What SYSTEMAX does

SYSTEMAX Software Development Inc. is a privately held Japanese software firm headquartered in Musashino-shi, Tokyo, founded in August 2006 with registered capital of 1,000,000 JPY. The company is operated by a single individual, Koji Komatsu, who serves as President, CEO, sole programmer, and customer support contact. Its commercial product is PaintTool SAI, a Windows-only digital painting application that has been distributed since at least 2006 (with corporate copyright dating to 1996). The software is targeted at professional and hobbyist digital artists, illustrators, and manga creators, with particular adoption among Japanese illustrators; the product is positioned as a lightweight alternative to full graphics suites such as Photoshop, focusing on high-quality brush rendering and pen-tablet workflow.

The technology is a proprietary 32-bit Windows application with full WinTab digitizer support, pressure sensitivity, custom anti-aliasing, and 16-bit ARGB color processing. Notable engineering includes Intel MMX utilization in Ver.1 and, in the forthcoming Ver.2 technical preview, multi-core CPU acceleration, 64-bit support, canvases up to 100,000x100,000px, up to 8,190 layers, Unicode application support, and new tools (Blur, Binary Brush, Scattering, Effect Pen, perspective and symmetry rulers). The product is delivered as a 31-day trial; after expiration, file open/save functions are disabled until a license is purchased. SYSTEMAX also publishes a utility for correcting bristle-definition bitmaps broken by recent Ver.2 builds.

Commercially, SYSTEMAX operates a pure direct-to-consumer model: software is downloaded from systemax.jp, payment is processed via PayPal or AXES Payment (credit card), and a hardware-bound license certificate is delivered by email. The single SKU is a 5,500 JPY (including sales tax) perpetual license covering all Ver.1.x.x updates, with major-version upgrades previously planned as paid and now offered as a free Ver.1-to-Ver.2 upgrade. There are no resellers, no app-store presence, no marketing spend beyond an informational website, and no disclosed revenue or external funding.

Name

SYSTEMAX

Legal name

SYSTEMAX Software Development Inc.

Website

https://systemax.jp

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

1–10 employees

Short description

SYSTEMAX Software Development Inc. is a privately held, one-person Japanese software firm that develops and sells PaintTool SAI, a lightweight Windows digital painting application priced at 5,500 JPY per perpetual license, serving digital artists and illustrators globally.

Ownership category

akta.pro rank

Headquarters

HQ city

Musashino

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2C

Offering type

Software

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Others

Revenue model

1. Software License Sales: One-time perpetual license purchase model. Customers pay a single fee for a software license certificate that removes trial limitations. The license is tied to a System ID (hardware binding) and allows use across version 1.x.x updates without additional purchase. Major version upgrades (e.g., 1.x to 2.x) would require upgrade fees, though SAI Ver.2 is being offered as a free upgrade from Ver.1.
2. License Reissue Service: Fee-based reissue of license certificates for customers who have lost their license number or download password. This is a supplementary service for existing customers who need to recover their license credentials.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

SYSTEMAX develops and sells PaintTool SAI, a lightweight, high-quality digital painting application for Windows that supports WinTab-compatible pen tablets with full pressure sensitivity and a proprietary anti-aliased drawing engine. The software is offered under a one-time perpetual license model (5,500 JPY including Japanese sales tax) with a 31-day evaluation period, distributed exclusively through the company's own website.

Product overview

SYSTEMAX Software Development is a Japanese software company that develops PaintTool SAI, a digital painting application for Windows. The product portfolio consists of PaintTool SAI Ver.1 (the current stable release, Ver.1.2.5), its forthcoming successor PaintTool SAI Ver.2 (in technical preview as of 2024-11), and associated software licenses. PaintTool SAI is a 32-bit Windows application known for its lightweight design, full digitizer/pen tablet support with pressure sensitivity, and high-quality anti-aliased rendering. Users can trial the software for 31 days before purchasing a software license (5500 JPY) to remove trial limitations.

Differentiator

Problem solved

Functional benefit

Brands

• PaintTool SAI: High quality and lightweight digital painting software with full digitizer support and anti-aliased drawing capabilities.
• PaintTool SAI Ver.2

Products and services

• PaintTool SAI Ver.1 A high-quality, lightweight digital painting application for Windows (32bit) with full WinTab-compatible digitizer support, pressure sensitivity, proprietary anti-aliasing, and 16-bit ARGB color channels, priced at 5,500 JPY with a 31-day trial for individual digital artists, illustrators, and manga creators.
• PaintTool SAI Ver.2 (Technical Preview) Next-generation 64-bit Windows digital painting software offering multi-core processing acceleration, canvases up to 100,000 x 100,000 pixels, 8,190 layers, Unicode support, and new tools including Blur Tool, Binary Brush Tools, Scattering Tool, and Effect Pen, available as a technical preview ahead of general release.
• PaintTool SAI Software License A one-time perpetual software license certificate (5,500 JPY including Japanese sales tax) that removes PaintTool SAI trial limitations and includes all Ver.1.x.x minor updates, purchased via PayPal or credit card through AXES Payment and delivered digitally.
• SAI Bristle Definition Bitmap Corrector A utility program that corrects invalid bristle definition bitmaps which became unusable in SAI Ver.2 versions from 2024-02-22 onward, rewriting hair points after the 64th point to valid values for continued compatibility with newer SAI versions.

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Two partnerships are on record, tiered minor.

• PayPalminorOthersPayPal is used as a payment processor for software license purchases. Customers can pay using their PayPal account or credit/debit cards through the PayPal checkout flow.
• AXES Payment Co., LTD.minorOthersAXES Payment Co., LTD. provides credit card payment processing services (VISA, MasterCard, JCB) for software license purchases. Handles currency conversion for international transactions.

Scale indicators3 records

Recent moves4 records

Expansion highlights3 records

Direct peers

• ArtRage: ArtRage by Ambient Design provides natural-media painting simulation with realistic brush textures and canvas effects. It competes with SAI in the digital painting category, especially for hobbyist and natural-media-leaning illustrators, with a simpler, more accessible UI similar to SAI's minimalist approach.
• MediBang Paint: MediBang Paint is a free, cross-platform (Windows, macOS, iPad, Android) digital painting and comic creation tool developed by a Japanese company. It directly challenges PaintTool SAI in the manga/comic creation niche and offers multi-platform reach that SAI lacks.
• Clip Studio Paint: Clip Studio Paint, by Japanese vendor Celsys, is the dominant manga/comic creation tool globally and the chief commercial rival to PaintTool SAI in the Japanese illustration segment. Both target professional illustrators with brush engines, pressure-sensitive digitizer support, and comic/manga-oriented features like perspective rulers and panel tools.
• Corel Painter: Corel Painter is a long-established, professional-grade digital painting application with realistic natural-media brush simulation. It directly overlaps PaintTool SAI's illustration and fine-art use cases, though it targets a more Western fine-art market and runs at higher price points and system requirements.
• Krita: Krita is a free, open-source digital painting application widely used by illustrators and concept artists on Windows, macOS, and Linux. It competes with PaintTool SAI directly in the digital painting niche and is the most common open-source alternative cited by SAI users considering a switch.
• Procreate: Procreate is the leading iPad-native digital painting app, developed by Savage Interactive. Although iPad-only, it has become a default choice for illustration and concept art, displacing tools like PaintTool SAI for users who migrated from Windows desktops to iPad workflows.
• openCanvas: openCanvas is a Japanese-developed digital painting and illustration tool that overlaps with SAI's lightweight, digitizer-focused design philosophy. It serves a similar Japanese illustrator audience with anti-aliased brushes and pressure-sensitive input, and historically has been discussed alongside SAI as a Windows alternative.

Broad incumbents

• Adobe Fresco: Adobe Fresco is Adobe's live-brush and raster painting application for iPad and Windows, bundled with Creative Cloud subscriptions. It targets the same digital illustration niche as PaintTool SAI but with the distribution, pricing-power, and ecosystem advantages of a major incumbent.
• Sketchbook (Autodesk): Sketchbook was a free, cross-platform digital sketching and painting app originally from Autodesk. Although Autodesk discontinued active development in 2024, it historically competed in the same digital painting category as PaintTool SAI and remains installed on many artist machines as a default sketching tool.

Emerging players

• Rebelle: Rebelle by Escape Motions is a niche digital painting tool focused on realistic watercolor, oil, and acrylic simulation. It targets traditional-media-leaning illustrators, a slice of PaintTool SAI's user base, and competes on bitmap painting fidelity rather than comic/manga workflows.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SYSTEMAX