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# Knockout.js vs Underscore.Js Comparison - What are their main differences?

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](/compare/knockout-js/underscore-js/export.csv)

Knockout.jsUnderscore.Js[+ Add Product](#)

Reviews

**Knockout.js** [

3.9/5(48)

](https://www.g2.com/products/knockout-js/reviews#reviews)

**Underscore.Js** [

4.4/5(14)

](https://www.g2.com/products/underscore-js/reviews#reviews)

Pricing

**Knockout.js**
No pricing available

**Underscore.Js**
No pricing available

**Pricing Insights**
from reviews

Time to Implement

**Knockout.js**
Not enough reviews yet

**Underscore.Js**
Not enough reviews yet

Return on Investment

**Knockout.js**
Not enough reviews yet

**Underscore.Js**
Not enough reviews yet

Perceived Cost

**Knockout.js**
$$$$$

**Underscore.Js**
Not enough reviews yet

Average Discount

**Knockout.js**
Not enough reviews yet

**Underscore.Js**
Not enough reviews yet

Pros & Cons

**Knockout.js**
Not enough data

**Underscore.Js**
Not enough data

Ratings

Meets Requirements

**Knockout.js**

8.0

8.040

**Underscore.Js**

8.9

8.914

Ease of Use

**Knockout.js**

8.2

8.241

**Underscore.Js**

8.3

8.314

Ease of Setup

**Knockout.js**

9.4

9.48

**Underscore.Js**
Not enough data

Ease of Admin

**Knockout.js**

8.1

8.17

**Underscore.Js**
Not enough data

Quality of Support

**Knockout.js**

7.6

7.635

**Underscore.Js**

8.0

8.010

Has the product been a good partner in doing business?

**Knockout.js**

6.1

6.16

**Underscore.Js**
Not enough data

Product Direction (% positive)

**Knockout.js**

5.0

5.040

**Underscore.Js**

8.2

8.213

Features

JavaScript Web Frameworks[Hide 6 FeaturesShow 6 Features](javascript:void(0);)

7.4

8

8.6

7

JavaScript Frameworks

Libraries

7.4

7

8.9(won by 1.5)

6

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Community

7.2

6

8.6(won by 1.4)

7

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Browser Support

8.3

5

9.0(won by 0.7)

7

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Mobile Support

7.3

5

8.0(won by 0.7)

5

 (There is a greater than 0.5 difference between this product's rating and its competitors)

Widgets

6.7(won by default)

6

Not enough data

Graphical Visualization

7.3(won by default)

5

Not enough data

User Insights

Reviewers' Company Size

[![Knockout.js](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_481eafaf729e3ca141b5e18a9ba67fa0/knockout-js.png "Knockout.js")](https://www.g2.com/products/knockout-js/reviews)

Knockout.js

Small-Business(50 or fewer emp.)

55.6%

Mid-Market(51-1000 emp.)

40.0%

Enterprise(\> 1000 emp.)

4.4%

[![Underscore.Js](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_d42af4f12a15c641266c8385435885f4/underscore-js.png "Underscore.Js")](https://www.g2.com/products/underscore-js/reviews)

Underscore.Js

Small-Business(50 or fewer emp.)

50.0%

Mid-Market(51-1000 emp.)

28.6%

Enterprise(\> 1000 emp.)

21.4%

Small-Business

(50 or fewer emp.)

55.6%

50.0%

Mid-Market

(51-1000 emp.)

40.0%

28.6%

Enterprise

(\> 1000 emp.)

4.4%

21.4%

Reviewers' Industry

[![Knockout.js](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_481eafaf729e3ca141b5e18a9ba67fa0/knockout-js.png "Knockout.js")](https://www.g2.com/products/knockout-js/reviews)
Knockout.js

Computer Software

42.2%

Information Technology and Services

24.4%

Internet

8.9%

Financial Services

4.4%

Publishing

2.2%

Other

17.8%

[![Underscore.Js](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_d42af4f12a15c641266c8385435885f4/underscore-js.png "Underscore.Js")](https://www.g2.com/products/underscore-js/reviews)
Underscore.Js

Information Technology and Services

28.6%

Computer Software

28.6%

Real Estate

7.1%

Hospital & Health Care

7.1%

Financial Services

7.1%

Other

21.4%

Alternatives

**Knockout.js Alternatives**

 ![Essential Studio](https://images.g2crowd.com/uploads/product/hd_favicon/fb2e30c793c451c67d0e9325e4dbc08e/essential-studio.svg "Essential Studio")

[
Essential Studio
](/products/essential-studio/reviews)

 ![Progress Kendo UI](https://images.g2crowd.com/uploads/product/hd_favicon/9ebcd1b8d635bb15805b3dce64c35d5b/progress-kendo-ui.png "Progress Kendo UI")

[
Progress Kendo UI
](/products/progress-kendo-ui/reviews)

 ![Chart.Js](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_0566d50f2a7bfc4e141d151000761b9d/chart-js.jpg "Chart.Js")

[
Chart.Js
](/products/chart-js/reviews)

 ![Angular](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_98d4e0320aa8550aeeda473f45903fd3/angular.jpg "Angular")

[
Angular
](/products/angular/reviews)

**Underscore.Js Alternatives**

 ![Essential Studio](https://images.g2crowd.com/uploads/product/hd_favicon/fb2e30c793c451c67d0e9325e4dbc08e/essential-studio.svg "Essential Studio")

[
Essential Studio
](/products/essential-studio/reviews)

 ![Angular](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_98d4e0320aa8550aeeda473f45903fd3/angular.jpg "Angular")

[
Angular
](/products/angular/reviews)

 ![Progress Kendo UI](https://images.g2crowd.com/uploads/product/hd_favicon/9ebcd1b8d635bb15805b3dce64c35d5b/progress-kendo-ui.png "Progress Kendo UI")

[
Progress Kendo UI
](/products/progress-kendo-ui/reviews)

 ![Backbone.js](https://images.g2crowd.com/uploads/product/image/thumb_square/thumb_square_3cab69763b90c7310d3833e75885fec8/backbone-js.jpeg "Backbone.js")

[
Backbone.js
](/products/backbone-js/reviews)

## Knockout.js vs Underscore.Js

- Reviewers felt that Underscore.Js meets the needs of their business better than Knockout.js.
- When comparing quality of ongoing product support, reviewers felt that Underscore.Js is the preferred option.
- For feature updates and roadmaps, our reviewers preferred the direction of Underscore.Js over Knockout.js.