments · 1 assignee · Opened Sep 15, 2026
WebGPU-to-WebGL fallback Open

Area:WebGL Area:WebGPU Enhancement p5.js 2.0+ Technical Initiative

processing/p5.js#9175 · 2 comments · 1 reaction · 1 assignee · Opened Sep 15, 2026
[p5.js 2.0+ Bug Report]: Minor issues in the creating libraries contributor doc Open

Documentation Help Wanted p5.js 2.0+

processing/p5.js#9171 · 2 comments · 1 reaction · 1 assignee · Opened Sep 13, 2026
[Bug]: p5.Image.prototype.copy and blend do not scale destination coordinates for high pixel density Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

processing/p5.js#9169 · Opened Sep 11, 2026
[p5.js 2.0+ Bug Report]: textureWrap() silently drops the y wrap mode when passed the object returned by its own getter Open

Area:WebGL p5.js 2.0+

Difficulty 3/5 1-2 days Newbie friendliness 78/100

processing/p5.js#9164 · 3 comments · Opened Sep 11, 2026
[p5.js 2.0+ Bug Report]: Fill interpolation in TRIANGLE_FAN in P2D mode Open

Area:Color p5.js 2.0+

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

processing/p5.js#9159 · 2 comments · Opened Sep 10, 2026
[p5.js 2.0+ Bug Report]: FES omits parameter position for any parameter after the first Open

Internationalization p5.js 2.0+

Difficulty 3/5 1-2 days Newbie friendliness 78/100

processing/p5.js#9151 · 2 comments · Opened Sep 7, 2026
p5.Vector: mock setup blocks the 8 disabled rotate tests — 6 revivable, 2 need a decision Open

Discussion

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

processing/p5.js#9144 · 1 comment · Opened Sep 6, 2026
[p5.js 2.0+ Bug Report]: save() ignores the CRLF option when saving text files Open

Area:IO p5.js 2.0+

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

processing/p5.js#9141 · Opened Sep 5, 2026
Re-enable 5 passing .todo tests in test/unit/color/p5.Color.js Open

Area:Color Enhancement

Difficulty 1/5 1-3 hours Newbie friendliness 94/100

processing/p5.js#9139 · 4 comments · Opened Sep 5, 2026
[p5.js 2.0+ Bug Report]: frameBuffer causes warning in Safari Open

Area:WebGL p5.js 2.0+

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

processing/p5.js#9138 · 6 comments · Opened Sep 4, 2026
[p5.js 2.0+ Bug Report]: Blob URLs created by p5.File._load() for video/audio files are never revoked Open

Area:DOM Area:IO p5.js 2.0+

processing/p5.js#9134 · 10 comments · 1 assignee · Opened Sep 3, 2026
[p5.js 2.0+ Bug Report]: assigning MediaElement.src leaves stale <source> children, so reading src returns the old source Open

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

processing/p5.js#9133 · 2 comments · Opened Sep 3, 2026
[p5.js 2.0+ Bug Report]: setHeading() ignores angleMode(), a 1.x regression, and its 3D guard is dead code Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

processing/p5.js#9131 · 1 comment · Opened Sep 3, 2026
[p5.js 2.0+ Bug Report]: randomGaussian() leaks its spare value across p5 instances, breaking seeded determinism Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

processing/p5.js#9130 · Opened Sep 3, 2026
[p5.js 2.0+ Bug Report]: int() truncates numbers to 32 bits, disagreeing with the same value passed as a string Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

processing/p5.js#9129 · Opened Sep 3, 2026
[p5.js 2.0+ Bug Report]: shuffle() mutates typed arrays in place even when modify is false Open

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

processing/p5.js#9128 · Opened Sep 3, 2026
[p5.js 2.0+ Bug Report]: splitTokens() returns [] for a caret delimiter and throws for a backslash Open

Difficulty 2/5 1-3 hours Newbie friendliness 76/100

processing/p5.js#9126 · 1 comment · Opened Sep 2, 2026
[p5.js 2.0+ Bug Report]: nfc() truncates instead of rounding and drops the documented trailing zero padding Open

Difficulty 2/5 1-3 hours Newbie friendliness 88/100

processing/p5.js#9125 · 1 comment · Opened Sep 2, 2026
[p5.js 2.0+ Bug Report]: default color serialization truncates channel bytes, disagreeing with #rrggbb on the same color Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

processing/p5.js#9124 · Opened Sep 2, 2026
LaTeX support and equation transformations Open

Feature Request

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

processing/p5.js#9121 · 5 comments · Opened Sep 1, 2026
Update describe function limits and best practices Open

Area:Accessibility Enhancement Good First Issue

processing/p5.js#9105 · 4 comments · 1 assignee · Opened Aug 21, 2026
Add lang parameter to describe functions to improve multingual capabilities for screen readers Open

Area:Accessibility Area:DOM Enhancement Reserved (CodeDay)

processing/p5.js#9100 · 1 comment · 1 reaction · 1 assignee · Opened Aug 19, 2026
[p5.js 2.0+ Bug Report]: Test fails when run npm test Open

p5.js 2.0+

Difficulty 3/5 1-2 days Newbie friendliness 28/100

processing/p5.js#9099 · 12 comments · Opened Aug 18, 2026
load model textures lazily instead of blocking loadModel() on all of them Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

processing/p5.js#9094 · Opened Aug 16, 2026
add a glTF / GLB model loader Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

processing/p5.js#9093 · Opened Aug 16, 2026
add PBR (metallic-roughness) materials Open

Difficulty 5/5 Over a week Newbie friendliness 45/100

processing/p5.js#9092 · Opened Aug 16, 2026
Alter fract() or add new fraction() function - addressing a negative float's decimal Open

Discussion

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

processing/p5.js#9084 · 2 comments · Opened Aug 15, 2026
Add p5.storageBuffer method for deleting/destroying/unallocating Open

Enhancement

processing/p5.js#9078 · 4 comments · 1 assignee · Opened Aug 14, 2026
Lint issues don't break CI Open

Discussion

Difficulty 4/5 3-5 days Newbie friendliness 52/100

processing/p5.js#9070 · 5 comments · Opened Aug 10, 2026
[p5.js 2.0+ Bug Report]: orbitControl is not available on WEBGL p5.Graphics Open

Area:WebGL p5.js 2.0+

processing/p5.js#9048 · 2 comments · 1 assignee · Opened Aug 6, 2026
[p5.js 2.0+ Bug Report]: Should not emit FES warnings on GLSL keywords outside of p5.strands Open

p5.js 2.0+ p5.strands

processing/p5.js#9038 · 8 comments · 1 assignee · Opened Aug 4, 2026
Harden GitHub Actions workflows: pinning, static analysis, enforcement Open

DevOps Discussion

processing/p5.js#9033 · 1 comment · 1 assignee · Opened Aug 3, 2026
[p5.js 2.0+ Bug Report]: Infinite loops detected when calling splineVertex Open

Area:Core Area:WebGL p5.js 2.0+

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

processing/p5.js#9026 · 10 comments · 1 reaction · Opened Jul 29, 2026
Discussion: The performance vs safety trade off of FES (Zod) validation on Math classes (p5.Vector, p5.Matrix) Open

Area:Math Discussion Friendly Errors

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

processing/p5.js#9022 · 4 comments · Opened Jul 28, 2026
[p5.js 2.0+ Bug Report]: mouseIsPressed is unconditionally reset on multi-touch release Open

Area:Events p5.js 2.0+

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

processing/p5.js#9013 · 1 comment · Opened Jul 24, 2026
[p5.js 2.0+ Bug Report]: Large slowdown in `p5.Graphics.set()` compared to v1.11.x Open

Area:Core Area:Image p5.js 2.0+ Patch Technical Initiative

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

processing/p5.js#9000 · 5 comments · Opened Jul 21, 2026
Make p5.strands matrix uniform helpers (uniformMat2x2/3x3/4x4) production-ready: tests, docs, p5.Matrix support Open

Area:WebGL Enhancement

Difficulty 4/5 3-5 days Newbie friendliness 52/100

processing/p5.js#8992 · 6 comments · Opened Jul 19, 2026
Add typography benchmark tests for textToModel() Open

Area:Typography Enhancement

processing/p5.js#8970 · 6 comments · 1 assignee · Opened Jul 6, 2026
Add typography benchmark tests for textToPaths() Open

Area:Typography Enhancement

processing/p5.js#8969 · 4 comments · 1 assignee · Opened Jul 6, 2026
Add typography benchmark tests for textToContours() Open

Area:Typography Enhancement

Difficulty 3/5 1-2 days Newbie friendliness 62/100

processing/p5.js#8968 · 2 comments · Opened Jul 6, 2026
[p5.js 2.0+ Bug Report]: Bugs in 2.x p5.Vector documentation Open

Area:Math Documentation Help Wanted p5.js 2.0+ Technical Initiative

processing/p5.js#8961 · 5 comments · 1 assignee · Opened Jun 27, 2026
Support transformation matrices in p5.strands Open

Area:Math Area:WebGL Area:WebGPU Enhancement p5.strands Technical Initiative

processing/p5.js#8953 · 11 comments · 2 reactions · 1 assignee · Opened Jun 22, 2026
[p5.js 2.0+ Bug Report]: p5js editor gives wrong (spurious) line number for errors Open

Area:Utilities p5.js 2.0+

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

processing/p5.js#8942 · 5 comments · Opened Jun 19, 2026
[p5.js 2.0+ Bug Report]: Shader source's newline gets stripped on `npm run dev` leading to syntax error Open

p5.js 2.0+

processing/p5.js#8932 · 4 comments · 1 reaction · 1 assignee · Opened Jun 17, 2026

A short digest of beginner-friendly GitHub issues.