Barcode Generator
All-in-one barcode generator — pick Code 128, EAN, UPC, Data Matrix, and more, then download PNG or SVG.
Create Your Barcode
Create Barcodes for Any Symbology
Open a dedicated generator for retail, logistics, or 2D marking with symbology-specific guidance.
- Code 128 Barcode Generator
- Code 39 Barcode Generator
- EAN-13 Barcode Generator
- EAN-8 Barcode Generator
- UPC-A Barcode Generator
- UPC-E Barcode Generator
- ITF-14 Barcode Generator
- Codabar Barcode Generator
- MSI Plessey Barcode Generator
- Data Matrix Barcode Generator
- PDF417 Barcode Generator
- Aztec Code Generator
- Barcode Scan
How to use the Barcode Generator
Create a scannable barcode in three steps.
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1
Choose a symbology
Pick Code 128, EAN-13, UPC-A, Data Matrix, or another format from the tools list. Each type enforces the rules that scanners and marketplaces expect.
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2
Enter your data
Type digits or alphanumeric payloads. Preview updates live so you can check check digits, width, and human-readable text before export.
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3
Download your barcode
Export PNG for proofs or SVG for thermal and packaging vendors. No signup required — generation runs in your browser.
Customize Your Barcode
Tune height, contrast, quiet zones, and human-readable text before you send files to print.
Set bar height
Match the vertical size to your label stock and scanner gun.
Taller bars help handheld scanners at awkward angles. Shorter bars fit compact shelf talkers when width already meets the X-dimension.
- Follow retailer or GS1 magnification tables when printing for POS.
- Do not shrink below the minimum bar height your gun vendor specifies.
- Keep consistent height across a SKU family so pickers scan reliably.
Choose bar and background colors
Keep strong contrast so laser and camera scanners decode cleanly.
Dark bars on a light background remain the safest combination. Preview contrast before you approve packaging ink.
- Avoid red bars under red POS lasers.
- Matte substrates scan better than gloss glare.
- Never place text through the bar pattern.
Show human-readable text
Print digits under the symbol for manual entry when a scan fails.
Toggle human-readable interpretation so operators can type the GTIN or Code 128 string if the gun cannot read a damaged label.
- Use a clear sans-serif font sized for arm’s-length reading.
- Keep HRI outside quiet zones.
- Match the printed digits to the encoded payload exactly.
Protect quiet zones
Leave clear margins so scanners find the start and stop of the symbol.
Quiet zones on both sides (or around 2D codes) are required by most symbology specs. Crowding artwork into the margin causes no-reads.
- Never crop SVG exports into the quiet zone.
- Watch shrink wrap and box seams that push into margins.
- Verify with a physical sample on the target substrate.
Respect check digits
Retail and some logistics codes reject wrong check digits at scan time.
Where the symbology requires a check digit, the generator follows the standard algorithm so POS and WMS systems accept the label.
- Do not invent retail GTINs — obtain prefixes from GS1 when selling through stores.
- Confirm MSI check-digit variants with your retailer firmware.
- Re-scan after any manual digit edits.
Balance density and print size
Longer payloads need wider symbols or taller 2D matrices.
Alphanumeric logistics strings and large PDF417 payloads increase symbol width. Shorten data or enlarge print size when scanners struggle.
- Test the smallest label size you plan to ship.
- Prefer Data Matrix or QR for tiny parts when linear codes will not fit.
- Keep X-dimension within printer dpi limits.
Download Barcode Formats
Pick the export type that matches labels, cartons, or QA proofs.
| Format | Best use for |
|---|---|
| PNG | Quick proofs, packing lists, and digital label drafts at the size you set. |
| SVG | Thermal printers, flexo vendors, and packaging artwork that need sharp bar edges. |
| JPG | Email attachments and documents where a smaller raster file is enough. |
| Print-ready one-page proofs for procurement, QA, or warehouse sign-off. |
Barcode use cases
Where teams deploy barcodes across retail shelves, cartons, and regulated parts.
How Barcodes Work
A quick look at what happens between your payload and a successful scan.
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1
Data becomes a pattern
Your digits or string are encoded into bar widths or a 2D matrix according to the symbology rules.
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2
Scanners find quiet zones
Clear margins help lasers and cameras locate the start of the symbol and lock onto the pattern.
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3
Check digits validate integrity
Where required, a calculated check digit rejects mistyped or damaged codes before they enter inventory.
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4
Systems act on the payload
POS, WMS, or healthcare systems look up the GTIN, SKU, or serial and continue the workflow.
Privacy / Security
What you can expect when generating barcodes on QRCodePlus.
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No signup
Open the generator and create barcodes without creating an account.
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Free
Core barcode tools run in the browser at no charge for standard downloads.
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No watermark
Exported PNG, SVG, JPG, and PDF files do not carry a platform watermark.
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Browser-based
Generation happens locally in your session — payloads are not rendered on our servers.
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No data stored
We do not save the digits or strings you enter into the generator for later retrieval.
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HTTPS secure
The site is served over HTTPS so your browsing session and downloads are encrypted in transit.
Why use barcodes?
Six reasons teams still rely on linear and 2D barcodes for retail, logistics, and inventory.
Universal POS and WMS support
Checkout scanners and warehouse guns already know EAN, UPC, and Code 128 — no consumer app required.
Standardized product identity
GTINs carried in EAN/UPC link shelf labels to inventory, pricing, and replenishment systems.
Fast industrial scanning
Laser and imager guns decode barcodes in milliseconds across conveyors, docks, and pick faces.
Check-digit integrity
Built-in check digits catch typos before bad labels enter the supply chain.
Print-friendly artwork
SVG and PNG exports drop into label templates, corrugated print, and thermal ribbon workflows.
Works with phone cameras too
Modern camera scanners read many 1D and 2D codes for field checks when a gun is unavailable.