Disk Cleaner for Ubuntu: apt, BleachBit, Ubuntu Cleaner, and journalctl

A full root filesystem slows updates, breaks builds, and can freeze the desktop. On Ubuntu you do not need a single proprietary “disk cleaner” to fix that—apt, journalctl, user caches, old Snap revisions, and optional GUI tools such as BleachBit or Ubuntu Cleaner each target different clutter.

This guide covers practical Ubuntu cleaning: see what is using space, reclaim room with terminal commands you can script, install BleachBit from universe, add Ubuntu Cleaner from the gerardpuig PPA when you want a janitor-style app, and preview deletions before you commit. I ran these steps on Ubuntu 25.04 and kept the real output below. Where a tool surprised me—400 MB in apt archives, BleachBit deleting apt lists if you are not careful, Ubuntu Cleaner’s GUI-only interface—the notes sit in the same section.

Tested on: Ubuntu 25.04 (Plucky Puffin); kernel 6.14.0-37-generic.

IMPORTANT

Preview before bulk deletes. BleachBit and Ubuntu Cleaner can remove apt package lists, browser data, or caches your apps still need. On servers, prefer apt and journalctl over blind GUI “select all.”

Quick command summary

Task	Command
Check disk use	`df -h` and `du -sh ~/.cache /var/cache/apt/archives`
Visual disk map (GUI)	`baobab` (Disk Usage Analyzer)
Clear downloaded debs	`sudo apt clean`
Drop obsolete debs	`sudo apt autoclean`
Remove unused deps	`sudo apt autoremove -y`
Journal size	`journalctl --disk-usage`
Trim journals	`sudo journalctl --vacuum-time=7d`
Install BleachBit	`sudo apt install -y bleachbit`
BleachBit preview	`bleachbit --preview apt.clean`
Install Ubuntu Cleaner	`sudo add-apt-repository -y ppa:gerardpuig/ppa && sudo apt update && sudo apt install -y ubuntu-cleaner`
Launch Ubuntu Cleaner	`ubuntu-cleaner`

What usually fills the disk on Ubuntu

Location	Typical contents	Safe to trim?
`/var/cache/apt/archives`	Downloaded `.deb` files	Yes, with `apt clean`
`/var/lib/apt/lists`	Package index files	After `apt clean` only if you run `apt update` next
`~/.cache`	App thumbnails, pip, browser fragments	Often; apps rebuild caches
`/var/log` and journal	`journald` archives	Yes, with `journalctl --vacuum-*`
Old Snap revisions	Disabled rows in `snap list --all`	Yes, with `snap remove name --revision=N`
Trash	`~/.local/share/Trash`	Yes, when you do not need deleted files

For a deeper pass on orphan packages, see remove unused packages on Ubuntu. For everyday apt maintenance, the three commands clean, autoclean, and autoremove cover most systems without extra software.

See what is using space first

Before you install a disk cleaner for Ubuntu, measure. See also check disk space on Linux for df and du patterns on other distros.

bash


df -h /
du -sh ~/.cache /var/cache/apt/archives /var/log 2>/dev/null
journalctl --disk-usage

On my test host:

text


Filesystem                         Size  Used Avail Use% Mounted on
/dev/mapper/ubuntu--vg-ubuntu--lv   58G   42G   14G  76% /
1.1G	/home/golinuxcloud/.cache
400M	/var/cache/apt/archives
262M	/var/log
Archived and active journals take up 176.6M in the file system.

On a desktop, open Disk Usage Analyzer (baobab, package baobab):

bash

baobab

Version on Ubuntu 25.04: baobab 48.0. It helps you find large directories interactively; it does not delete files for you.

Clean Ubuntu with apt (no extra tools)

This is the baseline every admin should know before adding BleachBit or Ubuntu Cleaner.

apt clean — drop cached package files

Preview what clean would delete:

bash

sudo apt-get clean --dry-run

text


Del /var/cache/apt/archives/* /var/cache/apt/archives/partial/*
Del /var/lib/apt/lists/partial/*
Del /var/cache/apt/pkgcache.bin /var/cache/apt/srcpkgcache.bin

Run it:

bash

sudo apt clean

On my system /var/cache/apt/archives went from 400M to 40K. Installed packages stay on disk; only the download cache disappears.

apt autoclean — remove outdated cached debs

bash

sudo apt autoclean

Useful when older .deb versions pile up; often returns quickly if the cache is already empty.

apt autoremove — drop orphaned dependencies

Preview:

bash

sudo apt autoremove --dry-run

text

0 upgraded, 0 newly installed, 0 to remove and 38 not upgraded.

When packages would be removed, read the list before you confirm. After removing a large app such as LibreOffice, autoremove is where libuno and similar libraries actually leave.

Combined one-liner

bash

sudo apt clean && sudo apt autoclean && sudo apt autoremove -y

Trim systemd journal logs

Logs live under /var/log/journal and show up in journalctl --disk-usage. There is no --dry-run for vacuum—pick a limit explicitly:

bash


journalctl --disk-usage
sudo journalctl --vacuum-time=7d
# or cap size:
sudo journalctl --vacuum-size=200M

Do not vacuum to zero on a machine you are actively troubleshooting; keep enough history to debug service failures.

User cache and Snap revisions

Application caches under ~/.cache are safe to delete selectively when you accept that apps may rebuild them on next launch. Inspect size first:

bash

du -sh ~/.cache/*

Old Snap revisions show as disabled in:

bash

snap list --all | awk '/disabled/{print $1, $2}'

Remove a specific revision (example—use your name and revision from the list):

bash

sudo snap remove firefox --revision=8462

Repeat for each disabled revision you do not need. This is often worth hundreds of megabytes on desktop systems that auto-refresh snaps.

BleachBit — disk cleaner in Ubuntu universe

BleachBit is the closest widely packaged equivalent to Windows “disk cleanup” utilities on Ubuntu. It clears caches and junk files; it is not antivirus—see does Ubuntu need antivirus? if you need malware scanning. It is in universe on Ubuntu 25.04:

bash


sudo apt update
sudo apt install -y bleachbit
bleachbit --version

text

BleachBit version 4.6.2

List cleaners:

bash

bleachbit --list | grep '^apt'

text


apt.autoclean
apt.autoremove
apt.clean
apt.package_lists

Preview before you delete

Always preview. Example for user caches:

bash

bleachbit --preview system.cache 2>&1 | head -10

text


Delete 12.3kB /home/golinuxcloud/.cache/seaborn/tips.csv
Delete 4.1kB /home/golinuxcloud/.cache/uv/interpreter-v4/...
...

apt.package_lists can delete files under /var/lib/apt/lists/—that frees space but forces a full sudo apt update before the next install. Preview showed multi-megabyte index files on my host:

bash

bleachbit --preview apt.package_lists 2>&1 | head -5

Run a clean only after you are satisfied with the preview:

bash


bleachbit --clean apt.clean
# GUI:
bleachbit --gui

After I had already run apt clean, bleachbit --preview apt.clean reported 0B recoverable—expected, not a BleachBit failure.

Ubuntu Cleaner — janitor app from PPA

Ubuntu Cleaner is a GTK janitor inspired by the old Ubuntu Tweak cleaner. It is not in the default Ubuntu archive; install from ppa:gerardpuig/ppa:

bash


sudo apt install -y software-properties-common
sudo add-apt-repository -y ppa:gerardpuig/ppa
sudo apt update
sudo apt install -y ubuntu-cleaner

On Ubuntu 25.04:

text


ubuntu-cleaner:
  Candidate: 1.1.4-1
        500 https://ppa.launchpadcontent.net/gerardpuig/ppa/ubuntu plucky/main amd64 Packages

Launch from the app menu or run:

bash

ubuntu-cleaner

CLI options are limited:

text


Usage: ubuntu-cleaner [options]
  --version    show program's version number and exit
  -h, --help   show this help message and exit
  -d, --debug  Generate more debugging information.

Version on install:

text

ubuntu-cleaner 1.1.4

Inside the GUI you pick categories (package caches, application caches, browser data—depending on plugins). There is no batch --preview flag; use the on-screen selections the same way you would in BleachBit’s GUI.

Caveats on current Ubuntu releases

The PPA build dates to 2022. Install may print Python SyntaxWarning lines from oldkernel_plugin.py. On launch you may see missing icon warnings (computerjanitor, gtk-execute) with the Adwaita theme—the window can still open on a full desktop session. Ubuntu Cleaner needs a graphical session; it is not a server tool.

For SSH-only hosts, use BleachBit CLI or plain apt/journalctl instead.

Ubuntu cleaning before imaging or cloning

When you prepare a VM template or golden image:

sudo apt clean && sudo apt autoremove -y
sudo journalctl --vacuum-time=3d (or your retention policy)
Remove disabled snap revisions
Empty Trash and clear ~/.cache only if the template should not ship user data
Optional: BleachBit preview for browsers and thumbnails

You do not have to install Ubuntu Cleaner solely for imaging—CLI steps above shrink the image reliably. GUI cleaners are convenience, not a requirement.

Remove Ubuntu Cleaner or BleachBit

bash

sudo apt remove ubuntu-cleaner bleachbit
sudo apt autoremove -y

Drop the PPA if you added it only for Ubuntu Cleaner:

bash

sudo add-apt-repository --remove ppa:gerardpuig/ppa
sudo apt update

Troubleshooting

Symptom	Likely cause	Fix
`apt update` fails after BleachBit `apt.package_lists`	Package indexes deleted	Run `sudo apt update` to rebuild lists
`Unable to locate package ubuntu-cleaner`	PPA not added	`sudo add-apt-repository ppa:gerardpuig/ppa` then `apt update`
PPA has no plucky suite	Old Ubuntu or typo	Use correct codename; check `ls /etc/apt/sources.list.d/`
`ubuntu-cleaner` exits on SSH	GTK app needs display	Use `bleachbit` CLI or apt commands on servers
`journalctl: unrecognized option '--dry-run'`	Not supported	Use `--disk-usage` first; vacuum with explicit size/time
Freed little space after “clean all”	Data is in `$HOME` or Docker	`du -sh ~/*`; prune containers/images separately
zsh glob errors on apt patterns	Shell expansion	Quote patterns passed to apt

References

Summary

For Ubuntu cleaning, start with df, du, and journalctl --disk-usage, then run sudo apt clean, sudo apt autoremove -y, and targeted journal vacuum. Install BleachBit from universe when you want previews and scripted cleaners (bleachbit --preview, bleachbit --clean). Add Ubuntu Cleaner from ppa:gerardpuig/ppa only if you want a simple janitor GUI—version 1.1.4 on plucky, GUI-only, older but functional. Preview every GUI category before you wipe apt lists or browser data, and keep CLI maintenance as the foundation even when you install a disk cleaner app.

Frequently Asked Questions

1. What is the best disk cleaner for Ubuntu?

For most users, built-in apt maintenance plus BleachBit from universe is enough. Run sudo apt clean, sudo apt autoremove, and preview BleachBit cleaners before deleting. Ubuntu Cleaner from the gerardpuig PPA is an optional GTK app for the same janitor-style tasks if you prefer its layout.

2. How do I install Ubuntu Cleaner on Ubuntu?

Ubuntu Cleaner is not in the default repos. Add sudo add-apt-repository ppa:gerardpuig/ppa, run sudo apt update, then sudo apt install ubuntu-cleaner. On Ubuntu 25.04 the PPA publishes a plucky suite with version 1.1.4-1.

3. Is BleachBit better than Ubuntu Cleaner?

BleachBit ships in Ubuntu universe, has CLI preview and clean flags, and is actively packaged for current releases. Ubuntu Cleaner is GUI-only and last updated in the PPA around 2022. BleachBit is the better default for scripting and servers; Ubuntu Cleaner suits desktop users who want a simple janitor window.

4. Is it safe to run apt clean on Ubuntu?

Yes. apt clean removes downloaded .deb files from /var/cache/apt/archives. You can always re-download packages on the next apt install. It does not remove installed software. Run apt autoclean instead if you only want to drop obsolete package files.

5. How do I clear systemd journal logs safely?

Check size with journalctl --disk-usage. Trim with sudo journalctl --vacuum-time=7d or sudo journalctl --vacuum-size=200M. journalctl has no --dry-run flag—pick a time or size limit you are comfortable with before running vacuum.

6. Do I need a disk cleaner before imaging a Ubuntu VM?

Helpful but not mandatory. Clear apt caches, shrink journals, remove disabled snap revisions, and empty Trash so the image is smaller. Always preview GUI cleaners and avoid deleting browser passwords or SSH keys unless you intend to.

7. How do I uninstall Ubuntu Cleaner?

Run sudo apt remove ubuntu-cleaner && sudo apt autoremove. Remove the PPA with sudo add-apt-repository --remove ppa:gerardpuig/ppa if you no longer need updates from that source.

8. Why does Ubuntu Cleaner show missing icon warnings?

The package targets older GTK icon names such as computerjanitor. On modern Adwaita themes those icons may be absent. The app can still launch; warnings on the terminal are cosmetic unless the window fails to open entirely.