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ER Diagram
Design database schemas online — free, no signup needed
Simple, fast ER diagram editor — design databases visually without the bloat. Free guest mode, DBML import/export, version history. No signup required.
Hey Product Hunt 👋
I'm the maker of ER Diagram.
This started from a small annoyance: I just wanted to sketch a database schema — five tables, a couple of foreign keys — and every tool I tried made me create an account and confirm my email before I could draw a single box. For a thirty-second sketch.
So I built the thing I wanted: you land on the page and start drawing immediately. No signup, no modal, nothing in the way. Guest diagrams are saved locally in your browser, so a reload won't wipe your work. You only need an account if you want cloud sync or sharing.
A few things it does:
• Import & export SQL DDL and DBML — it round-trips, so you're never locked in
• Drag-to-connect foreign keys, auto-layout, PNG/SVG export
• Prebuilt schema templates (e-commerce, blog, SaaS, hospital, and more)
• Works in 10 languages
On the tech side: it's SvelteKit (Svelte 5) with a Canvas renderer (LeaferJS) instead of DOM nodes, so it stays smooth even with a lot of tables.
It's free to use. I'd genuinely love your feedback — especially if you throw a messy real-world schema at it and the layout does something silly. I'll be around all day answering questions 🙏
→ https://erdiagram.dev/?utm_sourc...
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About ER Diagram on Product Hunt
“Design database schemas online — free, no signup needed”
ER Diagram was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #115 on the daily leaderboard. Simple, fast ER diagram editor — design databases visually without the bloat. Free guest mode, DBML import/export, version history. No signup required.
ER Diagram was featured in Design Tools (260.7k followers), SaaS (42.5k followers) and Developer Tools (514k followers) on Product Hunt. Together, these topics include over 156.9k products, making this a competitive space to launch in.
Who hunted ER Diagram?
ER Diagram was hunted by erdiagram.dev. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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