Instagram Image Resizer — Resize Photos for Instagram
Free online tool to resize images for Instagram. Generate profile picture, post, story, reels, and portrait sizes at exact dimensions. 100% client-side.
Why Use This Tool?
Instagram is the most visually demanding social platform — pixelated profile photos or awkwardly cropped posts immediately signal an unprofessional presence. Instagram resamples every upload, so starting with pixel-perfect dimensions keeps your images crisp and avoids unwanted cropping.
This tool generates all key Instagram image sizes from a single upload, with no quality loss from browser-side processing.
Instagram Image Size Guide (2026)
| Image Type | Size (pixels) | Aspect Ratio | Notes |
|---|---|---|---|
| Profile Picture | 320×320 | 1:1 | Displayed as circle, stored at 320px |
| Post Square | 1080×1080 | 1:1 | Classic format, works everywhere |
| Post Portrait | 1080×1350 | 4:5 | Takes up most feed space |
| Post Landscape | 1080×566 | ~1.91:1 | Widest allowed format |
| Story / Reels | 1080×1920 | 9:16 | Safe zone: center 1080×1420 |
Privacy First — 100% Client-Side
Your images are processed entirely in your browser using the HTML5 Canvas API. Nothing is uploaded to any server. You can verify this by disconnecting from the internet after loading the page — the tool works offline.
Tips for Instagram Images
- Profile pictures are displayed as circles — center your logo or face and leave breathing room around the edges.
- Portrait format (1080×1350) is the most space-efficient post type — it dominates the mobile feed and often drives higher engagement.
- Stories safe zone — keep text and logos between y=250 and y=1570; Instagram's interface overlays the top and bottom edges.
- Use PNG for graphics and logos with sharp edges; use JPG for photographs to reduce file size and faster load times.
- Instagram compresses uploads aggressively — always start from the highest quality source image available.