I built a free, private QR code generator (and 30 other browser tools)

Description and use

A fully client‑side QR code generator that runs without sign‑ups, watermarks, or server uploads, plus 30+ free browser tools.

Problem

QR code generators often require sign‑ups, add watermarks, or upload data to servers, compromising privacy and usability.

Outcome

The project delivers a privacy‑preserving QR code generator that runs entirely in the browser, eliminating the need for sign‑ups, watermarks, or server uploads, and expands to a suite of 30+ free browser utilities.

Workflow

• 1. User enters data (URL, WiFi, vCard, etc.) in the web form.
• 2. The browser generates the QR code using JavaScript without any server communication.
• 3. User customizes logo, color, dot/corner/frame options.
• 4. User downloads the QR code as PNG, JPG, or SVG at high resolution.
• 5. Optional: Use additional tools on the same site (image compressor, PDF merger, etc.)

Evidence

Everything runs 100% client-side. Your text, links, contact details — none of it ever leaves the browser.

Source

High-resolution PNG, JPG, and SVG downloads — free, no watermark

Source