Blob generator

Create smooth, organic blob shapes for backgrounds and hero sections — tweak and shuffle, then export SVG or PNG.

Preview background

Advanced settings (optional)

Blob

Complexity

More points = more lobes and detail.

Contrast

0.5

How irregular the edge is.

Smoothness

Lower = tighter, more angular. Higher = rounder, curvier edges.

Rotation

Spin the whole blob.

Fill

Gradient

Colours

Gradient type

Gradient angle

135

Direction of the colour blend.

Outline

Stroke

Export background

Bake into SVG/PNG

PNG size

Organic SVG blob · scalable vector or PNG · great for backgrounds & hero sections

Runs in your browser. Files are never uploaded — you can go offline after the page loads.

How to use the Blob Generator

Adjust complexity and contrast, or hit Shuffle.
Pick a colour or gradient.
Copy the SVG or download SVG / PNG.

Easy to use

Drop files, pick options, download. Whole folders at once, no signup, no daily limit.

Best quality

The same engines the professionals use — SVGO, resvg, MozJPEG, libwebp, libavif — compiled to run in your browser.

Private & secure

Files are processed on your device and never uploaded. Close the tab and nothing remains anywhere.

Organic shapes for modern layouts

Soft, irregular blob shapes are everywhere in current web design — background accents, hero-section masks, avatar frames and decorative highlights that feel friendlier than hard-edged rectangles. Adjust how many lobes and how irregular the edge is, shuffle for a fresh shape, and fill it with a solid colour or a gradient from the presets.

Copy the SVG markup straight into your HTML or CSS — it is vector, tiny and scales to any size — or download a PNG for raster tools. Everything is generated in your browser. To recolour SVGs you already have, see SVG Color Changer; to shrink them, SVG Optimizer.

Frequently asked questions

What are blobs used for?

Organic blob shapes are a staple of modern web design — soft background accents, hero-section masks, avatar frames and decorative highlights that feel friendlier than hard rectangles.

SVG or PNG?

SVG is vector and tiny, so it scales to any size and is ideal for the web — copy the markup straight into your HTML or CSS. PNG is there for tools that need a raster image.

Can I get the same blob again?

Each shape comes from a seed shown in the file name, and your complexity, contrast and colour settings are all under your control — Shuffle picks a new seed for a fresh shape.

SVG OptimizerShrink SVGs 40–70 % with no visual change SVG Color ChangerRecolor icons and whole sets Chart MakerPaste rows from Excel or a CSV, pick a chart type, download a clean PNG or SVG

Your files never leave your device

Most online converters upload your file to a server. InfyTool ships the actual encoders to your browser as WebAssembly instead, so processing happens inside your tab — faster for batches, and nothing to delete afterwards.

No upload, ever. Turn off Wi-Fi after the page loads and every tool keeps working.
No limits. No file-size cap, no queue, no watermark, no account.
Runs on your CPU. Batches use several cores in parallel; nothing is throttled.

More free tools

Need icons or SVGs to start from?

InfyTool is built by the same team as these free libraries.

InfyIconFree SVG and PNG icons you can open directly in these tools. InfySVGFree SVG designs and illustrations, ready to optimise or convert. InfyPNGFree transparent PNG graphics for mockups and social posts.