Sifty is an AI-assisted Windows maintenance tool. It cleans junk, analyzes disks, finds duplicates, manages installed apps and startup programs, applies updates via winget, prunes developer artifacts, and organizes files — from a scriptable CLI or a full-screen terminal UI. Deletions are dry-run by default and go to the Recycle Bin; the optional AI assistant runs locally via Ollama.
Sifty is an open-source maintenance tool for Windows that is built to be hard
to misuse: it previews every change, deletes only to the Recycle Bin, and can
undo any clean. It clears junk and caches, analyzes disk usage, finds
duplicate files, and manages apps, startup items and updates. It also cleans the
clutter other cleaners ignore: stray node_modules and build output, orphaned
git worktrees, and bloated WSL2 disks. Drive it from a scriptable CLI or a
full-screen terminal UI.
The optional AI assistant runs locally via Ollama: nothing leaves your
machine, and it only ever sees file metadata (names, sizes, paths), never file
contents.
Safety first
Sifty deletes files and changes system state, so it is built to be hard to misuse:
Dry-run by default. Every destructive command previews what it would do;
real changes need an explicit --apply.
Recycle Bin, never permanent delete. All removals go through one
trash() function backed by Send2Trash, and sifty undo restores the last
clean.
Protected paths.C:\Windows, Program Files, ProgramData, the drive
root and your profile root are refused even with --apply --yes.
Audit log. Every applied deletion is recorded in %APPDATA%\sifty\audit.log.
The AI never deletes anything. It is advisory; high-risk tool calls
always require your approval.
Sifty is built developer-first: everything is scriptable, the engine is a
reusable Python library, and it cleans the things developer machines actually
accumulate (build artifacts, orphaned worktrees, bloated WSL2 disks).
BleachBit is the closest
open-source cousin; it is cross-platform and can securely shred files, while
Sifty stays Windows-only, sends everything to the Recycle Bin with full undo,
and adds duplicates, app management and developer cleanups.
Install
pipx install sifty # recommended (isolated); or: pip install sifty
scoop bucket add sifty https://github.com/Vortrix5/scoop-bucket; scoop install sifty
winget install Vortrix5.Sifty # once the winget-pkgs PR is merged
sifty doctor # check admin rights, winget, Ollama
Prefer no Python install? Download the standalone sifty.exe from the
latest release.
sifty checkup # one read-only scan of everything: junk, updates,
# orphans, stale files, disk space, startup
sifty tui # the full-screen interactive app
# Junk
sifty junk scan # show reclaimable space per category
sifty junk clean # preview removal (dry-run)
sifty junk clean --apply # send junk to the Recycle Bin (asks first)
# Disk
sifty disk volumes # used/free/total per volume
sifty disk analyze C:\Users # biggest folders/files under a path
sifty disk duplicates D:\ # find duplicate files and wasted space
# Apps & updates
sifty apps list --by-size # installed apps, largest first
sifty apps orphans # broken uninstall entries in the registry
sifty apps uninstall "App" # uninstall via winget (preview, then --apply)
sifty apps leftovers "App" # what the uninstaller left behind (then --apply)
sifty update check # available updates (winget)
sifty update apply # upgrade everything (asks first)
# Developer cleanup
sifty purge clean # node_modules, dist, __pycache__, target, …
sifty cleanup duplicates D:\Photos # de-duplicate (keeps one copy each)
sifty cleanup large C:\Users\you # biggest files under a path
sifty cleanup stale --days 180 # old items in Downloads
# Startup & services
sifty startup list # startup programs (enabled/disabled)
sifty startup disable "Spotify" # reversible (sifty startup enable …)
sifty services list # curated optional services + state
sifty --admin services disable DiagTrack # toggle one (needs admin)
# History & undo
sifty history # what was cleaned + total space reclaimed
sifty undo # restore the most recent clean from the Recycle Bin
# Organize files
sifty organize preview C:\Users\you\Downloads --by type
sifty organize apply C:\Users\you\Downloads --by date
sifty organize undo # put the last organize's files back
# Configuration
sifty config # all settings + which ones you've overridden
sifty config set ai.model "llama3.2:3b"
sifty config edit # open config.toml in your editor
# AI (requires Ollama running)
sifty ai status
sifty ai ask "what can I safely delete on my C drive?" --path C:\
# Scripting: JSON output on read-only commands (auto-enabled when piped)
sifty --json checkup
sifty --json disk volumes
sifty --json apps list --by-size
Some operations (Windows temp, update cache, certain uninstalls) need an
Administrator terminal. sifty doctor tells you if you're elevated, and
sifty --admin relaunches elevated via UAC.
The TUI
sifty tui opens a full-screen app with a seven-section sidebar (Home,
Clean, Disk, Apps, Monitor, Reports, AI):
Home: volume gauges and a Run checkup button that scans everything
at once; findings come with buttons that fix them right there (clean junk,
clean stale downloads, apply updates, each behind a confirm).
Clean: Junk / Purge / Optimize / Smart cleanup under one roof (tabs).
Apps: Installed / Updates / Startup / Services, with fuzzy filter,
sorting, bulk uninstall, and an automatic leftover scan after uninstalling.
AI: an agentic chat where proposed tool runs show Run/Skip buttons
inline in the conversation, and scan results carry follow-up action
buttons.
Press Ctrl+P for the command palette (jump to any screen), F2 to
elevate, Space to mark rows for bulk actions. The Reports screen shows
space reclaimed over time with an Undo last clean button.
Pull the configured model: ollama pull qwen2.5:3b.
sifty ai status should report "running".
Configure everything with the sifty config command, no need to hand-edit
files:
sifty config # show all settings + your overrides
sifty config set ai.model "llama3.2:3b" # use a different local model
sifty config set ai.host "http://localhost:11434"
sifty config set safety.extra_protected_paths '["D:\\Important"]'
sifty config set junk.include_downloads_installers true
sifty config edit # or open config.toml in your editor
Settings live in %APPDATA%\sifty\config.toml; sifty config set only writes
the keys you change, so defaults keep flowing through on upgrades.
Architecture
Layered: thin frontends over a reusable engine, OS specifics quarantined:
Frontends depend on core; core depends on windows/infra; nothing
imports upward. A GUI could call the same engine functions (junk.scan,
disk.find_duplicates, checkup.run_checkup) without a rewrite. See
docs/ARCHITECTURE.md for the design rationale.
Tests
.\.venv\Scripts\python.exe -m pytest -q # 160+ tests, ~20 s
The safety guardrails are the most heavily tested code in the repo; the Windows
environment is mocked so the suite also runs on CI. See
CONTRIBUTING.md to get involved.