How much text can this QR code generator handle?

This tool supports QR versions 1 through 6, comfortably handling typical URLs, short messages, and structured data like WiFi credentials or contact details — roughly up to 100 characters of mixed-case text. Longer text will show a clear error rather than producing an invalid code.

Is my text sent to a server to generate the QR code?

No — the entire QR code, including the Reed-Solomon error correction and module layout, is calculated and rendered locally in your browser using JavaScript. Nothing you enter is ever transmitted anywhere.

What is error correction level M?

QR codes support four error correction levels (L, M, Q, H), trading off code capacity against damage tolerance. Level M (used here) allows roughly 15% of the code to be unreadable or damaged while still scanning correctly — a solid middle-ground balance for general use.

Can I put a logo in the middle of this QR code?

Not with this tool — adding a logo overlay requires additional design work and a higher error correction level to compensate for the obscured area. A dedicated QR Code with Logo tool handles that specific use case.

Will this QR code work when printed small?

Yes, as long as the printed size maintains enough resolution for a scanner to distinguish individual modules — a good rule of thumb is keeping each module at least 2-3mm when printed, which for most short-text codes means a minimum printed size of roughly 2x2cm.

Free Online QR Code Generator

Features

Runs entirely in your browser
Privacy-first — your data is never uploaded
Real-time, instant results
100% free, no sign-up required
Works on desktop, tablet, and mobile
No installation needed

Who uses this tool?

Small businessesEvent organizersMarketersRetailers

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About QR Code Generator

A QR code encodes text data into a scannable square pattern of black and white modules, readable instantly by any modern smartphone camera. This tool generates a real, standards-compliant QR code entirely in your browser — from a URL, a message, or any text — using a from-scratch implementation of the QR code specification (ISO/IEC 18004), including proper Reed-Solomon error correction.

Reed-Solomon error correction is what makes a QR code scannable even when partially damaged, dirty, or printed at an angle — a portion of the encoded data can be reconstructed mathematically even if some modules are misread. This tool builds that error correction into every generated code, at error correction level M (roughly 15% of the code can be damaged and still scan correctly).

The tool automatically selects the smallest QR version (module grid size) that fits your text, since a shorter message produces a smaller, simpler code that's easier and faster to scan, while a longer message requires a larger grid to hold the additional data plus its error correction.

This is useful for sharing a link without typing it out, adding a scannable code to a printed flyer or business card, or generating a code for any short message that's more convenient to scan than to type. Everything happens locally — the text you enter is never sent anywhere.

How it works

Enter your text or URL. Any message, link, or short text.
The QR code generates instantly. Built entirely in your browser with real error correction.
Download as PNG. Ready to print, embed, or share.

Examples

Encoding a URL

Input

https://toolspica.cloud

Output

A scannable QR code linking directly to that URL