Replit
The top alternatives to Glue in the No-Code AI Builders space, compared on features, pricing, and what they're best at.
Updated March 27, 2026
Glue is an open-source design editor that gives AI coding agents an infinite canvas to create and iterate on UI components, then export production-ready code in real time. Part of YC W2026, it was founded by Perbhat Kumar (ex-Amazon Kindle, ex-Microsoft Copilot Studio) and Tejas Priyadarshi (ex-Microsoft, ex-Meta).
One platform for routing, observability, tracing, and evals across every LLM provider.
Open WebUI
Self-hosted ChatGPT-style UI for Ollama + OpenAI-compatible APIs
Respan lets you trace LLM and agent calls across any model or framework, A/B test prompts on production traffic, and route requests across 500+ models through one gateway.