Image Resizer

Each preset sets the exact pixel dimensions recommended by that platform. Selecting Instagram Square sets 1080 × 1080 pixels, YouTube Thumbnail sets 1280 × 720, and so on. After selecting a preset, the width and height fields update instantly and the resized preview refreshes automatically. You can then fine-tune the dimensions manually if needed.

When the padlock is closed, changing the width automatically adjusts the height to keep the same proportions as the original image, and vice versa. This prevents stretching or squashing. When you unlock the padlock, you can enter any width and height independently, which is useful for platform presets that intentionally change the image to a specific shape such as a square or wide banner.

Use JPG for photos and social media uploads where a small file size matters and slight compression is acceptable. Use PNG when you need a lossless result, such as screenshots, logos, or images with transparent backgrounds, PNG ignores the quality slider because it is always lossless. Use WEBP for the best balance of quality and file size on modern websites and browsers. To reduce file size further after resizing, use the Image Compressor.

No. The entire resize operation runs in your browser. Your image never leaves your device, is never stored on a server, and is never shared with any third party. All temporary data is cleared when you close the tool or the tab. Because processing is local, the upload speed of your internet connection does not affect the resize, and private photos never need to leave your device. Your data is never used to train AI models or improve machine learning systems.

The quality slider controls how much the JPEG or WEBP encoder compresses the image data. A higher value means less compression and a larger, sharper file. A lower value produces a smaller file but with more visible compression artifacts. The slider has no effect on PNG output because PNG is always lossless. Reducing quality is useful when you need the resized image to stay under an upload size limit.

No. The downloaded file is clean, no watermark, no logo, no branding overlay of any kind. The only changes are the new pixel dimensions and the output format you selected. The tool is completely free to use and adding a watermark is never required, not even for large images or repeat use.

The tool supports output dimensions up to 8000 × 8000 pixels, which covers print and high-resolution display requirements. Very large canvas sizes can use significant browser memory, so extremely large outputs may be slow on older or low-memory devices. For most social media and web use cases, outputs between 500 and 2560 pixels wide are recommended.