Skip to content

Studio Sync Live Rooms

Studio Sync Live Rooms Collections Open Source Privacy tools Feedback Features Changelog FAQ Privacy Terms Legal notice API docs Tips & tricks Roadmap Browser extension

Loading…

Tools

All tools
Collections
Open source tools
Privacy tools

Studios

PDF Studio
Image Studio
Paint Studio
Video Studio
HTML Studio
And many more

Resources

Features
Tips & tricks
Glossary
Changelog
FAQ
API docs
Roadmap
Browser extension
Sync devices
Live Rooms
Upload file

Legal

Privacy
Terms
Legal notice
GDPR
Cookie notice
FAQ
Contact
Feedback
Privacy matrix
Our mission
Brand assets
Software licenses

Popular guides

Merge PDF
Compress PDF
Split PDF
JSON formatter
UUID generator
Password generator
QR code
Regex tester
Compress image
E-Rechnung hub
XRechnung validator
Sign PDF
JWT decoder
Base64 encoder
Hash generator
PDF OCR
HEIC to JPG
Resize image
Cancellation letter
Invoice template

PDF tools

Merge PDF
Compress PDF
Split PDF
Sign PDF
PDF OCR

Image

Compress image
Resize image
HEIC to JPG
QR code
Video Studio

OCR & convert

PDF OCR
HEIC to JPG
Resize image
HTML minifier

Stay in the loop

Get updates on new tools, features, and improvements.

Your email address

No spam. Promise.

© 2026 Tentaco – Made with 💜 in the browser.

Local-first
•
Cloud optional
•
Works offline
•
Open source

Privacy Terms Legal notice GDPR Cookie notice FAQ Contact Open source tools Software licenses

Home
Free design tools online
Whiteboard online — free

Whiteboard

Whiteboard online — free

Sketch with Excalidraw — export PNG or .excalidraw locally.

Use the tool

Full tool — runs in your browser. No sign-up required.

More options in Design Studio

Loading…

More in Free design tools online

Sketch with Excalidraw — export PNG or .excalidraw locally.

Developer utilities should be fast, copy-friendly, and predictable. Paste or drop input, get a reliable result — no CLI install required.

Use this free Whiteboard whenever you need a browser-local result without creating an account.

Why use this tool?

Runs locally in your browser
No sign-up required
Free on Tentaco

How it works

Open the Whiteboard page — no registration required.
Paste, upload, or configure your input.
Review the live result and adjust options.
Copy or download the output to your device.

Common use cases

Use Whiteboard for quick local work without installing desktop software
Prototype a workflow before automating it elsewhere
Share a reproducible browser-local result with teammates
Keep sensitive input on your device

Tips & comparisons

1vs desktop installs: Tentaco runs in the browser with no account wall
2vs cloud upload tools: processing stays local when the mode supports it

Privacy & data handling

Processing is designed to stay in your browser session unless a mode explicitly notes a network call.

LocalThis tool processes data locally in your browser. Tentaco does not receive your file contents for this mode.

File transfer: No — files stay on your device
Processing: Locally in the browser
External APIs: None for this tool
Temporary storage: Browser memory only while the tab is open
Permanent storage: Only if you download or save the result yourself

Whiteboard online — free

Open Design Studio

Frequently asked questions

What does this whiteboard tool do?

Sketch with Excalidraw — export PNG or . Open the tool in your browser — no account or install required.

Does it support Runs locally in your browser?

Yes — runs locally in your browser.

Is my data sent to a server?

No — processing runs locally in your browser. Your files and inputs do not leave your device unless the tool explicitly uses the network.

Related guides

Design Studio online — free in your browser
Colors, gradients and CSS design generators in one workspace. Tentaco Design Studio: review input and get an instant result — free, no sign-up.
QR Scanner online — free
Scan QR codes with your camera — decode locally.
Breakpoint Editor online — free
Edit responsive media-query breakpoints in HTML Studio.
Neumorphism Generator online — free
Generate soft UI neumorphic CSS. Tentaco Neumorphism Generator: review input and get an instant result — free, no sign-up.
CSS Variables online — free
Inspect and edit CSS custom properties in your project.
Glassmorphism Generator online — free
Generate frosted-glass CSS. Tentaco Glassmorphism Generator: review input and get an instant result — free, no sign-up.
Design Tokens online — free
Browse and export design tokens from HTML Studio.
Tailwind Playground online — free
Preview HTML with Tailwind CDN classes. Tentaco Tailwind Playground: review input and get an instant result — free, no sign-up.

Browse all tools