Resize Image Online — Free, Instant & Private

Yes, completely free with no limits whatsoever. There is no sign-up required, no watermarks stamped on your images, and no hidden subscription fees. You can resize, compress, and convert as many images as you want — hundreds per day if needed — at absolutely no cost. The tool runs entirely in your browser, so it costs us almost nothing to serve, and ads on the site cover what it does cost — which is why it can stay free for everyone, with no limits and nothing paywalled.

No. All processing happens 100% in your browser using client-side JavaScript and the HTML5 Canvas API. Your images never leave your device — they are never uploaded, stored, or seen by anyone else. This makes our tool safe for sensitive documents like passport photos, identity cards, and personal photographs. You can verify this yourself by checking your browser's Network tab during processing.

Upload your image, then check the "Compress to target file size" checkbox. Enter your desired limit in kilobytes — for example, 50 for a 50KB target. Click Resize and our tool automatically adjusts the JPEG quality using a binary search algorithm to produce a file at or just below your target size while preserving maximum visual quality. Common targets include 20KB, 50KB, 100KB, and 200KB for various form submissions.

For upload, we support JPG/JPEG, PNG, WebP, HEIC and HEIF (iPhone photos), BMP, TIFF, GIF, AVIF, and SVG. For download, you can choose between JPEG, PNG, WebP, BMP, TIFF, or PDF output formats. This means you can also use the tool as a format converter — for example, converting iPhone HEIC photos to JPG, or creating PDFs from any image format for document submission.

Yes! Select multiple images at once using the file picker or by dragging a batch of files onto the drop zone. All selected images will be processed with the same settings — dimensions, target KB, and output format. Once processing completes, you can download each image individually or grab the entire batch as a single ZIP file. There is no limit on how many images you can process in one session.

Yes, our tool works on any device with a modern browser — iPhone (Safari), Android (Chrome), tablets, laptops, and desktops. No app download or installation required. On iPhone, it handles HEIC photos directly without needing a separate conversion step. The interface is fully responsive and optimized for touch screens, so the experience is smooth on smaller mobile displays.

Reducing dimensions while keeping the same format preserves quality extremely well — you are simply discarding excess pixels. When compressing to a target KB, our binary search algorithm finds the highest possible JPEG quality level that still meets your size limit. The result is virtually indistinguishable from the original for most use cases. For lossless quality, choose PNG or TIFF as the output format.

It depends on the application, not just the country — most governments publish a different specification for each form. US visa and DV lottery photos are square, 600×600 px minimum up to 1200×1200 px, and 240 KB or less in JPEG. India's Passport Seva asks for 630×810 px at 10–250 KB. 413×531 px is the digital equivalent of a 35×45 mm print at 300 DPI, the size used across the UK and the Schengen area — though for a UK online application HM Passport Office states its own minimum of 600×750 px, rejects files under 50 KB, and asks for a photo unaltered by computer software. Background color and head-size rules vary too, and they contradict each other: the US requires white while France forbids it. See our photo requirements by country pages for the figures per form.

Yes — that's our one-stop solution. Set your target dimensions AND enable "Compress to target file size" at the same time. The tool resizes first, then compresses to hit your KB limit — both in a single click. No need for two separate tools.

Pixels (px), inches, centimeters (cm), millimeters (mm), and percentage (%). Switch between units instantly using the unit selector above the dimension fields. For physical units (inches/cm/mm), you can also set the DPI for print-ready output.

Three things: First, your images never leave your device — most competitors upload to their servers. Second, we combine resize + compress + convert in one tool — no juggling three different sites. Third, everything is truly free with no limits — no 3-file caps, no watermarks, no forced sign-ups; ads keep it that way instead of a subscription.