What is Design Swiftly?

Design Swiftly (cnc.jugaaadi.com) is a free, professional browser-based CAD/CAM platform for CNC routing, laser cutting, neon sign design, 3D extrusion, and architectural floor plan visualization. It loads in 0.37 seconds, requires no installation, and runs on any device — including mobile and tablet.

How fast does Design Swiftly load?

Design Swiftly achieves a verified Largest Contentful Paint (LCP) of 0.37 seconds. This is accomplished through a Smart Prefetch architecture that renders the canvas immediately on first byte, then loads heavy modules (3D simulator, fonts) in the background while the browser is idle.

Is Design Swiftly free?

Yes. Design Swiftly is completely free — no subscription, no premium tier, no paywalls, no usage limits, and no account required. All features including AI design, 3D simulation, and GRBL machine control are available to every user at no cost.

Does Design Swiftly work offline?

Yes. Design Swiftly is a Progressive Web App (PWA). After the first load, the full application is cached and available offline. You can design, generate G-code, and work with your files without an internet connection.

What CNC file formats does Design Swiftly support?

Design Swiftly supports SVG, DXF, PNG, JPG, WebP, and GIF imports. It exports to SVG, G-Code (.gcode / .nc), PNG, PDF, and the native .swiftly project format. G-Code uses the GRBL dialect with standardized safety headers (G17 G21 G90 G40 G80).

What CAM toolpath strategies are available?

Design Swiftly offers six CAM strategies: Inside Cut (offset inward by tool radius), Outside Cut (offset outward), On-Path (cut on centerline), Pocket (full material removal), V-Carve (angled engraving), and Drill (point drilling). All support multi-pass depth control, tab generation, and lead-in/out arcs.

What AI features does Design Swiftly have?

Design Swiftly integrates Google Gemini 2.0 Flash for three AI capabilities: (1) Natural language CAD commands — type 'Create a 6x4m living room with an L-sofa' and the canvas updates instantly. (2) AI Image-to-SVG — upload any photo and Gemini traces it to clean vector paths ready for cutting. (3) Context-aware suggestions — the AI understands your current canvas state and suggests next actions.

Can I design neon signs with Design Swiftly?

Yes. Design Swiftly includes a dedicated Neon Sign Maker that uses Hershey single-line fonts — fonts specifically optimized for CNC and laser engraving that produce a single cutting pass per stroke (no 'cutting air' inside closed letters). The tool auto-generates G-code for neon sign bending guides and LED channel backplates.

Does Design Swiftly support 3D design?

Yes. Design Swiftly has a full 3D stack: (1) Extrude Tool — select any 2D shape and drag interactive handles to define 3D volumes. (2) 3D Align Tool — snap extruded shapes together face-to-face with sub-millimeter accuracy. (3) Arch-Viz Viewer — a high-fidelity Three.js viewport with dynamic lighting presets (Day, Noon, Night), shadow rendering, and orbit/pan/zoom navigation.

Which CNC machines does Design Swiftly support?

Design Swiftly supports any GRBL-based or Marlin-based CNC controller via the Web Serial API — directly from your browser, with no extra software. Compatible machines include X-Carve, Shapeoko, Longmill, OpenBuilds Lead/WorkBee, 3018 Mini CNC, K40 laser with GRBL upgrade, Sculpfun, xTool, Atomstack laser engravers, and any custom GRBL Arduino build.

CNC & CAD/CAM Blog — Tutorials, Guides & Tips

Design Swiftly Blog

Guides, Tutorials & Deep-Dives

Everything you need to master CNC design, G-code, laser cutting, and professional browser-based manufacturing tools.

What Is Browser-Based CAD/CAM? A Complete Beginner's Guide

Learn what CAD/CAM software does, how it works in a browser, and why instant-load design tools are transforming workshops and maker spaces in 2026.

CAD/CAMBeginnerBrowser Tools

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Tutorials 9 min read

CNC Toolpath Strategies Explained: Inside, Outside, Pocket, V-Carve

A practical breakdown of the six core CNC cutting strategies — when to use each one, how they interact with tool radius, and how to set them up in Design Swiftly.

CNCCAMToolpaths

April 12, 2026Read

Tutorials 8 min read

G-Code for Beginners: What Every CNC Maker Needs to Know

G-Code is the language your CNC machine speaks. This guide demystifies G0, G1, G2, G3, M3, M5 and shows you how to read, generate, and optimize G-code without memorizing every command.

G-CodeCNCTutorial

April 10, 2026Read

Tutorials 6 min read

How to Turn a 2D Floor Plan into a 3D Room in Under 5 Minutes

Step-by-step walkthrough of Design Swiftly's Wall Tool and Extrude feature for architects and interior designers who want instant 3D visualization without expensive desktop software.

3D DesignArchitectureFloor Plan

April 8, 2026Read

Use Cases 5 min read

Designing Neon LED Signs with Hershey Fonts and G-Code

Single-line fonts are the secret to efficient CNC and laser-bent neon signs. Learn how Design Swiftly's Neon Sign Maker uses Hershey fonts to generate clean, single-pass G-code for your channel letter projects.

Neon SignsLaserG-Code

April 5, 2026Read

Guides 6 min read

Connect Your CNC Machine Directly in a Browser Using Web Serial API

No more third-party sender software. The Web Serial API lets modern browsers talk directly to GRBL-based CNC machines. Here's how to connect, jog, and send G-code from Design Swiftly.

GRBLWeb SerialMachine Control

April 2, 2026Read

Guides 8 min read

SVG Import for CNC: Best Practices and Common Pitfalls

Not all SVGs are CNC-ready. Learn how to clean up transforms, resolve nested groups, handle text-to-path conversion, and prepare any vector file for reliable G-code generation.

SVGCNCVector Design

March 28, 2026Read

Technology 5 min read

Why Progressive Web Apps Are the Future of Workshop Software

PWA means your design tool works offline, installs on any device, and loads instantly — without app stores or update prompts. Here's how Design Swiftly's PWA architecture achieves 0.37s LCP.

PWAPerformanceOffline

March 24, 2026Read

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Free Browser-Based CAD/CAM for CNC & Laser Cutting — Design Swiftly

Design Swiftly Blog — CNC Design, G-Code, Laser Cutting & Browser CAD/CAM Guides