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SPECIFICTION
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Last Epoch Planner

lastepochplanner.com

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Spec score 7.2 #12 of 22 in Game Build Planners

What it is

Last Epoch Planner is a free, open-source build planner for the game Last Epoch, available in a browser and as a desktop application. Players can map the passive tree, choose up to five skills, and allocate points in their skill trees. Items can be imported, crafted, or modified, with support for Rare, Exalted, Unique, Legendary, Set, and Idol items. The planner tracks stats and calculates DPS for several skills, chances to inflict ailments, and debuff effects. Builds can be shared through lastepochplanner.com URLs, and the changelog documents online imports through the Last Epoch Tools API. The desktop app can import offline characters and builds from Last Epoch Tools; offline character import is not available in the browser version. The project is MIT-licensed. Its README cautions that many stats and affixes do not work correctly, and that recognizing a modifier does not guarantee the calculation will behave as expected. The desktop version runs on Linux through Wine; native Linux support may come later.

Spec sheet

Purpose
Last Epoch Planner is an offline build planner for the game Last Epoch.Read 9 Oct 2026 · github.com
Integrations
The changelog documents online import using the Last Epoch Tools API.Read 8 Oct 2026 · github.com
License
The project is licensed under MIT.Read 9 Oct 2026 · github.com
Browser limitation
The website says offline import is not currently possible in the web version.Read 8 Oct 2026 · lastepochplanner.com
Browser support
The website says it works in modern browsers including Chrome, Firefox, and Safari across multiple platforms.Read 8 Oct 2026 · lastepochplanner.com
Browser version
The web version runs the planner in a browser without installation.Read 9 Oct 2026 · github.com
Build planning
Players can plan passive trees, skill trees, and item crafting, and view DPS calculations and stat tracking.Read 8 Oct 2026 · lastepochplanner.com
Calculation limits
The changelog says that even recognized modifiers are not guaranteed to work as expected.Read 8 Oct 2026 · github.com
Calculations
It supports several stat calculations, DPS calculations for several skills, chance to inflict ailments, and debuff effects.Read 9 Oct 2026 · github.com
Character import
The desktop planner supports importing offline characters and builds from the Last Epoch Tools planner.Read 9 Oct 2026 · github.com
Compatibility
The desktop planner runs on Linux through Wine; native Linux support may come in the future.Read 9 Oct 2026 · github.com
Crafting
The changelog documents support for importing corrupted affixes and improved crafting support.Read 8 Oct 2026 · github.com
Items
Items can be imported, crafted, and modified; supported types include Rare, Exalted, Unique, Legendary, Set, and Idol items.Read 9 Oct 2026 · github.com
Notable limits
The project README says many stats and affixes do not work correctly and that recognizing a mod does not guarantee it works as expected.Read 9 Oct 2026 · github.com
Open source
The project is published as an open-source project on GitHub.Read 8 Oct 2026 · github.com
Passive tree
The planner supports the passive tree.Read 9 Oct 2026 · github.com
Sharing
The changelog says the planner supports importing and exporting lastepochplanner.com URLs.Read 8 Oct 2026 · github.com
Skills
Users can select up to five skills and spend points in their associated skill trees.Read 9 Oct 2026 · github.com
Support channel
The maker’s release announcement invites users to join the project’s Discord server for support and discussion.Read 8 Oct 2026 · reddit.com
Third-party status
The project describes itself as a third-party program and says Eleventh Hour Games is not responsible for in-game issues or bugs caused by it.Read 9 Oct 2026 · github.com
Web limitation
Offline character import is not available in the web version.Read 9 Oct 2026 · lastepochplanner.com

Strong points and limits

Strong points

  • Free and open source under the MIT license
  • Plans passive trees and up to five skills
  • Supports multiple item types and crafting
  • Shares builds through planner URLs
  • Provides several stat and DPS calculations

Limits

  • Web version cannot import offline characters
  • Many stats and affixes may not work correctly
  • Linux desktop use requires Wine

Who it suits

It suits Last Epoch players who want to plan skills, equipment, and crafting or share a build. Desktop users can import offline characters; browser users cannot.

Verdict

Last Epoch Planner offers detailed character planning across browser and desktop versions, with build sharing and several calculations. Treat its stat and affix results cautiously, and note that offline character import is desktop-only.

Where Specifiction places it

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