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Tool guide · Capsuleers.app

Fitting Tool

Pyfa-parity fitting editor for ships and structures

Full fitting editor for EVE Online ships and Upwell structures. The calculation engine mirrors Pyfa's formulas with verified parity: 23 fixtures, 631 assertions. Import an EFT fit from the in-game client, build from scratch, simulate system-effect modifiers (wormhole / incursion / Pochven / Drifter) and evaluate the impact of incoming projected modules on your hull.

Open the fitting tool

Preview

Schematic mockup — the real tool is interactive

How it works

  1. 1

    Pick hull

    Start from a ship or Upwell structure, or import EFT

  2. 2

    Build fit

    Add modules, rigs, charges, drones, fighters, implants

  3. 3

    Simulate

    Pyfa-parity engine computes EHP, DPS, cap, navigation

  4. 4

    Save & share

    Export EFT or publish the fit to the public library

View modes

3D VIEW

Radial slot layout around a glTF hull

  • Interactive glTF ship model, falls back to 2D render
  • Slots arc-arrayed around the hull with hover popovers
  • T3C subsystem swaps re-render the correct variant

TABLE VIEW

Pyfa-style flat column table

  • Columns: Slot / Module / CPU / PG / Cycle / Cap / Range
  • Dense per-module readout with final post-skill values
  • Forced on phone width for a compact layout

Key benefits

1

Pyfa-parity engine

Same numbers as Pyfa for EHP, DPS, capacitor stability, navigation and targeting — verified against 23 reference fits and 631 assertions with zero tolerance overrides. Covers dynamic Reactive Armor Hardener, Mutadaptive RAR spool, disintegrator spool, command bursts, Bastion, T3C subsystems.

2

3D view or table view

Switch on the fly between radial layout with the ship's glTF model and Pyfa-style table view with CPU / PG / Cycle / Range / Effect columns. The choice persists per user.

3

Mutaplasmid editor

Sliders with a rail anchored to the unmodified base value, visual hint of improvement vs regression, full revert. Works on abyssal modules (warp scrambler, web, propulsion, hardener) with the result fed into the final fit calculation.

4

Public and shareable fits

Save as private, get a shareable link to send outside, or publish into the site's fit library. Upwell structures (Astrahus, Fortizar, Keepstar, refinery, etc.) are supported with their service modules and structure rigs.

Frequently asked questions

Do the numbers really match Pyfa?

Yes. The fixture suite has 23 fits across multiple classes (frigate, cruiser, battleship, capital, T3C, marauder) with Pyfa reference screenshots — the tool must emit every number within zero tolerance. The suite runs as a gate before every release.

Can I fit Upwell structures?

Yes. Structures (Astrahus, Fortizar, Keepstar, Athanor, Tatara, Raitaru, Azbel, Sotiyo) are first-class hosts: dedicated market browser for Standup modules, service slots, structure rigs, fuel/h, online services. Navigation and drone sections auto-hide.

How does mutaplasmid work?

Open the editor on the abyssal module, adjust attributes with the sliders — green rail shows improvement, red shows regression vs base. Reset, Random and Revert are there if you want to step back. Once applied, the fit uses your chosen values for every calculation.

EVE Online Fitting Tool

EVE Online fitting tool with a Pyfa-parity engine: import EFT, compute true DPS, EHP, capacitor stability, and fit ships and Upwell structures in 3D.

The Fitting Tool on Capsuleers.app is a full editor for EVE Online ships and Upwell structures, running an engine that mirrors Pyfa's formulas: 23 test fixtures, 631 assertions, zero tolerance overrides at parity. It's a fit simulator and a DPS calculator that runs entirely online: you can import an EFT fit pasted from the in-game client or build from scratch by picking a hull from the market browser. The tool resolves slots, hardpoints, calibration, CPU and PG, handles Active/Passive/Overheat module states, recognises T3 Cruiser subsystems, and applies system-effect modifiers (wormhole class, incursion, Pochven, Drifter) across the whole fit.

Outputs include layered EHP (shield, armor, hull) with dynamic resistances from Reactive Armor Hardener, weapon, drone and fighter DPS against a configurable damage profile, capacitor stability with a drain-vs-recharge chart, navigation (velocity, align time, warp speed), targeting (lock range, scan resolution, signature), and a projected section that simulates incoming scram, web, neut, sensor damp or tracking disrupt. Two views: 3D radial with the ship's glTF model, or a Pyfa-style table with CPU/PG/Cycle/Range/Effect columns.

The mutaplasmid editor mirrors Pyfa's sliders with rails anchored to the unmodified base, applicable to abyssal modules and fully reversible. Fits can be saved private, opened via sharable link, or published to the site's public library. Upwell structures (Astrahus, Fortizar, Keepstar, Athanor, Tatara) are first-class hosts with their service modules and structure rigs.