OctalOne

100% Private & Offline-Ready

Your files are processed entirely on your device. Nothing is uploaded — works offline too!

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Image Cropper

Crop images online with pixel precision, custom aspect ratios, social media presets, circular masks, zoom & rotation. 100% private & client-side.

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100% Client-Side PrivacyPNG, JPG, WebP, SVG, BMP, GIFSocial Media Presets & Circular Masks

Online Image Cropper & Aspect Ratio Tool

Frame, crop, and transform your photos and graphics instantly in your web browser. Built for creators, designers, and developers who need fast, accurate image framing without installing bulky software or compromising privacy.

  • 100% Client-Side Privacy: All cropping and transformations happen in your browser via HTML5 Canvas. Your photos never leave your device.
  • Fixed Aspect Ratios & Freeform: Frame compositions with 1:1, 4:5, 16:9, 9:16, 4:3, 3:2, 2:1, and 3:1 aspect ratio locks, or drag freely.
  • Social Media Ready: Instant presets for Instagram Posts/Stories, YouTube Thumbnails, TikTok Videos, Twitter Headers, and LinkedIn Banners.
  • Circular Avatar Mask: Inscribe a circular crop for profile pictures and avatars with transparent PNG/WebP exports.
  • Transforms & High-Res Export: Rotate 90°, flip horizontally or vertically, zoom up to 300%, and export directly to PNG, JPEG, or WebP.

How to Crop an Image Online

Crop and export your image in four simple steps:

  1. Upload: Drag & drop any PNG, JPG, WebP, GIF, BMP, or SVG image into the dropzone.
  2. Frame: Select an aspect ratio preset or drag the 8 bounding handles to adjust your crop window.
  3. Fine-Tune: Optionally rotate, flip, enable circular crop, or adjust exact pixel offsets in the toolbar.
  4. Save & Download: Choose your desired output format (PNG, JPEG, WebP) and click "Crop & Save Image" to download instantly.

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Frequently Asked Questions

No! All image rendering, aspect ratio calculations, transformation, and cropping execute 100% locally in your web browser using HTML5 Canvas. Your photos never leave your device.

Yes, once loaded, this tool works completely offline. You can disconnect your internet connection and crop, rotate, flip, and download your images without interruption.

The tool supports Freeform (custom) cropping, standard photography and video ratios (1:1 Square, 4:5 Portrait, 16:9 Widescreen, 9:16 Story/Reel, 4:3, 3:2, 2:1, 3:1), and 1-click social media presets for Instagram, YouTube, TikTok, Twitter, and LinkedIn.

When you toggle Circular Crop on, the tool cuts out an exact circle mask inscribed within your crop box. For PNG and WebP exports, the outer perimeter remains completely transparent. For JPEG exports, the background fills with crisp white.

Yes! You can rotate your image 90° clockwise or counter-clockwise and flip it horizontally or vertically. The crop canvas dynamically adjusts its bounds and preserves high-resolution fidelity.

You can download your cropped image in its Original Format or convert it directly to PNG (lossless with alpha support), JPEG (with custom quality 10%–100%), or WebP (modern lightweight compression).

No. The cropper operates on the full natural pixel resolution of your source image. When exporting as PNG or high-quality JPEG/WebP, the cropped portion retains maximum pixel-for-pixel clarity.