Free Barcode Generator

Generate a scannable barcode from any value — CODE128, EAN-13, UPC or CODE39 — and download it as a PNG or SVG. Runs entirely in your browser, free and without a signup.

Free vs paid — when to upgrade

What this free tool is great for: a quick, one-off job with no signup — it runs entirely in your browser, so nothing leaves your device and there's nothing to manage.

Its honest limit: it produces a one-off output — it won't store, track, brand or manage them at scale, and it can't tell you what happens after you share it.

Where Barcodes Talk does more: This makes a barcode image from a number you provide. To sell on Amazon, retail or globally you need official, registered GS1 numbers that won't clash with another product — that's what Barcodes Talk supplies.

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Affiliate link — we may earn a commission if you sign up, at no cost to you. It never changes our honest take.

The stripes that run global commerce

Every product on every shelf carries one, every parcel in every depot gets scanned by one — the humble barcode is still the backbone of physical commerce, decades after its invention. It's also widely misunderstood: people assume the stripes contain the product's name or price, when a barcode is really just a number printed in a machine-readable font. All the meaning lives in databases that look the number up. This generator draws that machine-readable image from any number you give it — and the sections below explain the parts people get wrong, from choosing the right format to the crucial difference between drawing a barcode and owning one.

A barcode is a number, not a product

This is the mental model that makes everything click: the barcode image encodes only digits. When a supermarket till scans it, the till reads the number and looks it up in the store's own database, which is where the name and price actually live. That means two things. First, generating a barcode image is trivial — any number can be drawn as stripes, which is exactly what this tool does. Second, a barcode is only useful if the systems scanning it recognise the number — which is why retail products need officially registered numbers, while your internal inventory can use any numbering scheme you invent, because you control the database that looks it up.

Choosing the right format

The formats serve different worlds. EAN-13 and UPC-A are the retail codes on consumer products — UPC dominant in North America, EAN everywhere else — encoding the globally-unique article numbers shops rely on. CODE128 is the workhorse of logistics and internal use: compact, flexible, able to encode letters as well as digits, ideal for shipping labels, asset tags and warehouse bins. CODE39 is an older industrial format still common in government and manufacturing contexts; it's less dense but famously tolerant. The rule of thumb: selling in shops means EAN or UPC with registered numbers; everything in-house or logistics runs happily on CODE128.

The check digit: why some numbers get rejected

Retail formats include a built-in tripwire against typos: the final digit is a check digit, computed from all the others by a fixed formula. When a scanner reads the code, it recomputes that digit and rejects the scan if it doesn't match — catching misreads and mistyped numbers before they corrupt an inventory system. This is why you can't invent a random thirteen-digit number and expect it to validate: the last digit has to be mathematically correct. It's a tiny piece of engineering elegance from the 1970s that still silently prevents millions of errors a day.

Drawing a barcode versus owning one — the crucial difference

Here's the trap that catches new sellers: this tool (or any tool) can draw a perfectly scannable EAN-13 from any valid number — but for retail, the number itself must be officially yours. Global article numbers are issued through GS1, the international standards body; that registration is what guarantees your product's number is unique worldwide and recognised by retailers and marketplaces. Amazon and most serious retailers verify numbers against GS1 records, and 'cheap GTINs' from resellers routinely fail that check. So be clear about which job you're doing: internal labels, free numbering, this tool is all you need; products for retail shelves or marketplaces, the barcode image is the easy half — the registered number underneath is the part that costs money and matters.

Printing barcodes that actually scan

Like QR codes, most barcode failures are physical. Size matters: shrink a barcode too far and cheap laser scanners can't resolve the stripes. Contrast matters more: dark bars on a light background, never inverted, never on glossy material that throws reflections, never in red tones that many scanners literally cannot see. Preserve the quiet zones — the blank margins either side of the stripes — because text or borders crowding them break scans. And print crisp: a slightly blurry barcode that looks fine to your eye is noise to a scanner. Test with a real scanner (or a phone scanning app) at real size before committing to a print run.

Barcodes for your own operation

You don't need to sell in supermarkets to benefit from barcodes. Any small operation drowning in stock — a webshop's shelf bins, a workshop's tools, a clinic's supplies — gets faster and more accurate the moment items carry scannable labels tied to a simple database or spreadsheet. Invent your own numbering, print CODE128 labels with this tool, scan with a cheap USB scanner or a phone. Picking errors drop, stocktakes shrink from days to hours, and nobody deciphers handwriting anymore. It's one of the highest-return, lowest-glamour upgrades a physical operation can make, and the generator above is genuinely all the software you need to start.

Barcodes versus QR codes — which stripes for which job

People increasingly ask why anyone still uses stripes when QR codes hold more data. The answer is infrastructure and cost: the world's tills, warehouse scanners and logistics systems are built around one-dimensional barcodes, and a laser barcode scanner is cheaper and faster at the checkout than image-based scanning. QR codes win when a human with a phone is the scanner or the payload is a URL; traditional barcodes win when a dedicated scanner reads a number that a database resolves — which is essentially all of retail and warehousing. They are not competitors so much as tools for different readers: QR for people's phones, barcodes for commerce's machines. Most product packaging sensibly carries both.

The image is free — the registered number isn't — where Barcodes Talk does more

This generator draws any barcode you need, free, forever — and for internal use, that's the whole job done. But if you're preparing products for Amazon, retail shelves or distributors, what you actually need is GS1-registered numbers that verify as yours — that's the part a drawing tool can't provide. That's where a service like Barcodes Talk does more: it supplies legitimate, GS1-originated barcode numbers ready for retail and marketplace listing, handling the registration side so your products pass verification instead of bouncing. Draw your labels here; when the number itself has to be official, get it from a proper source — because in retail, the number is the product's passport.

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