Image Resizer
Set an exact width and height, or scale by percentage, and export the resized file.
What This Tool Does
This resizer changes a picture's pixel dimensions. Load a file, choose a target width and height (or a percentage of the original), and the browser redraws the pixels onto a canvas at the new size before you save the result.
Steps to Resize a Picture
- Drop a picture into the box above, or click it to browse your device
- Type the width and height you want in pixels, or switch to percentage mode
- Toggle the ratio lock if you want height to follow width automatically
- Press Resize, then Download to save the new file
What You Can Control
- Exact pixel width and height, entered separately or locked to one ratio
- Percentage scaling from 1% up to 400% of the original size
- Export as JPG, PNG, or WebP regardless of the source format
- One-click presets for common platform sizes like Instagram, Facebook, LinkedIn, and YouTube
- A live preview so you see the new dimensions before saving
Common Sizes for Popular Platforms
Pick a preset from the dropdown in the tool above to fill in the exact width and height automatically, or use this table as a reference.
| Instagram — square post | 1080 × 1080 px (1:1) |
| Instagram — portrait post | 1080 × 1350 px (4:5) |
| Instagram — Story / Reel | 1080 × 1920 px (9:16) |
| Instagram / Facebook — profile picture | 320 × 320 px (1:1) |
| Facebook — shared post / link image | 1200 × 630 px (1.91:1) |
| Facebook — cover photo | 851 × 315 px (2.7:1) |
| X (Twitter) — in-stream image | 1600 × 900 px (16:9) |
| X (Twitter) — header photo | 1500 × 500 px (3:1) |
| X / TikTok — profile picture | 400 × 400 px (1:1) |
| LinkedIn — single image post | 1200 × 1200 px (1:1) |
| LinkedIn — personal banner | 1584 × 396 px (4:1) |
| LinkedIn — company page cover | 1128 × 191 px |
| YouTube — video thumbnail | 1280 × 720 px (16:9) |
| YouTube — channel banner | 2560 × 1440 px (16:9, center-safe 1546 × 423) |
| Pinterest — standard pin | 1000 × 1500 px (2:3) |
| TikTok — photo post / cover | 1080 × 1920 px (9:16) |
Platforms adjust these from time to time and may display images slightly differently across desktop and mobile. For anything mission-critical, double-check against the platform's current help documentation before publishing.
Frequently Asked Questions
Will resizing blur my picture?
Making an image larger than its original resolution can soften fine detail because the browser is inventing new pixels. Shrinking a picture rarely causes noticeable blur.
What is the difference between pixel mode and percentage mode?
Pixel mode sets an exact width and height in pixels. Percentage mode scales the current size up or down by a ratio, so 50% produces an image half as wide and half as tall.
Does resizing also reduce the file size?
Usually, yes, since fewer pixels generally means fewer bytes, but resizing and compressing are different things. If a form or site caps the file size in KB rather than pixels, use the quality slider or a dedicated compressor after resizing to hit that target.
Does the ratio lock change my picture's proportions?
No. With the lock on, changing the width automatically recalculates the height so the picture is not stretched or squashed.
Can I resize a photo to match a spec like a profile picture or passport photo?
Yes, as long as you know the required pixel dimensions. Enter that exact width and height in pixel mode and the image is redrawn to fit, whether it's a social media profile picture, a passport photo, or a size a form asks for.
Is my photo uploaded to a server?
No. The resizing happens entirely in your browser's memory. The file is never sent anywhere, and nothing is kept once you close or navigate away from the page.
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