# Six-IR

> Six-IR (short for Six Image Resizer; also written SixIR, Six IR or 6IR) is a free online image resizer that runs in the browser. It resizes photos for Instagram, TikTok, YouTube, LinkedIn, Facebook, X, Pinterest, print and the web, shrinks files under the KB limit you set, opens iPhone HEIC photos, and removes backgrounds with AI. No account, no watermark, and photos are not uploaded.

Key facts:
- Free to use with no account. No watermark.
- Photos are processed in the browser and are not uploaded. Exception: the optional generative AI tools (expand, edit with words, face swap, create) send the photo to an AI service to make the result.
- Opens JPG, PNG, WebP and iPhone HEIC (up to 30 MB each). Saves JPG, PNG or WebP.
- 24 built-in platform sizes plus any custom width and height.
- Smart crop keeps faces in frame; Fit keeps the whole photo on a blur or colour.
- Maximum file size in KB: saves a JPG or WebP at the highest quality that fits (for example under 100 KB); a PNG is saved as JPG.
- Batch: up to 10 photos and 80 files at once, free, each photo in the sizes ticked, in one zip.
- Free AI background removal and object erase, running on the device. Free AI upscale ×4 for photos up to 512 px.
- Made by Tyeke's Media of Fort Gibson, Oklahoma, USA (https://tyekesmedia.com). Instagram: https://www.instagram.com/six.ir/ . TikTok: https://www.tiktok.com/@six.ir . Contact: support@six-ir.com

## Use it
- [Resizer](https://six-ir.com/app): resize one photo
- [Batch](https://six-ir.com/batch): resize up to 10 photos and 80 files at once, in one zip
- [About Six-IR](https://six-ir.com/about): what it is, what's free, questions
- AI connector (MCP server, Streamable HTTP, no sign-in): https://six-ir.com/mcp . Listed in Claude's connector directory (https://claude.ai/directory/six-ir) and the official MCP Registry as com.six-ir/six-ir. Setup: https://six-ir.com/ai . Tools: get_image_sizes (pixel sizes for a platform) and make_resize_link (a link that opens the resizer with a size and/or KB limit set). It never receives photos.

## Image size guides (pixels, checked October 2026)
- [All sizes](https://six-ir.com/sizes)
- [Instagram](https://six-ir.com/sizes/instagram): post 1080 × 1350 (4:5) or 1080 × 1080, Story/Reel 1080 × 1920
- [TikTok](https://six-ir.com/sizes/tiktok): cover 1080 × 1920
- [YouTube](https://six-ir.com/sizes/youtube): thumbnail 1280 × 720, banner 2560 × 1440
- [Facebook](https://six-ir.com/sizes/facebook): post 1080 × 1350, page cover 851 × 315
- [LinkedIn](https://six-ir.com/sizes/linkedin): post 1200 × 627, cover 1584 × 396
- [X (Twitter)](https://six-ir.com/sizes/x-twitter): post 1600 × 900, header 1500 × 500
- [Pinterest](https://six-ir.com/sizes/pinterest): pin 1000 × 1500
- [Print at 300 dpi](https://six-ir.com/sizes/print): 4 × 6 in = 1200 × 1800
- [Web](https://six-ir.com/sizes/web): link preview 1200 × 630
- [Reduce file size](https://six-ir.com/sizes/reduce-file-size): under 100 KB, 200 KB, 1 MB

## Optional
- [Privacy](https://six-ir.com/privacy)
- [Terms](https://six-ir.com/terms)