Day.jsvsMoment.js
Unbiased side-by-side comparison of verified reviews, user ratings, features, and pros/cons to help you decide which software fits your business needs.
Quick answer: Day.js vs Moment.js
In our 2026 comparison of Day.js and Moment.js, the products are too closely matched to name a clear overall winner. Day.js is rated 4.5/5 from 4 user reviews; Moment.js is rated 4.5/5 from 4 user reviews. Day.js has a free plan; Moment.js has a free plan.
Last updated
| At a glance | Day.js | Moment.js |
|---|---|---|
| Category | Development & IT | Development & IT |
| User rating | 4.5/5 (4 reviews) | 4.5/5 (4 reviews) |
| Starting price | Free plan | Free plan |
| Listed features | 14 | 11 |
| Ease of use | 4.5/5 | 4.5/5 |
| Customer support | 5.0/5 | 5.0/5 |
Product Overview
What each platform does and who it's for
Primary Category
The main classification for each product
Editorial Quality Rating
Independent expert panel ratings and quality validations
Day.js
Expert Score
Moment.js
Expert Score
Platform Support
Supported platforms across each product
Day.js
Platform support not specified
No platform details listed for this software
Moment.js
Platform support not specified
No platform details listed for this software
Sentiment & Feedback
Real-world pros and cons from verified users
Day.js Feedback
User sentiment analysis
- A minimalist JavaScript library that parses, validates, manipulates, and displays dates and times with a Moment.js-compatible API but at only 2KB in size .
- Immutable operations prevent accidental mutation of date objects, reducing bugs in complex applications .
- Supports plugins for additional functionality (time zones, relative time, UTC, advanced formatting) while keeping the core library small .
- Works seamlessly with both Node.js and browser environments, and supports TypeScript out of the box with full type definitions .
- While compatible with Moment.js, the API is not identical; some advanced Moment.js features may require plugins or workarounds .
- Timezone support requires the timezone plugin, which adds to the bundle size, though it remains smaller than Moment.js with timezone .
- For extremely complex date calculations or historical date handling, a more robust library (like date-fns or Luxon) may be better suited .
Moment.js Feedback
User sentiment analysis
- Extremely easy to install via various package managers like npm, Yarn, NuGet, and Meteor .
- A well-established and widely-used library for parsing, validating, manipulating, and displaying dates and times in JavaScript .
- Offers a simple and intuitive API for common date operations like formatting, relative time, and calendar time .
- Supports multiple locales and internationalization out-of-the-box for formatting dates and times .
- It is now considered a legacy project with a large mutable API, which can lead to bugs and is no longer the recommended choice by its maintainers for new projects.
- The library is relatively large and heavy for modern web applications, leading to larger bundle sizes compared to alternatives.
- Lacks tree-shaking support, meaning unused parts of the library cannot be easily removed from the final bundle .
Feature Comparison
Detailed side-by-side capability checklist
Day.js
14/21 features
- Database
- Databases
- Developer integrations
- Development tools integration
- Error handling and retry logic
- Developer platform
- Developer tools
- Event-driven architecture
- Lightweight
- Immensely popular 2kB library parsing dates
- String formats
- Timezone offsets
- Open-source
- Open-source development
- Security
- Web development
- Multiple language support
- Clean code architecture
- Code analysis
- Developer-friendly code
- Single codebase
Moment.js
11/21 features
- Database
- Databases
- Developer integrations
- Development tools integration
- Error handling and retry logic
- Developer platform
- Developer tools
- Event-driven architecture
- Lightweight
- Immensely popular 2kB library parsing dates
- String formats
- Timezone offsets
- Open-source
- Open-source development
- Security
- Web development
- Multiple language support
- Clean code architecture
- Code analysis
- Developer-friendly code
- Single codebase
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Pricing & Plans
Compare plans, features, and starting points side-by-side
Day.js Pricing
FreeFree to use. No credit card required.
Moment.js Pricing
FreeFree to use. No credit card required.
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Community Intelligence
Real-time crowdsourced comparison feedback and buyer signals.
Community Matchup Voting
Real-time crowdsourced buyer signals
Community vs. Editorial Alignment
Agreement between algorithmic rating & user voting
Draw
Calculated by features, pricing, support & ratings.
Awaiting Votes
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Head-to-Head Winner Analysis
Data-backed performance comparisons across pricing, features, usability, and support
Matchup Scoreboard
At-a-glance scorecard results
Weighted Overall Scorecard
Normalized composite performance scores
Smart Recommendation Matrix
Head-to-head decision matrix based on your business workflow
- Users wanting a streamlined, user-friendly workspace interface
- Power users requiring a broad range of out-of-the-box advanced features
- Organizations that place high importance on responsive customer support
- Users wanting a streamlined, user-friendly workspace interface
- Organizations that place high importance on responsive customer support
Day.js
Dimension scorecard
Multi-Dimension Performance
Winner Breakdown & Analysis
Tied for overall winner with a composite score of 89%.
Comparable pricing accessibility ($0/mo (No Free Trial)).
Day.js lists the most features (14 features).
Strong usability with a user rating of 4.5/5 stars.
Reliable support with a user rating of 5.0/5 stars.
No data available for this product on this dimension yet.
Moment.js
Dimension scorecard
Multi-Dimension Performance
Winner Breakdown & Analysis
Tied for overall winner with a composite score of 85%.
Comparable pricing accessibility ($0/mo (No Free Trial)).
Offers 11 features (fewer than the category leader).
Strong usability with a user rating of 4.5/5 stars.
Reliable support with a user rating of 5.0/5 stars.
No data available for this product on this dimension yet.
⚖️ Virtually Tied
Day.js and Moment.js are extremely well-matched overall. If Feature Richness is your priority, Day.js has the edge — otherwise, your specific workflow requirements should be the deciding factor.
Composite Score Breakdown
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Frequently asked questions: Day.js vs Moment.js
Which is better: Day.js or Moment.js?
Day.js and Moment.js are extremely well-matched overall. If Feature Richness is your priority, Day.js has the edge — otherwise, your specific workflow requirements should be the deciding factor. Neither product has a decisive overall lead, so the best choice depends on your workflow, budget and required integrations.
How do users rate Day.js and Moment.js?
Day.js is rated 4.5/5 from 4 user reviews. Moment.js is rated 4.5/5 from 4 user reviews. Ratings come from approved user reviews on SoftwareHope.
How much do Day.js and Moment.js cost?
Day.js has a free plan. Moment.js has a free plan. Always confirm current pricing on the vendor's site, as plans change.
Do Day.js and Moment.js offer a free plan or free trial?
Day.js offers a free plan; Moment.js offers a free plan.
Which is easier to use, Day.js or Moment.js?
Day.js has an ease-of-use rating of 4.5/5, Moment.js has an ease-of-use rating of 4.5/5. The difference is small, so both are similarly easy to adopt.
Most Helpful Reviews
Community-voted helpful feedback from verified users
Partnering with Day.js accelerated our development timeline significantly. Their engineering team demonstrated strong technical depth, adhering strictly to milestones and clean coding standards.
Our enterprise infrastructure integration was handled seamlessly by Day.js. Communication was transparent, sprint deliveries were predictable, and architecture reviews were comprehensive.
The technical team at Day.js proved to be dependable and knowledgeable across our full-stack modernization project. They resolved complex integration bottlenecks with high efficiency.
High-caliber engineering services with dependable project management. Day.js consistently delivered quality deliverables with thorough automated testing coverage.
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