NDNCIStart from the GitHub preset with a complete example, then replace its content with your own charts. The preview updates as you edit the controls or click directly on the mockup.
Create your mockup
Choose the GitHub preset, edit the content and profiles, and customise its appearance. Use the timeline for animation, then download the result or save the editable project in local History.
Edit the GitHub contribution calendar by date and count. The preview updates its activity cells and contribution total from the same data.
Free exports and local projects
Your editable projects and imported images stay in this browser. Save your project in History or download an editable copy to keep it. Exports are free and have no watermark.