Smart Slice
Slice images equally by grid (e.g. 9-grids) or split custom layouts precisely with adaptive guides. Employs local OpenCV.js computer vision to auto-detect edges of multiple stickers or items and export high-res ZIP packages.
100% Local Image ToolA privacy-first online image editor and creator. Tailored for social media graphic layouts, supporting powerful multi-photo collage makers and smart grid dividers (nine-grid, AI object slicing). All tools run fully inside your local browser.
Collage Tool
Slice ToolAll tools run 100% locally in your browser. Zero server uploads, absolute privacy.
Slice images equally by grid (e.g. 9-grids) or split custom layouts precisely with adaptive guides. Employs local OpenCV.js computer vision to auto-detect edges of multiple stickers or items and export high-res ZIP packages.
Multi-photo creative collage editor. Built-in layout templates, custom margin & spacing, canvas ratio presets for all social feeds, filter parameters, shape masks, stickers, copyrights watermarks, and lossless HD exports.
Explore how to use WoollyPix features to make your photos and social media posts stand out.

Slice any image into 3x3 or 2x2 grids instantly, optimized for Instagram, WeChat, or Xiaohongshu feeds.

Combine travel photos with custom margins, rounded borders, backgrounds, text badges, and text watermarks.

Uses local OpenCV.js computer vision to auto-detect edges of multiple stickers or items and crop them in batch.

Manually adjust and drag vertical and horizontal grid lines to split long infographics, mangas, or comics.
A lightweight online image toolbox designed for efficiency and absolute privacy
Supports equal grid columns/rows, high-precision guide-line dragging, and OpenCV smart object extraction.
All calculations execute locally in your browser sandbox, eliminating server uploads and leakage risks.
Zero registrations or login walls. Start editing instantly with a clean, distraction-free environment.
Optimized for desktop operations and adapted perfectly for mobile browsers, iPads, and WeChat WebViews.
Common questions about using WoollyPix, privacy safety, and details
Yes. All image collage, cropping, and slicing utilities provided are 100% free of charge, with no forced watermarks or image resolution limits.
Extremely safe. We prioritize your privacy. All processing runs locally inside your browser—no files are uploaded to our servers, and the tools work fully offline.
No. To offer a pure utility experience, we require no accounts or registrations. Simply open the website and start editing immediately.
Smart Slice supports custom column/row grids (ideal for nine-grid grids) and embeds OpenCV.js AI algorithms to detect individual shapes or products within a photo for separate cropping.
Since all configuration stays local, custom templates are stored securely in your browser's Local Storage. Clearing your browser cache or switching devices will remove this cached template data.
Professional tutorials for social media layouts, image collages, and privacy security
guideWhen posting on Xiaohongshu, WeChat, or Instagram, perfect image sizing and slicing can dramatically boost your engagement. Learn how to use smart image dividers to create stunning grids.
privacyWhen editing ID photos or sensitive diagrams, are your images leaked to cloud servers? Learn how client-side browser tools protect your data physical-level security.
collageToo many photos and don't know where to start? Learn 5 professional grid layout secrets and leverage custom templates, masks, and watermarks to design eye-catching posters.