date-fns
Moment.js
Luxon
js-Joda
Next.js
Nuxt.js
CakePHP
2kB JavaScript date utility library

PRAXIS Technology Escrow
Rightsline
ANAQUA Corporate
Company Portfolios Revealed
Annuity Payer
Hack Lang
Cortellis
Source code escrow for developers

Which is more popular?
Based on our record, Day.js seems to be a lot more popular than Codekeeper. While we know about 43 links to Day.js, we've tracked only 1 mention of Codekeeper.
Website, pricing, platforms and company facts side by side.
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Day.js
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| Website | day.js.org | codekeeper.co |
| Pricing | ||
| Company | — | Startup from The Netherlands · 10 - 19 employees |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
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Codekeeper - Source Code Escrow Platform Demo
How often each product is chosen within a category, 0–100% relative to the other.

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

Date strings. ISO 8601 timestamps like "2026-04-27T10:00:00Z" are string to the converter. If you're parsing them with date-fns or dayjs, you'll want to change those to Date in your final types. - Source: dev.to / 6 months ago
Dayjs - Fast 2kB alternative to Moment.js with the same modern API. - Source: dev.to / 8 months ago
I think the JS Date class should be avoided for anything related to DateTime. Instead, use one of the established libraries: Moment.js or Day.js. And in the near future, use the successor of Date, the new Temporal API. - Source: dev.to / 12 months ago
I had a similar requirement recently and ended up going with CodeKeeper (https://codekeeper.co/), mainly because they had a portal that seemed mostly self-serve. Because they are based in The Hague, and because my client had domestic... - Source: Hacker News / 10 months ago
When comparing Day.js and Codekeeper, you can also consider the following products.

date-fns provides the most comprehensive yet simple and consistent toolset for manipulating JavaScript dates in a browser & Node.js.
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PRAXIS Technology Escrow is a platform that provides Software Escrow service to make it easy for you to keep your investment away from risk.
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Parse, validate, manipulate, and display dates in JavaScript
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Rightsline consolidates your entire data and contracts in one place.
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Application and Data, Libraries, and Javascript Utilities & Libraries
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ANAQUA Corporate is a property management software that helps to streamline its operations and offers strategic decision making.
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