Built on Excalidraw · Open source

Draw.
Organize.
Remember.

The diagram editor that extends Excalidraw with multiple boards, integrated notes and optional Google Drive sync. Local-first. No artificial limits.

The problem

Does this sound familiar?

Ideas scattered across dozens of files

One file per project, no clear name, no context. Three weeks later, you can't tell what is what.

Every project needs its own space

You mix diagrams from different projects on the same canvas. Chaos grows with every work session.

The diagram alone doesn't tell the story

You share a diagram and nobody understands the context behind it. Technical decisions get lost.

You start on your laptop, end up somewhere else

Your diagrams are stored locally. When you need them on another device, they're no longer accessible.

Features

Everything you need,
nothing you don't.

Multiple boards

One board per project,
all organized.

Create as many boards as you have projects. Each board lives in its own space, with its own context. Built-in search to find what you need instantly.

  • Unlimited boards
  • Quick search by name
  • Thumbnail preview
  • Organization without forced folders
app.zeldraw.com/boards
Frontend
API
DB
Auth Service
Notes

SaaS Architecture v2

Frontend communicates with the API via REST.

→ Pending: migrate DB to PostgreSQL

Technical decisions

  • • Redis para cache
  • • CDN para assets
  • • WebSockets RT
Sistema

Notes

Technical decisions for the migration...

Integrated notes

The context the
diagram can't tell.

Each board has a rich-text notes panel, visible next to the canvas in a split view. Decisions, reasoning and documentation live beside the diagram, not in another file.

  • Rich-text editor (TipTap)
  • Resizable split view
  • Formatting: bold, lists, code...
  • Persistent context per board
Optional sync

Your data, in your Drive.
You decide.

Zeldraw works completely offline. If you want to access from another device, sync with your personal Google Drive. No proprietary servers storing your diagrams.

  • Works without an account or connection
  • Optional sync with Google Drive
  • Your data under your full control
  • Frictionless multi-device access
Local
Google Drive
Synced 2 minutes ago

Workflow

Get started in seconds.

01

Create a board

Give it a name and you'll have your own clean, ready workspace.

02

Draw

Use all Excalidraw tools. Arrows, shapes, freehand text, images.

03

Add notes

Open the side panel and document the context, decisions and next steps.

04

Sync (optional)

Connect your Google Drive to access from any device.

FAQ

Frequently asked questions

Is it free? +
Yes. Zeldraw is completely free. There are no paid plans or locked features.
Where is my data stored? +
By default, everything is saved in your browser (IndexedDB). If you enable sync, data goes to your own Google Drive. We store nothing.
Do I need an account to use it? +
No. You can create boards and work without any account. A Google account is only needed if you want to sync with Drive.
Is it officially affiliated with Excalidraw? +
No. Zeldraw is an independent project built on Excalidraw's open source engine (MIT license). It has no official affiliation with the Excalidraw team.
Does it work offline? +
Yes. Zeldraw is designed with a local-first approach. It works completely without an internet connection.

Start drawing.
Free. Now.

No sign-up. No credit card. No limits.
Just open your browser and start creating.

Create my first board