~Sunday 20th of June 2021~

Welcome to UkuWorld!

Viva La Ukulele

UkuWorld is the center for all your ukulele needs! Tune your ukulele with our advanced UkuTuner. Practice chords with UkuChords and step up your game by learning ukulele scales at UkuScales. Don't know where start? Go over to UkuGuides and read some of the comprehensive guides or just go over the quick tips. In the end, above all, enjoy playing your favorite songs on your ukulele with UkuTabs where you can find a huge amount of songs available at your fingertips.


I’m Jonas!

Hi! My name is Jonas. I’ve been an ukulele fanatic for quite a few years now. I’ve been studying music since I was 6 years old and started playing the piano at the academy a while after that. After the piano I started learning to play the acoustic guitar on my own, mainly finger style (novice/intermediate) and some occasional pop songs. After a few years of playing the guitar I had a very impulsive moment and picked up my first ukulele at a local music shop which was for some reason still open at 10 pm. It was the cheapest Makala ukulele in plain laminated mahogany. I quickly learned that I needed to get a better ukulele: one that stays in tune, has more volume, better intonation, sustain…


After a lot of research, which was quite scarce back in the day, I found the perfect ukulele at TheUkuleleSite (formerly known as Hawaii Music Supply): a limited edition tenor Kala with a solid cedar top and solid golden acacia back and sides. I absolutely LOVE it, it is an incredible little thing. I still have it till this day. I store it in a vintage tweed ukulele case from the lovely people over at TheUkuleleMovement.

So after all those years my main instrument has become… a ukulele. What was the incentive for this website? Well, at first I was actually building a personal ukulele tabs and chords website, so that I’d have some kind of “online sheet music book” which I can access from everywhere: on my computer, someone else’s computer, my smartphone,… This little project of mine is however growing bigger everyday!

I had some history in freelance website developing and founded a webhosting company once, so I took the challenge to build a website with ukulele tabs and chords in March 2012. Several years later UkuWorld has grown to one of the largest ukulele related network online which besides songs on UkuTabs also includes powerful but easy to use tools which are completely free (and will stay like that).

Technical Aspects

I feel obliged to also tell you something about how the UkuWorld Network works in the background. Everything is build on the WordPress framework, you know that blogging software? It’s using the core functionalities of WordPress, since for example UkuTabs obviously isn’t just a “blog”. Using WordPress offers lots of options: it is open source, easy to write plugins for it, use existing plugins, easy to modify, stable… I know my way around HTML, CSS, PHP and JavaScript just enough to make some things happen, e.g. the chord highlighting in tabs and when you hover over them you can see the chord diagram, the ukulele tuner, chord library, scales, etc… UkuTabs is also using the last.fm API and musicbrainz database to retrieve the artist biographies, pictures, album name and album images.

Serverside, all of the UkuWorld websites are hosted on their own dedicated servers over at DigitalOcean. The dedicated server is located in the Piscataway (New Jersey) datacenter from Digital Reality. DigitalOcean is one of the fastest growing brands in the webhosting business when it comes to cloud-VPS (Virtual Private Servers) and dedicated servers. You got to love their dedicated support and great expertise.


Although I’m not a server administrator by trait, all servers are set up and managed by myself for maximum control and it allows me to increase my server administrating experience. The UkuWorld servers are running on 64-bit Linux (Ubuntu) operating software, NGINX, with pure SSD hard disks (for incredible I/O speed), lots of RAM and the best Intel CPU cores. All servers are constantly updated and dynamically tuned, including REDIS caching, to maximize performance.

Security wise I have installed Let’s Encrypt certificates which automatically renew for all websites within the UkuWorld network. The strongest configuration is used (strongest ciphers, 4096-big group Diffie-Hellman parameters…). A firewall is installed, which I have configured myself to ensure that it is as optimized as possible. A whole set of other security measures are in place, but to keep everything as secure as possible I prefer to keep these private. Feel free to check the A+ security rating on any of the UkuWorld websites SSL Labs.

Green Tech

Being ‘green’ and carbon-neutral is very important to me. While DigitalOcean is not the ‘greenest’ hosting company out there, it definitely tries to be as energy efficient as possible. The servers I use are all hosted in their Piscataway (New Jersey) data center. This specific data center has been LEED Gold certified since it opened late 2010.

One example why the datacenter is LEED Gold certified is the usage of 80 PLUS Platinum or Titanium server power supplies. 80 PLUS is a voluntary certification program intended to promote efficient energy use in computer power supply units (PSUs). Launched in 2004 by Ecos Consulting, it certifies products that have more than 80% energy efficiency at 20%, 50% and 100% of rated load, and a power factor of 0.9 or greater at 100% load. Such PSUs waste 20% or less electric energy as heat at the specified load levels, reducing electricity use.

Say Hi!

Want more info about something? Or just want to say hi? Always feel free to use the contact form to send me a message.