Select any viewport region with pixel-level accuracy. Export as WebP, PNG, or JPEG with full compression and dimension controls — entirely offline, with zero data leaving your machine.
From hotkey activation to local file save, every step happens on-device with zero network requests.
Press your custom hotkey or click the toolbar icon. The full-viewport crop overlay appears instantly.
Click and drag any region. Use corner grips for sub-pixel adjustments. Real-time coordinates update live.
Choose WebP, PNG, or JPEG. Set compression quality 1-100%. Override output dimensions with custom scaling.
Press Enter. The Canvas API renders your selection and the browser downloads the file directly to disk.
Every alternative forces cloud authentication, injects tracking beacons, or limits export options. PixelCrop processes pixels locally using the native Canvas API — no servers, no payloads, no surveillance.
Install ExtensionLive X/Y/W/H coordinate tracking with sub-pixel precision for exact crop boundaries.
Export WebP, PNG, or JPEG using the browser's built-in canvas encoder. Zero external libraries.
Zero network permissions in manifest. No analytics, no cloud syncs, no tracking pixels.
Canvas-based compositing completes in milliseconds. No spinners, no queues, no uploads.
See how different formats and quality levels affect your output file size before you capture. WebP delivers up to 95% size reduction compared to raw RGBA pixels, while PNG preserves absolute fidelity for design audits.
The interactive configurator mirrors the exact controls available inside the extension popup. Adjust format, quality, and dimensions to preview estimated output sizes — then capture with confidence.
Front-end developers, QA engineers, and security auditors rely on PixelCrop for daily screenshot workflows.
"We process 200+ screenshots daily for regression testing. Having a tool that exports WebP at 60% quality — cutting file sizes by 90% — without uploading a single byte to cloud infrastructure is exactly what our compliance team demanded."
"The dimension override feature is a game-changer. I lock captures to exactly 1200x630 for our OG images and 800x450 for slide decks. It rescales perfectly every time with no additional software."
"I reviewed the manifest.json thoroughly — zero host permissions, zero remote endpoints. Every pixel is processed via the local Canvas API. This is the only screenshot tool that passed our InfoSec audit for banking dashboards."
All core features are free with no limits. Support ongoing development with a one-time contribution.
Every feature, no restrictions, no registration. Use it on as many machines as you want.
Help fund continued development, hosting, and Chrome Web Store maintenance fees.
Everything you need to know about PixelCrop's offline capture workflow.
Built-in system screenshot utilities like Windows Snipping Tool and macOS Screenshot.app capture the entire screen buffer at the OS level, which means they include browser chrome, toolbars, and other UI elements. This custom screenshot chrome extension operates inside the browser viewport itself, giving you surgical control over the exact web content region you want. You get real-time coordinate tracking, per-pixel dimension handles, and the ability to choose output formats (WebP, PNG, JPEG) and compression quality levels before saving — none of which are available in OS-level tools.
A webp browser screenshot at 85% quality typically reduces file size by 60-80% compared to an equivalent PNG. WebP uses advanced prediction algorithms and entropy coding that outperform PNG's DEFLATE compression for photographic web content. However, PNG remains superior for pixel-perfect lossless captures where absolute color fidelity matters — such as design system audits, icon libraries, and charts with thin lines. Our extension lets you toggle between these formats in a single click, so you always get the optimal codec for each use case.
This offline screenshot tool enforces data safety at the architecture level. The Chrome extension manifest declares zero network-related permissions — no webRequest, no tabs URL access, no remote endpoints. All pixel compositing, format conversion, and file generation happens through the HTML5 Canvas API running inside your browser's sandboxed rendering process. The extension literally cannot make network requests even if an attacker modified it, because the Chrome permission model blocks all outbound communication. Your screenshots never leave your machine.
Yes, the dimension override system is one of the most powerful features when you crop webpage pixels. After drawing your selection region, you can specify exact output width and height values in the extension popup. The Canvas API will then rescale the captured content to fit your target dimensions while preserving the aspect ratio. This is invaluable for generating social media OG images (1200×630), thumbnail grids (400×300), or Retina-ready assets at 2× DPI — all without Photoshop or external resizing tools.
This safe screenshot extension was designed with regulated industries in mind. The entire codebase is open source on GitHub, meaning your security team can audit every line. The extension manifest requests only the minimum permissions needed for viewport capture — no cookies, no browsing history, no bookmarks, no network access. Multiple InfoSec teams at financial institutions have verified the extension passes SOC2 and HIPAA artifact requirements because it operates in a complete air-gapped mode with zero data exfiltration vectors.
Absolutely. The chrome extension manual crop workspace can be activated with any key combination you configure. Navigate to chrome://extensions/shortcuts in your browser, find the PixelCrop entry, and rebind the activation shortcut to any combination that fits your workflow — such as Alt+Shift+C or Ctrl+Shift+X. This customization ensures the cropping overlay doesn't conflict with your IDE, terminal, or other productivity tools.
For high resolution screen capture, the extension accounts for the device pixel ratio (DPR) of your display. On a 2× Retina screen, a 500×500 CSS-pixel selection actually captures 1000×1000 physical pixels, delivering crystal-clear output suitable for print, Retina web assets, or zoomed-in analysis. You can optionally downscale the output to standard DPI using the dimension override fields, giving you full control over the final resolution.
To compress webpage capture output effectively, set the format to WebP and adjust the quality slider to the 60-80% range. At quality 70%, a typical 1200×800 region compresses to just 40-80 KB — small enough for immediate web embedding without additional optimization passes. For documentation sites and blog posts where visual fidelity matters less than load speed, quality 50-60% delivers images under 30 KB with no perceptible degradation at standard viewing distances.