OnlineGridMaker VS Diff Checker

OnlineGridMaker is a free browser-based tool that adds customizable grid overlays to any image — designed specifically for artists, illustrators, art students, and anyone who practices drawing from reference photos.

Why OnlineGridMaker?

Most grid tools are either too basic (fixed grid size, no customization) or require downloading desktop software. OnlineGridMaker runs entirely in your browser — no install, no signup, no image uploads. Your photos stay on your device.

Key Features

Grid Overlay — Add precise grids to any image with full control over rows, columns, line color, line thickness, and opacity.

Perspective Guides — Built-in 1-point and 2-point perspective tools for accurate architectural and object drawing.

Cell Labels — Optional row/column numbering for easy reference when transferring your sketch to paper or canvas.

Instant Download — Export your gridded image as PNG or JPG and start drawing right away.

100% Local Processing — All rendering happens in your browser using HTML5 Canvas. Your images are never uploaded to any server.

Perfect For

Art students learning proportion and scale
Illustrators working from photo references
Comic artists and storyboarders
Hobbyists practicing portrait or still life drawing
Art teachers demonstrating grid method techniques

Pricing

Completely free. No premium version. No signup required. Unlimited use.

Questions & Answers

As answered by people managing OnlineGridMaker and Diff Checker.

What makes your product unique?

OnlineGridMaker's answer

-Unlike most grid tools that only offer basic square grids, OnlineGridMaker combines customizable grid overlays (adjustable rows, columns, color, opacity) with perspective guides for 1-point and 2-point drawing. It also offers optional cell labels (A1, B2 style). Everything runs 100% locally in the browser — no image uploads, no signup, no data ever leaves your device.

Why should a person choose your product over its competitors?

OnlineGridMaker's answer

-Most alternatives either require installing software, force you to create an account, or upload your images to a server. OnlineGridMaker is completely browser-based, free forever with no premium tier, and processes everything on your device. Just open the page, upload a reference image, and start gridding in seconds. It's faster, more private, and zero friction compared to desktop apps or account-gated web tools.

How would you describe the primary audience of your product?

OnlineGridMaker's answer

-Artists, illustrators, art students, and hobbyists who practice drawing from reference photos — especially those learning proportion, composition, and perspective. Also useful for architects, designers, and educators who need quick grid overlays for teaching or planning purposes.

What's the story behind your product?

OnlineGridMaker's answer

-Built by an independent developer who noticed that most free grid tools were either too basic (fixed grids only) or required downloading software. The goal was simple: a professional-grade, free grid overlay tool that respects user privacy by processing everything locally in the browser. No tracking, no uploads, no strings attached.

Which are the primary technologies used for building your product?

OnlineGridMaker's answer

-Pure HTML, CSS, and JavaScript — no frameworks, no backend, no dependencies. Hosted as a static site on Cloudflare Pages for global CDN delivery. The tool uses the HTML5 Canvas API for rendering grids and generating downloadable PNG images client-side.

Who are some of the biggest customers of your product?

OnlineGridMaker's answer

·Art students using it for figure drawing and still life proportion practice

·Freelance illustrators who need quick grid references before starting digital paintings

·Art teachers incorporating it into classroom demonstrations

·Comic artists using perspective guides for background layouts

Social recommendations and mentions

Based on our record, Diff Checker seems to be more popular. It has been mentiond 9 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

OnlineGridMaker mentions (0)

We have not tracked any mentions of OnlineGridMaker yet. Tracking of OnlineGridMaker recommendations started around May 2026.

Diff Checker mentions (9)

Katakana issue?
Another interesting point: I copied both my answer and the suggested answer into diffchecker.com, and it said they were the same. Source: almost 3 years ago
16.0.3 Prod Keys finally dumped
Never knew diffchecker.com was a thing. Thank you so much for making me aware of it <3. Source: about 3 years ago
How to convince someone lossless compression is possible?
In what way did you show the file comparison? Did you use a diff like diffchecker.com ? If someone can see for themselves that every bit of data between two files is exactly the same, and still thinks they are different, IDK how you could get past that. x == x is pretty fundamental. Source: over 3 years ago
Advanced Diff Checker?
How do I find the actual difference between two strings that appear equal to the naked eye? I used multiple tools and some show no differences, but some show differences. I got diffs on diffchecker.com, but it just shows me that they are different, but not how they differ. Is there a better tool for this? Source: over 3 years ago
Is there a library that allows to easily do diffchecks between two json?
I am wondering if there's something that allows you to easily display differences between two json like on diffchecker.com. Is there a library that allows you to easily do that? Source: almost 4 years ago

What are some alternatives?

When comparing OnlineGridMaker and Diff Checker, you can also consider the following products

GridMaker.org - Split any image into Instagram posts. Create stunning grid effects for your feed. Fast, free, and easy to use online tool.

Beyond Compare - Beyond Compare allows you to compare files and folders.

IG Grid Maker - With our free online tool, you can easily create beautiful Instagram grids and puzzles in seconds. IG Grid Maker is perfectly adapted to 2025 Instagram updates, no registration or software download required.

WinMerge - WinMerge is an open source differencing and merging tool for Windows.

Canva - Canva is a graphic-design platform with a drag-and-drop interface to create print or visual content while providing templates, images, and fonts. Canva makes graphic design more straightforward and accessible regardless of skill level.

Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.

Compare OnlineGridMaker VS Diff Checker and see what are their differences