About ImageLab

ImageLab is a free, browser-based toolkit for common image tasks. It was built for anyone who needs to quickly convert, compress, resize, crop, or clean up images without uploading files to a third-party server.

Who maintains ImageLab

ImageLab is operated by Westnode LLC. The same team maintains the tools, publishes the guides, and handles support and policy questions for the site.

Why we built it

Most online image tools require you to upload your files to their servers. That means your images — including potentially sensitive screenshots, internal documents, and personal photos — are transmitted to and stored on someone else's infrastructure. You are trusting their privacy policy, their security practices, and their intentions.

We built ImageLab on a different premise: the browser is already a capable computing environment. Modern browsers expose APIs like Canvas, Web Workers, and OffscreenCanvas that are powerful enough to process images at high speed, entirely locally. There is no technical reason to send images to a server for common operations like format conversion, compression, resizing, or metadata removal.

ImageLab puts that capability in one place, with a straightforward interface designed for practical, everyday use.

How the processing works

Every tool in ImageLab runs entirely in your browser using standard Web APIs:

  • Canvas API: The core of all image operations. Images are drawn to a canvas element and exported in the target format and quality. The Canvas API is supported in every modern browser and provides native, hardware-accelerated image processing.
  • Web Workers: Long-running operations run in background threads (Web Workers) so the page UI remains responsive while images are being processed. This is especially important for batch operations involving dozens of files.
  • OffscreenCanvas: Where available, processing is offloaded to an OffscreenCanvas instance running entirely in a Web Worker thread, enabling true parallel processing without touching the main thread.
  • WebAssembly (WASM): For formats like WebP that require more advanced encoding, we use WebAssembly modules compiled from the official Google libwebp library. This provides near-native encoding performance directly in the browser.
  • File API & Blob URLs: Input and output files are handled using the browser's native File API. Downloads are generated as Blob URLs pointing to in-memory data — no temporary files are written to disk or network storage.

The result is that your images are processed locally and the output files are available for download immediately — without any network round-trip, without any server-side storage, and without any data leaving your device.

What ImageLab can do

ImageLab provides eight tools, each focused on a specific image workflow:

Format Converter

Convert between PNG, JPG, and WebP. Adjust quality and set a background color for JPG outputs. Supports batch conversion with ZIP download.

Image Compressor

Reduce file size with a quality slider and a live side-by-side before/after preview. See exact file size savings before downloading.

Resize & Crop

Resize images to exact dimensions using a visual editor with draggable handles. Supports aspect ratio locking and preset dimensions for common platforms.

Metadata Stripper

Remove all EXIF metadata including GPS coordinates, camera details, and timestamps. Re-encodes images to ensure complete metadata removal.

Batch Processing

Apply any operation — convert, compress, strip metadata, or resize — to many files simultaneously using parallel Web Workers.

Favicon Generator

Generate all standard favicon and app icon sizes from a single PNG: 16, 32, 48, 180, 192, and 512 pixels.

Base64 Utilities

Encode images to Base64 data URLs for embedding in HTML and CSS, or decode Base64 strings back to downloadable image files.

SVG/PNG/ICO Converter

Convert SVG or PNG images to ICO format, convert PNG to SVG, or extract frames from ICO files as PNG or SVG.

Who uses ImageLab

Our users span a wide range of roles and use cases:

  • Web developers and designers who need to quickly convert assets, generate favicons, or produce WebP versions of images for performance optimization.
  • Content marketers and social media teams who resize and compress images before publishing to websites, blog posts, and social platforms.
  • E-commerce teams who process large product image catalogs in batch to meet platform size and format requirements.
  • Photographers and creatives who share photos publicly and need to strip GPS and device information before uploading.
  • Privacy-conscious individuals who want to remove sensitive metadata from photos before sending them or posting them online.
  • Developers building web apps who need Base64-encoded data URLs for embedding images in code, emails, or configuration files.

Privacy and data handling

ImageLab does not collect, transmit, or store any images you process. When you upload a file, it is read into browser memory using the File API and processed locally. The processed output is created as an in-memory Blob and offered for download through the browser's native download mechanism. At no point does the image data leave your device.

ImageLab uses Google Analytics (via Google Tag Manager) to collect anonymized usage statistics — things like which tools are most commonly used and what browsers people use. We do not attach any image data to analytics events.

We use Google AdSense to display advertisements. Advertising scripts run in the browser but have no access to your image files. Full details are available in our Privacy Policy.

Open source and free to use

All core ImageLab tools are free to use with no account required, no file size limits, and no watermarks on output files. We believe that basic image utilities should be freely available without requiring users to hand over their files to a server.

If you have questions, want to report a bug, or need to request a feature, use the Contact page.