OS Features - Extension Edition

by Lastie · lastie-os.github.io · Functionality & UI

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Adds new features to Online Sequencer! Some may potentially be added to the main site too :3

Users

+1 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#124K

#103K among extensions

Version

2026.5.20.01

updated 21 May 2026

Users

monthly, 8 months

Latest, 15 Oct 2026: 34 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months

Latest, 15 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About OS Features - Extension Edition

Adds new features and themes to Online Sequencer! Sequencer features include: - AdBlock - MultiSolo (has been added to main site, but will keep for OS Rooms) - Slider Text Inputs - And a BPM tapper. Chat features: - Midnight Rose theme - Image auto hider - Chat user blocker - Chat name stylizer (fixed!) - And link embeds Themes: - Midnight rose chat theme Account Management: - Adds a drop-down for easy account-swapping Also adds a small fix to the forums page allowing the chat popup to work.