Technology behind browser-based tools
ApexToolz runs on modern web platform APIs — not a black-box cloud converter farm. This page explains the architecture so security reviewers, developers, and curious users know what happens when they drop a file on a tool page.
No Login·100% Free·No Upload·Local Files·Browser-Based
Start instantly with no account or payment. Your files never leave your device — every tool runs locally in your browser with no file upload required.
No Login Required
Use instantly, no account
100% Free
No payment required
No Upload
Zero server transfers
Files Stay on Your Device
Never uploaded to our servers
Browser-Based Processing
100% local in your tab
Next.js App Router
Server-rendered pages for SEO and fast first paint. Tool workspaces load client-side only where interactivity requires it.
WebAssembly & Canvas
Image and PDF codecs compile to WebAssembly for near-native speed. Raster work uses Canvas and OffscreenCanvas APIs.
Client-side file processing
File-based tools read inputs via the File API and write downloads as blobs — no server upload pipeline for conversions.
What stays on your device
Image converters, compressors, PDF merge/compress utilities, JSON formatters, password generators, and similar file tools process inputs in your browser tab. We do not operate a server-side queue that stores your documents for conversion.
Network requests you may see include loading JavaScript/WASM assets, advertising tags described in our Privacy Policy, and optional contact form submissions. File bytes from tool workflows are not among them.
Read How Browser-Based File Processing Works for a deeper walkthrough.
Hosting and deployment
The site is deployed on standard Node.js hosting suitable for cPanel environments — no vendor-locked edge features required. Static assets and pages are built with Next.js; tool processors ship as part of the client bundle.
Related: How We Test Our Tools, Editorial Policy, About