Meet Jack.

Content management for human beings.

Meet Jack. Jack is a home-grown Content Management System (CMS) that allows you to manage a website with ease. Jack was created from the notion that you shouldn’t have to be a rocket scientist to manage a website. It has been in active development since 2008.

Jack isn’t particularly demanding either. It runs on Linux, Apache, PHP5 and MySQL, a software bundle which is supported by pretty much every hosting provider out there.

Jack adapts

Jack adapts to the design of your website, not the other way around.

Social Media

Facebook, Twitter, Instagram? Jack’s got your back. Integration of social media – through ‘like’-buttons for example – is rock solid.

Jack can flex

Intranet, webshop, guestbook, blog or integration of Social Media? Anything is possible. Jack’s modular design makes it a viable solution for a plethora of websites.

Search Engine Optimized

Built in support for web techniques like metatags, mod_rewrite, robots.txt and sitemap.xml helps your site get a higher Google ranking.

Google™ Analytics™

Know your visitors. With integrated support for Google™ Analytics™ detailed statistics are only an arms-length away.

Dynamic Image Scaling

Jack takes care of scaling and caching of your website’s images by using Dynamic Image Scaling technology, so you don’t have to worry about dimensions. Added benefit? Future redesigns of your website won’t have you reupload every image, dimensions are set in the code!

¿Habla español?

Jack does! In fact, Jack is fluent in just about any language. Even after your site has been built and launched.

Other features

Jack is built on a transparent database schema, which is easily accessible and exportable with tools like phpMyAdmin.

It’s hard to keep count but Jack powers over a hundred websites.

Listing them all would be a little much, but here’s a few we like.

So who’s using Jack? Meet the agencies, developers, designers, consultancies and studios whom rely on Jack every day to help them help their clients.




Alsjeblaft! is an Amsterdam based webdevelopment studio with a knack for HTML5, CSS, PHP, MySQL, jQuery and Jack – our home-made CMS.



Ervaren seniors met jongehonden-mentaliteit

Wij zijn niet zo bekend als de grote bureaus, maar we hebben wel de ervaring van deze bureaus. Want daar hebben we jarenlang gewerkt. Onze belofte: we zijn een klein bureau waar je met zeer ervaren seniors werkt in plaats van een groot bureau waar je met relatief onervaren juniors werkt.



Daadkracht, strategie, content & creatie

Boomvanmourik is een bureau voor daadkracht, strategie, content & creatie. Door een heldere positionering te koppelen aan een creatieve vertaalslag naar campagne, programma’s en communicatiemiddelen zorgen wij voor strategisch, inhoudelijk én visueel onderscheid.


Het Rijk der Verbeelding


We are a network of independent brand strategists, innovators, organisation developers and text and image artists.



Wij zijn MCR. Reclamebureau.

MCR is een reclamebureau in het hart van Den Haag. Sterk in marketingcommunicatie, van merkidentiteit, positionering en concept tot ontwerp, uitwerking en productie.


Rotterdams Collectief

Creative design agency

Concepting new ideas | developing strategic campaigns | creating brand value in urban development | sustainability | hospitality | urban farming | placemaking new urban areas.


Studio Pino

Grafisch ontwerp

Studio Pino is an Amsterdam-based (graphic) concept and design studio. We design, envision and create magazines, books, artwork, websites, clips/films, campaigns and identities.


Van Tongeren

Strategie, online communicatie en creatie

Inspired to discover the essence and strength of companies and organizations and translate them into strong brands, online communication and content. Van Tongeren is part of creative network Bondgenoten.


Via Veneman

Strategie- en communicatieadvies

Communicatiestrateeg met een groot netwerk van creatieven, merkontwikkelaars, strategieconsultants en webdevelopers. Naast het initiëren en begeleiden van strategische merksessies sterk in de vertaalslag en uitwerking: concepten en campagne, marketing en communicatiestrategie en productie van communicatiemiddelen.