Kubuntu vs Lubuntu
Kubuntu: Ubuntu with the KDE Plasma desktop. Lubuntu: A lightweight Ubuntu flavour with LXQt. Here is how they differ, and which one suits you.
Quick verdict
- BeginnersKubuntuBoth are beginner-friendly; Kubuntu has a Windows-like layout.
- GamingTieBoth are a similar fit here.
- Older hardwareLubuntuLubuntu needs about 2 GB of RAM versus 4 GB.
- Latest softwareTieBoth are a similar fit here.
- Long-term stabilityTieBoth are a similar fit here.
Specs compared
| Feature | Kubuntu | Lubuntu |
|---|---|---|
| Popularity rank (30d) | #14 | #34 |
| Latest version | — | — |
| Based on | Ubuntu | Ubuntu |
| Release model | Stable | Stable |
| Desktop | KDE Plasma | LXQt |
| Package management | APT · Snap | APT · Snap |
| Init system | systemd | systemd |
| Experience level | Beginner | Beginner |
| Suggested RAM | 4 GB+ | 2 GB+ |
| Architectures | x86_64 | x86_64 |
| First released | 2005 | 2011 |
| Price | Free | Free |
| Good for | Everyday use, Development | Older hardware, Everyday use |
Key differences
- Kubuntu ships KDE Plasma; Lubuntu ships LXQt.
- We suggest about 4 GB of RAM for Kubuntu and 2 GB for Lubuntu.
Choose Kubuntu if…
- kDE Plasma on a widely supported base
- windows-like layout by default
- compatible with most Ubuntu guides
Flavour LTS support is shorter than Ubuntu’s
Full Kubuntu profileChoose Lubuntu if…
- light LXQt desktop
- ubuntu package base
- simple, familiar layout
64-bit only in current releases
Full Lubuntu profileKubuntu vs Lubuntu: FAQ
Is Kubuntu better than Lubuntu?
Neither is better for everyone. Kubuntu is the stronger pick for beginners; Lubuntu for older hardware.
Which uses less RAM, Kubuntu or Lubuntu?
Lubuntu is lighter: we suggest about 2 GB versus 4 GB. The desktop you choose affects memory use more than the distribution itself.
Is Kubuntu based on Lubuntu?
No. Kubuntu is based on Ubuntu; Lubuntu is based on Ubuntu.
Can I switch from Kubuntu to Lubuntu without losing files?
Back up your home folder first. If /home is on a separate partition you can reinstall without formatting it, but a clean install with restored backups is safest.