Overview

ComfyUI — Node-based UI for Stable Diffusion

ComfyUI is the most powerful and flexible interface for running Stable Diffusion models locally. Its node-based visual workflow system allows users to build complex image generation pipelines, chain models, and create advanced workflows not possible in simpler UIs.

Node-based workflow system

Support for all SD models and LoRAs

Custom workflow creation

Queue management

Features & capabilities

Everything it does, in plain English.

FeatureNode-based workflow systemIncluded

FeatureSupport for all SD models and LoRAsIncluded

FeatureCustom workflow creationIncluded

FeatureQueue managementIncluded

FeatureExtensive plugin ecosystemIncluded

FeatureVideo and image generationIncluded

API AccessProgrammatic access available for developers.Available

PlatformsWindows · macOS · Linux

The honest take

Where it shines, where it stumbles.

✓ Pros

✓Maximum flexibility and control
✓Free and open source
✓Huge community and plugins
✓Efficient GPU usage

! Watch-outs

!Steep learning curve
!Requires powerful GPU
!No cloud version
!Interface can be complex to navigate

Who it's for

Where ComfyUI pays for itself fast.

— Use case

Advanced local AI image generation

— Use case

Research and experimentation

— Use case

Custom pipeline creation

— Use case

Professional AI art workflow

— Use case

Batch processing

Community reviews

Share your take on ComfyUI

3.6

★★★★★

4 reviews

5★

4★

3★

2★

1★

Rachel M. ✓ Verified

ML Engineer · Series A startup

★★★★★

2 months ago

Worth every cent

Absolutely love this tool. The customization options let me tailor it to my exact workflow. I've recommended this to at least 10 colleagues already. Integration with my existing tools was seamless — no friction at all.

Tyler K. ✓ Verified

Tech Lead · Palantir

★★★★★

4 months ago

Really good — a few things to improve

Mostly great, minor complaints. Works consistently across all my devices and browsers. The onboarding flow was smooth and I was productive from day one. The ROI was clear within the first week of using it. I'd love to see better export options. Looking forward to seeing how it improves.

Victoria H. ✓ Verified

Co-founder · HubSpot

★★★★★

9 months ago

Really good — a few things to improve

Very good, with a few rough edges. I've recommended this to at least 10 colleagues already. Pricing is fair for the value you get. I'd love to see better export options. Looking forward to seeing how it improves.

David S. ✓ Verified

Researcher · Y Combinator startup

★★★★★

10 months ago

Blew away all expectations

Best-in-class, period. The AI suggestions are incredibly accurate and save me hours every week. The free tier is genuinely generous compared to competitors. Keep up the great work, team.

Carlos A. ✓ Verified

Product Manager · Palantir

★★★★★

11 months ago

Impressed with the results

Genuinely useful — glad I tried it. It handles edge cases better than anything else I've tried. The recent updates have addressed most of my initial concerns. The AI doesn't just suggest — it learns from my preferences over time. Definitely worth trying.

Yuki P. ✓ Verified

AI Researcher · Microsoft

★★★★★

1 years ago

Good value, works well

Does what it promises and does it well. The interface is intuitive enough that I didn't need to read any docs. The AI suggestions are incredibly accurate and save me hours every week. The mobile experience could use some work. Five stars — no hesitation.

Heather L. ✓ Verified

VP of Engineering · GitLab

★★★★★

1 years ago

The best AI tool I've used

Absolutely love this tool. Performance is fast — no noticeable latency even on large inputs. Pricing is fair for the value you get. Keep up the great work, team.

Wei P. ✓ Verified

Backend Engineer · an e-commerce company

★★★★★

1 years ago

The best AI tool I've used

Exceeded all my expectations. The AI suggestions are incredibly accurate and save me hours every week. Keep up the great work, team.

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