Resize Image Online — Scale Photos to Exact Dimensions
Change the pixel dimensions of any photo without desktop software. Resize Image is designed for creators who need exact output sizes: Instagram posts, Stories, profile pictures, wallpapers, or custom banner widths. Pick a preset or enter dimensions manually, scale your photo inside the frame, and export — all on your device.
How to use this tool
- Open Resize Image and upload your photo (JPG, PNG, or WebP).
- Select a size preset — Instagram Post, Reels, wallpaper, Pinterest, or custom pixels.
- Drag the image inside the frame to choose which part stays visible.
- Use the scale slider to zoom in or out until the composition looks right.
- Download your resized PNG at the exact width and height you selected.
Examples & use cases
Resize for Instagram Post (1080×1350)
Select the Post Portrait preset and scale your landscape photo so the subject fills a 4:5 feed frame without uploading to a third-party app.
Create a phone wallpaper (1080×1920)
Use the Phone Portrait preset, zoom into your photo, and export a vertical wallpaper sized for most smartphones.
Shrink a large photo for email
Enter custom dimensions like 1200×800 to reduce file size while keeping enough detail for sharing.
Match LinkedIn banner specs
Pick the LinkedIn Cover preset (1584×396) and position your brand image inside the safe area before uploading to your profile.
Frequently asked questions
- What is the difference between resize and crop?
- Resize Image changes the output canvas to exact pixel dimensions and lets you scale the photo inside that frame. Crop Image focuses on cutting out a region (like a square post). Both tools use the same engine but target different search needs.
- Will resizing reduce image quality?
- Exporting to a smaller size than your original generally looks sharp if you start with a high-resolution file. Avoid upscaling far beyond the original resolution for best results.
- Which Instagram sizes are supported?
- Presets include Reels & Stories (1080×1920), Post Square (1080×1080), Post Portrait (1080×1350), and Post Landscape (1080×566).
- Can I enter custom width and height?
- Yes. After choosing a preset you can fine-tune the numeric fields, or type any custom dimensions you need.
- Do I need an account to resize images?
- No. The tool is free and works instantly in your browser with no sign-up.