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Best free AI image generators

Only image generators with a free plan or an open-source option are included. Midjourney is left out because it's paid only.

Scores come from public evidence (pricing, free tier, docs, platforms, open source, update activity), not hands-on testing yet. How scoring works.

1. Stable Diffusion (ComfyUI)

Node-based local UI for Stable Diffusion/Flux models.

  • Pricing: Free, open source (runs on your GPU)
  • Free plan: Yes
  • Open source: Yes
  • Platforms (from official site): Windows, macOS, Linux, API
  • Evidence score: 100/100

2. Adobe Firefly

Adobe's commercially-safe image, video and audio generator.

  • Pricing: Free limited daily generations; Standard $9.99/mo
  • Free plan: Yes
  • Open source: No
  • Platforms (from official site): Web
  • Evidence score: insufficient public evidence

3. Ideogram

Image generator strong at text in images.

  • Pricing: Free weekly credits; Plus $20/mo ($15 annual)
  • Free plan: Yes
  • Open source: No
  • Platforms (from official site): not verified
  • Evidence score: insufficient public evidence

4. Leonardo.Ai

Image generation popular for game art.

  • Pricing: Free 150 tokens/day; Essential $12/mo
  • Free plan: Yes
  • Open source: No
  • Platforms (from official site): not verified
  • Evidence score: insufficient public evidence

Head-to-head comparisons

See the full ranking: Best Image generation tools.