Resize an Image to Exact Dimensions
Passport photos, profile pictures, Instagram posts, print sizes — type the size and drag the frame. Resize in bulk if you like; nothing is uploaded.
Fit Meter
Settings appear once you add an image.
Advanced 7
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Every request this page makes is listed as it happens. You’ll see our own code loading, for some formats a codec engine, and anonymous usage analytics marked STATS — but never your file going out.
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Check it yourself: open your browser’s developer tools on the Network tab, or turn off Wi-Fi once the page has loaded. The tools keep working.
Works offline after you’ve used it once.
How to use it
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Add your files
Drop your photos. HEIC from iPhones works too.
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Check the settings
Type any width and height, in pixels, mm or inches. For a passport or visa photo, open its page under photo sizes, which fills in the exact size for you.
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Save the result
Drag the frame to choose what stays in, then download — exactly the size the form asks for.
Why it doesn’t upload
Passport and ID photos are exactly the kind of image you shouldn’t hand to a random website. Resizing here happens on your device, so your face and documents never touch anyone’s server.
How to check for yourselfWorth knowing
- Enlarging a small photo adds pixels, not detail — it will look softer. Official photo portals usually reject blurry images.
- Visa and passport portals also check the photo itself (background, head size, lighting). We get the file size and pixels right; the photo still has to meet their rules.
- “Crop to fill” uses the frame position you choose on the first image; other images in a batch are cropped from the center.
- Output is sRGB. Wide-color iPhone photos are converted, which is what portals expect.
Resize a photo for Instagram without cropping
Instagram crops anything taller than 3:4 or wider than 1.91:1, and it cuts from the middle. To keep the whole picture, fit it inside Instagram’s frame with a border instead: portrait 4:5 without cropping · 3:4 without cropping · square without cropping · story or Reel without cropping. The border is white; change Border / background color under Advanced for black or your own color.
The tall shapes — 4:5 (1080 × 1350 px) and the newer 3:4 (1080 × 1440 px) — take up the most room in the feed, so a landscape photo fitted into it gets a band above and below; a square post gives it a little less. Want it cropped instead, filling the frame? Set it for an Instagram portrait and drag the frame over the part to keep. To check a photo against any other size rule first, use the photo size checker.
Questions
How do I resize a photo to 35×45 mm for a passport?
Set it for a Schengen photo, which sets 413×531 pixels — that’s 35×45 mm at 300 dpi. Drag the frame so your head is centered, then download. You can also switch the unit to mm and type 35 and 45.
What’s the right size for a US visa (DS-160) photo?
A square JPEG between 600×600 and 1200×1200 pixels, no bigger than 240 KB. Set it for the US visa: 600×600, with the 240 KB limit turned on for you.
Will resizing reduce quality?
Making an image smaller keeps it sharp — we use high-quality downscaling. Making it bigger can’t invent detail, so enlarged photos look softer.
Can I resize without cropping anything off?
Yes. Leave the aspect ratio locked and the whole picture is scaled down with nothing cut — set the longest side and the other follows. Cropping only happens if you unlock it and set a shape that differs from your photo’s, and the frame preview shows exactly what would go before you save.
What size should an Instagram post be?
1080×1350 pixels (4:5) takes up the most room in the feed. 1080×1440 matches the new 3:4 profile grid, and Stories and Reels are 1080×1920. Type the one you want, or set it for the 4:5 portrait.
How do pixels relate to mm, cm and inches?
Physical sizes depend on DPI. At 300 dpi, 1 inch is 300 pixels and 1 mm is about 11.8 pixels. Change the DPI under Advanced settings if your printer asks for something else.
Read more about this
- Guide Why are iPhone photos so big?
- Guide Which image format belongs on your website?
- Guide DPI vs pixels: what a photo size really means
- Guide How to compress an image under 200 KB without losing quality
- Common fix Make a round profile picture
- Common fix Make a favicon for your site
- Common fix The form says your photo is too big
- Platform sizes YouTube thumbnail size
- Platform sizes Instagram post, Story and Reel sizes
Next steps
Often used before or after Resize Image. These run on your device too.
- Crop Image Crop to a square, a circle, a ratio or free-form with a drag.
- Compress Image Get a photo under any KB or MB limit without guessing at quality.
- Photo Size Checker KB, pixels, DPI and print size, checked against passport, visa and exam rules.
- Rotate & Flip Image Turn a sideways photo the right way up, or mirror it.
- Add a Watermark Stamp your name or logo across a picture before it goes out.
- Remove Image Background Make a white or plain backdrop transparent, in one image or a batch.