# osu! preview

> Preview osu! beatmaps inside the browser

Canonical page: [https://chrome-stats.com/d/osupreview](https://chrome-stats.com/d/osupreview)

## Overview

- **ID:** `osupreview`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** TechnoZamb
- **Category:** games-entertainment
- **Daily users:** 3
- **Weekly downloads:** 2
- **Version:** 1.2.1
- **Last updated:** 2026-07-27
- **First published:** 2026-07-16
- **Size:** 45 MB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/osupreview/)

## Description

Preview osu! beatmaps inside the browser

osu! preview is a browser extension that allows you to preview osu!standard beatmaps in your browser. It correctly plays most maps, renders 99% similarly to the osu! client, gives you a seekbar to jump to any part of the map, allows you to adjust all volumes and background dim, it has support for mods (EZ, HR, HT, DT, HD, FL), skins, and autoplay.

Repository link: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/9a2d26013556f53d5ea85d97780fc11b451c922d319e17fc3963b9850328641d/https%3A//github.com/TechnoZamb/osu-preview" rel="nofollow">https://github.com/TechnoZamb/osu-preview</a>

Controls:
Spacebar - Play/pause
Mouse wheel - Volume (hover over each channel to change its volume individually)
Left/Right arrows - Rewind/skip 3 seconds
Number/Numpad 0-9 - Jump to 0-90% of the beatmap
Tab - Open/close 'More' panel

Buttons used to activate/deactivate mods in osu! also work in osu! preview:
Q - EZ, E - HT, A - HR, D - DT, F - HD, G - FL

## Rankings

- #54,193 — Overall
- #162 — deactivate

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `declarativeNetRequest`
- `unlimitedStorage`
- `downloads`

### Host permissions

- `https://*.ppy.sh/*`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [osu! Beatmap Preview](https://chrome-stats.com/d/osu-beatmap-preview) — 6 users, 5.00 / 5
- [osu! preview](https://chrome-stats.com/d/osu-preview) — 738 users, 4.83 / 5
- [mosu! preview](https://chrome-stats.com/d/mosu-preview) — 28 users, 5.00 / 5
- [osu! Full Preview](https://chrome-stats.com/d/osu-full-preview) — 13 users, 3.00 / 5
- [osu-pp-torii-edition](https://chrome-stats.com/d/osu-pp-torii-edition) — 1 users
- [VIP Osu! Styler](https://chrome-stats.com/d/vip-osu-styler) — 42 users, 5.00 / 5
- [osu! koko](https://chrome-stats.com/d/osu-koko) — 100 users, 3.67 / 5
- [ezpp!](https://chrome-stats.com/d/ezpp) — 828 users, 4.59 / 5
- [osu!blood](https://chrome-stats.com/d/osu-blood) — 26 users
- [Dan Overlay for osu!web](https://chrome-stats.com/d/dan-overlay-for-osu-web) — 5 users
- [osu! More Beatmaps Info](https://chrome-stats.com/d/osu-more-beatmaps-info) — 10 users
- [osu! PP & QoL](https://chrome-stats.com/d/osu-pp-calculator-sandro) — 13 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/osupreview)