100% Client-Side

QR Studio

The most powerful free QR code generator — no sign-up, no server, no catch.

Your data never leaves your device

Every QR code is generated entirely inside your browser. No data is transmitted to any server — not your URLs, not your WiFi passwords, not your contact info. There is no backend. There are no logs. There is nothing to breach.

What is QR Studio?

QR Studio is a fully client-side QR code generator built to give you full creative control without paywalls. It runs 100% in your browser using only open-source libraries. There is no account, no subscription, no watermark, and no usage limit. Refresh the page — your settings survive, stored locally on your own machine.

What you can do

12 content types URL, plain text, email, phone, SMS, WiFi, vCard, calendar event, Twitter, geo-location, Bitcoin, and TOTP 2FA seeds.

QR Art Mode Blend any image behind your QR code with a precision overlay. The scanner-critical patterns are preserved automatically.

Batch Generator Generate hundreds of QR codes from a CSV list in one click and download them as a ZIP — all processed locally.

Live scan verifier Every QR you generate is decoded in real time using jsQR, with a pass/fail badge and the decoded value shown instantly.

Undo / Redo Full 60-step history covering every style and content change. Works with Ctrl+Z / ⌘+Z.

Logo brand palette Upload a logo and QR Studio extracts its dominant colours — apply them to your QR with one click.

Print size advisor Instant guidance on the minimum physical print size to stay scannable, based on the ISO 18004 standard.

Persistent settings Your last QR style, colours, and content type are saved in browser storage. Reopen and pick up exactly where you left off.

Why we built it

Most QR generators monetise through hidden limits, watermarks, expiry links that stop working, or surveillance of what you generate. QR Studio was built on a different premise: give designers, developers, and anyone else a tool that is actually good — and then get out of the way. No account required. No expiry. No nag screens. If a QR code you generate today still needs to work in ten years, it will — because the URL you encoded is baked into the pattern, not hosted on our servers.

Open-source tech inside

qrcode-generator jsQR JSZip Tailwind CSS Manrope Space Grotesk

QR Studio itself has no server component and no proprietary dependencies. The full source runs in your browser from a single folder.

Content Type

Website URL

Plain Text

Email Address Subject Body

Phone Number

Phone Number Message

WhatsApp Number

Include country code, no spaces or dashes (e.g. +14155550100)

Pre-filled Message (optional)

Link to profile or pre-fill a tweet?

Username

Link to Channel / Video ID

Facebook Page or Profile

Enter a username/page name or paste a full facebook.com URL.

Instagram Username

Link to Profile / Company slug

TikTok Username

Network Name (SSID) Password Encryption Hidden network

First Name

Last Name

Organisation Title / Role Phone Email Website Address Note

Full Name Phone Email URL

Latitude

Longitude

Event Title

Start

End

Location Description

Currency Wallet Address Amount (optional) Message / Label (optional)

Error Correction

Higher correction = more resilient but denser code. Use H when adding a logo.

Render Quality

Preview Resolution Anti-alias / image smoothing

Smoothing softens scaled edges. Turn off for crisp pixel-perfect modules.

Enter content to generate a QR code

Module Style

Finder Pattern

Colours

Foreground

#000000

Background

#ffffff

Finder Override optional

Custom finder colours

Logo / Image

Add logo to centre

Quiet Zone (Margin)

4 modules

QR Art Mode

Blend QR into a background image

Saved Presets

Batch Generator

One value per line. Current style settings apply to all.