BrowserTools

About BrowserTools

Hi, I'm Guga — a developer based in Tbilisi, Georgia, who got tired of the same routine: need one quick conversion, google a tool, land on a page demanding an upload to somebody's server, an account, or a “free” plan with a daily quota. BrowserTools is my answer to that: a curated collection of 186+ fast, free utilities that do their work on your device instead of on someone else's computer. I built the tools I kept needing myself — file converters, password generators, PDF utilities, text formatters — and published them so nobody has to surrender personal files or register an account for a 10-second job ever again.

Client-Side Architecture: 100% On-Device

Unlike traditional web tools that upload your files to remote cloud servers to process them, BrowserTools is engineered entirely around client-side execution. We harness modern web technologies:

  • WebAssembly (WASM): For heavy computational tasks like audio/video extraction (FFmpeg) and client-side AI background segmentation (ONNX Runtime).
  • Web Crypto API: For cryptographically random password generation, hashing (SHA-256, MD5), and zero-knowledge k-anonymity checks.
  • HTML5 Canvas & Web Workers: For non-blocking image resizing, format conversions (PNG, WebP, JPG), and document manipulation.

Because the entire site is distributed as static pages via high-speed global edge networks, your files never leave your browser. The site does not possess an upload backend or database.

Free Forever & Ad Policy

Every single utility on BrowserTools is completely free. We do not implement paywalls, usage caps, daily quotas, or intrusive watermarks. To keep the project sustainable and cover global CDN hosting and domain costs, we display non-intrusive advertisements served through Google AdSense. Ads will never interfere with the usability of a tool or compromise your privacy.

How the Tools Are Built & Tested

New and updated tools go through an automated test suite covering feature behaviour (encoding round-trips, conversion accuracy, generator entropy) and adversarial edge cases (malformed input, huge files, hostile strings). Conversions use reference implementations of the relevant standards — RFC 4122 for UUIDs, RFC 3986 for URL encoding, the standard EMI formula for loans — so results match what dedicated desktop software produces. When a calculation has real-world consequences, the page says so plainly and tells you to verify with a qualified professional.

Editorial standards are simple: descriptions describe what the tool actually does (no inflated claims), disclaimers appear on any calculator with financial or health implications, and every page states exactly what runs on your device and what — in the rare case of network-enabled tools — leaves it.

Contact & Support

BrowserTools is a one-person independent project, and I read everything that comes in — bug reports, broken-edge cases, and tool suggestions most of all. If something misbehaves, tell me your browser version and what you fed it; if a tool you need doesn't exist yet, ask and I'll look into building it. Visit the Contact page or write directly to contact@browsertools.online.

— Guga