Introducing ToolBox Image v1.0
The Compressor is live. Here is what we are building next and why.
Today we are launching ToolBox Image v1.0 with our first tool: the Image Compressor. It is the result of months of work on an architecture that we believe is the right way to build privacy-first web applications.
What we built
The compressor handles JPEG, PNG, WebP, AVIF, GIF, SVG, and HEIC images. It runs entirely in the browser using WebAssembly — no server processing, no uploads, no data transfer. Users can compress up to 200 images at once, with parallel encoding across all CPU cores. Each compressed image gets a side-by-side comparison slider so quality can be verified before download.
Key features:
- Lossy and lossless compression for all major formats
- Target-size mode that hits exact file sizes automatically
- Format conversion between any supported format
- Metadata stripping for privacy
- Batch processing with preserved folder structure
- ZIP export for bulk downloads
Why start here
Image compression is the most universally needed image tool. Every photographer, designer, developer, and social media user needs to compress images at some point. It is also a category dominated by tools that upload files to servers — a model that is fundamentally incompatible with privacy. Building a better compressor that respects user privacy felt like the right place to start.
What we are building next
The compressor is the first of many tools. Here is what is coming:
- Image Resizer — resize to exact dimensions or aspect ratios with intelligent cropping
- Crop Tool — preset ratios and freeform selection with guides
- Format Converter — batch conversion between any supported format
- HEIC Converter — convert Apple's HEIC photos to JPEG or PNG
- Metadata Viewer — inspect and strip EXIF data
- Rotate and Flip — basic geometric transforms
All tools will follow the same architecture: browser-first, private by default, free and unlimited.
Our commitments
ToolBox Image will always be free. The browser-first architecture means our operating costs are minimal — we do not pay for server processing, storage, or bandwidth for image uploads. There is no premium tier, no file size limit, no daily cap, and no sign-up required.
Your files stay on your device. We do not collect, store, or analyse your images. We do not use third-party analytics or tracking cookies. The only code that touches your images is the code running in your browser.
The compressor is live now. Try it, share it, and let us know what you think.