Scale images down to exactly the size you need — pick a preset or type a custom longest edge in pixels. The format stays the same; nothing is uploaded.
The converter
Drop in one image or a whole batch. Everything is converted on your device — no upload, no wait.
How it works
Resize one image or a whole batch without sending anything to a server.
01
Pick a file or drag it straight in — drop in .jpg, .png or .webp files — the format is kept.
02
Choose a preset or type a custom longest edge — aspect ratio is always kept.
03
It saves straight to your device the moment it’s ready — no upload, no waiting.
Why resize
Learn
No quality slider can rescue an image that is simply too large. A 4000-pixel camera photo displayed in a 800-pixel article slot wastes 25× the pixels — and no browser scales it down for free. Resizing to the display size is the single biggest file-size win available, before any compression trick.
This tool caps the longest edge — pick a preset or type an exact pixel value — and the other edge follows automatically, so nothing is ever squashed or stretched.
Full-width hero images: 1600–1920px. Blog and article images: 1200px. Grid cards and previews: 800px. Avatars and thumbnails: 400px. E-mail attachments: 1200px keeps quality while cutting megabytes. When in doubt, measure the widest slot the image will occupy and add ~25% for high-density screens.
Scaling down discards pixels, which browsers do beautifully. Scaling up would have to invent pixels, which classical resampling does badly — you get soft, blurry results. That is why this tool never enlarges; a dedicated on-device upscaler is a separate roadmap item.
FAQ
Choose a preset (1920, 1600, 1200, 800) or type any custom value into the Custom field — it caps the longest edge and the short edge follows the aspect ratio.
No — resizing here only scales down. Upscaling requires inventing detail, which needs a different (AI-based) tool that is on our roadmap.
The format is kept. Lossy formats are re-encoded at quality 90 by default — adjust the slider if you want smaller files while you resize.
Full-width hero images: 1600–1920px. In-article images: 1200px. Thumbnails: 400–800px. Smaller dimensions are the single biggest page-weight win.
File size scales roughly with pixel count. Halving both dimensions cuts pixels by 75% — combined with re-encoding, a 6 MB photo often lands under 500 KB.
Exact-box resizing (fit/fill/crop) is on the roadmap. Longest-edge covers the common cases without ever distorting the image.
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