smpl. is a collection of 70+ browser-based tools for working with PDFs, images, text, and code. Every tool runs entirely client-side — no servers, no uploads, no accounts.

The design philosophy is radical simplicity. Each tool does one thing. The interface gets out of the way.

Built with vanilla JavaScript, Tailwind CSS, pdf-lib for PDF operations, and the Canvas API for image manipulation.

Performance is intentional. Files are processed using Web APIs: File API, Canvas 2D, WebCrypto, MediaRecorder. Nothing is sent anywhere.

Stack

• — Tailwind CSS (CDN, no build step)
• — pdf-lib v1.17.1 (PDF manipulation)
• — JSZip v3.10.1 (ZIP archive creation)
• — qrcodejs (QR code generation)
• — marked.js (Markdown parsing)
• — Google Fonts (Inter + JetBrains Mono)

Your files never leave your device. Ever.

All processing happens in your browser using JavaScript. No data is transmitted to any server. No analytics. No tracking. No cookies (except localStorage for dark mode preference).

What we store

• — smpl-dark: Your dark mode preference (localStorage)
• — Nothing else. Seriously.

Third-party resources

We load CSS/JS from Google Fonts CDN, jsDelivr, Cloudflare CDN, and unpkg. These services may log your IP address as part of their normal CDN operation. We have no control over their logging practices.

Browser permissions

Some tools request browser permissions: microphone (audio recorder), screen capture (screen recorder). These are only requested when you click the start button — never automatically.