Barcode value
SKU, location code, asset tag, or serial. Code 39 supports A-Z, 0-9, hyphen, period, and space.
Free generator
Barcode generator
Type a SKU, bin code, or asset tag and get a scannable Code 39 barcode as a downloadable SVG, with human-readable text beneath. Runs entirely in your browser, and nothing is uploaded.
Best for
Teams printing one-off or small-batch SKU labels, bin labels, shelf labels, and equipment tags before committing to a label printer workflow.
Not for
Shipping-carrier labels, GS1-certified retail UPC assignment, or bulk label runs. For hundreds of labels, generate from your inventory system instead.
Generator
Generate a Code 39 barcode label.
Type a SKU, bin code, or asset tag and download the barcode as an SVG. Code 39 prints cleanly at any size and nearly every scanner reads it without configuration.
Supported characters
Code 39 supports uppercase letters A to Z, digits 0 to 9, hyphen, period, and space. Lowercase input is converted to uppercase; unsupported characters are dropped. For long codes or dense data, use Code 128 or QR from your label software instead.
Preview
Enter a value above to render the barcode. JavaScript is required for the preview and download.
The SVG scales to any label size without losing scan quality.
Order3 prints SKU and bin labels directly from item records, so new SKUs get labels the day they arrive.
Review this with Order3Inputs
What you need
Keep the inputs practical. If the data is not trustworthy yet, use the tool to expose what needs cleanup before automation.
Label text
Optional human-readable line shown beneath the bars, such as the item name.
Outputs
What you get
The useful output is a rule, template, or plan an operator can review with the team and later move into the inventory system.
Code 39 barcode SVG
A vector file that scales to any label size without losing scan quality.
Live preview
The barcode renders as you type, so you can check the value before printing.
Human-readable line
The text beneath the bars, so people can read what scanners scan.
Make it stick
Make labels part of the daily flow.
A label that only prints when one person has the spreadsheet open will drift. The system holds when every new SKU gets its label the day it arrives.
Step 01
Label locations before every item
Location labels make scan-the-bin, scan-the-item workflows practical. Most teams get more accuracy from bin labels than from relabeling every supplier item.
Step 02
Pick the symbology for the job
Code 39, which this generator produces, is the simplest to print and nearly every scanner reads it without configuration. Code 128 packs more characters into less width, so prefer it for long codes on small labels. Use QR when a phone should open a record or when the barcode needs to hold more than an ID.
Step 03
Make label printing operational
A new SKU should get a label immediately. If labels require a separate spreadsheet and one person with printer access, the system will drift.
Order3 fit
Turn this free tool into a live workflow.
Order3 stores the item records, locations, counts, thresholds, scans, reports, approvals, and purchasing drafts that sit behind this one calculation or template.
Frequently asked questions
What barcode format should inventory labels use?
Code 39 and Code 128 both work well for internal SKU and location labels. Code 39 is simpler to print and universally scannable; Code 128 fits longer codes on smaller labels. QR works well for asset tags or labels that should open a record on a phone. Data Matrix is better for very small labels or harsh environments.
Should I label bins or products first?
Label bins and locations first if you run counts, transfers, or putaway. Item labels help too, but location labels create the structure that keeps counts accurate.
Can I use supplier UPC codes instead of printing labels?
Yes, when supplier codes exist and your inventory system can store UPC or EAN as alternate identifiers. You will still need internal labels for bins, shelves, locations, and many assets.
How do I create a barcode?
Type the value you want to encode (a SKU, bin code, or asset tag) into the field above. The barcode renders as you type, and you download it as an SVG you can print at any size. No design tool needed.
Is this barcode generator free?
Yes. It runs entirely in your browser with no account and no email. Generate and download as many Code 39 barcodes as you want.
How do barcodes work?
A barcode encodes a short string as a pattern of bars and spaces that a scanner reads back as that string. Code 39, which this tool produces, maps each letter, digit, and a few symbols to a fixed bar pattern, so the scanner returns exactly the SKU or code you printed.
Related
Keep going
Move from the free resource to the use cases, features, and guides that make the workflow operational.