osu! PP & QoL by Sandro

Calculate pp for any osu! beatmap you have open. Real algorithm, all four modes.

Features:

• All four game modes — osu!standard, osu!taiko, osu!catch and osu!mania, converts included.
• Six pp eras, switchable — recalculate the same play with the algorithm osu! ran in 2026-07, 2025-10, 2025-03, 2024-10, 2022-09 or 2021-01, with a live delta showing what each rework cost or gained you.
• Lazer and Classic scoring — slider heads, ticks, ends and osu!mania hold tails judged either way.
• Judgements that match the mode — individual hit counts where they matter (300/100/50 in osu!standard, 320/300/200/100/50 in osu!mania), target accuracy where they do not (osu!taiko, osu!catch).
• Comparison table — star rating and pp at 100 %, 99 % and 98 %, NoMod against your current mod selection.
• Accuracy presets — 100 %, 99 %, 98 % and 95 % in one click.
• Raw pp — enter your osu! username and see what the play would actually add to your profile, net, after the 0.95ⁿ weighting of your top 100.
• Bookmarks — save maps under categories you name yourself, with star rating and NoMod SS pp, stored locally.
• Quick links — in-browser preview and Beatconnect mirror for whatever map is open, plus one-click copy of the beatmap ID.

QoL features:

The extension also adds a few things to the site, built to look like they were always part of it. Every one of them can be switched off individually, behind the gear in the popup.

• Beatconnect and Preview buttons in the beatmapset header, right beside osu!direct. Preview can also unfold the map in place, so you never leave the page.
• pp for an SS, 99 % and 95 % in the beatmap's stats column, beside the star rating and AR — no clicking required.
• Copy the artist or the title without clicking the links and being navigated away.
• Bookmark a difficulty straight from the difficulty picker, into the same list the popup shows.
• Download and osu!direct on the beatmap rows of a profile — most played, most watched replays, pinned scores and best performance — which otherwise offer no way to get the map.
• Medals link to osekai, which documents every medal, including the secret ones osu! gives no hint for.

Disclaimer:
This is vibe coded. I built it because there was no up-to-date pp calculator for Firefox or Chromium browsers, and figured it was worth sharing.

Bugs and ideas are welcome anyway — my osu! profile and Discord name are in the popup, behind the "?" button.