Mossworks builds Chrome extensions that solve one problem each — focused, minimal, and built to disappear into your workflow.

See the products Chrome Web Store
Grove
Focus timer & site blocker
FilmDen Soon
Personal film catalogue
Cove
Download router
0.1
Grove.
Stay in the session

A Pomodoro timer with a built-in site blocker. Run timed focus sessions, block distracting sites, and track your work with a task list. A tree grows as you stay focused — seedling to sapling to forest.

Add to Chrome Explore Grove
Grove
🌱
0 / 4 sessions today
25:00
mins
🎯
12
Sessions today
+3 from yesterday
⏱
5h
Focus time
Deep work mode
🔥
14
Day streak
Keep it going
🌳
89h
All-time focus
214 sessions
Your focus pattern
0.2
FilmDen. Coming soon
Remember what to watch

A new way to keep track of the films you love. Details coming at launch.

In development — launching soon
FilmDen
FD
Coming soon
Something for film lovers is taking shape.
0.3
Cove.
Downloads, sorted

Route your downloads into the right folders automatically. Set rules by website, file type, or name — PDFs to Invoices, ZIPs to Dev, screenshots to Screenshots. Never hand-sort your downloads folder again.

Add to Chrome
Cove
Rules
Activity
Settings
Rules
Route your downloads from specific websites to the right folders.
Website Folder Condition Status
C
claude.ai
claude.ai
 📁 Downloads/Claude All files
G
github.com
github.com
 📁 Dev/Repos .zip, .tar.gz
D
drive.google.com
drive.google.com
 📁 Work/Docs .pdf, .docx
About
The best tools are the ones you forget you're using.

Every extension is designed, built, and maintained by one person. No VC funding, no growth metrics, no dark patterns — just tools that deserved to exist.