Resize Image — Exact Pixels, Locked Aspect Ratio
Scale any photo to exact pixels or a quick percentage with aspect ratio lock — free, instant and watermark-free, right inside your browser.
Drop your image here
or click to browse — you can also paste with Ctrl+V
Original: —
🔒 Processed entirely in your browser — your image is never uploaded. Downloads also strip GPS and other metadata.
How to resize an image
- Drop your photo into the box above, click to browse, or paste it with Ctrl+V.
- Type an exact width or height, or tap a percentage button — with the lock on, the other side adjusts so proportions never distort.
- Press Download Image to save the resized file at full quality — no watermark, no signup.
Exact pixels or one-tap percentages
Sometimes you need a photo that is exactly 1920 pixels wide for a banner, or a screenshot scaled to half size for a documentation page. Type the numbers and the resizer does the rest — the other dimension follows automatically when the aspect lock is on, and the output size is shown before you download. For quick work, the 25 / 50 / 75 / 100% buttons resize in one tap, which is usually all a retina screenshot needs to become email-friendly.
High-quality scaling, transparency intact
Downscaling uses the browser's high-quality smoothing, so shrunken photos stay crisp instead of turning jagged. Because resizing only moves pixels around — it never rewrites colors — PNG logos and stickers keep every bit of their transparency, and the downloaded file keeps its original format, whether that was JPG, PNG or WebP.
Resize images on any device
There is nothing to install. Open this page on an iPhone, an Android phone, a tablet or a desktop browser and the same workflow is there. Because everything is processed locally in your browser with JavaScript, your photos are never uploaded to a server — you could disconnect from the internet after the page loads and the tool would still work.
More free image tools
Negato's geometry family keeps pixels precise — resize, flip and rotate — while color tools cover the rest. Invert image colors to create a photo negative, flip or rotate a picture, compress it to a smaller file size, convert to grayscale, or edit PNG colors — all free and watermark-free.
Frequently asked questions
Does resizing an image reduce quality?
Shrinking an image keeps it looking sharp at any size — the resizer uses high-quality smoothing so details stay clean. Enlarging stretches the same pixels over more space, which softens fine details; going 2× is usually fine, beyond that expect visible blur.
What does the lock button do?
It keeps the aspect ratio. With the lock on, changing the width automatically sets the height to match, so your photo never gets stretched or squashed. Turn the lock off only if you deliberately want to distort the proportions.
Will my PNG stay transparent after resizing?
Yes. Resizing only scales pixels and never touches colors or the alpha channel, so transparent and semi-transparent areas stay exactly as transparent as they were.
How large an image can I upload?
Files up to 30 MB are fine. Extremely large pictures — beyond roughly 16 megapixels — are gently scaled down first so every browser can handle them; you will see a message with the new dimensions if that happens.
Can I rotate or flip after resizing?
Sure — the download is a clean, full-quality file, so it drops straight into our rotation tool or flip tool for the next step. Each tool does one job and passes the result along losslessly.
Will upscaling make my image blurry?
Enlargement always adds pixels that were not in the original, and this tool interpolates them smoothly rather than inventing detail — so a 2× upscale of a photo looks soft but clean, while logos and flat art usually scale almost perfectly. For best results, resize down or keep the scale under about 150%.
Can I resize many images at once?
This page resizes one image at a time so the live width and height inputs stay instant. For a batch, open a few tabs — nothing is uploaded, so each tab resizes at full local speed with the exact same settings.
Do downscaled images stay sharp for web use?
Yes — shrinking is the safe direction: downscaling averages real pixels, so detail stays crisp and file sizes drop. Export at exactly the pixel width your layout needs instead of letting the browser shrink a huge original; pages load faster and text in screenshots stays readable.
Invert Image
Turn any picture into a color negative — all colors, single RGB channels or grayscale.
Open the inverter →Flip Image
Mirror horizontally, flip vertically, or rotate 90° and 180°. Same instant, watermark-free workflow.
Open the flipper →Compress Image
Shrink JPG, PNG and WebP files with a quality slider and live size readout — transparency aware.
Open the compressor →Grayscale Image
Convert to natural 256-shade grayscale — the photographic alternative to hard black and white.
Open the grayscale converter →Edit PNG Colors
Replace colors, remove color from a PNG, recolor with the bucket or invert.
Open the color editor →PNG Color Changer
Change the color of a PNG in one click — pick a shade, swap it everywhere.
Open the color changer →Rotate Image
Turn a photo 90°, 180° or any custom angle — the canvas expands so nothing is cropped.
Open the rotator →Black & White Converter
Convert any photo to black and white with natural luminance shades — transparency preserved.
Open the B&W converter →Negative Image Maker
Turn any photo into a film-style negative — or restore a scanned negative back into a photo.
Open the negative maker →Film Negative to Positive
Turn scanned film negatives into viewable photos — orange mask handled, full resolution kept.
Open the film converter →Compress PNG to 100KB
Shrink big PNG files toward a 100 KB target in your browser.
Open the PNG compressor →