
HackerRank
Codility
LeetCode
HackerEarth
Coderbyte
DevSkiller
iMocha
CodeSignal is the leading assessment platform for technical hiring.

GridMaker.org
GridMaker.pro
OnlineGridMaker
IG Grid Maker
Art Grid Maker
Canva
Grid Maker Online
The ultimate free grid maker tool. Overlay grids on reference photos, crop to paper sizes, and apply sketch filters. Private, local, and ad-free.
Which is more popular?
Based on our record, CodeSignal seems to be more popular. It has been mentioned 27 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | codesignal.dev | gridmakers.app |
| Pricing | — | |
| Company | — | 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CodeSignal yet.
GridMakers is a free, browser-based tool that brings the traditional grid drawing method into the modern era. While many existing tools rely on outdated web technologies, GridMakers offers a fast, responsive, and seamless experience without the need for downloads or account registration. Key...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodeSignal and GridMakers.app.
GridMakers.app's answer:
GridMakers was born to solve the frustrations of using outdated grid tools. It packs all essential features—like customizable line weights, colors, and opacity—into a modern, lightning-fast web interface. Unlike legacy tools, it's fully responsive (mobile-friendly), requires no account, and is 100% ad-free, making it the most efficient way for artists to prepare their references in seconds.
GridMakers.app's answer:
GridMakers stands out by balancing extreme simplicity with mission-critical features that competitors overlook. While other tools only offer basic lines, GridMakers provides 4 specialized Image Filters designed specifically to help artists see values and structures more clearly. Furthermore, our intuitive 'Paper Handling' settings allow users to preview and adjust how the grid will translate to physical media, ensuring a seamless transition from screen to sketchpad. It’s built by understanding that artists need more than just a grid—they need a better way to visualize their reference.
GridMakers.app's answer:
GridMakers is purposefully designed for three distinct groups of creators, with pre-set configurations optimized for their specific workflows:
Traditional Fine Artists: Those working with oil, charcoal, or graphite who need precise scaling from digital references to physical canvases or paper.
Muralists & Large-Scale Creators: Artists who require specialized grid ratios to manage proportions on a massive scale without losing detail.
Art Educators & Students: Beginners who use the 'Grid Method' to learn about proportions, values, and spatial relationships. By offering pre-set parameters for different media and sizes, GridMakers eliminates the guesswork, allowing artists to focus on their craft rather than technical setup.
GridMakers.app's answer:
GridMakers is built with a focus on high performance and zero-latency image processing. The primary technologies include:
HTML5 & CSS3: Leveraging modern web standards to ensure a fully responsive UI that works seamlessly across desktops, tablets, and mobile devices.
Canvas API: Using advanced hardware-accelerated rendering for real-time grid adjustments and high-resolution image filtering without server-side processing.
Modern JavaScript (ES6+): For efficient, lightweight client-side logic that ensures the tool remains fast and privacy-focused (images are processed locally in the browser).
Progressive Web App (PWA) Principles: Designed to be an 'instant-on' tool that requires no installation or account creation, providing a native-app-like experience in any browser.
Share your experience with using CodeSignal and GridMakers.app. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


CodeSignal is a technical interview and assessment solution that helps organizations identify quality candidates quickly. Our platform allows recruiters and hiring managers to design consistent and well-researched...
What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
CodeSignal is renowned for its standardized coding assessments and a robust IDE. It's an excellent platform for interview preparation and improving coding skills through timed challenges.
We have no reviews of GridMakers.app yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Mention tools like Slack, Zoom, GitHub Highlight remote work experience or team collaboration Link to your portfolio and GitHub Prepare for video interviews and live coding sessions (HackerRank, CodeSignal, etc.). - Source: dev.to / about 1 year ago
When I started, I programmed many different things in different languages. Then, I found a job as a Junior Java Developer and solved tasks on CodeSignal every day. - Source: dev.to / over 1 year ago
Platforms like HackerRank and CodeSignal host challenges that not only hone your skills but also can put you on the radar of tech companies looking for talent. - Source: dev.to / over 2 years ago
Tracking GridMakers.app since Dec 2025.
When comparing CodeSignal and GridMakers.app, you can also consider the following products.

HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
Compare HackerRank to CodeSignal or GridMakers.app:

Split any image into Instagram posts. Create stunning grid effects for your feed. Fast, free, and easy to use online tool.
Compare GridMaker.org to CodeSignal or GridMakers.app:

Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.
Compare Codility to CodeSignal or GridMakers.app:

Create accurate drawing grids with our free grid maker online. Customize lines, scale photos, and transfer images with better proportions. No signup required.
Compare GridMaker.pro to CodeSignal or GridMakers.app:

Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to CodeSignal or GridMakers.app:

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.
Compare OnlineGridMaker to CodeSignal or GridMakers.app: