Frequently Asked Questions

Illustmaker is a browser-based vector graphics editor. You can produce logos, illustrations, diagrams, social-media banners, flyers, and thumbnails — no installation, no signup. It works as a lightweight online alternative to Adobe Illustrator and Figma for many use cases.

No. The moment you open the editor, all features are available. No email or credit card required.

The editor itself is currently PC-only (latest Chrome / Safari / Edge / Firefox). On mobile, you can view the landing page, manual, gallery, and exported files, but editing requires a PC environment. Tablet support is under consideration for future updates.

It depends on your use case. For one-off works like logos, diagrams, social banners, and flyers, Illustmaker is a fine substitute. For CMYK print prepress, complex effects, team co-editing, or design-system management, Illustrator / Figma are better suited.

Yes. All editor features are free at this time. There are no ads, watermarks, or output limits. The MCP API is also free within the rate limits (anon 30 / Free 100 req/min).

The current free features will remain free. We plan to add an optional paid Pro tier (team sharing, unlimited exports, higher MCP rate, etc.), but we will not reduce the existing free scope.

No concurrency limit for personal use. The MCP API has rate limits (anon 30 / Free 100 / Pro 600 req/min) to prevent abuse.

Yes. Both companies and sole proprietors are free to use illustrations, diagrams, and logos created with Illustmaker for their own services, client work, paid distribution, or printed materials.

No credit is required. That said, we appreciate a link (https://asi.co.jp/illustmaker/) in introductory articles or reviews.

You do. All outputs (illustrations, diagrams, logos, etc.) belong entirely to the creator. ASI Inc. claims no rights to your works.

Yes. However, AI-agent-generated outputs may incidentally resemble existing copyrighted material, so we recommend running a similarity search before registering a trademark.

Basic shapes (rect, ellipse, polygon, star), free-form paths (pen tool), text, image placement, layer management, grouping, alignment, bezier editing, fills and gradients, and SVG/PNG/PDF export — all the essentials for vector graphics. See the manual for details.

Yes. Multiple layers with show/hide toggles, reordering, and locking are supported.

Fonts installed on your browser are available inside the editor. We also provide major Google Fonts as presets. Web font addition is planned for a future update.

Yes — drag and drop PNG / JPG / SVG files from your PC to place them. Via the MCP API (illust_import_from_url) you can also import by URL, but SSRF protection blocks internal IPs / loopback addresses.

Undo is unlimited within a session. Use Ctrl+Z / Cmd+Z to step back, Ctrl+Shift+Z / Cmd+Shift+Z to redo. Closing the browser resets the undo history.

MCP is a standard protocol from Anthropic for connecting AI agents to external tools and data sources. Illustmaker has native MCP support, so MCP clients (Claude Desktop, Cursor, Cline, etc.) can drive the editor directly through natural-language instructions.

Any MCP-compatible AI client, including Claude Desktop, Cursor, and Cline. Just run the npm package via npx -y @illustmaker/mcp. See the AI agent manual for details.

For Claude Desktop, add this to your claude_desktop_config.json:

{
  "mcpServers": {
    "illustmaker": {
      "command": "npx",
      "args": ["-y", "@illustmaker/mcp"]
    }
  }
}

See the AI agent manual for other clients.

Within the free tier (anon 30 req/min), no API key is needed. For a higher rate limit, issue an API key (format im_xxx) at /api/keys.php and send it in the X-API-Key request header. Keys are stored as SHA-256 hashes.

Currently 102 methods are exposed: shape add/update, color, text, grouping, alignment, SVG/PNG/PDF export, gradient mesh, brand kits, live share, and real-time collaborative editing — the full vector-editing surface.

SVG (vector), PNG (raster), and PDF (print-ready). Since SVG is also openable in Illustrator / Figma / Inkscape, downstream workflows are easy.

Yes — choose a scale factor (1x / 2x / 3x / 4x) at export time. For print, we recommend exporting as SVG or PDF and rasterizing at the printer's side when possible.

Yes. The in-progress data is auto-saved to your browser's localStorage. Reopening the editor continues from where you left off. Exported SVG files can also be re-imported by drag and drop.

No, work is saved to your browser's localStorage by default and not transmitted to our servers. Only when you create a session via the MCP API is a temporary session stored on the server — and that is automatically deleted after 7 days.

Yes, since all editing runs client-side in your browser. Note that MCP import_from_url blocks requests to private IPs / internal networks via SSRF protection.

Without registration, no personal information is collected. Only anonymized analytics (Google Analytics) is collected. See the Privacy Policy for details.

Revoke the key at /api/keys.php. Issuing a new key immediately makes the old key unusable.

Latest Chrome / Edge / Safari / Firefox. Internet Explorer is not supported. For the best experience, we recommend the latest Chrome or Edge.

Try the following:

1. Close other heavy tabs
2. Reduce layers and object count (simplify complex paths)
3. Clear the browser cache and reload
4. Enable hardware acceleration (browser settings)

If still unresolved, please contact info@asi.co.jp.

It's auto-saved to localStorage, so opening it again on the same browser and device resumes where you left off. However, private-browsing mode or clearing Cookies / site data will lose the data. For important work, we recommend exporting as SVG.

Bug reports and feature requests are welcome at info@asi.co.jp. Including your browser, OS, steps to reproduce, and a screenshot helps us respond faster.