generator

QR Code Generator

Generate QR codes from text or URLs locally in your browser. Choose size and error correction, then download PNG instantly.

Waiting

Enter content to generate a QR code preview.

19 / 2048 characters

Use higher error correction (Q/H) for logos or damaged printouts; lower levels (L/M) fit more data.

QR preview

Enter valid content to preview the QR code.

Error correction M · 256px PNG preview

QR codes are generated locally and are not uploaded. Encode URLs with the URL Encoder or inspect encoded payloads with the Base64 Encoder.

Error correction levels

QR codes store extra redundant data so scanners can still read the payload when part of the code is dirty, folded, or covered.

Levels

  • L (~7%): lowest redundancy, fits the most data.
  • M (~15%): good default for everyday URLs and text.
  • Q (~25%): better for small print or partial obstruction.
  • H (~30%): strongest tolerance—use for logos in the center or worn labels.

Quick rules

  • Short, clean display (screen or large print) → L or M.
  • Small print, stickers, or partial cover → Q or H.
  • Center logo or heavy wear → H.
  • Long text or Wi-Fi strings → prefer L or M.
  • If generation fails → shorten the text or lower the level.

QR Code Course

Learn how QR codes work: error correction, URL and Wi-Fi payloads, PNG output, and a pre-publish testing workflow.

Course home

About this tool

DevCove QR Code Generator creates scannable QR codes locally from plain text, URLs, or Wi-Fi connection strings. Pick output size and error correction level, preview the code as you type, and download a PNG for slides, printouts, stickers, or support docs. No uploads—generation happens entirely in your browser.

How to use this tool

Use this QR generator when you need a quick scannable code for a link, message, or Wi-Fi handoff:

  1. Paste a URL, text, or Wi-Fi string into the input area.
  2. Choose an output size that matches your print or screen use case.
  3. Pick an error correction level—higher is better for logos or partial damage.
  4. Adjust foreground and background colors for brand slides or printouts.
  5. Preview the code and scan it with your phone before sharing.
  6. Download PNG or copy the image to your clipboard for docs and chat.
  7. Load presets for a sample URL, plain text, or Wi-Fi string to explore quickly.

Features

Built for quick offline QR creation rather than batch campaign management:

  • Generate QR codes from text, URLs, or Wi-Fi strings locally.
  • Live PNG preview with adjustable size presets up to 768px.
  • Error correction levels L, M, Q, and H.
  • Custom foreground and background colors.
  • One-click PNG download and clipboard copy.
  • Content presets for common starting points.
  • Character limit guardrails for reliable browser-side generation.
  • 100% client-side generation—content is not uploaded.
  • Complements URL Encoder and Base64 tools for link and asset workflows.

FAQ

What can I encode in a QR code?

You can encode URLs, plain text, contact details, or structured strings such as Wi-Fi connection payloads. This tool focuses on text-based input rather than file uploads.

Which error correction level should I choose?

Use M for general links, Q or H when the code may be partially obscured or printed small, and L when you need to fit more data with less redundancy.

Is my content uploaded?

No. QR generation runs entirely in your browser.

Why did generation fail?

Very long input or an overly ambitious correction level can exceed what the browser encoder can render reliably. Shorten the text or try a lower correction level.

Can I use the PNG commercially?

Yes. The PNG you download is generated locally for your use. Always verify the encoded destination before publishing customer-facing materials.