|
Home/Text to QR Code
QR

Text to QR Code

Online QR code generator: create scannable QR codes from text/URLs (and more), customize size/colors/error correction, then download PNG or copy the image. Runs locally in your browser (Client-side) with no uploads

Local generation only, no data uploaded

Please enter text to generate QR code

256px

Range 128–512, recommended 256

Higher error correction level means stronger fault tolerance, denser QR code dots; default M recommended, Q/H for printing or occlusion scenarios.

Description:

  • All generation and download are done locally in the browser, no data will be uploaded.
  • You can adjust size, foreground/background color and error correction level to adapt to different scenarios.
  • If copying fails, try manual save or use the download button.

QR Code Generator (Online) – Detailed Guide

What you will get (overview)

  • Generate scannable QR codes fast: from text, URLs, tracking links, and more.
  • Understand key knobs: size, colors, and error correction levels that affect scan reliability.
  • Practical production tips: sizing for screens vs print materials.
  • Privacy boundary: generated client-side; avoid encoding sensitive tokens or one-time codes into shareable QR codes.

Typical use cases (engineering-oriented)

  • Marketing & attribution: create QR codes for landing pages with UTM parameters.
  • Device/network setup: generate Wi‑Fi QR codes for easy onboarding.
  • Internal access shortcuts: share dev/staging entry points (ensure access controls).
  • Events & operations: share forms, sign-ups, and group invites.

Quick glossary

  • [QR Code] A two-dimensional matrix barcode.
  • [Error correction] L/M/Q/H levels; higher means more tolerance but denser patterns.
  • [Module] The small square unit in a QR code.
  • [Quiet zone] The required blank margin around a QR code; too small reduces scan success.

Best practices

  • High contrast wins: dark foreground + light background.
  • Keep quiet zone: don’t crop the code too tightly for print.
  • Shorter content scans better: consider short links for very long URLs.
  • Choose correction wisely: M for most cases; Q/H for print or partial occlusion.
  • Don’t encode secrets: tokens/passwords/OTPs should not be put into QR codes.

Related tools

Boundary & redaction note

QR content is easy to screenshot, forward, and archive. Do not encode passwords, one-time codes, long-lived tokens, or sensitive internal entry points. If you must use credentials, make them short-lived and revocable.

This online QR code generator creates a QR code from text or URLs and lets you download a PNG or copy the QR image. It’s beginner-friendly and ideal for sharing links, marketing campaigns, and print materials.

1. What can this QR code generator do?

1.1 Generate a QR code from text or a URL

  • What it does: turns your input into a scannable QR code.
  • Common inputs:
    • URL: https://example.com
    • Plain text: Welcome to our event
    • Tracking link: https://example.com/?utm_source=wechat&utm_campaign=sale

1.2 Customize size (128px ~ 512px)

  • What it does: changes the QR image resolution.
  • Recommendation:
    • Screen usage: 256px
    • Printing: use larger sizes (e.g. 320px, 384px, 512px)

1.3 Customize foreground and background colors

  • Foreground: the “blocks” color
  • Background: the canvas color
  • Best practice: use dark foreground + light background for reliable scanning.

1.4 Choose error correction level (L / M / Q / H)

Error correction helps scanning even if the QR code is partially damaged or covered.

  • L (~7%): simplest pattern, good for short content and clean environments
  • M (~15%): recommended default for most cases
  • Q (~25%): better for printing and slight occlusion
  • H (~30%): strongest correction, but produces denser patterns

1.5 Download PNG

  • What it does: downloads the current QR code as a PNG file.

1.6 Copy image

  • What it does: copies the QR code image to clipboard so you can paste it into chat apps, documents, or emails.
  • Note: some browsers may not support image copy or may require permissions.

1.7 Local-only generation (privacy)

QR generation runs in your browser. Your content is not uploaded.

2. How does a QR code work? (Simple principle)

A QR code is a two-dimensional encoding:

  • your text is encoded into data
  • the data is rendered into a grid of modules
  • scanners decode the pattern back into the original text

Higher error correction allows more damage/occlusion, but makes the QR code more complex.

3. Step-by-step tutorial (beginner-friendly)

Step 1: Enter your content

Type or paste content into Input text, for example:

https://example.com

Step 2: Click “Generate QR Code”

You will see a QR preview.

Step 3: Adjust settings (optional)

  • Size: start with 256px
  • Colors: keep high contrast
  • Error correction:
    • M for normal use
    • Q/H for printing or possible occlusion

Step 4: Save or share

  • Click Download PNG
  • Or click Copy Image to paste directly elsewhere

4. Feature & button explanation

4.1 Generate QR Code

  • What it does: renders a QR code using the current input and settings.
  • When to use: after editing the text or changing settings.

4.2 Clear

  • What it does: clears the input and resets the preview.
  • When to use: before generating a new QR code.

4.3 Download PNG

  • What it does: downloads the QR image.
  • Best for: print materials, sharing as an image file.

4.4 Copy Image

  • What it does: copies the QR image to clipboard.
  • Best for: quickly pasting into messages or docs.

4.5 Size slider

  • What it does: changes pixel size.
  • Tip: larger size improves print reliability.

4.6 Color pickers

  • What they do: set foreground/background.
  • Tip: avoid low contrast.

4.7 Error correction level selector

  • What it does: changes how tolerant the QR code is to damage.
  • Tip: M default; Q/H for print.

5. Common scenarios

5.1 Share a link

Generate a QR from a URL so users can open it instantly.

5.2 Print materials (posters, business cards)

Recommended setup:

  • larger size (≥ 320px)
  • Q or H error correction
  • high-contrast colors (often black & white)

5.3 Marketing tracking (UTM links)

Generate QR codes from UTM-tagged URLs to track traffic sources.

6. FAQ

6.1 QR generation failed / no preview

  • Make sure input is not empty.
  • Shorten long content.
  • Increase the size.

6.2 The QR code won’t scan

Try in this order:

  • increase size (e.g. 256 → 384)
  • increase error correction (M → Q/H)
  • switch to high-contrast colors
  • avoid busy/very dark backgrounds

6.3 “Copy Image” doesn’t work

  • Your browser may not support image clipboard.
  • Permissions may be blocked.
  • Use Download PNG instead.

7. Privacy & security

  • Generated locally in your browser.
  • Avoid sharing QR codes that contain sensitive tokens, private URLs, or Wi‑Fi passwords in untrusted places.

Summary: This online QR code generator lets beginners create QR codes from text/URLs, customize size/colors/error correction, and download or copy the image — all locally for privacy.