JUMI PatternMaker vs Seamlessify

JUMI PatternMaker is a free browser-based tool for designing seamless repeating patterns. When an element crosses a tile edge, the editor redraws it on the opposite side, including rotation-aware wrapping. The editor includes shapes, lines, searchable icons, animal and food motifs, stickers, botanical motifs, blobs, text, uploads, and templates. Elements can use solid or gradient fills, strokes, stroke styles, and opacity. Users can upload SVG or PNG artwork as tileable elements, and recolour SVG fills. Patterns export as SVG or PNG at 1000, 2000, 4000, or 8000 pixels, with an option for a transparent PNG background. Work auto-saves in the browser, and editable projects can be saved as JSON and reopened later. Artwork, uploads, and saved patterns stay in the user's browser, rather than being sent to JUMI. Saved work is tied to that device and browser, does not sync, and cannot be recovered by JUMI if browser data is cleared or the device is lost. The tool is optimized for desktop and tablet; creating patterns on a phone requires a larger screen.

Seamlessify turns images into repeating patterns, with PNG, JPG, and batch ZIP exports. The web tool accepts PNG, JPG, and WEBP files, with batches of up to 100 images or 500 MB. For direct stitching, supported images are processed in the browser rather than uploaded to the maker’s image-processing servers. The tool blends opposite edges to soften seams and abrupt color changes, and lets you set the number of rows and columns independently. A 3 × 3 preview helps inspect a repeat; output options include seamless tiles, horizontal rolls, and vertical panels. Downloads are rendered from the original image. AI generation can use a text prompt or derive a prompt from a reference image, but requires an account and credits. The listed models are Z-Image Turbo and Ideogram V4 Tiling, delivered through fal.ai; DeepSeek V4 Flash Vision Experimental analyzes reduced reference images. AI generations and related records are kept privately for up to 30 days before scheduled deletion. The free plan includes two one-time AI credits after email verification and unlimited direct stitching; paid plans start at $8.25/mo (annual).