SVG Blob Generator
Generate random organic blob shapes as SVG.
Generate random organic blob shapes as SVG.
This free SVG Blob Generator from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the SVG Blob Generator
- Drop your image into the upload area, or click to browse.
- Pick the output format, size or compression level.
- Click "Process" - the tool runs and shows a preview.
- Download the result. Most tools delete your file from the server immediately after.
What you can do with the SVG Blob Generator
- Optimise images for web pages and faster Core Web Vitals.
- Resize photos for social media specs (1080×1080, 1200×630, etc.).
- Convert HEIC, AVIF or WebP to a more compatible format.
- Strip EXIF metadata before sharing photos online.
Why use KX Toolkit's SVG Blob Generator
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
Compress your image AFTER resizing - running them in that order produces smaller files at the same visual quality.
Related Image Tools
If you find this tool useful, explore the full Image Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
How do I generate a random SVG blob shape?
Open the tool and a blob shape appears immediately with default settings. Click the random button to roll a new shape, or adjust sliders for complexity and contrast to control how irregular the outline is. When you find one you like, copy the SVG code or download an SVG file. Blobs are popular as decorative backgrounds, hero section accents and logo elements because they add organic personality without the cost of a custom illustration.
What do the complexity and contrast sliders control?
Complexity controls how many anchor points the path has, which decides how detailed the outline can be. Higher complexity gives more bumps and bends. Contrast decides how far each anchor point can move from a perfect circle, which controls how irregular the result feels. Low complexity with high contrast gives soft pebble like shapes, while high complexity with high contrast gives jagged organic outlines. Experiment until the blob matches the mood you want.
Can I change the colour of the generated blob?
Yes. There is a colour picker that sets the fill, and a separate option for adding a gradient between two colours. Gradients are exported inside the SVG, so you can drop the file straight into any design tool and the colours come along. If you need more advanced styling, copy the SVG code and edit it by hand, since blobs are just simple path elements with a fill attribute.
In what format can I download or copy the blob?
You can download an SVG file, copy the SVG markup to the clipboard, or copy a CSS background snippet that uses an inline data URL. The SVG file is the most flexible because it scales to any size without quality loss. The CSS snippet is convenient when you only need a single decorative blob and do not want to add another file to your project. The PNG export option is also there for when you need a raster version.
Are the generated blobs unique?
Each press of the random button produces a new shape using a fresh seed, so the chance of getting the same blob twice is extremely low. If you want a specific shape that you can recreate later, copy the seed value shown next to the preview. Pasting the same seed back into the field will reproduce the exact blob. This is helpful when you are iterating on a design and want to compare variations without losing the one you liked.
Do I have to credit the tool when using a generated blob?
No. The blobs are generated mathematically in your browser and are released for free use in personal and commercial projects. There is no licence to attach, no watermark and no attribution requirement. Treat the SVG output as your own work once you save it. This makes the tool a quick way to add a touch of decoration to landing pages, social media graphics or app onboarding screens without legal overhead.
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