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Moss pixel canvas

Hacker Approved

Free pixel canvas where each brush is a tiny script; people enjoy its fun feel and tablet pressure support. Critics say some results look patchy.

Summarized from 55 comments.

Free pixel canvas where each brush is a tiny script; people enjoy its fun feel and tablet pressure support. Critics say some results look patchy.

recommend
46
criticize
6
months recommended
8 of 13

Why people love it

  • Fun pixel drawing with personality · 5

    This is the most fun I've had drawing with pixels since I was a kid

    Mar 2026 · comment

    I love how fun this is. It has so much personality.

    Mar 2026 · comment

    This is so much fun, and some an awesome idea.

    Mar 2026 · comment
  • Brushes are scripts over pixels · 2

    a drawing toy where each brush is a tiny script that knows about every pixel on the canvas

    Mar 2026 · comment

    each brush is a tiny script that knows about every pixel on the canvas

    Mar 2026 · comment
  • Responds to tablet pen pressure · 2

    The fact that it reacts to the pressure on my Wacom tablet puts it above many desktop tools

    Mar 2026 · comment

    This is very nice. I am astounded that my Surface Pro stylus works well with the brushes

    Mar 2026 · comment
  • Pixelated look and site design · 2

    really love the site design, great job man

    Mar 2026 · comment

    I love the pixelated look and feel so much

    Mar 2026 · comment

What hackers pick instead

Every quote

The 40 most detailed of 55 comments. Each links to the original.

  1. The fact that it reacts to the pressure on my Wacom tablet puts it above many desktop tools

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  2. a drawing toy where each brush is a tiny script that knows about every pixel on the canvas

    Recommends · Mar 2026

  3. This is very nice. I am astounded that my Surface Pro stylus works well with the brushes

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  4. each brush is a tiny script that knows about every pixel on the canvas

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  5. This is the most fun I've had drawing with pixels since I was a kid

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  6. I love how fun this is. It has so much personality.

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  7. This is so much fun, and some an awesome idea.

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  8. really love the site design, great job man

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  9. I love the pixelated look and feel so much

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  10. This is a seriously fun tool.

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  11. Very cool project! I do have to admit - looking far, far into the future - I am a bit scared of a Linux ABI-compatible kernel with an MIT license.

    Mixed · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  12. You can get results a billion times better than the horrible, disgusting look of ChatGPT in less than a couple of seconds

    Recommends · Oct 2026 · in “A practical guide to AI image generation, from diffusion to agents”

  13. I hope this succeeds and causes a lowest-common denominator Linux ABI to exist that user-land can target

    Recommends · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  14. kudos for the interesting project, but please strongly consider a copyleft license moving forward

    Mixed · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  15. free/libre open source decentralised, distributed post-blockchain holochain-powered

    Recommends · Jun 2026 · in “UK set to announce social media ban for under-16s”

  16. Moss is primarily built for this purpose which is now powering the Founding Agent.

    Recommends · Jun 2026 · in “Show HN: We put voice agent on our website, learned retrieval isn't bottleneck”

  17. reasonably decent for local gen while still being relatively small for modest GPUs

    Recommends · Oct 2026 · in “A practical guide to AI image generation, from diffusion to agents”

  18. With the help of Moss, we are able to make Founding Agent converse like human.

    Recommends · Jun 2026 · in “Show HN: We put voice agent on our website, learned retrieval isn't bottleneck”

  19. i think this is a far better approach to bringing rust's advantages to linux

    Recommends · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  20. is a very effective tool at detecting plagiarism in coding assignments

    Recommends · Jun 2026 · in “Failing grades soar with AI usage, dwindling math skills in Berkeley CS classes”

  21. I've been VERY impressed with Moss' design capabilites out of the box.

    Recommends · Oct 2026 · in “FLUX 3 Image Klein”

  22. Diorama-style VR works very well to reduce or even eliminate kinetosis

    Recommends · Oct 2026 · in “Way to Play Super Mario 64: On Apple Vision Pro”

  23. This plus using Fil-C for the BusyBox commands is a nice combination

    Recommends · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  24. it's much faster than realtime so it should be usable for streaming

    Recommends · Jul 2026 · in “Apple's new SpeechAnalyzer API, benchmarked against Whisper and its predecessor”

  25. The ability to easily verify the behavior of certain pieces of code

    Recommends · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  26. Very impressive and I like how accessible the codebase is.

    Recommends · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  27. It’s completely free, with no account required, ever.

    Recommends · Sep 2026

  28. The game Moss did this well for a platformers.

    Recommends · Mar 2026 · in “VR Is Not Dead”

  29. Moss looks much more general and powerful

    Recommends · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  30. Diorama style games in VR/AR are awesome.

    Recommends · Oct 2026 · in “Way to Play Super Mario 64: On Apple Vision Pro”

  31. this also seems not to be coded with ai

    Recommends · Feb 2026 · in “Moss: A Linux-compatible Rust async kernel, 3 months on”

  32. It's way cooler on desktop than mobile.

    Mixed · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  33. feels good (and is fast/small enough)

    Mixed · Aug 2026 · in “Ask HN: What are you working on? (August 2026)”

  34. the results were pretty blatant

    Recommends · Mar 2026 · in “We're Training Students to Write Worse to Prove They're Not Robots”

  35. it looks very bandy/patchy

    Mixed · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  36. really interesting project

    Recommends · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  37. The choice of MIT for a kernel feels like setting up the project to be cannibalized rather than contributed to.

    Criticizes · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  38. I've spent 5 minutes and clicked on every single thing I can find but I give up looking.

    Criticizes · Mar 2026 · in “Moss is a pixel canvas where every brush is a tiny program”

  39. I wish this was licensed GPL instead of MIT. I'll avoid contribution, sorry!

    Criticizes · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

  40. Great, an MIT license to accelerate planned obsolescence and hardware junk.

    Criticizes · Nov 2025 · in “Moss: a Rust Linux-compatible kernel in 26,000 lines of code”

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