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FluxGymAI Toolkit
Free

Free to download and run, with source on GitHub.

 Free

Free and open source.

Windows, Linux Self-hosted, Command line
  • Simple interface for LoRA training
  • Works on GPUs with low VRAM
  • Trains LoRAs and fine-tunes diffusion models
  • Web UI as well as config-file workflows
  • Focused on FLUX LoRAs only
  • Fewer options than full training tools
  • Training needs a powerful GPU with plenty of memory
  • Aimed at users comfortable with model training concepts
Downloadable app Downloadable app, Self-hosted
Closed source Open source
License not stated License: MIT
No account needed No account needed
Works offline Works offline

Checked September 26, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.