Windows private beta · v0.4.29

Your games, your disk, your decisions.

Kairo is a library and download manager for Windows. It keeps every source labeled, checks you have the space before it starts, carries on from where a paused download stopped, and keeps the library honest about what is actually installed.

  • 5,144 catalog entries
  • Runs locally
  • Free, no account
The Kairo home screen: a featured game with cover art, catalog statistics, and the navigation rail.

Why it exists

Download managers usually hide the part you need.

A progress bar that says nothing. A source that failed without saying which one. A pause button that quietly threw away an hour of downloading. Kairo was built by fixing those specific things, one at a time.

Pause actually pauses

Pausing keeps the bytes already downloaded and remembers which source they came from. Starting again carries on from there instead of beginning at zero.

Failures name the source

When a host stops mid-transfer the log says which host, why, and what Kairo tried next - so a provider's bad day does not read as the app breaking.

Space checked first

Kairo estimates the archive, the temporary copy and the extracted game, then asks which drive - before it commits, not halfway through.

One job for many files

Multipart archives stay a single package. Every part is verified present before extraction starts, so a missing part is caught early.

Sources already set up

Kairo ships with its own reviewed sources and a full catalog copy. Nothing to add, nothing to configure - it works the moment you open it.

The library checks disk

On startup Kairo reads back its own install records. A game you moved is found; a drive that is merely unplugged is never called missing.

Reinstall, your way

Choose a full reinstall that clears the folder first, or one that replaces the game's files and leaves your saves and mods alone.

The workflow

Every stage says what it is doing.

No stage is a black box. If something goes wrong you can see which step, which source, and which file.

  1. ChoosePick the game and a source, or let Kairo choose - it checks whether a link is alive before committing to it.
  2. PlanReview the space each drive needs for the archive, the temporary copy and the installed game.
  3. DownloadWatch speed, bytes, parts and the named provider. Pause and resume freely.
  4. Verify and extractArchives are checked before extraction; multipart packages must be complete first.
  5. InstallKairo finds the launch target, optionally creates a shortcut, and records where everything went.
  6. MaintainUpdate, repair, reinstall, move or remove - each with a plain description of what it will change.

What is in the box

More than a downloader.

Catalog

A catalog that admits what it does not know

Entries carry a version, a size, cover art and a description taken from the best source available - and where there is genuinely no description, the page says so instead of padding it out.

  • Kairo's own reviewed sources are already configured - nothing to add or set up
  • A full catalog copy ships in the app, so it works the moment you open it
  • Compare editions side by side when a game has more than one source
  • A source that was never read says "Page not read", not a fabricated blank
  • Official Steam details shown separately from anything a download source claims

How the catalog works →

A Kairo game page showing the description, sources and install options.
Library & mods

Installed games stay manageable

Kairo records where each game went, which executable launches it, and what it did during the install. Mods are handled through Vortex where possible, so your Nexus credentials stay in the tool that already holds them.

  • Steam-managed installs are detected by exact App ID and never guessed from a title
  • Mod profiles can be switched and reverted, restoring the original files
  • Removal reports what it actually deleted, judged by the folder rather than a count

Full feature tour →

The Kairo downloads queue with an active transfer, a paused one, and per-source detail.

Where Kairo draws the line

Things Kairo will never do.

These are not settings. They are fixed limits, enforced in the code and covered by tests, and they will not change.

It does not defeat protection

Kairo never bypasses captchas, paywalls, login walls, DRM or anti-bot checks. Where a host requires verification, it opens a visible window for you to complete it yourself.

It does not touch Steam credentials

Kairo never reads Steam passwords, cookies or ownership records. It matches games by exact App ID only, and a local manifest is never treated as proof you own something.

It does not host game files

Kairo operates no game archives of its own. It shows metadata and links that lead to independent services, and a provider label is an identification, not an endorsement.

It does not disable your antivirus

Kairo will never ask you to turn off security software, and it never does so itself. It does tell you when a release is known to conflict with Windows Security, so the choice is yours and informed.

You need a lawful licence for anything you install through Kairo. Read the full safety and boundaries page →

Privacy

Nothing leaves your PC unless you send it.

No accountThere is nothing to sign up for and no profile to create
Analytics offOne optional install event, unchecked by default
Local libraryQueues, paths, profiles and settings stay on your machine
You chooseReports and rights notices are sent only when you submit them

The specifics - what is stored, for how long, and how to withdraw it - are in the Privacy Notice.

Rights holders

A verified process, not a contact form.

If you own content that appears in the catalog, there is a dedicated route. A credible notice can lead to an entry being disabled while the facts are checked, and detailed proof of ownership or authority is required before Kairo confirms a final removal.

  • Rights-holder blocks take precedence over anything already cached or published
  • Private claimant details are stripped before any catalog is published
  • Corrections and counter-notices are part of the process; false claims are treated as abuse

Windows 10 and 11 · 64-bit

Try the beta.

Free, no account, and it updates itself. The installer is not code-signed yet, so Windows will show a SmartScreen warning - the download page explains exactly what you will see and why.