
CodePen
JSFiddle
Khan Academy
replit
CodeCrystals is a Free frontend coding website featuring a powerful editor and Live Hosting. Additional features include having the ability to browse through others' projects, communications, and much more.

LaunchDarkly
ConfigCat
Unleash
Split.io
Growth Book
Flagship.io
DevCycle
Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Which is more popular?
Based on our record, Flagsmith seems to be more popular. It has been mentioned 13 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | code-crystals.tk | flagsmith.com |
| Pricing | ||
| Platforms | — | |
| Company | 2021 | 2018 |
| Listed in |
In their own words, as submitted to SaaSHub.


The editor used in CodeCrystals is the most powerful editor on the internet. Complete with the Emmet and Autocomplete extensions, you are ensured to have a wonderful time coding in a nice environment. Watch the in-browser and live preview updates almost as fast as you can code. CodeCrystals has a...
No description of Flagsmith yet.
What each product offers, as listed by its team.


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
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Code-Crystals.tk and Flagsmith. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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BlogBackSign inBlogThe 8 best free and open-source feature flag servicesPosted byThe best open-source feature flag tools1. PostHogWhat is PostHog?Supported librariesHow much does it cost?2. UnleashWhat is...
Recommendations tracked on public social media and blogs since March 2021.


Tracking Code-Crystals.tk since Mar 2021.
Considering all these points, the team at Flagsmith has developed a feature flag management platform Flagsmith and made it open source. The core functionality is open and you can check out the GitHub repository here. I have utilized and... - Source: dev.to / over 2 years ago
Flagsmith - Release features with confidence; manage feature flags across web, mobile, and server side applications. Use our hosted API, deploy to your own private cloud, or run on-premise. - Source: dev.to / almost 4 years ago
Flagsmith is written in Django and is open source as well: https://flagsmith.com. Source: about 4 years ago
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ConfigCat is a developer-centric feature flag service with unlimited team size, awesome support, and a reasonable price tag.
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Khan Academy offers online tools to help students learn about a variety of important school subjects. Tools include videos, practice exercises, and materials for instructors. Read more about Khan Academy.
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Unleash is an open-source feature management platform. We are private, secure, and ready for the most complex setups out of the box.
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