
Zeal
Dash for macOS
Devhints
CSS-Tricks
CodePen
Carbon
Can I use
Open source API documentation browser with instant fuzzy search, offline mode, keyboard shortcuts, and more

DateCalc.xyz
Date Calculator Pro
CountBusinessDays
clocks.life
Working Days Calc
DayCounter.io
Calendar With Islamic Dates
Free days calculator and day counter: find what date is any number of days from today, count the days between two dates, and count down to any event.
Which is more popular?
Based on our record, DevDocs seems to be more popular. It has been mentioned 132 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | devdocs.io | dayscalculator.io |
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In their own words, as submitted to SaaSHub.


No description of DevDocs yet.
Count the days between two dates, find what date is any number of days from today, or track the days until an event — instantly, in your timezone. Includes business days, weeks/months from today, days since/until a date, and free printable calendars.
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
No analysis of Days Calculator yet.
Walkthroughs and reviews on video.
DevDocs - An API Documentation Browser
No Days Calculator videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


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


DevDocs (open source, free) is a local offline documentation viewer. There is a hosted version that can be used offline in a web browser. - Source: dev.to / 5 months ago
This isn't a new idea for developer tools. DevDocs, Zeal, and Dash have offered offline documentation browsing for years. What's new is applying this architecture to AI agents — giving your coding assistant the same offline, instant,... - Source: dev.to / 8 months ago
DevDocs the minimalist doc reader for when Stack Overflow doesn’t have the answer. - Source: dev.to / over 1 year ago
Tracking Days Calculator since Aug 2026.
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Dash is an API Documentation Browser and Code Snippet Manager. Dash searches offline documentation of 200+ APIs and stores snippets of code. You can also generate your own documentation sets.
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This date calculator helps to add or subtract days, weeks, months, and years to/from a given date for accurate time adjustments, planning, and managing events.
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