About ToolBox.fyi

Free, fast, privacy-first utilities for everyday file and text tasks — built by a single developer who got tired of uploading files to random websites.

Why I built this

Every time I needed to resize an image, compress a PDF, or generate a QR code, I'd end up on some sketchy site that wanted me to create an account, showed me five ads, and — if I read the fine print — kept a copy of my file. I built ToolBox.fyi to fix that.

All 12 tools are free with no login required. Files are processed in memory and discarded the moment your result is returned. There are no accounts to create, no files to manage, and nothing stored on a server.

Core principles

Privacy by default

Files are never written to disk, logged, or retained. In-memory only, always.

Fast and lightweight

Client-side tools run entirely in your browser. Server tools are processed and returned instantly.

No account required

Every tool works without signing up. An optional Pro plan unlocks higher limits for power users.

Transparent

One developer. Clear privacy policy. No hidden tracking beyond standard analytics.

Who runs this

ToolBox.fyi is a solo project, built and maintained by a single developer based in Australia. There's no team, no VC funding, and no growth-at-all-costs mindset. Just a useful tool that pays its own hosting bills.

The site is kept sustainable through Google AdSense advertising (shown to free users) and an optional Pro plan for people who need higher file size limits or batch processing. Paying for Pro is entirely optional — the core tools are free and will stay free.

Tech stack

The frontend is built with Next.js 14 and deployed on Vercel. Server-side tools (PDF compression, image background removal, Word to PDF) run on a Python/FastAPI backend hosted on Railway. Files never touch a database — they go in, get transformed, come back out.

Get in touch

Found a bug? Want to suggest a tool? Have a question about your data? Use the contact page — I read every message.