AI · alternatives · 2026
24 alternatives to Spring AI Playground
One UI for MCP, RAG, and LLM Chat
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1AP
Hey, Jared Palmer (creator of this playground) here. Really excited to ship this. I’ve been building this over the past few weeks to compare LLMs from different providers like OpenAI, Anthropic, Cohere, etc. At Vercel, I manage our Frameworks division (including Next.js, Svelte, and Turbo) and wanted to also dogfood some of the latest features in a slightly larger application. This playground takes a lot of inspiration from https://nat.dev and is built on Tailwind, ui.shadcn.com, and some upcoming Vercel products we’re announcing soon. We’re going to continue adding models to…
2023 · play.vercel.ai · its alternatives →
- 2
LLMWare▲358Dev tool to make AI apps to deploy privately or locally
2024 · llmware.ai · its alternatives →
- 3
- 4
Browser-based MCP server testing with AI chat integration
Oct 2025 · starbase.sh · its alternatives →
- 5
Vectorize 2.0▲335Complete RAG agents (chatbot, MCP) with little or no code
2025 · platform.vectorize.io · its alternatives →
- 6TA
I built this tool because I wanted a way to just take a bunch of URLs or domains, and query their content in RAG applications. It takes away the pain of crawling, extracting content, chunking, vectorizing, and updating periodically. I'm curious to see if it can be useful to others. I meant to launch this six months ago but life got in the way...
2024 · embedding.io · its alternatives →
- 7HW
TL;DR: Vector-based RAG performs poorly for many real-world applications like codebase chats, and you should consider 'language maps'. Part of our mission at Mutable.ai is to make it much easier for developers to build and understand software. One of the natural ways to do this is to create a codebase chat, that answer questions about your repo and help you build features. It might seem simple to plug in your codebase into a state-of-the-art LLM, but LLMs have two limitations that make human-level assistance with code difficult: 1. They currently have context windows that are too small to…
2024 · twitter.com · its alternatives →
- 8
Save 80% on AI Subscriptions and prompt up to 4 models!
2025 · playground.chat · its alternatives →
- 9
Vamah.ai MCP▲208Build and deploy web apps straight from ChatGPT/Claude
Feb 2026 · vamah.ai · its alternatives →
- 10
Heym▲83Self-hosted AI workflow automation with agents, RAG, and MCP
Apr 2026 · heym.run · its alternatives →
- 11
RAGaaS▲75The API for building production-ready AI apps with your data
2025 · sitegpt.ai · its alternatives →
- 12
MCP Playground▲160Open-source MCP playground to test and introspect servers
Nov 2025 · mcpplayground.io · its alternatives →
- 13
Test LLM prompts & models side-by-side against many inputs
2024 · its alternatives →
- 14WM
2025 · npmjs.com · its alternatives →
- 15OS
2023 · chathub.gg · its alternatives →
- 16
- 17
Experiment with, and evaluate, prompts and LLMs
2023 · its alternatives →
- 18IM
I built this out of frustration as I lead the development of AI features at Yola.com. Prompt testing should be simple and straightforward. All I wanted was a simple way to test prompts with variables and jinja2 templates across different models, ideally somthing I could open during a call, run few tests, and share results with my team. But every tool I tried hit me with a clunky UI, required login and API keys, or forced a lengthy setup process. And that's not all. Then came the pricing. The last quote I got for one of the tools on the market was $6,000/year for a team of 16 people in a…
2025 · langfa.st · its alternatives →
- 19PF
Hey everyone, I'm Petr. I'm excited to share LangTale Playground (https://langtale.ai/playground), a first-of-its-kind tool enabling anyone to experiment with OpenAI function calls without coding. Born out of a hackathon project, it's now a part of our broader LangTale platform aimed at tackling common developer challenges with Language Learning Models (LLM). These include prompt integration, testing and debugging, version control, auditing, and usage/cost management. Here's our tech stack: Next.js by Vercel, Tailwind CSS, OpenAI, PlanetScale's Vitess database, and the…
2023 · langtale.ai · its alternatives →
- 20
AI, chatbot, RAG, graph RAG, RAG models, customization
2025 · its alternatives →
- 21OS
Hi HN, We're a small team building AI tutors out of India, and as you might guess, this means we spend a ton of time writing, testing, and refining prompts for LLMs. When we started out, we were using the OpenAI playground but things became tedious when we wanted to compare responses from different models. We tried a bunch of other playgrounds but found them lacking in some features so we built our own. Quick Links: Github: https://github.com/supernova-app/ai-playground Hosted demo: http://playground.getsupernova.ai Demo video:…
2025 · playground.getsupernova.ai · its alternatives →
- 22
- 23
I've been presenting at local meetups about Context Engineering, RAG, Skills, etc.. I even have a vbrownbag coming up on LinkedIn about this topic so I figured I would make a basic example that uses bedrock so I can use it in my talks or vbrownbags. Hopefully it's useful.
Apr 2026 · github.com · its alternatives →
- 24
A UI Kit for Transactional LLM apps
2025 · mrikal.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →