CodeUtil.dev
SamToolkit
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DevsBox
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DevToolKit.site
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Fast, free developer tools. JSON formatter, Base64, JWT, Regex and more. Runs 100% in your browser.

Liveblocks
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v0.dev
Next.js
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Add powerful real-time and multiplayer features to your product with Velt's easy-to-use collaboration SDK. Integrate comments, live cursors, and more in minutes.

Which is more popular?
Based on our record, Velt seems to be more popular. It has been mentioned 12 times since March 2021.
Website, pricing, platforms and company facts side by side.
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CodeTray.dev
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| Website | codetray.dev | velt.dev |
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What each product offers, as listed by its team.

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

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

Share your experience with using CodeTray.dev and Velt. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking CodeTray.dev since Jun 2026.
We started with a simple canvas and turned it into a fully collaborative whiteboard. Along the way, we added real-time cursors, presence, comments, notifications, and even voice huddles using Velt. Instead of building sync logic and... - Source: dev.to / 5 months ago
Velt is a collaboration SDK that lets you add real-time features like comments, presence, and notifications directly into your product. Instead of building backend infrastructure for multi-user sync, conflict resolution, and event... - Source: dev.to / 5 months ago
Velt lets you skip all of that. You plug it into your app and get comments, presence, notifications, and shared context immediately. You don’t worry about syncing users or handling concurrent updates. Your code stays focused on the UI... - Source: dev.to / 5 months ago
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