How to Convert PNG to SVG
Full-color vectorization in 4 simple steps:
Upload Your Image
Drag & drop or click to upload PNG, GIF, BMP, or WebP. Your file stays on your device — never uploaded to any server.
Choose Color Mode
Select Full Color for photorealistic SVG with up to 256 colors, or B&W for crisp monochrome logos and line art.
Fine-Tune Settings
Open Advanced Settings to control color precision, gradient smoothness, speckle filter, curve fitting, and corner thresholds.
Vectorize & Download
Click Vectorize — the ImageTracer engine generates true SVG paths that stay perfectly sharp at any zoom level.
Key Features & Benefits
Full-Color SVG Vectorization
Uses ImageTracer.js path-tracing engine — produces real SVG curves and fills that preserve your image's original colors, not just B&W.
Zero Blur at Any Zoom
SVG output uses mathematical paths — scales infinitely from 16px to billboard size with zero pixelation or blur.
9 Advanced Tracing Controls
Color precision, gradient step, speckle filter, curve fitting, corner threshold, segment length, splice threshold, clustering, and color mode.
100% Client-Side Privacy
All tracing runs inside your browser via Canvas API + ImageTracer.js. Your images never leave your device.
Stacked or Disjoint Paths
Choose stacked layering for smaller files, or disjoint cutting for CNC/vinyl/laser cutter compatibility.
Free, No Login, No Limits
Convert unlimited images to SVG with no watermark, no account, and no daily limits. Ever.
PNG to SVG Converter — Complete Guide
SVG (Scalable Vector Graphics) is an XML-based vector format that describes images using mathematical paths — circles, curves, rectangles, and polygons. Unlike PNG raster images that degrade when zoomed, SVG files remain perfectly sharp at any scale. This makes SVG the preferred format for logos, icons, illustrations, and print-ready artwork.
Nextgen Astra's PNG to SVG converter uses ImageTracer.js, a full-featured raster-to-vector tracing engine that runs entirely in your browser. It performs color quantization to identify distinct color regions, then traces contour paths around each region using quadratic Bézier splines. The result is a true vector SVG with smooth curves — not a pixel-grid approximation.
Understanding the Advanced Settings:
- Color Precision (1–8 bits) — Controls how many colors ImageTracer extracts. 6 bits = 64 colors, 8 bits = 256 colors. Higher values preserve more gradients but produce larger SVG files.
- Gradient Step — Controls the color difference between quantization layers. Lower values produce smoother gradients with more layers.
- Filter Speckle — Removes noise patches smaller than N pixels. Set higher (8–16) for noisy photos, lower (0–2) for clean logos.
- Curve Fitting — Spline produces smooth Bézier curves. Polygon produces straight-edge paths. Pixel produces exact pixel boundaries.
- Corner Threshold — Angles sharper than this become corners instead of smooth curves. Lower = more corners, Higher = smoother.
| Feature | Nextgen Astra | Adobe Illustrator | Inkscape |
|---|---|---|---|
| Price | ✓ Free always | ✗ $54.99/mo | ✓ Free (desktop) |
| Works in Browser | ✓ Yes | ✗ No | ✗ No |
| Full-Color Tracing | ✓ Up to 256 colors | ✓ Advanced | ✓ Via Potrace |
| No Login Required | ✓ | ✗ Adobe ID | ✓ |
| Advanced Controls | ✓ 9 settings | ✓ Many | ✓ Several |
| Curve Fitting Options | ✓ 3 modes | ✓ 2 modes | ✓ 2 modes |
| Client-Side Privacy | ✓ 100% | ✗ Cloud | ✓ Local |
Frequently Asked Questions
?Does this PNG to SVG converter support full-color images?
Yes! Unlike basic black-and-white tracers, Nextgen Astra uses ImageTracer.js — a real path-tracing engine that supports full-color vectorization with up to 256 colors. Choose Color mode and adjust Color Precision to control the number of color layers in your SVG output.
?Is the PNG to SVG converter free?
Yes, completely free. No login, no account, no watermarks, and no file limits. All conversion runs locally in your browser using JavaScript — your images are never uploaded to any server.
?Will the SVG blur when I zoom in?
No! SVG is a mathematical vector format — it scales infinitely without quality loss. Unlike raster formats (PNG, JPEG), SVG paths remain perfectly sharp at any zoom level, making it ideal for logos, icons, and print artwork.
?What do the advanced settings do?
Color Precision controls how many colors are extracted (2–256). Gradient Step controls color quantization smoothness. Filter Speckle removes noise patches smaller than N pixels. Curve Fitting lets you choose between smooth spline paths and pixel-perfect edges. Corner Threshold, Segment Length, and Splice Threshold fine-tune curve smoothness and corner detection.
?What is the difference between stacked and disjoint clustering?
Stacked clustering layers color shapes on top of each other (like Photoshop layers) — this often produces smaller files. Disjoint clustering cuts shapes so they don't overlap — better for CNC cutting, vinyl plotters, and laser engravers.
?What image formats are supported?
You can upload PNG, GIF, BMP, and WebP images. All are converted to full-color or black-and-white SVG depending on your color mode selection.