How to Use Interlock
Interlock builds grids of interlocking pieces that are also editable Canva frames. Open it from your Canva Apps panel and pick a mode:
Tips for Best Results
Pick a grid that fits your photo: In "from a photo" mode the columns and rows are pre-set to keep pieces close to square. You can adjust them — fewer, larger pieces read more clearly at small sizes.
Use transparent backgrounds for Frame mode: Frame mode traces the visible (opaque) area of your image, so remove the background first for a clean frame outline.
Adjust precision (Frame mode): Use the precision slider to control detail. Higher precision captures more, but very intricate shapes may be simplified to stay within Canva's shape path limits. Start with Default and increase if needed.
Swap photos any time: Because every piece is a real Canva frame, you can drag in a new photo, replace it, or reposition it later — the same way you edit any frame.
Frequently Asked Questions
Is Interlock free?
Yes, Interlock is completely free with no hidden costs, subscriptions, or premium features.
Are my images uploaded to a server?
No. All image processing happens locally in your browser. Your images never leave your device.
What's the difference between the puzzle pieces and a normal photo jigsaw?
Interlock's pieces are editable drop-target frames, not a flattened picture. You can drop a different photo into each piece, swap them, and rearrange the layout — it stays an interactive template.
My photo looks stretched in the puzzle.
Use the "from a photo" mode, which auto-fits the columns and rows to your image's aspect ratio. If you changed the grid manually, try the suggested values to keep pieces close to square.
Why is my traced frame not detailed enough? (Frame mode)
Try increasing the precision slider. If the shape is very complex, Interlock may simplify it to stay within Canva's 2KB path limit. A smaller source image (under 500px) also helps.
The app says my design type is not supported. What do I do?
Interlock uses shape and frame elements, which are not available in Canva Docs. Open a regular design (poster, presentation, social media post, etc.) to use Interlock.