Top Open-Source Frameworks for
WordPress Plugin & Theme Developers

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CMB2

Toolkit for building metaboxes, custom fields, and forms.

CMB2 framework powers 602,680+ websites and is used by 183 #plugins & 5 #themes on #WordPress.org.
Pop-Up CC Click
300
2.30
9,163

Feedbacks and Reviews
30
0.00
636

Fancy Top Bar Countdown
50
5.00
2,203

Book Review Library
900
4.80
23,290

WordPress Instant Articles
1,000+
4.90
8,704

Yonderbound Widget
10
5.00
156

WP Cookies Enabler
40
5.00
468

DaTask
0
0.00
560

Video Background
10,000+
4.80
71,597

TF Random Numbers
5,000+
5.00
21,605

WP Load More Posts
700
5.00
5,296

Mimo Carousel
90
1.00
1,869

WP Facebook Pixel
4,000+
4.60
21,859

Mimo Colors
100
0.00
963

Html5 Audio Player
3,000+
5.00
18,317

Pop-Up CC Scroll
500
4.30
6,401

Pop-Up CC Exit
1,000+
4.20
10,889

rtd-client-testimonial
10
5.00
275

Solutions Invoice Manager
0
0.00
445

Draw Attention
4,000+
4.90
30,992

Commons Booking
80
5.00
1,183

AdThrive Ads
1,000+
0.00
8,623

Waving Portfolio
2,000+
3.80
42,374

Church Metrics Dashboard
20
0.00
473

WP-Gistpen
100
5.00
1,343

DW Knowledge Base
300
5.00
3,401

CRM: Contact Management Simplified – UkuuPeople
800
5.00
11,711

Responsive Pricing Table
20,000+
4.50
131,413

Venngage Infographics
600
3.70
3,277

Pricing Table
1,000+
5.00
10,061

Etsy Importer
500
3.90
6,817

Minimal Responsive Pricing Table
100
5.00
1,426

Awesome Studio
30
3.70
2,435

Contempo Real Estate Custom Posts
4,000+
4.70
39,577

Big Boom Directory
80
5.00
2,164

Mooberry Book Manager
1,000+
4.60
38,253

WP Vote
30
0.00
716

Client and Product Testimonials
200
5.00
1,580

Better Admin Pointers
100
4.20
1,851

Sliced Invoices – WordPress Invoice Plugin
2,000+
4.80
38,103

X-tra Ordinary WooCommerce Product Carousel and Slider
300
3.70
6,109

WP Secure Maintenance
700
5.00
7,592

WDS Theme Switcher
10
5.00
236

Crazy Player
400
5.00
2,768

Form Data Collector
100
0.00
1,093

Mortgage Calculator
100
5.00
785

Ultimate Popup Free
800
4.20
6,988

WordPress PDF Light Viewer Plugin
8,000+
3.60
132,194

Mimo Social
0
0.00
180

Give – Donation Plugin and Fundraising Platform
30,000+
4.80
332,622

Genesis Featured Images
1,000+
4.50
23,642

Pricing Tables Pro
100
3.00
1,789

Facebook Pixel – Pixel Cat (Formerly "Facebook Conversion Pixel")
60,000+
4.00
319,431

Wp Maps
100
0.00
2,204

Html5 Video Player
1,000+
5.00
9,739

WPCasa
2,000+
4.40
16,418

Gallery – Photo Gallery – Image Gallery
3,000+
4.40
43,126

Wprong Testimonial Slider
60
5.00
749

Ultimate Member Profile Tabs
2,000+
3.70
14,918

AMO for WP – Membership Management
20
0.00
671

WDS Simple Page Builder
100
5.00
1,563

ResultPress
100
5.00
1,664

Contact Free CC
20
0.00
629

Timeline Express
10,000+
4.50
304,037

Slideshow – Images Slideshow, Image Slider
4,000+
4.10
62,455

Responsive Testimonials
400
5.00
2,755

LearnDash Topic Progression Using Storyline/Captivate
300
4.00
1,887

WP Art Store
50
0.00
1,066

Srizon Facebook Video Gallery
900
4.80
2,987

Zenith Slider
10
0.00
276

Recipe Hero
1,000+
4.20
17,532

Pinit: Pinterest for WordPress
400
4.70
3,395

Autoswitch Image
10
5.00
383

WordPress Ultimate Gallery
1,000+
5.00
3,281

BuddyExtender
300
5.00
2,084

WP NoteUp
300
5.00
1,773

WPSponsorship
10
5.00
520

Project Panorama
900
4.10
20,664

Gallery Box
2,000+
5.00
15,208

PL Car Dealer
50
5.00
1,760

Glossary
700
4.80
11,081

WP List Gists
0
5.00
321

WP Owl Carousel
1,000+
4.30
8,589

WP Exit Optin
0
0.00
212

Responsive Modern Slider
50
1.00
1,578

Palto Carousel
100
5.00
795

Hook Flowchart
10
0.00
457

Scroll Progress Bar
500
5.00
2,725

Mega Ad
20
0.00
678

Team Members
2,000+
4.40
14,093

story|ftw
200
5.00
3,466

Maps Builder – Google Maps Plugin
30,000+
4.30
169,380

Keywords to Links Converter
400
3.00
5,026

WP Company Info
100
0.00
1,940

Team Members
20,000+
4.40
94,077

Pop-Up CC
7,000+
3.90
76,369

WooCommerce Fiscalita Italiana
20
0.00
1,778

ST Members List
0
0.00
250

Constant Contact Forms
80,000+
3.10
655,711

Opal Estate
1,000+
4.30
11,618

Rolo Slider
1,000+
5.00
5,438

b2i Investor Tools
10
0.00
413

A Vertical Timeline Responsive
200
5.00
888

Plugin Sponsor Banner
10
0.00
188

Niso Carousel
100
5.00
823

Lightbox – EverlightBox Gallery
3,000+
5.00
17,108

Niso Carousel Slider
300
5.00
1,674

Sharebear
100
5.00
285

Plan My Novel
20
0.00
285

Writer Press Kit
60
0.00
349

WPGiftRegistry – A Wishlist Plugin for Weddings, Birthdays etc.
200
5.00
1,193

Team View
1,000+
0.00
3,921

Best WooCommerce Product Feed
20
3.70
996

Social Networks Links by Performance Foundry
10
0.00
113

Perelandra Sermons
70
3.70
650

MM Comment Field Ratings
10
0.00
124

Infographic Maker – iList
300
5.00
3,595

Content Locker
1,000+
3.20
13,430

FundPress – WordPress Donation Plugin
400
0.00
1,997

REST Importer
0
0.00
125

Portfolio X
100
5.00
2,930

Waterproof Wrap Query
0
0.00
65

Sighted Invoice Manager
0
0.00
87

Languages Frontend Display
50
0.00
366

Firstlook Listing Retriever
10
0.00
178

Easy Photography Portfolio
2,000+
4.60
15,993

CMB2
100,000+
4.90
376,541

CMB2 is a metabox, custom fields, and forms library for WordPress that will blow your mind.

WordPress Project Management by UpStream
1,000+
4.50
6,686

Easy Meta Builder
20
0.00
308

Lite Google Map
0
5.00
67

NutritionWP
90
0.00
682

ICO List Widget
100
0.00
280

Gallery – Photo Gallery and Images Gallery
30,000+
4.50
565,074

Shop Page WP
200
5.00
1,630

Narnoo Operator
0
0.00
522

Auto Listings
200
3.50
1,455

WooCommerce Product Image Gallery Options
1,000+
4.00
3,373

EDD Ajax Filters
0
5.00
250

PeerRaiser – Peer-to-Peer Fundraising Donation Plugin
10
5.00
303

AweBooking – Hotel Booking System
6,000+
3.70
14,185

Multi Order for WooCommerce
0
0.00
106

WP Random Post Thumbnails
7,000+
5.00
8,320

Heartbeat Control
70,000+
4.80
167,506

WP_Places
80
5.00
1,370

WooCommerce Thank You Page – NextMove Lite
100
5.00
920

Sermon Manager
7,000+
4.00
123,196

Color or Image Variation Swatches for WooCommerce
100
5.00
1,082

Mobile Featured Image
100
5.00
490

GamiPress
80
4.80
2,178

BNE Testimonials
5,000+
4.90
28,628

Call Button
10
0.00
103

Smart Overlay
10
0.00
73

BIM-ba
0
0.00
409

Classroom
0
0.00
223

Opal Hotel Room Booking
800
4.10
7,348

EDD Download Pages
0
0.00
183

Admission AppManager
10
0.00
203

MMD Portfolio
0
0.00
48

Events Calendar GForms Registration
0
0.00
47

EDD Ajax Search
20
5.00
335

Advanced Control Manager for WordPress by ItalyStrap
20
5.00
204

LDD Directory Lite
600
4.40
16,769

EDD Quick View
0
0.00
220

WP Smart TV
40
0.00
408

CSSJockey Add-ons
100
4.30
2,635

Finale – WooCommerce Sales Countdown Timer & Discount Plugin Lite
1,000+
4.80
6,674

EDD Infinite Scrolling
0
0.00
231

WP Deadlines
40
5.00
208

Marketplace for WooCommerce
0
0.00
168

BA Event
0
0.00
83

Responsive Tabs
7,000+
4.50
46,224

BeAgency Lite Plugin
200
0.00
239

Easy Responsive Pricing Tables
0
0.00
38

Best Logo Slider
0
0.00
82

Unar Extra
200
0.00
1,331

WP Real Estate
70
0.00
918

WPBMB Entrez
0
0.00
29

Ascend
2,000+
5.00
22,895

Ascend will surpass your expectations over and over again. Amazingly versatile, easily customizable and loaded with features you will love. We built this multipurpose theme with several fresh and original layout options for your website’s header and menus, including a very stylish vertical menu and a stunning transparent header that changes as you scroll.

Maillard
300
5.00
8,518

Maillard is a beautiful WordPress Food Blog theme, that allows food bloggers to position their content, images and recipes in the best light possible.

Bento
8,000+
4.60
97,504

Bento is a powerful yet user-friendly free WordPress theme intended for use in the broadest range of web projects. It boasts premium-grade design and is packed with awesome features, some of which are unique for free themes. Bento is mobile-friendly (responsive), retina-ready, optimized for speed, and implements SEO (search engine optimization) best practices. The theme offers unprecedented customization flexibility through the native WP Customizer interface as well as built-in layouts, including one-page template. Unlimited color combinations for every element of the website, 500+ high-quality vector icons, advanced typography based on Google Fonts, and tons of other cool options and settings make it an ultimate tool for creating websites that are eye-pleasing, unique, and tailored to your needs. The theme offers advanced WooCommerce integration, including page templates, widgets, as well as full checkout funnel styling. Some other small but pleasant features include native infinite scroll, fixed menu options, and detailed settings for customizing the look of each individual page. Bento has been developed by an Envato Elite author who has sold 2000+ premium templates on ThemeForest, the largest marketplace in the industry; the theme implements clean, well-commented, developer-friendly code, and includes detailed documentation and a child theme template. Special attention has been paid to ensuring outstanding UX (user experience) and bringing the best in current web design trends and practices to the widest possible audience. Bento is being constantly maintained by its author and offers regular free updates with bugfixes and additional features.

Quest
4,000+
4.40
190,575

Your Quest for an awesome WordPress theme ends right here. Quest let's you create the website you need without having any coding knowledge. Quest offers a powerful click, drag and drop page builder to help you create amazing pages to showcase your content while offering a slick user interface therein increasing your user experience. Quest also includes powerful and flexible easy to understand and easy to use customization options to customize the entire layout of your site including background images, colors, typography and so on. Build your site now using Quest - blog, portfolio, eCommerce, magazine, photography and so on, Quest doesn't limit you when it comes to your creativity. Quest is built on the famous bootstrap framework which uses a mobile first approach, this will ensure your site works properly on all mobiles, tablets, laptops and desktops. Theme demo is available at http://demo.pacethemes.com/quest/

Zeus
900
5.00
4,726

A simple, minimalist theme. Zeus provides a perfect base for child themes to be built upon.