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@medick51o medick51o released this 15 Apr 23:46
· 1 commit to main since this release
v1.0.1
9560f89

LE Build Converter v1.0.1

Convert lastepochtools.com builds for import into maxroll.gg's Last Epoch planner. Paste a LET URL, the app fetches the build, then walks you through step-by-step instructions to paste each category (gear, idols, blessings, passives, weaver tree, skills) into maxroll's Export/Import dialog.

⭐ What's new in v1.0.1

Transparency-only release. No functional changes from v1.0.0 — the tool still works identically.

Added clear disclaimers in four places so anyone can see at a glance what this tool is (and isn't):

  • App footer — always visible on every screen of the wizard
  • App Done screen — full disclaimer below the Credits block
  • README.md — dedicated Disclaimer section
  • README.txt — same, in the shipped zip

Download

LEBuildConverter_v1.0.1.zip — single-file self-contained 62 MB .exe. No .NET install required. Windows 10/11 64-bit.

How to run

  1. Extract the zip anywhere
  2. Double-click LEBuildConverter.WPF.exe
  3. On first launch, Windows SmartScreen may warn that the .exe isn't code-signed. Click More info → Run anyway

Quick start

  1. Create a free maxroll.gg account and log in (required to save the imported build — without it, any paste is throwaway)
  2. Paste a lastepochtools planner URL (e.g. https://www.lastepochtools.com/planner/BakypDvx)
  3. Click Fetch Build — see the full build summary with real item / skill / affix names
  4. Click Start Import Wizard and follow the 8-12 steps (depends on build specializations)
  5. On the final step, save the build in maxroll by clicking the settings cog
  6. Use the saved maxroll URL with Ash's LE_hud mod gear spawner, or generate a maxroll loot filter

Why this exists

Maxroll has the best loot filter system for Last Epoch, but most build guides live on lastepochtools.com. Manually recreating a build from LET inside maxroll just to use the loot filters was painful. This tool does the conversion in ~30 seconds of clicking Copy → Paste → Import across a few tabs.

What it handles

  • Equipment — all 12 slots including the Woven Echo altar
  • Idols — all 20 grid positions
  • Blessings — all 10 slots
  • Passive tree — every node, matched against the game's internal ID system
  • Weaver Tree — when present
  • Up to 5 specialized skill trees — each with its own wizard step
  • Real human-readable names for every item, affix, skill, and passive (no opaque IDs in the UI)

Known limitations

  • Maxroll's class/mastery must be set manually before importing passives — the app shows a prominent warning banner telling you which mastery to pick
  • Cloudflare sometimes rate-limits lastepochtools — wait 30 seconds and retry if a fetch fails
  • Idol grid positioning uses a placeholder formula that may not match maxroll's actual addressing for edge-case idol shapes
  • The .exe isn't code-signed, so SmartScreen will warn on first launch

Disclaimer

This is a free, non-commercial community tool made by a Last Epoch player who just wanted an easier way to move builds between planners so he could use maxroll's loot filters.

LE Build Converter is not affiliated with, endorsed by, or sponsored by Eleventh Hour Games, lastepochtools.com, or maxroll.gg. All item, skill, affix, and passive data is the property of Eleventh Hour Games. Planner format credit goes to lastepochtools.com and maxroll.gg respectively.

No ads. No analytics. No user data collected. No monetization of any kind. The tool is open source (MIT license) so anyone can verify exactly what it does.

If lastepochtools, maxroll, or EHG would like this tool taken down or modified, please open an issue on this repo and I will comply promptly. This tool exists because I love the Last Epoch community and want to make it easier for players to share and test builds — not to harm or compete with anyone.

Credits

Thanks to Frozen Sentinel — their Runemaster build was published simultaneously to both lastepochtools.com and maxroll.gg, and we used that paired build as our Rosetta Stone to compare the two planner formats side-by-side. Diffing the raw JSON exports confirmed that lastepochtools' lz-string-encoded item/affix IDs decode to the exact same game-internal integers maxroll uses — and having that paired reference made the whole conversion process far easier to figure out.

Thanks to BinaQc and the maxroll team — the loot filter system they built for this season is the reason this tool exists at all. I kept wanting to pull builds from lastepochtools into maxroll just to use their loot filters, and after doing it manually one too many times, I finally built this thing. The maxroll loot filters are the best in the game.

AaronActionRPG is cool — he did nothing to help with this tool, but he's a staple of the Last Epoch content creator community and I figured I'd shout him out anyway.

Tech stack

C# WPF on .NET 10, LZStringCSharp for lz-string decoding, CommunityToolkit.Mvvm for MVVM source generators, curl.exe subprocess for the Cloudflare-protected lastepochtools API (bypasses TLS fingerprinting), embedded JSON databases (~564 KB) covering 1498 items / 468 uniques / 1112 affixes / 1134 skills / 5 full passive trees.

Bug reports

Open an issue at https://github.com/medick51o/LEBuildConverter/issues with:

  • The lastepochtools URL that failed
  • Which wizard step broke
  • Any error message
  • Screenshot if possible

Version history

  • v1.0.1 — Transparency disclaimers added to app + README (this release)
  • v1.0.0 — Initial public release with full wizard, real screenshots, auto-detect paste flow, all credits, and a final "Save your build" step
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