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🧵 Image Stitcher

Stitch multiple images into one right in your browser: horizontal join, vertical long-image, and grid presets from 1×2 to 6×6. Supports 4 alignment modes (same-side / cover / contain / stretch), independent outer padding and inner gap, solid or transparent background, global corner radius, optional border, per-cell rotate / flip, HTML5 drag-to-reorder with up/down arrow fallback, 15 social-size presets (RedNote / WeChat / Douyin / Instagram / Twitter / Bilibili / A4 300dpi), PNG / JPEG / WebP export with EXIF auto-strip, Web Share API for direct save-to-album. Local in-browser, bilingual zh/en UI, mobile-first 44px touch.

🔒 In-browser processing — your images are not uploaded by the tool

Drop 2-50 images here · click to choose · or paste with Ctrl+V

Supports JPG / PNG / WebP · ≤25 MB each · ≤200 MB total · HEIC needs conversion first

How to use · Scope & limits

Core modes

  • Horizontal: images side-by-side for comparisons or timelines.
  • Vertical: top-to-bottom long images for screenshots or comics.
  • Grid: N×M matrix for Moments 9-grid or product catalogs.

Alignment modes

  • Same-side：Scale to the first image, preserve original aspect, no cropping.
  • Cover：Center-crop to fill, edges may be cut.
  • Contain：Full image visible, gaps filled by background color.
  • Stretch：Stretched (not recommended for most cases).

Limits

  • Up to 50 images · 25 MB each · 200 MB total.
  • Canvas hard cap 16384 px (incl. iOS Safari). Over-sized outputs auto-downscale with a toast.
  • HEIC / TIFF are not supported. Convert them to JPG / PNG first with the format converter tool.
  • EXIF orientation is auto-applied on decode. EXIF metadata is stripped on export for privacy.

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In-browser image stitcher that combines multiple images into one. Three modes: horizontal join, vertical long-image, and grid presets from 1×2 up to 6×6. Four alignment modes (same-side / cover / contain / stretch), independent outer padding and inner gap sliders, solid or transparent background, global corner radius, optional border, per-image rotate 90° / horizontal flip / vertical flip, HTML5 drag-to-reorder on desktop with up/down buttons as the mobile fallback, 15 social-platform presets (RedNote / WeChat / Douyin / Instagram / Twitter / Pinterest / Bilibili / A4 300dpi), PNG / JPEG / WebP export with quality slider, automatic EXIF orientation correction with EXIF stripped on export, Web Share API for direct save-to-album. Local processing; images are not uploaded by the tool. No login, no watermark, no daily limits. Bilingual zh/en UI, 44px touch-optimized on mobile.