Free Image Resizer
Resize images to exact pixel dimensions or by percentage. Preset social media sizes (Instagram square, YouTube thumbnail, OG image, profile photo). Maintains aspect ratio. Free, in your browser.
Drop an image or click to browse
JPG, PNG, WebP, GIF, BMP — processed locally in your browser.
More image tools
Frequently asked questions
Can I resize for specific social platforms?
Yes. The preset menu has dimensions for Instagram post / story / reel, Twitter card / header, Facebook cover, LinkedIn cover / post, YouTube thumbnail, TikTok video, and more — all 2026-current.
Will resizing crop my image?
Only if you turn on 'crop to fit'. By default, the resizer keeps your original aspect ratio and adds nothing — the output is exactly as wide × tall as requested.
What format is the output?
The format matches your input by default. You can override and choose JPEG, PNG, WebP, or AVIF for the output.
Is there a file size limit?
No hard limit — the resizer runs in your browser, so you're limited only by your device memory. Files under 50 MB resize instantly; larger files may take a few seconds.
Resize images to exact pixel dimensions or pick a social platform preset (Instagram post, Twitter card, LinkedIn cover, YouTube thumbnail, and more).
How to use
- 1Upload your image.
- 2Pick a social preset or enter custom dimensions.
- 3Toggle 'crop to fit' if needed — defaults to keeping aspect ratio.
- 4Pick output format (JPEG / PNG / WebP / AVIF).
- 5Download the resized image.
Why use this tool
- 2026-current social preset list (all platforms, all formats).
- Maintains aspect ratio by default — no awkward stretching.
- Output format choice — convert + resize in one step.
Real-world examples
Instagram cross-post
One photo → resize to 1080×1080 (post) + 1080×1920 (story) + 1080×1350 (reel) — all from one preset menu.
YouTube thumbnail
1280×720 preset → upload any image → instantly correct thumbnail dimensions.