QR Studio Pro

QR Code Use

Plain Text / URL

Content to encode

Network name (SSID) Password

Security

Hidden network

Full name

Organization (optional)

Job title (optional)

Phone (optional)

Email (optional)

Website (optional) Address (optional)

Payment method

PayPal.Me username Amount (optional)

Check the destination before you fabricate. Payments sent to a wrong wallet address, IBAN, or UPI ID generally cannot be reversed or recovered. Once a code is engraved or printed you cannot correct it — scan your exported code with the app you expect customers to use and confirm the destination and amount are exactly right before committing it to material.

Action

Phone number (international format)

Pre-filled message (optional)

Account label Issuer (service name) Secret key (Base32)

Digits

Period (sec)

This code is the secret itself. Anyone who scans it can generate valid login codes for the account — it is equivalent to handing over the second factor. Store engraved or printed copies somewhere physically secure, don't photograph them, and don't display them anywhere they could be seen or captured.

Event title

Starts

Ends

Location (optional) Description (optional)

Latitude

Longitude

Link format

Coordinates in decimal degrees. Positive = North/East, negative = South/West.

0 characters encoded

Encoding

What do these settings do?

Error correction builds spare copies of the data into the pattern, like a puzzle that can be solved even with pieces missing. If part of the code gets scratched, dirty, or covered by a logo, the phone can still read it. Higher levels survive more damage but make the pattern denser (more, smaller squares). H is the safe default for anything engraved or printed on a physical object.

Quiet zone is the empty margin around the code. Scanners need this blank border to tell where the code starts and ends — without it, nearby text, edges, or texture can stop the code from being recognized. 4 is the standard; only reduce it if space is truly tight, and test before production.

Rule of thumb: leave both settings on their defaults unless the code won't fit or won't scan — they're the reliability knobs, not the appearance knobs.

Error correction

Quiet zone (modules)

High error correction is recommended for engraving and UV print — it tolerates surface wear, dust, and a center logo cutout.

Module Style

Module shape

Square gives the cleanest cut path and the most reliable scan — the safest default for engraving.

Scan reliability

Not tested yet — runs your exact design through a QR decoder many times.

Finder pattern (corner eyes)

Outer frame

Inner pupil

The three corner squares are what a scanner uses to locate the code. Styling them is safe within these presets, but keep good contrast — heavy restyling is the most common cause of an unreadable custom code.

Gradient fill. Blends the foreground between two colors across the code. Great for print and web. Invert (negative mark). Marks the field around the code instead of the modules — useful for engraving a raised/untouched code on a cut background.

Physical Size

Output size (mm, square)

Appearance

Foreground (mark color)

Background

Center Canvas

Reserve a blank canvas in the center. Clears data modules under the area while keeping the finder patterns and outer structure intact, so the code still scans with artwork embedded.

UV Print Output

Raster resolution Include white underprint layer. A separate mask PNG matching the mark (and logo area) — used as the white ink base beneath color on dark or clear substrates.

Component Styling

Style individual QR components. A QR code is built from distinct parts. Colour each one separately, and choose the mask pattern that shapes the data field's texture.

What are the parts of a QR code?

Finder patterns — the three big corner squares. Scanners find and orient the code by them. Alignment patterns — smaller squares that correct for perspective when the code is scanned at an angle or on a curve. Timing patterns — the alternating row and column that tell the decoder where module boundaries fall. Format & version info — encodes the error-correction level and mask so the decoder knows how to read everything else. Data modules — the payload plus its error-correction, the bulk of the code.

Why colour and not shape: recolouring any component is safe as long as it stays dark against a light background. Reshaping timing and format modules is not — a decoder needs their exact geometry before error correction is even available, so those aren't offered as shapes.

Mask pattern

All eight masks encode identical content and scan equally well — they only change the visual texture of the data field. Auto picks the one the standard scores best.

Component colours

Finder patterns

Alignment patterns

Timing patterns

Format & version

Data modules

Component colours override the single foreground colour and any gradient. Keep every component clearly darker than the background — contrast, not hue, is what scanners measure.

Write to NFC Tag

How does this work?

Same data, different carrier. This writes the content you configured above onto a blank NFC tag, so tapping a phone against the tag does what scanning the QR code would. Handy for pairing an engraved plaque or UV-printed panel with a tag hidden behind or beneath it.

Use NTAG213/215/216 tags — common and widely compatible. Check your content fits: NTAG213 holds roughly 130 bytes, NTAG215 about 500, NTAG216 about 850.

Note: writing NFC tags from a browser only works in Chrome, Edge, Opera and Samsung Internet on Android, with NFC turned on. Apple does not allow web apps to access NFC on iPhone or iPad in any browser, and desktop browsers/computers don't expose it either — this is a platform restriction, not something this app can add.

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Make tag permanently read-only after writing. Locks the tag so its content can never be changed again. Leave this off until you've tested the tag.

Export

Preview

Type

Plain Text

Symbol

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Quiet Zone

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EC Level

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Physical Size

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Module Pitch

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PNG Output

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Logo Area

Off

Scan Check

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About exports & Scan Check

Engraving: SVG paths are crisp, unantialiased shapes in true mm units — import into LightBurn, Illustrator, CorelDRAW, or CNC/laser CAM software at exact scale.
UV Printing: PNG is rasterized with an integer pixel-per-module ratio at your chosen DPI, avoiding soft edges that cause registration errors on UV flatbed printers.
Scan Check: re-decodes the generated code (including any logo cutout) after every change so you can confirm it still reads before you export.

Scan Check verifies the digital pattern only. It confirms the code decodes as an image — it cannot predict how the finished piece will behave. Engraving kerf, ink spread, low contrast between mark and material, surface curvature, and glare on polished or anodised metal can all stop a technically valid code from scanning. Always scan a physical test piece with a normal phone camera before a production run.

QR Studio Pro help

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