KoalaStuff

Featured

KoalaSync

Browser watch parties for any video. Sync playback across YouTube, Netflix, Emby, Jellyfin, Plex and more.

KoalaSync is a browser extension and self-hostable relay server for synchronized video playback on almost any website with a video element. Works with YouTube, Twitch, Netflix, Amazon Prime, Disney+, Emby, Jellyfin, Plex and more. Includes smart audio compression, episode auto-sync, and invitation links. No account required — just install, create a room, and share the link.

Active

Open SourceBrowser ExtensionSelf-hostableFreeWatch Party

Visit website View on GitHub

Chrome Web Store Firefox Add-ons

KoalaPull

A native desktop download manager for yt-dlp. Download videos, audio and playlists from hundreds of sites — without using a terminal.

KoalaClicker

A privacy-first auto-clicker for idle games and repetitive web tasks. Zero tracking, zero permissions beyond the active tab.

KoalaCookies

A lightweight cookie manager extension to view, edit, block, and export HTTP cookies with ease.

KoalaFlyff

Utility extension for Flyff Universe players to track stats, buff timers, and party layouts.

KoalaSound

Real-time audio processing for browser video tabs. Compressor and EQ presets. Chromium-only proof of concept.

KoalaStartpage

A personal bento-box dashboard linking KoalaStuff projects, server status and daily tools. Moving to startpage.koalastuff.net.

KoalaSnippets

A polished self-hosted code snippet manager to capture, organize, and share code snippets easily.

KoalaWeb

Shared online timer application for synchronized countdowns and session tracking.

KoalaNews

Early news-related experiment. More details will be added once the project is ready to be shown publicly.

KoalaStuff is where I collect small tools, browser extensions and experiments that solve problems I run into myself. Some are polished, some are still early, but the goal is always the same: useful tools without unnecessary accounts, tracking or SaaS fluff.

Built by a solo developer, one feature at a time. All projects are open-source. If something is broken or missing a feature, GitHub issues are the right place.

Some projects are polished, some are experimental, but all are built around real use cases.

Open source

All projects are open source. You can read the code, report issues and suggest improvements on GitHub.

No tracking on this site

This website has no analytics, no tracking pixels, no cookies and no third-party scripts. What you see is what you get.

Built around real use cases

These tools were built because I needed them myself. No fake demos, no stock-photo testimonials, no inflated user counts.

Honest about limitations

Every project page clearly states what works, what does not, and what is still experimental. No promises we can't keep.

Development notes

I write occasional dev notes about KoalaStuff projects, browser extension edge cases, Web Audio, self-hosting and implementation details on dev.to.

Read dev notes

What is KoalaStuff?

KoalaStuff is a collection of small open-source tools, browser extensions, desktop apps and experiments built by a solo developer. The focus is on media, self-hosting, browser utilities and everyday automation.

Who builds KoalaStuff?

All KoalaStuff projects are built by Timo, a solo developer from Germany. You can find the GitHub profile at github.com/Shik3i.

Are the projects open source?

All projects are open source under the MIT license. You can find the source code on GitHub.

Are the projects free?

Yes. All KoalaStuff projects are free to use. Some projects are self-hostable if you prefer to run your own infrastructure.

Where can I report bugs?

Open an issue on the relevant GitHub repository. Links to each project's repository are on this page.

Do you use tracking or cookies?

No. This landing page has no analytics, no tracking, no cookies and no third-party scripts. Your theme preference may be stored in localStorage — it never leaves your device.

Can I self-host KoalaStuff projects?

Some projects like KoalaSync are designed to be self-hostable. Check the README of each project for self-hosting instructions.

Why are some projects marked experimental?

Experimental projects are working but may have rough edges, incomplete features, or may change significantly. They are shared publicly because they are useful, not because they are finished.

Projects