About this Collage & Grid Maker
This free collage builder runs entirely in your browser—no uploads, no sign-ups, no watermarks. Drop in your photos and get clean, modern layouts with auto grids, rounded corners, margins & gaps, and per-image captions. Export high-quality PNG/JPEG/WebP in one click.
Key features
- Auto layouts that adapt to 1–9 photos (plus curated templates)
- Smart fit: Cover (fill & crop edges) or Contain (letterbox)
- Margins, tile gaps, rounded corners with live preview
- Per-image captions with readable overlays
- Social size presets: Square, Portrait, Landscape, Link (1200×628), Story/Reel
- Custom canvas size up to 8000 × 8000 px (browser-dependent)
- Fast export to PNG, JPEG, or WebP with quality control
- Privacy-friendly: all processing happens locally on your device
How to use
- Click Add photos or drag & drop your images.
- Reorder with the ↑/↓ buttons and optionally add a caption for each image.
- Pick a Layout (Auto or a curated template) and choose Fit mode (Cover/Contain).
- Tune Outer margin, Gap, Corner radius, and Background color.
- Select a Size preset (e.g., 1080×1080) or enter a Custom width/height.
- Choose an Export format and Quality, then click Download.
Templates & auto layout
Auto layout picks a near-square grid that best fits your photo count. Prefer a specific style? Choose a curated template (e.g., 2-up horizontal, 3: big + two, 2×2 grid, 3×3 grid, magazine, mosaic). Each template uses clean spacing, balanced proportions, and rounded corners for a polished look.
Social size presets
- Square — 1080 × 1080 (Instagram feed)
- Portrait — 1080 × 1350 (Instagram portrait)
- Landscape — 1920 × 1080 (HD)
- Link preview — 1200 × 628 (Open Graph / social link)
- Story / Reel — 1080 × 1920 (vertical)
Tips
- Use Cover for edge-to-edge tiles; switch to Contain to keep full images without cropping.
- Big canvases (e.g., posters) work best on desktop with plenty of RAM and a modern browser.
- For web sharing, try WebP at 80–90% quality for smaller files.
- Captions are optional—keep them short and high-contrast photos will remain readable thanks to the subtle backdrop.
Privacy
Your photos never leave your device. Everything is computed locally in your browser using HTML Canvas.