
AI Image Splitter
SplitImage.app
ImageSplitter.org
Free Instagram grid planner — preview your feed before posting, drag to rearrange, split photos into 9-grid puzzles or carousels. Export in 4:5 portrait format (1080×1350px). No watermark, no account required.

SplitImage.app
ImageSplitter
AI Image Splitter
Instagram Grid Maker
Photopea
Split an Image
ImageSplitter.org
Split images into clean, evenly sized pieces for printing, collages, and crafts. Free image splitter with single or ZIP download — no upload, 100% private.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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| Website | grid34sync.com | splitimage.io |
| Pricing | ||
| Company | Startup from Singapore · 2026 | Startup from China · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Grid34Sync is a free Instagram grid planner that lets you upload photos, drag to rearrange, and preview exactly how your profile will look before posting. Key features: - 9-Grid Maker: split one photo into 9 seamless tiles for a puzzle feed effect - Carousel Maker: split a wide photo into 2 or 3...
SplitImage.io is a free, browser-based image splitter for Instagram grids and carousels, TikTok profile banners, and custom layouts. Preview the result, adjust the crop, then download numbered images as a ZIP. Images are processed locally in your browser. Its image-processing engine is open source.
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
No analysis of SplitImage.io yet.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing GRID34SYNC and SplitImage.io.
GRID34SYNC's answer
Most Instagram planners still show the old square grid — Grid34Sync previews your profile in the real 4:5 portrait format Instagram now uses, so what you see is exactly what followers see. It also combines three tools in one: a drag-and-drop feed planner, a 9-grid puzzle maker (split one photo into 9 seamless tiles), and a carousel maker (split a wide photo into 2–3 slides). Everything runs in the browser — no app download, no account, free for preview.
SplitImage.io's answer:
SplitImage.io combines a general image splitter with tools for Instagram profile grids, seamless carousels, and TikTok profile banners. Users can preview the layout, adjust the crop, and export numbered images. Image processing happens locally in the browser, and the processing engine is available as a separate open-source project.
GRID34SYNC's answer
Most Instagram planning tools (Planoly, Later, Preview) require an account just to get started. Grid34Sync lets you plan, rearrange, and preview your feed instantly — no sign-up required.
Unlike single-purpose grid splitters, it combines feed planning, 9-grid puzzle creation, and carousel splitting in one place. It also uses Instagram's actual 4:5 portrait display format, so you see exactly what your followers see. Pro plan ($9.9 one-time) unlocks watermark-free exports and Instagram direct publishing.
SplitImage.io's answer:
Choose SplitImage.io when you need to turn one image into aligned, ready-to-post pieces without measuring and cropping each tile manually. You can check the result before downloading, use layouts designed for social profiles and carousels, and get the images in a numbered ZIP. Your source image stays on your device during processing.
GRID34SYNC's answer
Grid34Sync is built for Instagram creators and small business owners who care about how their profile looks as a whole — not just individual posts.
This includes: - Content creators and influencers planning a cohesive aesthetic grid - Small businesses using Instagram as their storefront - Social media managers who need to visualize feed layout before publishing - Anyone experimenting with 9-grid puzzle feeds or panoramic carousels
Typically users who find Grid34Sync frustrating with subscription-based tools like Planoly or Later, and want a fast, no-login alternative that runs entirely in the browser.
SplitImage.io's answer:
SplitImage.io is primarily for content creators, social media managers, designers, and small businesses preparing Instagram grids, carousels, or TikTok profile banners. It also helps anyone who needs to divide an image into evenly sized pieces for print, crafts, or digital assets.
GRID34SYNC's answer
Grid34Sync was born out of frustration.
I wanted to plan my Instagram feed, but every tool I tried was either expensive, bloated with features I didn't need, or forced me to finish arranging photos before I could see how they actually looked togeher.I'd spend an hour planning, render the preview, hate it, and start over.
I just wanted something simple: drag photos, see the grid update in real time, done.
So I built it. What started as a personal WYSIWYG feed planner grew into a full toolkit — puzzle feeds, carousel splitting, a blank tile generator that pulls colors directly from your photos so your grid stays harmonious without hunting for matching images online.
The last piece was accuracy. Most tools still preview Instagram grids as squares. But Instagram updated its display to a 4:5 portrait format in 2025 — so we built around that from the start. What you see in Grid34Sync is what your followers actually see.
No tutorials needed. No subscription required to get started. Built by someone who hates reading manuals, for everyone else who does too.
SplitImage.io's answer:
SplitImage.io started with a practical goal: make it easier to turn one image into several aligned files without manually cropping and naming every piece. The project expanded from general image splitting to workflows for social media grids, carousels, and banners. Its image-processing core was later released separately as the open-source SplitImage Engine.
GRID34SYNC's answer
Honestly? I'm not a developer. Grid34Sync was built entirely with the help of AI — Claude and Codex handled the code, I handled the product vision and quality control.
The actual stack underneath: Next.js 15, TypeScript, Cloudflare Workers, Tailwind CSS. But the real technology is: a non-technical founder stubborn enough to ship anyway.
SplitImage.io's answer:
The frontend uses HTML, CSS, and vanilla JavaScript with ES modules. Image processing uses browser Canvas, File, and Blob APIs, including the open-source SplitImage Engine. Cloudflare Workers serves the site and handles supporting endpoints; images are split and packaged in the browser.
GRID34SYNC's answer
Grid34Sync is in early stage — our current users are individual Instagram creators and small business owners who discovered the tool through word of mouth. No enterprise clients yet.
SplitImage.io's answer:
We have not publicly named or ranked individual customers.
Share your experience with using GRID34SYNC and SplitImage.io. For example, how are they different and which one is better?
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