Extism
OpenCV
TensorFlow
CImg
OpenGL
PyTorch
MATLAB
Application and Data, Languages & Frameworks, and Language Extensions

GridMaker.org
IG Grid Maker
GridMaker.pro
GridMakers.app
Art Grid Maker
Canva
Grid Maker Online
Add a precise grid overlay to any image for drawing and sketching. Customize rows, columns, line color and thickness. 100% free, no signup, no upload.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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OCL
OpenCL
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|---|---|---|
| Website | en.wikipedia.org | onlinegridmaker.com |
| Pricing | — | |
| Platforms | — | |
| Company | — | Startup from China · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of OpenCL yet.
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...
What each product offers, as listed by its team.

No features have been listed yet.
An editorial look at what each product does well and who it suits.

No analysis of OpenCL yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Episode 1: What is OpenCL™?
More videos
OnlineGridMaker — Free Grid Overlay Tool for Artists
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing OpenCL and OnlineGridMaker.
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.
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.
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.
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.
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.
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
Share your experience with using OpenCL and OnlineGridMaker. For example, how are they different and which one is better?
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TensorFlow is an open-source machine learning framework designed and published by Google. It tracks data flow graphs over time. Nodes in the data flow graphs represent machine learning algorithms. Read more about TensorFlow.
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Create accurate drawing grids with our free grid maker online. Customize lines, scale photos, and transfer images with better proportions. No signup required.
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