head to head · open source
ComfyUI vs Pearl
ComfyUI has 145,017 GitHub stars, 17,260 forks, 4,894 open issues and last shipped yesterday. Pearl has 1,098 stars, 181 forks, 40 open issues and last shipped 6 months ago. ComfyUI leads on adoption by 13,107% (145,017 vs 1,098 stars). ComfyUI is written in Python under GPL-3.0; Pearl is written in TypeScript under Apache-2.0. ComfyUI has attracted 12% as many forks as stars, Pearl 16%. ComfyUI was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (ai), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 20902 open source comparisons
Side by side
| ComfyUI | Pearl | |
|---|---|---|
| GitHub stars | ★ 145K | ★ 1.1K |
| License | GPL-3.0 | Apache-2.0 |
| Written in | Python | TypeScript |
| Last push | 2026-11-04 | 2026-04-30 |
| Forks | ⑂ 17K | ⑂ 181 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ComfyUI if
- You weight community size — 145K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick Pearl if
- You want the Pearl feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches TypeScript
- You evaluated both and Pearl fits your workflow better
About ComfyUI
ComfyUI The most powerful and modular AI engine for content creation. [![Website][website shield]][website url] [![Dynamic JSON Badge][discord shield]][discord url] [![Twitter][twitter shield]][twitter url] [![Matrix][matrix shield]][matrix url] [![][github release shield]][github release link] [![][github release date shield]][github release link] [![][github downloads shield]][github downloads link] [![][github downloads latest shield]][github downloads link] [matrix shield]: [matrix url]: [website shield]: [website url]: [discord shield]: [discord url]: [twitter shield]: [twitter url]: [github release…
read the full ComfyUI overview →
About Pearl
Bubble Lab Open core workflow engine powering Bubble Lab — and fully runnable, hostable, and extensible on its own. Use Bubble Lab Platform • View Demos • Documentation Editing Workflows Running Workflows 📋 Overview Bubble Lab is a Slack native AI operator platform that helps teams automate operational work directly inside Slack using Pearl, its AI assistant. Instead of switching between tools, teams can ask Pearl to execute workflows, access systems, and perform tasks across their stack. This repository contains the open core workflow engine that powers the Bubble Lab platform . It is the same execution engine…
read the full Pearl overview →
More in AI & Machine Learning
Related comparisons
More AI Interaction & Interfaces projects
Compare either of these against the rest of the AI Interaction & Interfaces field.
Frequently asked questions
Is ComfyUI or Pearl more popular?
ComfyUI has 145,017 GitHub stars and Pearl has 1,098. ComfyUI has the larger community by that measure.
Are ComfyUI and Pearl free?
Both are open source. ComfyUI is licensed under GPL-3.0 and Pearl under Apache-2.0. Neither carries a licence fee.
What is the difference between ComfyUI and Pearl?
ComfyUI is written in Python and Pearl in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ComfyUI or Pearl?
Choose ComfyUI if you want the larger community (145,017 stars) or its GPL-3.0 licence terms. Choose Pearl if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.