--- title: Underscore.Js Reviews meta_title: 'Underscore.Js Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 14 reviews by the users' company size, role or industry to find out how Underscore.Js works for a business like yours. aggregate_rating: rating_value: 4.4 review_count: 14 scale: '5' date_modified: '2026-08-09' parent_category: name: Web Frameworks url: https://www.g2.com/categories/web-frameworks --- # Underscore.Js Reviews **Vendor:** Underscore.js **Category:** [JavaScript Web Frameworks](https://www.g2.com/categories/javascript-web-frameworks) **Average Rating:** 4.4/5.0 **Total Reviews:** 14 ## About Underscore.Js Underscore is a JavaScript library that provides a whole mess of useful functional programming helpers without extending any built-in objects. ## Underscore.Js Reviews ### 1. best javascript utility library **Rating:** 5.0/5.0 stars **Reviewed by:** Parth S. | SDE , Small-Business (50 or fewer emp.) **Reviewed Date:** June 05, 2022 **What do you like best about Underscore.Js?** easy to use, well documented and very very powerful functionality. **What do you dislike about Underscore.Js?** documentation is well documented but looks bland, so the documentation ui/ux could be improved **What problems is Underscore.Js solving and how is that benefiting you?** day-to-day javascript chores, like working with arrays, and objects. it makes working with js so much easier and clean. ### 2. Got introduced recently to this library and I really like it. **Rating:** 4.5/5.0 stars **Reviewed by:** Sotiris M. | Frontend Developer, Small-Business (50 or fewer emp.) **Reviewed Date:** January 11, 2021 **What do you like best about Underscore.Js?** Tons of really helpful functions that make your coding quick and easy! Easy to understand and implement. **What do you dislike about Underscore.Js?** It's not really an issue but the documentation page doesn't look very appealing. Me, as a frontend developer (mainly but I also do some backend sometimes) I want to see more color on a webpage. Not too much but just enough to make your eye not get bored :) **Recommendations to others considering Underscore.Js:** I don't think that there is something special to say about it. This library just does its job. It's easy to install it and get started, the documentation is clear and understandable so I highly recommend it to anyone that is looking to this library to give it a try. **What problems is Underscore.Js solving and how is that benefiting you?** I don't have to spend time on writing functions that are already made by someone else and probably the most efficient way :) The project I'm using is still under development and the link below is not working at the moment. ### 3. Solid, efficient tooling **Rating:** 5.0/5.0 stars **Reviewed by:** Robert A. F. | Senior Solutions Developer, Mid-Market (51-1000 emp.) **Reviewed Date:** November 19, 2019 **What do you like best about Underscore.Js?** Many times, I've found myself looking for the most efficient way to perform a process on data. In almost every case, Underscore.JS had a solution already in place. **What do you dislike about Underscore.Js?** This product should have the capacity to deploy part of the tools, rather than the product, as a whole. **Recommendations to others considering Underscore.Js:** This is a solid product that can assist development in a myriad of ways. **What problems is Underscore.Js solving and how is that benefiting you?** Efficient data manipulation. ### 4. best utility library for JS users **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Computer Software | Enterprise (> 1000 emp.) **Reviewed Date:** November 25, 2019 **What do you like best about Underscore.Js?** how all the required utility functions are at once place, you import the library and you have it all **What do you dislike about Underscore.Js?** It is so important and commonly used that probably it should be included or integrated with JS automatically **Recommendations to others considering Underscore.Js:** While using Javascript, Underscore.Js is a must guys. **What problems is Underscore.Js solving and how is that benefiting you?** building our GE transportation's Dashboard's UI with it. ### 5. JavaScript utility belt which is both light weight and awesome **Rating:** 4.5/5.0 stars **Reviewed by:** Ginoy G. | Software Engineer, Information Technology and Services, Enterprise (> 1000 emp.) **Reviewed Date:** April 08, 2019 **What do you like best about Underscore.Js?** UnderscoreJs is pretty lightweight but packs some very useful methods for collection manipulations and templating in javascript. I used _.template() primarily for HTML templating and manipulating objects and collections. Methods like _.pluck and _.shuffle give powerful abstractions to filter arrays of objects without the need for heavy boilerplate code. The _.throttle and _.debounce methods come in handy when you need to throttle and control a burst of potentially repeated user inputs on a webpage. UnderscoreJs is also available on NodeJs platform as a managed dependency via npm registry. **What do you dislike about Underscore.Js?** Certain utility methods provided by underscoreJS are now natively available in latest versions of Javascript (ES6) and some of the newer libraries like Lo-Dash provide better performance over UnderscoreJS. Furthermore, underscoreJs doesn't support custom per-method packages which means the entire library is downloaded regardless of the methods are actually used - this may lead to a performance bottleneck for the application. Underscore as a library lacks lazy-load and evaluation features as supported by other libraries like lazyJS and Lo-Dash. **Recommendations to others considering Underscore.Js:** UnderscoreJs is a handy utility library for web applications with support for templating and manipulating javascript objects and collections. It provides a large set of functions that abstract away the need to write boilerplate code for object and collection manipulations in Javascript. It is also lightweight with the production version packaged under 7kb. However, some of the methods offered by the library are now natively available on the latest versions of Javascript (ES6) and in some newer libraries like Lo-Dash which provide better performance over underscoreJs. **What problems is Underscore.Js solving and how is that benefiting you?** I used UnderscoreJs as an in-place, drop-in library for manipulating JS objects, collections and HTML templates for an e-commerce web application where responsiveness is crucial. Methods like _.template, _.throttle were especially useful to present dynamic content on the webpage as well as to orchestrate user interaction. ### 6. Underscorejs provides a bunch of useful javascript utility functions **Rating:** 5.0/5.0 stars **Reviewed by:** Anthony A. | Web Developer, Small-Business (50 or fewer emp.) **Reviewed Date:** September 16, 2019 **What do you like best about Underscore.Js?** The library has as a load of reusable cross-browser functions that perform common operations but with better performance gains **What do you dislike about Underscore.Js?** As a free helper library, I don't think I'd dislike anything about it. **What problems is Underscore.Js solving and how is that benefiting you?** Underscore's usability massively increases productivity and overall performance ### 7. Underscore.js - The Superhero Utility Belt for Javascript **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Construction | Small-Business (50 or fewer emp.) **Reviewed Date:** September 20, 2018 **What do you like best about Underscore.Js?** underscore.js is an excellent javascript library for working with objects and arrays. The library has many methods that make working with this type of data a breeze. They also offer an annotated source so you can dive into the source and learn how the "magic" methods are performed. **What do you dislike about Underscore.Js?** When using a library, the one that I dislike is that it makes things so easy sometimes that you tend to use the library instead of getting a better understanding of the native way of programming the same functions. **Recommendations to others considering Underscore.Js:** you can implement underscore.js or an alternative called lodash. the both are great packages with some really handy tools. **What problems is Underscore.Js solving and how is that benefiting you?** It helps working with objects and arrays in javascript so much easier and it makes programming a bit faster than writing your own native functions. ### 8. User Friendly Library **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) **Reviewed Date:** January 22, 2019 **What do you like best about Underscore.Js?** Developer friendly utility library which does the task of functional operations for any web application. **What do you dislike about Underscore.Js?** For people who are not familiar with functional programming, might require some learning curve. **Recommendations to others considering Underscore.Js:** NA **What problems is Underscore.Js solving and how is that benefiting you?** We use Underscore.Js in the backend development, very convenient to generate the reports for big data. - [View Underscore.Js pricing details and edition comparison](https://www.g2.com/products/underscore-js/reviews?filters%5Bnps_score%5D%5B%5D=5§ion=pricing&secure%5Bexpires_at%5D=2026-08-10+04%3A26%3A21+-0500&secure%5Bsession_id%5D=1a8f689d-eb90-420d-98a0-cfbf68d48a8f&secure%5Btoken%5D=1b22e8ba1fdad8741db0c6d273d98dfa43d4ec168eb226075e0da6fc1590b7b8&format=llm_user) ## Underscore.Js Features **JavaScript Frameworks** - Libraries - Community - Widgets - Browser Support - Graphical Visualization - Mobile Support ## Top Underscore.Js Alternatives - [Essential Studio](https://www.g2.com/products/essential-studio/reviews) - 4.5/5.0 (784 reviews) - [Angular](https://www.g2.com/products/angular/reviews) - 4.5/5.0 (157 reviews) - [Progress Kendo UI](https://www.g2.com/products/progress-kendo-ui/reviews) - 4.4/5.0 (251 reviews)