Refael EliyahuMarketing, Startup StashEconomics-trained and numbers-first. He owns content, SEO, and distribution here, and every tools page goes through him before the Fact-checked mark goes live.
OfflineStatus
BrowserPlatform
Some CharacterDeveloper
ExcalidrawSuggested swap
The short version
What happened to Mockingbird?
Mockingbird has shut down. The homepage at gomockingbird.com now says "Mockingbird is no longer in operation", so you can no longer sign up or open projects there.
Mockingbird was a web app for quick wireframes. You dragged UI elements onto a page, linked several pages together to click through the flow, and shared a link so teammates could edit with you in real time. The shutdown notice does not give a date. It points users to Excalidraw and tldraw for simple sketches, and to FigJam, MockFlow and Moqups for fuller mockup work.
Bottom line: For fast, rough wireframes, use Excalidraw or tldraw. For linked screens and a UI element library like Mockingbird had, try Moqups or MockFlow.
What it did
Key features
Drag-and-drop mockups
You placed UI elements on a page, then moved and resized them to sketch a screen in minutes.
Linked pages
Several mockups could be linked, so you could click from one screen to the next.
Interactive preview
A preview mode let you walk through the flow of an app before it was built.
Live collaboration
You could share a link so clients and teammates edited the same wireframe with you in real time.
What it cost
Mockingbird pricing
Option
Price
Status today
Mockingbird account
No longer sold
The service is shut down. Sign-ups and plans have ended.
Excalidraw
Free
Still available. A free, collaborative whiteboard in the browser, suggested by the Mockingbird team.
We could not confirm Mockingbird's last published prices, so none are shown.
Honest fit
What still works, and what doesn't
Still works
Free whiteboard sketching in Excalidraw or tldraw
Full wireframe and mockup tools such as Moqups and MockFlow
FigJam for team whiteboards next to Figma designs
No longer available
The Mockingbird editor at gomockingbird.com
New Mockingbird sign-ups
Opening or sharing old Mockingbird projects there
What people ask
Mockingbird FAQ
Is Mockingbird still working?
No. The gomockingbird.com homepage says Mockingbird has shut down and is no longer in operation. It is not a temporary outage.
What was Mockingbird?
A browser-based wireframe tool. It let you drag UI elements onto pages, link the pages into a clickable flow, and edit with others in real time.
What is the best Mockingbird alternative?
Excalidraw for quick sketches, Moqups or MockFlow for full wireframes. These come from the shutdown notice itself, which also lists tldraw and FigJam. More options are in our wireframe software category.
When did Mockingbird shut down?
The date is not published. The notice on gomockingbird.com does not say when the service stopped.
Who made Mockingbird?
Some Character LLC, a US company. That is the developer named on its AlternativeTo listing, which also marks the tool as shut down.