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Design and export production-ready database schemas and visual ERD tools.

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.
Website, pricing, platforms and company facts side by side.
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| Website | schemawavy.live | diffyn.com |
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| Company | Startup from Bangladesh · 1 - 9 employees · 2026 | — |
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In their own words, as submitted to SaaSHub.


Schemawavy is a visual database schema designer that does what other ERD tools can't: live DDL side panel, custom ENUM/composite type support, smart relationship auto-detection on SQL import, and built-in version history with diff. Design visually, see your SQL update in real-time, export clean...
No description of Diffyn yet.
What each product offers, as listed by its team.


An editorial look at what each product does well and who it suits.


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The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Schemawavy.live and Diffyn.
Schemawavy.live's answer
It features a synced 3-panel layout where dragging tables visually generates production-ready SQL in real-time, and pasting raw SQL dumps instantly auto-generates visual ERD diagrams.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Schemawavy.live's answer
We offer a $99 Lifetime Deal (no monthly subscriptions) for a developer-first tool with live DDL generation, native SQL types, and instant database reverse-engineering.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Schemawavy.live's answer
It is a modern web app built with Next.js, Tailwind CSS, NestJS, PostgreSQL, Prisma ORM, and Redis, hosted securely on Hetzner Cloud Platform.
Diffyn's answer:
React, Next.js, POSTGRESQL
Schemawavy.live's answer
Freelance backend developers, software agency owners, and startup founders who need to plan architectures or export professional ERDs for client handoffs.
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Schemawavy.live's answer
As a solo dev from Bangladesh, I got sick of paying expensive monthly subscriptions just to draw database tables, so I built my own real-time ERD canvas to help other founders escape subscription fatigue.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
Schemawavy.live's answer
Freelance Full-Stack Developers Independent Software Agencies Bootstrapped SaaS Founders Startup CTOs
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