Frequently Asked Questions

Common questions about Brevio — privacy, file handling, and how the tools work.

What is Brevio?

Brevio is a collection of 162 free, privacy-first browser tools for PDFs, images, text, developer utilities, AI/LLM tools, and more. All client-side tools run in your browser — no file uploads, no account required.

Do files ever leave my browser?

For client-side tools (the majority): no. Processing happens using browser APIs — the Canvas API for images, pdf-lib for PDFs, WebAssembly for OCR and tokenization, and the Web Crypto API for hashing. Your files are never transmitted to any server.

Do I need to create an account?

No. All tools are free and work without signup, login, or email.

Are there usage limits?

No server-side rate limiting. All client-side tools can be used as many times as you want.

Does Brevio work offline?

Yes — client-side tools work after the initial page load. Once the code is delivered to your browser, no network connection is needed.

Does Brevio use tracking or cookies?

Brevio uses Plausible Analytics (EU-hosted), which fires events only after explicit user consent. There are no third-party advertising cookies.

How is Brevio different from Smallpdf or iLovePDF?

Brevio processes PDF files in your browser using pdf-lib. Your files are never uploaded. Smallpdf and iLovePDF process files on their servers.

What technology does Brevio use?

Brevio is built on Next.js with React, deployed on Vercel. Client-side processing uses the Canvas API, pdf-lib, Tesseract.js (OCR via WebAssembly), Web Crypto API, and tiktoken (tokenizer via WASM).