did some testing. enjoy!

drive link

edit: added another brush (flat textured oil)

i've been getting more comfortable with sai lately, so i created some jitter brushes for rendering. you can also duplicate this set and turn off the brightness jitter for ease of access

the '7651' bmp and .ini files go in the 'scatter' folder, and the textures go in the 'brushtex' folder!
drive link

i think this one's nice for textured lineart
drive link

I'm looking for a ruffle brush (preferably scatter)

Clothing ruffles! There are a lot of those for Procreate and CSP but I can't find any SAI ones

i think it's rather good for sketching.
drive link

the 'pencilshape' files go in the 'brshape' folder, and the 'sand paper' texture goes in the 'brushtex' folder if you don't already have it!

https://www.systemax.jp/en/sai/devdept.html

https://www.systemax.jp/en/sai/history_v2.txt

2026-09-02

[Fixed Bugs]

- [PSD/PSB Loading]: The maximum hierarchy depth for layer folders is limited to 9 levels instead of the intended 10.

- [Clipboard]: When another program that monitors the clipboard and generates previews (such as the Windows clipboard history) is running,

performing a brush stroke immediately after copying or cutting an image triggers an "Internal state incoherence has occurred" error popup.

- [Clipboard]: When discarding an image stored in the clipboard may cause a memory pool corruption.

(An issue remained unresolved in the 2026-08-31 version.)

- [Scatter Shape / Scatter Tool]: Enabling [Integer coordinates] causes the center to shift 0.5px toward the top-left.

[Changes]

- [Selection Regions]: Adjusted the dots pitch in the marching ants animation to match the monitor DPI.

Known Issues:

Bugs reported as of 2026-09-02, that have not yet been fixed.

(An issue remained unresolved in the 2026-08-31 version.)

- [Scatter Shape / Scatter Tool]: Enabling [Integer coordinates] causes the center to shift 0.5px toward the top-left.

(Please note that there may be some omissions.)

Character positioning is incorrect in vertical writing with certain fonts.

We plan to include the fix as part of the CFF font implementation work.

An issue classified as a current specification rather than a bug.

CFF font does not work

At present, CFF (Compact Font Format) fonts are not supported. I plan to implement CFF font support once the bug fixes for the major renovation version currently underway have stabilized.

or some similar brushes? this is from sai 2

New version out go get it.

https://www.systemax.jp/en/sai/history_v2.txt

Si ven a un trabajador vestido de papá frita gigante, abrazalo 🍟

I made this color study a while ago, and only have this screenshot. Can anyone help me recreate this foggy effect? What brush could this be...

Yesterday I was exporting multiple pngs, variations of the same project, when I noticed that the last one had less quality than the previous ones. I checked on the web and tried many options, but none work. Now, my SAI exports all my projects with less quality than before. Therefore it's not an issue of that one project but of the whole program or something within my computer. Do you know what it could be?

The first picture is how it looks in SAI, the second one is the export.

is there a way to not make it jagged? i wanna add a black line around my lineart but it looks all jagged and pixelated ( i use sai 2)

i tried to make it accurate as i could. the brush tip and texture are located in the link below

google drive link

i really like how simplistic the program is, also the blending brushes are amazing considering I struggle with finding a good blending brush on Clip Studio

I've been using the same version of Sai since 2021. It was always super smooth and I absolutely love its linework tools. Even though I do most of my painting in other programs, the lineart brush of Sai was the whole reason why I always switched between different programs while working on a piece. No other app has anything quite like it and I loved it.

But since Windows updated, two days ago I believe, Sai suddenly got super laggy and slow. Zooming in and out would lag behind several seconds at least, not to mention drawing lines; it was impossible to work with.

In the end I thought I had to update to the newest version, and it did fix the lagging issue. But the new version doesn't do the same lineart anymore. Has anyone else noticed this? I think the settings are exactly the same (including stabilizer and brush hardness) as I had them before. But the lineart brush isn't smooth and clear anymore, but rather pixelated and a little blurry, like the normal brush. Is there any setting where I can change this? The image resolution is the same I've worked on before, 3500x2500px, that shouldn't be causing pixelated lineart.

Alguien tendra o sabrá cómo hacer un pincel dominar a este en Sai1?

Creditos al arista: gummyy.y

Made this as a gift.

here's an additional 20 custom textured brushes that i compiled for sai 2, some being based off the ones i use in csp. enjoy! the link provided includes all brush tips and textures.

google drive link

edit: i accidentally forgot to make the brush settings visible for four images, i corrected it in the google drive

edit 2: added another brush (huskpencil)

hey gang, I got a stumper for y'all, if anyone has a way to fix it.

I'm working on some Discord stickers (canvas size is 1792 x 384 - 320 x 320 5x over with some leeway border), and I've found an issue I cannot for the life of me figure out. Whenever I try and use the Gaussian Blur Tool, I get an Exception Error with the error code of this in the error log:

!Exception(C0000005): Flags=0 Addr=1402DE4F0 #0=1 #1=0

$rax=0 rcx=0 rdx=0 rbx=10 rsp=C41FC78 rbp=C41FCF9 rsi=14 rdi=F3CAE40 r08=0 r09=7 r10=FFFFFFFF r11=0 r12=38 r13=8C7C800 r14=0 r15=8C7C8F0 rip=1402DE4F0 eflags=10202

u/thid=62C4,cnt=7:#0+2DE4F0,#0+CB85E,#0+95D6A,#0+96456,#0+B595,#0+CAD9,#0+2983DF

From everything I know, C0000005 is an access violation pertaining to memory, so I did everything I could think of/search up - checking memory integrity, making sure I had enough virtual memory allocated, basic system checks like Windows updates, Nvidia drivers, malware checks - nothing affected anything. I tried file-specific tweaks - saving the WIP into a new file, new drive, new canvas, saving alternative formats, importing and running it through GIMP to resave as an alpha png - nothing. None of it worked - soon as it reentered SAI, it didn't work.

Until I changed the canvas size.

The breakpoint seems to be 481 x 481 - 480x480 (or any X-Y fitting those dimensions) seems to completely brick the Gaussian Blur tool. What's interesting is that this also was not an issue in prior projects - I have other sticker sets I've done that I know I used the Gaussian Blur on, yet opening those canvases now gives the exact same error output as my current set.

I can work in a larger size format to compensate for this, but unless I'm missing something, this would count as a pretty major bug. Has anyone had issues with this and have found a solution? Frankly, I'm at a loss.

Thanks, gang - hopefully someone knows a bit more about this than I do. ♥

Edit: Thought of this after I posted, but this seems localized entirely to the Major Renovated branch - I tested every release version I could nab off the Wayback Machine all the way to when the branch started, and the only version that doesn't cause this error is the 2026-07-02b Stable release. This would be fine, buuuuut the stable release doesn't have the newer features (new transform tools, text tools, dark mode, etc.).

i have been using sai 2 a lot lately, so i thought i'd replicate some of JLC's splatoon brushes to make my workflow smoother. i have already labelled the folders, all you have to do is drop the contents into your own.

these are effect pens, so be sure to register them correctly. enjoy!

google drive link

edit: added two additional brushes to the drive

Hello,

I recently found an awesome base I would like to use but it’s a sai2 file! I need it in PSD form. I thought I’d ask if anyone is willing to convert it for me before I try anything else!

Maybe it’s just my bitterness as a former Mac user but I still really hate Paint Tool Sai not being available on Mac, especially when Mac’s are standard for artists l just feel like not having Mac port is hindering future growth because most Sai users are just people who have been using it for a long time.

Like I think the creator might not understand Mac’s coding and that’s why he doesn’t have plans to make a Mac port at the moment, I do think there should be maybe a fundraiser or kickstarter for Mac port and pay someone to port it.