Image Resizer
Free Image Resizer Online – Resize & Crop Images Instantly(Instagram-Facebook-X-Youtube)
Image Resizer
Resize images online for free. Runs locally in your browser — no uploads.
You can check the presets!
Privacy: Runs locally. Your images are not uploaded.
How to Use: Free Image Resizer Online (Web Toolls)
Use this free image resizer to resize photos for social media, websites, and documents in seconds. Everything runs locally in your browser (no uploads, no tracking), so your images stay private.
- Upload an image (JPG, PNG, or WebP) using the file selector.
- Choose a preset (Instagram, YouTube, TikTok, etc.) or keep it on Custom.
- Set your Width and Height in pixels. Enable Lock aspect ratio to avoid stretching.
- Turn on Prevent upscaling to keep quality high (recommended).
- Select an Output format (keep original / JPEG / PNG / WebP). Adjust Quality for JPEG/WebP if needed.
- Click Resize to generate the preview.
- Click Download to save the resized image.
Best Sizes for Social Media (Quick Guide)
These sizes are commonly used for posts and vertical videos. For the best results, start with a high-resolution image and resize down.
| Platform | Use Case | Recommended Size | Aspect Ratio |
|---|---|---|---|
| Square Post | 1080 × 1080 | 1:1 | |
| Story / Reels Cover | 1080 × 1920 | 9:16 | |
| YouTube | Thumbnail | 1280 × 720 | 16:9 |
| TikTok | Vertical Video / Cover | 1080 × 1920 | 9:16 |
| Feed Post | 1200 × 630 | ~1.91:1 | |
| X (Twitter) | Post Image | 1200 × 675 | 16:9 |
| Post Image | 1200 × 627 | ~1.91:1 |
Tip: For Stories/Reels/TikTok (9:16), keep important text away from the top/bottom edges to avoid UI overlays.
Quality & Format Tips
- JPEG is best for photos (smaller size).
- PNG is best for logos and transparent backgrounds.
- WebP offers great quality with smaller file sizes.
- If your image looks blurry, disable Prevent upscaling and start from a higher-resolution source.
Privacy
This free converter tool works entirely in your browser using local processing. Your images are not uploaded or stored on any server.
Want more free tools? Explore Image Compressor, EXIF Data Remover, QR Code Generator, and more on webtoolls.com.