Resize JPG Images Online
Resize JPG and JPEG photos by exact pixels or percentage, with adjustable quality to keep file size down. Everything runs in your browser — your photos are never uploaded.
- Private — no upload
- No signup
- Free & unlimited
To resize a JPG online, enter new pixel dimensions or a percentage, choose a quality level, and download. Processing happens in your browser, so your photos are never uploaded.
How to resize a JPG
- Drop your JPG. Drop your JPG/JPEG into the box above, or click to browse.
- Set size & quality. Enter width/height or a percentage, then choose output quality.
- Download. Download your resized JPG instantly.
Choosing a JPG quality setting
JPG quality is a trade, not a switch. The number controls how aggressively fine detail is discarded. File size follows it steeply, while visible quality holds up far longer than most people expect.
| Quality | How it looks | Good for |
|---|---|---|
| 95–100 | Indistinguishable from the original, large file | Archiving, print |
| 85–92 | No visible loss at normal viewing size | Most web and app use |
| 70–80 | Slight softening in fine detail | Thumbnails, email |
| Below 60 | Visible blocking around edges and gradients | Only when a hard size limit forces it |
If you are unsure, 85–90 removes most of the file size and almost none of the visible quality.
Every JPG save loses a little detail
JPG is a lossy format, so each save permanently discards information. Resize a JPG, save it, then resize that copy, and the degradation compounds — an effect known as generation loss.
It is nothing to worry about for a single resize. It is a good reason to always work from the original file rather than from a copy you already compressed: keep the original, and export a fresh version from it each time you need a new size.
Common photo dimensions
| Use case | Dimensions |
|---|---|
| Full HD wallpaper or hero image | 1920×1080 |
| Instagram square | 1080×1080 |
| Instagram story or reel | 1080×1920 |
| YouTube thumbnail | 1280×720 |
| LinkedIn profile photo | 400×400 |
| Passport-style (35×45 mm, 300 dpi) | 413×531 |
Why use ResizeMate
Private
Images are processed in your browser and never uploaded to a server.
Fast
No upload/download round-trip — results are instant on your device.
Free
No signup, no watermark, no limits.
Frequently asked questions
- How do I resize a JPG without losing quality?
- Scaling down retains quality well. Keep output quality at 85–92% for a sharp image with a smaller file size.
- Are my photos uploaded anywhere?
- No — resizing happens entirely in your browser.
- Is it free?
- Yes — free, unlimited, no signup, no watermark.