osu! PP Calculator 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.
• Mods — NF, EZ, HD, HR, DT, HT, FL and SO, with AR, OD, CS, HP, BPM and length updating as you toggle them.
• 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.

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.