What are the Uline equivalents for common Avery label templates?

Common equivalents include: Avery 6870 = Uline S-21844 (2.25" × 0.75", 30/sheet), Avery 5160 = Uline S-5042 (2.625" × 1", 30/sheet), Avery 5195 = Uline S-21929 (1.75" × 0.66", 60/sheet), Avery 5163 = Uline S-3845 (4" × 2", 10/sheet), and Avery 5167 = Uline S-15183 / S-16988 / S-17379 (1.75" × 0.5", 80/sheet).

How does 'Full Page per Row' vs '1 Label per Row' work for spreadsheets?

'1 Label per Row' prints each spreadsheet row sequentially across individual label slots. 'Full Page per Row' populates an entire sheet with that specific barcode and text (e.g. 30 labels on a 30-up sheet), so a 20-row spreadsheet generates 20 full pages.

How do I fix barcodes not lining up on physical label sheets?

Printers have roller feed tolerances that vary by 0.5mm to 2mm. Best Barcodes includes a Micro-Calibration panel where you can shift the Page Top Margin and Page Left Margin in millimeter increments until test prints line up with physical label cutouts.

Are my spreadsheets and barcode numbers kept private?

Yes, 100%. Best Barcodes runs completely in your web browser. All CSV and Excel parsing, barcode generation, and PDF rendering happen client-side. No customer data or barcode numbers are ever sent to a server.

Best Barcodes | Free Online Label & Barcode Generator (Avery, Uline & Spreadsheets)

1 Barcode Data 30 labels (1 sheet)

Click to browse or drag & drop

.csv, .xlsx, or .xls (Max 5MB • Up to 50 rows • Up to 4 columns)

Spreadsheet Fill Mode 1 Label / Row

1 Label per Row

Full Page per Row

⬇ Download CSV Template

2 Choose Template

Label Template (Avery, Uline & Compatible)

Barcode Type

Barcode Scaling

Fixed Width (Centered)

Stretch to Fill Width

3 Calibrate

Page Top Margin

Page Left Margin

Inner Nudge Y (↕)

Inner Nudge X (↔)

Barcode Bar Height

Name Font Size (pt)

4 Profiles & Sharing

Import JSON

📖 Label Printing Guide & FAQ

Does Best Barcodes work with Uline, Avery & generic labels?

Yes! Best Barcodes is engineered for standard US Letter label sheets. It works interchangeably with Avery®, Uline®, OnlineLabels®, Amazon Basics, and unbranded blank label sheets. Select the matching dimensions (e.g. 2.25" × 0.75" for Avery 6870 or Uline S-21844) and print directly without proprietary brand lock-in.

What are the Uline equivalents for standard Avery templates?

Our templates map directly to popular Uline equivalents:
• Avery 6870 (2.25" × 0.75", 30/sheet) = Uline S-21844
• Avery 5160 (2.625" × 1.0", 30/sheet) = Uline S-5042
• Avery 5195 (1.75" × 0.66", 60/sheet) = Uline S-21929
• Avery 5163 (4.0" × 2.0", 10/sheet) = Uline S-3845
• Avery 5167 (1.75" × 0.5", 80/sheet) = Uline S-15183 / S-16988 / S-17379
• Avery 5161 (4.0" × 1.0", 20/sheet) = Uline S-5044

How does "Full Page per Row" vs "1 Label per Row" work?

1 Label per Row prints each row of your uploaded spreadsheet onto 1 label sequentially. Full Page per Row fills an entire sheet with that specific barcode and text (e.g. 30 labels on a 30-up template, 60 on a 60-up template), so a 20-row spreadsheet outputs 20 full sheets ready for warehouse batching.

How do I fix barcodes not lining up on physical sheets?

Printer feed rollers routinely drift by 0.5mm to 2mm. In Step 3 (Calibrate), adjust the Page Top Margin and Page Left Margin in 0.5mm increments until your test printout aligns with physical label cutouts.

What printer settings should I use?

In your browser print dialog, always set Scale to 100% (Actual Size, never "Fit to Page"), select US Letter (8.5 × 11 in), set Margins to None or Default, and ensure background vector graphics are enabled.

Are my spreadsheets and barcodes private?

Yes. Best Barcodes is 100% client-side. Spreadsheets and barcode values are processed locally in your browser memory and never transmitted to any external server.